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  1. 24 Jul, 2008 1 commit
    • Kristofer Pettersson's avatar
      Bug#38002 table_cache consumes too much memory with blobs · 54841382
      Kristofer Pettersson authored
           
      Tables in the table definition cache are keeping a cache buffer for blob
      fields which can consume a lot of memory.
          
      This patch introduces a maximum size threshold for these buffers.
      
      
      sql/sql_base.cc:
        Added function free_field_buffers_larger_than to reclaim memory from blob
        field buffers too large to be cached.
      sql/table.cc:
        Added function free_field_buffers_larger_than
      54841382
  2. 20 May, 2008 1 commit
    • unknown's avatar
      Bug#27430 "Crash in subquery code when in PS and table DDL changed after · 37b2c32d
      unknown authored
      PREPARE": rename members, methods, classes to follow the spec 
      (a code review request)
      
      
      sql/mysql_priv.h:
        enum_metadata_type -> enum_table_ref_type
      sql/sp_head.cc:
        Metadata_version_observer -> Reprepare_observer
      sql/sql_base.cc:
        metadata -> table_ref
      sql/sql_class.cc:
        Replace an abstract interface with a concrete implementation.
      sql/sql_class.h:
        enum_metadata_type -> enum_table_ref_type
      sql/sql_prepare.cc:
        Move implementation of Execute_observer to sql_class.cc and
        rename the class to Reprepare_observer.
        Use getters instead of direct access to the members.
      sql/table.h:
        metadata -> table_ref
      37b2c32d
  3. 17 May, 2008 1 commit
    • unknown's avatar
      Implement some code review fixes for the fix for Bug#27430 · 1cf0b5cb
      unknown authored
      "Crash in subquery code when in PS and table DDL changed after PREPARE"
      
      
      include/my_sys.h:
        Add two new flags for my_error(). These flags help parameterize
        behavoiur of my_message_sql()
      sql/item.cc:
        Update comments.
        Fix a typo in Item_param::set_param_type_and_swap_value()
      sql/mysqld.cc:
        Implement two additional flags for my_error():
         - if ME_NO_SP_HANDLER is specified, ignore stored procedure continue/
            exit handlers
         - if ME_NO_WARNING_FOR_ERROR is specified, do not push warning
      sql/sql_base.cc:
        Update comments.
        Rename a few methods.
      sql/sql_class.h:
        Update and improve comments.
      sql/sql_prepare.cc:
        Update comments.
        Style changes.
      sql/table.h:
        Update comments.
        Style changes.
        Rename a few methods.
      tests/mysql_client_test.c:
        Zero the bind array, to follow C API requirements.
      1cf0b5cb
  4. 16 Apr, 2008 1 commit
    • unknown's avatar
      WL#4165 "Prepared statements: validation". · bd2a7328
      unknown authored
      Add metadata validation to ~20 more SQL commands. Make sure that
      these commands actually work in ps-protocol, since until now they
      were enabled, but not carefully tested.
      Fixes the ml003 bug found by Matthias during internal testing of the
      patch.
      
      
      mysql-test/r/ps_ddl.result:
        Update test results (WL#4165)
      mysql-test/t/ps_ddl.test:
        Cover with tests metadata validation of 26 SQL statements.
      sql/mysql_priv.h:
        Fix the name in the comment.
      sql/sp_head.cc:
        Changed the way the observer is removed in case of stored procedures
        to support validation prepare stmt from "call p1(<expr>)": whereas
        tables used in the expression must be validated, substatements
        of p1 must not.
        The previous scheme used to silence the observer only in stored
        functions and triggers.
      sql/sql_class.cc:
        Now the observer is silenced in sp_head::execute(). Remove it from
        Sub_statement_state.
      sql/sql_class.h:
        Now the observer is silenced in sp_head::execute(). Remove it from
        Sub_statement_state.
      sql/sql_parse.cc:
        Add CF_REEXECUTION_FRAGILE to 20 more SQLCOMs that need it.
      sql/sql_prepare.cc:
        Add metadata validation to ~20 new SQLCOMs that need it.
        Fix memory leaks with expressions used in SHOW DATABASES and CALL
        (and prepared statements).
        We need to fix all expressions at prepare, since if these expressions
        use subqueries, there are one-time transformations of the parse
        tree that must be done at prepare. 
        List of fixed commands includes: SHOW TABLES, SHOW DATABASES,
        SHOW TRIGGERS, SHOW EVENTS, SHOW OPEN TABLES,SHOW KEYS, SHOW FIELDS, 
        SHOW COLLATIONS, SHOW CHARSETS, SHOW VARIABLES, SHOW TATUS, SHOW TABLE
        STATUS, SHOW PROCEDURE STATUS, SHOW FUNCTION STATUS, CALL.
        Add comment to set_parameters().
      sql/table.h:
        Update comments.
      bd2a7328
  5. 08 Apr, 2008 1 commit
    • unknown's avatar
      Tentative implementation of · a63dde5a
      unknown authored
      WL#4165 Prepared statements: validation 
      WL#4166 Prepared statements: automatic re-prepare
      Fixes
      Bug#27430 Crash in subquery code when in PS and table DDL changed after PREPARE
      Bug#27690 Re-execution of prepared statement after table was replaced with a view crashes
      Bug#27420 A combination of PS and view operations cause error + assertion on shutdown
      
      The basic idea of the patch is to keep track of table metadata between
      prepared statement prepare and execute. If some table used in the statement
      has changed, the prepared statement is re-prepared before execution.
      
      See WL#4165 and WL#4166 contents and comments in the code for details
      of the implementation.
      
      
      include/my_global.h:
        Remove 'register' keyword to avoid warnings when swapping large structures
        that don't fit into a register. Any modern compiler is capable of placing
        a variable in a register when that would benefit performance.
      mysql-test/r/ps_1general.result:
        Update test results: since now we re-prepare automatically,
        more correct results are produced in prepare-ddl-execute scenario.
      mysql-test/r/query_cache_merge.result:
        Ensure that the table definition cache is large enough for
        the test to pass in --ps-protocol
      mysql-test/r/trigger.result:
        Update test results to reflect automatic statement reprepare.
      mysql-test/t/disabled.def:
        Enable ps_ddl.test, which now passes.
      mysql-test/t/ps_1general.test:
        Since now we re-execute prepared statements after DDL successfully,
        change the test to produce repeatable results. Remove expectancy of
        an error in one place where now we automatically reprepare the prepared
        statement.
      mysql-test/t/query_cache_merge.test:
        Ensure the table definition cache is large enough for the test to pass
        in --ps-protocol
      mysql-test/t/trigger.test:
        Sinc
      sql/item.cc:
        Implement Item_param "copy" functionality, used at re-prepare of
        a prepared statement.
        We copy the type of the original parameter, and move the assigned value,
        if any. Sic, the value is "moved", since it can be quite big --
        e.g. in case we deal with a LONG DATA parameter.
        It's essential to move the value from the old parameter since
        at the time of re-prepare the client packet with the necessary information
        may be not available.
      sql/item.h:
        Declare a new method used for reprepare.
      sql/my_decimal.h:
        Implement "swap()" functionality of class my_decimal to be
        able to easily swap two decimal values.
      sql/mysql_priv.h:
        Declare enum_metadata_type.
      sql/mysqld.cc:
        Implement a status variable for the number of reprepared statements.
      sql/sql_base.cc:
        Implement metadata version validation.
      sql/share/errmsg.txt:
        Add two new error messages: ER_NEED_REPREPARE and ER_PS_REBIND.
        The first error (theoretically) never reaches the user.
        It is issued by the metadata validation framework when a metadata version
        has changed between prepare and execute. Later on it's intercepted
        and the statement is automatically re-prepared. Only if the error
        has occurred repeatedly MAX_REPREPARE_ATTEMTS (3) times do we
        return it to the user.
        
        The second error is issued when after re-prepare we discover
        that the metadata we sent over to the client using the binary
        protocol differs drammatically from the new result set metadata 
        that the reprepared statement produces (e.g. number of result
        set columns is different).
      sql/sql_class.cc:
        Implement metadata version validation framework.
      sql/sql_class.h:
        Declarations for metadata version validation framework.
      sql/sql_parse.cc:
        Mark commands for which we must invalidate and reprepare a prepared
        statement when metadata has changed.
      sql/sql_prepare.cc:
        Implement WL#4165 and WL#4166 (limited support of metadata validation
        and re-prepare).
      sql/table.h:
        Implement metadata validation.
      tests/mysql_client_test.c:
        Add a test case for WL#4166
      a63dde5a
  6. 07 Mar, 2008 1 commit
    • unknown's avatar
      Bug #34367: sql/sql_show.cc: create_schema_table should handle · 4aae2099
      unknown authored
      MYSQL_TYPE_NEWDECIMAL
      
      Added support for the type MYSQL_TYPE_NEWDECIMAL. It now works like
      MYSQL_TYPE_DECIMAL. Unfortunately there cannot be a test case until
      we have a working information_schema plugin as part of the source
      distribution.
      
      
      sql/sql_show.cc:
        Bug#34367: The fix. Corrected wrong comments and a DBUG_ENTER with wrong 
        function name.
      sql/table.h:
        Bug#34367: Added comments to st_field_info.
      4aae2099
  7. 22 Feb, 2008 1 commit
    • unknown's avatar
      Fix for Bug#30217: Views: changes in metadata behaviour · a3e83048
      unknown authored
      between 5.0 and 5.1.
        
      The problem was that in the patch for Bug#11986 it was decided
      to store original query in UTF8 encoding for the INFORMATION_SCHEMA.
      This approach however turned out to be quite difficult to implement
      properly. The main problem is to preserve the same IS-output after
      dump/restore.
        
      So, the fix is to rollback to the previous functionality, but also
      to fix it to support multi-character-set-queries properly. The idea
      is to generate INFORMATION_SCHEMA-query from the item-tree after
      parsing view declaration. The IS-query should:
        - be completely in UTF8;
        - not contain character set introducers.
        
      For more information, see WL4052.
      
      
      mysql-test/include/ddl_i18n.check_views.inc:
        Add a test case for Bug#30217.
      mysql-test/r/ddl_i18n_koi8r.result:
        Update result file.
      mysql-test/r/ddl_i18n_utf8.result:
        Update result file.
      mysql-test/r/information_schema.result:
        Update result file.
      mysql-test/r/information_schema_db.result:
        Update result file.
      mysql-test/r/mysqldump.result:
        Update result file.
      mysql-test/r/show_check.result:
        Update result file.
      mysql-test/t/ddl_i18n_koi8r.test:
        Add a test case for Bug#30217.
      mysql-test/t/ddl_i18n_utf8.test:
        Add a test case for Bug#30217.
      mysql-test/t/mysqldump.test:
        Add a test case for Bug#30217.
      sql/ha_ndbcluster.cc:
        Add a parameter to print().
      sql/item.cc:
        1. Add a parameter to print().
        2. Item_string::print():
              - Do not append character set introducer to the text literal
                if we're building a query for INFORMATION_SCHEMA;
              - Convert text literal to UTF8 if we're building a query
                for INFORMATION_SCHEMA.
      sql/item.h:
        Add a parameter to print().
      sql/item_cmpfunc.cc:
        Add a parameter to print().
      sql/item_cmpfunc.h:
        Add a parameter to print().
      sql/item_func.cc:
        Add a parameter to print().
      sql/item_func.h:
        Add a parameter to print().
      sql/item_geofunc.h:
        Add a parameter to print().
      sql/item_row.cc:
        Add a parameter to print().
      sql/item_row.h:
        Add a parameter to print().
      sql/item_strfunc.cc:
        Add a parameter to print().
      sql/item_strfunc.h:
        Add a parameter to print().
      sql/item_subselect.cc:
        Add a parameter to print().
      sql/item_subselect.h:
        Add a parameter to print().
      sql/item_sum.cc:
        Add a parameter to print().
      sql/item_sum.h:
        Add a parameter to print().
      sql/item_timefunc.cc:
        Add a parameter to print().
      sql/item_timefunc.h:
        Add a parameter to print().
      sql/mysql_priv.h:
        Add a parameter to print().
      sql/sp_head.cc:
        Add a parameter to print().
      sql/sql_lex.cc:
        Add a parameter to print().
      sql/sql_lex.h:
        Add a parameter to print().
      sql/sql_parse.cc:
        Add a parameter to print().
      sql/sql_select.cc:
        Add a parameter to print().
      sql/sql_show.cc:
        Add a parameter to print().
      sql/sql_test.cc:
        Add a parameter to print().
      sql/sql_view.cc:
        Build INFORMATION_SCHEMA query from Item-tree.
      sql/sql_yacc.yy:
        Build INFORMATION_SCHEMA query from Item-tree.
      sql/table.h:
        Add a parameter to print().
      a3e83048
  8. 23 Nov, 2007 1 commit
    • unknown's avatar
      Bug#30152 MySQLD crash duing alter table causes DROP DATABASE to FAIL due to temp file · 9a34c80e
      unknown authored
      disable decoding of table name if the table is internal temporary table
      
      
      mysql-test/r/drop.result:
        test result
      mysql-test/t/drop.test:
        test case
      sql/sql_db.cc:
        check is the name is internal tmp table name
      sql/sql_table.cc:
        disable decoding of table name if the table is internal temporary table
      sql/table.h:
        added flag which is true when table name is the name of internal temporary table
      9a34c80e
  9. 15 Nov, 2007 1 commit
    • unknown's avatar
      Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE · c8450b27
      unknown authored
                  corrupts a MERGE table
      Bug 26867 - LOCK TABLES + REPAIR + merge table result in
                  memory/cpu hogging
      Bug 26377 - Deadlock with MERGE and FLUSH TABLE
      Bug 25038 - Waiting TRUNCATE
      Bug 25700 - merge base tables get corrupted by
                  optimize/analyze/repair table
      Bug 30275 - Merge tables: flush tables or unlock tables
                  causes server to crash
      Bug 19627 - temporary merge table locking
      Bug 27660 - Falcon: merge table possible
      Bug 30273 - merge tables: Can't lock file (errno: 155)
      
      The problems were:
      
      Bug 26379 - Combination of FLUSH TABLE and REPAIR TABLE
                      corrupts a MERGE table
      
        1. A thread trying to lock a MERGE table performs busy waiting while
           REPAIR TABLE or a similar table administration task is ongoing on
           one or more of its MyISAM tables.
        
        2. A thread trying to lock a MERGE table performs busy waiting until all
           threads that did REPAIR TABLE or similar table administration tasks
           on one or more of its MyISAM tables in LOCK TABLES segments do UNLOCK
           TABLES. The difference against problem #1 is that the busy waiting
           takes place *after* the administration task. It is terminated by
           UNLOCK TABLES only.
        
        3. Two FLUSH TABLES within a LOCK TABLES segment can invalidate the
           lock. This does *not* require a MERGE table. The first FLUSH TABLES
           can be replaced by any statement that requires other threads to
           reopen the table. In 5.0 and 5.1 a single FLUSH TABLES can provoke
           the problem.
      
      Bug 26867 - LOCK TABLES + REPAIR + merge table result in
                  memory/cpu hogging
      
        Trying DML on a MERGE table, which has a child locked and
        repaired by another thread, made an infinite loop in the server.
      
      Bug 26377 - Deadlock with MERGE and FLUSH TABLE
      
        Locking a MERGE table and its children in parent-child order
        and flushing the child deadlocked the server.
      
      Bug 25038 - Waiting TRUNCATE
      
        Truncating a MERGE child, while the MERGE table was in use,
        let the truncate fail instead of waiting for the table to
        become free.
      
      Bug 25700 - merge base tables get corrupted by
                  optimize/analyze/repair table
      
        Repairing a child of an open MERGE table corrupted the child.
        It was necessary to FLUSH the child first.
      
      Bug 30275 - Merge tables: flush tables or unlock tables
                  causes server to crash
      
        Flushing and optimizing locked MERGE children crashed the server.
      
      Bug 19627 - temporary merge table locking
      
        Use of a temporary MERGE table with non-temporary children
        could corrupt the children.
      
        Temporary tables are never locked. So we do now prohibit
        non-temporary chidlren of a temporary MERGE table.
      
      Bug 27660 - Falcon: merge table possible
      
        It was possible to create a MERGE table with non-MyISAM children.
      
      Bug 30273 - merge tables: Can't lock file (errno: 155)
      
        This was a Windows-only bug. Table administration statements
        sometimes failed with "Can't lock file (errno: 155)".
      
      These bugs are fixed by a new implementation of MERGE table open.
      
      When opening a MERGE table in open_tables() we do now add the
      child tables to the list of tables to be opened by open_tables()
      (the "query_list"). The children are not opened in the handler at
      this stage.
      
      After opening the parent, open_tables() opens each child from the
      now extended query_list. When the last child is opened, we remove
      the children from the query_list again and attach the children to
      the parent. This behaves similar to the old open. However it does
      not open the MyISAM tables directly, but grabs them from the already
      open children.
      
      When closing a MERGE table in close_thread_table() we detach the
      children only. Closing of the children is done implicitly because
      they are in thd->open_tables.
      
      For more detail see the comment at the top of ha_myisammrg.cc.
      
      Changed from open_ltable() to open_and_lock_tables() in all places
      that can be relevant for MERGE tables. The latter can handle tables
      added to the list on the fly. When open_ltable() was used in a loop
      over a list of tables, the list must be temporarily terminated
      after every table for open_and_lock_tables().
      table_list->required_type is set to FRMTYPE_TABLE to avoid open of
      special tables. Handling of derived tables is suppressed.
      These details are handled by the new function
      open_n_lock_single_table(), which has nearly the same signature as
      open_ltable() and can replace it in most cases.
      
      In reopen_tables() some of the tables open by a thread can be
      closed and reopened. When a MERGE child is affected, the parent
      must be closed and reopened too. Closing of the parent is forced
      before the first child is closed. Reopen happens in the order of
      thd->open_tables. MERGE parents do not attach their children
      automatically at open. This is done after all tables are reopened.
      So all children are open when attaching them.
      
      Special lock handling like mysql_lock_abort() or mysql_lock_remove()
      needs to be suppressed for MERGE children or forwarded to the parent.
      This depends on the situation. In loops over all open tables one
      suppresses child lock handling. When a single table is touched,
      forwarding is done.
      
      Behavioral changes:
      ===================
      
      This patch changes the behavior of temporary MERGE tables.
      Temporary MERGE must have temporary children.
      The old behavior was wrong. A temporary table is not locked. Hence
      even non-temporary children were not locked. See
      Bug 19627 - temporary merge table locking.
      
      You cannot change the union list of a non-temporary MERGE table
      when LOCK TABLES is in effect. The following does *not* work:
      CREATE TABLE m1 ... ENGINE=MRG_MYISAM ...;
      LOCK TABLES t1 WRITE, t2 WRITE, m1 WRITE;
      ALTER TABLE m1 ... UNION=(t1,t2) ...;
      However, you can do this with a temporary MERGE table.
      
      You cannot create a MERGE table with CREATE ... SELECT, neither
      as a temporary MERGE table, nor as a non-temporary MERGE table.
      CREATE TABLE m1 ... ENGINE=MRG_MYISAM ... SELECT ...;
      Gives error message: table is not BASE TABLE.
      
      
      include/my_base.h:
        Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
                    corrupts a MERGE table
        Added HA_EXTRA_ATTACH_CHILDREN and HA_EXTRA_DETACH_CHILDREN.
      include/myisammrg.h:
        Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
                    corrupts a MERGE table
        Added element 'children_attached' to MYRG_INFO.
        Added declarations for myrg_parent_open(),
        myrg_attach_children() and myrg_detach_children()
        for the new MERGE table open approach.
      mysql-test/extra/binlog_tests/blackhole.test:
        Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
                    corrupts a MERGE table
        Preliminarily added new error message with a comment.
      mysql-test/r/create.result:
        Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
                    corrupts a MERGE table
        Fixed test result.
      mysql-test/r/delayed.result:
        Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
                    corrupts a MERGE table
        Moved test result from here to merge.result.
      mysql-test/r/merge.result:
        Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
                    corrupts a MERGE table
        Fixed/added test result.
      mysql-test/r/myisam.result:
        Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
                    corrupts a MERGE table
        Moved test result for bug 8306 from here to merge.result.
      mysql-test/suite/binlog/r/binlog_stm_blackhole.result:
        Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
                    corrupts a MERGE table
        Fixed test result.
      mysql-test/t/create.test:
        Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
                    corrupts a MERGE table
        Fixed error number.
      mysql-test/t/delayed.test:
        Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
                    corrupts a MERGE table
        Moved test from here to merge.test.
      mysql-test/t/merge.test:
        Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
                    corrupts a MERGE table
        Fixed test for new temporary MERGE table behavior.
        Exchanged error numbers by symbolic codes.
        Added tests. Included are tests for bugs
        8306 (moved from myisam.test), 26379, 19627, 25038, 25700, 26377,
        26867, 27660, 30275, and 30273.
        Fixed changes resulting from disabled CREATE...SELECT.
        Integrated tests moved from delayed.test and myisam.test to here.
      mysql-test/t/myisam.test:
        Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
                    corrupts a MERGE table
        Moved test for bug 8306 from here to merge.test.
      mysys/thr_lock.c:
        Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
                    corrupts a MERGE table
        Added code to let the owner of a high priority lock (TL_WRITE_ONLY)
        to bypass its own lock.
      sql/ha_ndbcluster_binlog.cc:
        Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
                    corrupts a MERGE table
        Added 'thd' argument to init_tmp_table_share().
      sql/handler.cc:
        Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
                    corrupts a MERGE table
        Added 'thd' argument to init_tmp_table_share().
      sql/mysql_priv.h:
        Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
                    corrupts a MERGE table
        Removed declaration of check_merge_table_access(). It is now static
        in sql_parse.cc.
        Added declaration for fix_merge_after_open().
        Renamed open_and_lock_tables() to open_and_lock_tables_derived()
        with additional parameter 'derived'.
        Added inline functions simple_open_n_lock_tables() and
        open_and_lock_tables(), which call open_and_lock_tables_derived()
        and add the argument for 'derived'.
        Added new function open_n_lock_single_table(), which can be used
        as an replacement for open_ltable() in most situations. Internally
        it calls simple_open_n_lock_tables() so hat it is appropriate for
        MERGE tables.
        Added 'thd' argument to init_tmp_table_share().
      sql/slave.cc:
        ug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
                    corrupts a MERGE table
        Added comment.
      sql/sql_base.cc:
        Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
                    corrupts a MERGE table
        
        Defined new functions add_merge_table_list(),
        attach_merge_children(), detach_merge_children(), and
        fix_merge_after_open() for the new MERGE table open approach.
        
        Added calls of the new functions to
        close_handle_and_leave_table_as_lock(), close_thread_tables(),
        close_thread_table(), unlink_open_table(), reopen_name_locked_table(),
        reopen_table(), drop_locked_tables(), close_temporary_table(),
        and open_tables() respectively.
        
        Prevented special lock handling of merge children (like
        mysql_lock_remove, mysql_lock_merge or mysql_lock_abort)
        at many places. Some of these calls are forwarded to the
        parent table instead.
        
        Added code to set thd->some_tables_deleted for every thread that has
        a table open that we are flushing.
        Added code for MERGE tables to unlink_open_table().
        Added MERGE children to the list of unusable tables in open_table().
        Added MERGE table handling to reopen_table().
        Added lock handling and closing of a parent before the children
        in close_data_files_and_morph_locks().
        Added code for re-attaching children in reopen_tables().
        Added MYSQL_LOCK_NOTIFY_IF_NEED_REOPEN to the locking flags and
        error reporting after mysql_lock_tables() in reopen_tables().
        Added lock handling and closing of a parent before the children
        in close_old_data_files().
        Added lock handling and detaching in drop_locked_tables().
        Added code for removing the children list from the statement list
        to prepare for a repetition in open_tables().
        Added new function open_n_lock_single_table(), which can be used
        as an replacement for open_ltable() in most situations. Internally
        it calls simple_open_n_lock_tables() so hat it is appropriate for
        MERGE tables.
        Disabled use of open_ltable() for MERGE tables.
        Removed function simple_open_n_lock_tables(). It is now inline
        declared in mysql_priv.h.
        Renamed open_and_lock_tables() to open_and_lock_tables_derived()
        with additional parameter 'derived'. open_and_lock_tables() is now
        inline declared in mysql_priv.h.
        Added a check for end-of-list in two loops in lock_tables().
        Added 'thd' argument to init_tmp_table_share().
      sql/sql_insert.cc:
        Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
                    corrupts a MERGE table
        Changed from open_ltable() to open_n_lock_single_table() in
        handle_delayed_insert().
        Reestablished LEX settings after lex initialization.
        Added 'thd' argument to init_tmp_table_share().
      sql/sql_parse.cc:
        Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
                    corrupts a MERGE table
        Made check_merge_table_access() a static function.
        Disabled use of CREATE...SELECT for MERGE tables.
      sql/sql_partition.cc:
        Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
                    corrupts a MERGE table
        Fixed comment typo.
      sql/sql_select.cc:
        Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
                    corrupts a MERGE table
        Added 'thd' argument to init_tmp_table_share().
      sql/sql_table.cc:
        Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
                    corrupts a MERGE table
        Optimized use of mysql_ha_flush() in mysql_rm_table_part2().
        Disabled the use of MERGE tables with prepare_for_restore() and
        prepare_for_repair().
        Changed from open_ltable() to open_n_lock_single_table() in
        mysql_alter_table() and mysql_checksum_table().
        Disabled change of child list under LOCK TABLES.
        Initialized table_list->table in mysql_recreate_table().
      sql/sql_trigger.cc:
        Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
                    corrupts a MERGE table
        Added code for allowing CREATE TRIGGER under LOCK TABLE, to be able
        to test it with MERGE tables.
      sql/table.cc:
        Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
                    corrupts a MERGE table
        Added 'thd' argument to init_tmp_table_share().
        Setting table_map_id from query_id in init_tmp_table_share().
        Added member function TABLE::is_children_attached().
      sql/table.h:
        Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
                    corrupts a MERGE table
        Added access method get_table_def_version() to TABLE_SHARE.
        Added elements for MERGE tables to TABLE and TABLE_LIST.
      storage/myisam/ha_myisam.cc:
        Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
                    corrupts a MERGE table
        Added an unrelated comment to the function comment of table2myisam().
      storage/myisam/ha_myisam.h:
        Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
                    corrupts a MERGE table
        Added new member function MI_INFO::file_ptr().
      storage/myisammrg/ha_myisammrg.cc:
        Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
                    corrupts a MERGE table
        Added callback functions to support parent open and children attach
        of MERGE tables.
        Changed ha_myisammrg::open() to initialize storage engine structures
        and create a list of child tables only. Child tables are not opened.
        Added ha_myisammrg::attach_children(), which does now the main part
        of MERGE open.
        Added ha_myisammrg::detach_children().
        Added calls to ::attach_children() and ::detach_children() to
        ::extra() on HA_EXTRA_ATTACH_CHILDREN and HA_EXTRA_DETACH_CHILDREN
        respectively.
        Added a check for matching TEMPORARY type for children against
        parent.
        Added a check for table def version.
        Added support for thd->open_options to attach_children().
        Changed child path name generation for temporary tables so that
        it does nothing special for temporary tables.
      storage/myisammrg/ha_myisammrg.h:
        Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
                    corrupts a MERGE table
        Added elements to class ha_myisammrg to support the new
        open approach.
        Changed empty destructor definition to a declaration.
        Implemented in ha_myisammrg.cc.
        Added declaration for methods attach_children() and
        detach_children().
        Added definition for method table_ptr() for use with
        callback functions.
      storage/myisammrg/myrg_close.c:
        Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
                    corrupts a MERGE table
        Added a check to avoid closing of MyISAM tables when the
        child tables are not attached.
        Added freeing of rec_per_key_part when the child tables
        are not attached.
      storage/myisammrg/myrg_extra.c:
        Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
                    corrupts a MERGE table
        Some ::extra() functions and ::reset() can be called when
        children are detached.
      storage/myisammrg/myrg_open.c:
        Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
                    corrupts a MERGE table
        
        Kept old myrg_open() for MERGE use independent from MySQL.
        Removed an always true condition in myrg_open().
        Set children_attached for independent MERGE use in myrg_open().
        
        Added myrg_parent_open(), myrg_attach_children(), and
        myrg_detach_children() for the new MERGE table open approach.
      mysql-test/r/merge-big.result:
        Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE corrupts a MERGE table
        New test result
      mysql-test/t/merge-big.test:
        Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE corrupts a MERGE table
        New test case
      c8450b27
  10. 01 Nov, 2007 1 commit
    • unknown's avatar
      Bug#30882 Dropping a temporary table inside a stored function may cause a server crash · 611dbd0b
      unknown authored
      If a stored function that contains a drop temporary table statement
      is invoked by a create temporary table of the same name may cause
      a server crash. The problem is that when dropping a table no check
      is done to ensure that table is not being used by some outer query
      (or outer statement), potentially leaving the outer query with a
      reference to a stale (freed) table.
      
      The solution is when dropping a temporary table, always check if
      the table is being used by some outer statement as a temporary
      table can be dropped inside stored procedures.
      
      The check is performed by looking at the TABLE::query_id value for
      temporary tables. To simplify this check and to solve a bug related
      to handling of temporary tables in prelocked mode, this patch changes
      the way in which this member is used to track the fact that table is
      used/unused. Now we ensure that TABLE::query_id is zero for unused
      temporary tables (which means that all temporary tables which were
      used by a statement should be marked as free for reuse after it's
      execution has been completed).
      
      
      mysql-test/include/handler.inc:
        Add test case for side effect of Bug#30882
      mysql-test/r/handler_innodb.result:
        Add test case result for side effect of Bug#30882
      mysql-test/r/handler_myisam.result:
        Add test case result for side effect of Bug#30882
      mysql-test/r/sp-error.result:
        Add test case result for Bug#30882
      mysql-test/t/sp-error.test:
        Add test case for Bug#30882
      sql/event_db_repository.cc:
        Update close_thread_tables call, no more default values.
      sql/mysql_priv.h:
        Remove implicit default parameters values of the close_thread_tables
        function as no callers are using it.
      sql/slave.cc:
        Update close_thread_tables call, no more default values
      sql/sp_head.cc:
        Update close_thread_tables call, no more default values
      sql/sql_base.cc:
        Changed the approach to distinguishing currently unused temporary tables.
        Now we ensure that such tables always have TABLE::query_id set to 0 and
        use this fact to perform checks during opening and dropping of temporary
        tables. This means that we have to call close_thread_tables() even for
        statements which use only temporary tables. To make this call cheaper,
        we re-factored close_thread_tables() to not take LOCK_open unless there
        are open base tables.
      sql/sql_handler.cc:
        Properly close temporary tables associated with a handler.
      sql/sql_insert.cc:
        close_temporary_table is now merged into drop_temporary_table.
      sql/sql_parse.cc:
        Now the condition doesn't cover all cases because close_thread_tables()
        must be called even for statements that use only temporary tables.
      sql/sql_table.cc:
        Use drop_temporary_table which perform checks to verify if
        the table is not being used. Error path problem is due to
        a handler tables issue and is going to be addressed in bug
        31397.
      sql/table.h:
        Rename previously unused clear_query_id and document the usage of
        query_id and open_by_handler.
      611dbd0b
  11. 11 Oct, 2007 1 commit
    • unknown's avatar
      Moved a lot of old bug fixes and safe cleanups from Maria 5.1 tree to 5.1 · fb84f573
      unknown authored
      - Reserver namespace and place in frm for TABLE_CHECKSUM and PAGE_CHECKSUM create options
      - Added syncing of directory when creating .frm files
      - Portability fixes
      - Added missing cast that could cause bugs
      - Code cleanups
      - Made some bit functions inline
      - Moved things out of myisam.h to my_handler.h to make them more accessable
      - Renamed some myisam variables and defines to make them more globaly usable (as they are used outside of MyISAM)
      - Fixed bugs in error conditions
      - Use compiler time asserts instead of run time
      - Fixed indentation
      HA_EXTRA_PREPARE_FOR_DELETE -> HA_EXTRA_PREPARE_FOR_DROP as the old name was wrong
      (Added a define for old value to ensure we don't break any old code)
      Added HA_EXTRA_PREPARE_FOR_RENAME as a signal for rename (before we used a DROP signal which is wrong)
      - Initialize error messages early to get better errors when mysqld or an engine fails to start
      - Fix windows bug that query_performance_frequency was not initialized if registry code failed
      - thread_stack -> my_thread_stack_size
      
      
      BitKeeper/etc/ignore:
        added libmysqld/scheduler.cc libmysqld/sql_connect.cc libmysqld/sql_tablespace.cc
      include/Makefile.am:
        Added my_bit.h
      include/m_string.h:
        Added bzero_if_purify() to simplify code
      include/my_base.h:
        Reserve options for the future
        Added HA_OPTION_NULL_FIELDS, HA_OPTION_PAGE_CHECKSUM, HA_CREATE_PAGE_CHECKSUM
        Added new error message HA_ERR_NEW_FILE
        Added optional new row type BLOCK_RECORD
        Renamed HA_EXTRA_PREPARE_FOR_DELETE to HA_EXTRA_PREPARE_FOR_DROP
        Added HA_EXTRA_PREARE_FOR_RENAME to inform handler we will do a rename
        (Added define to make things compatible until 6.0)
        Moved invalidator_by_filename form myisam.h
      include/my_dbug.h:
        Poirtablity fix
      include/my_global.h:
        Added helper macros STATIC_INLINE and MY_ERRPTR
        Added NEED_EXPLICIT_SYNC_DIR
      include/my_handler.h:
        Added missing casts
        Moved some constants and macros out from myisam.h to make these generally available
        Renamed mi_compare_text() to ha_compare_text() as this function is not myisam specific
        Renamed mi_portable_sizeof_char_ptr to portable_sizeof_char_ptr
        Added registering of handler messages for better error reporting during startup
      include/my_sys.h:
        Added my_sync_dir() and my_sync_dir_by_file()
        More comments
        Some indentation fixes
        Moved bit functions to my_bit.h
        Added prototype for crc32()
      include/myisam.h:
        Moved things from here to my_handler.h to make them more accessable
      libmysql/Makefile.shared:
        Added my_sync
      mysys/array.c:
        Fixed indentation and spelling errors
        Split set_dynamic() to two functions
        Added allocate_dynamic() as a new visiable function
        (no new code, only refactoring)
      mysys/mf_iocache.c:
        More DBUG
      mysys/mf_keycache.c:
        More explicite ASSERT
        Removed some casts
        Fixed indentation
      mysys/mf_tempfile.c:
        Fixed bug with possible dangling file descriptor
      mysys/my_atomic.c:
        Use compile time asserts instead of run time
      mysys/my_bit.c:
        Make most bit functions inline
      mysys/my_bitmap.c:
        Added my_bit.h
      mysys/my_compress.c:
        Fixed indentation
      mysys/my_create.c:
        Added my_sync_by_dir()
      mysys/my_delete.c:
        Added my_sync_by_dir()
      mysys/my_error.c:
        init_glob_errs() is now done in my_init()
      mysys/my_handler.c:
        mi_compare_text() -> ha_compare_text() as this is not MyISAM specific
        Added functions to initialize handler error messages
        Fixed indentation
        More clear usage of include files
      mysys/my_init.c:
        Added my_thread_stack_size to be used by other programs
        Ensure that global error messages are always initialized
        Fix windows bug that query_performance_frequency was not initialized if registry code failed
      mysys/my_open.c:
        More comments
        Removed duplicate code
      mysys/my_pread.c:
        Ensure that my_errno is set even if errno is 0
      mysys/my_realloc.c:
        Added comment
      mysys/my_rename.c:
        Added syncing of directories
      mysys/my_symlink.c:
        Added my_sync_by_dir()
      mysys/my_sync.c:
        Added my_sync_dir()
         
        On recent Mac OS X, fcntl(F_FULLFSYNC) is recommended over fsync()
        (see "man fsync" on Mac OS X 10.3).
        my_sync_dir(): to sync a directory after a file creation/deletion/
        renaming; can be called directly or via MY_SYNC_DIR in my_create/
        my_delete/my_rename(). No-op except on Linux (see "man fsync" on Linux).
        my_sync_dir_from_file(): same as above, just more practical when the
        caller has a file name but no directory name ready.
        Should the #warning even be a #error? I mean do we want to release
        binaries which don't guarantee any durability?
      mysys/safemalloc.c:
        Added sf_malloc_report_allocated() (Debugging aid)
      sql/gen_lex_hash.cc:
        Remove inline for big function
      sql/ha_partition.cc:
        HA_EXTRA_PREPARE_FOR_DELETE -> HA_EXTRA_PREPARE_FOR_DROP
        prepare_for_delete -> prepare_for_rename() as this is the the time this function is called
      sql/ha_partition.h:
        prepare_for_delete -> prepare_for_rename() as this is the the time this function is called
      sql/handler.cc:
        ha_init_errors() is now called at startup before plugins
        This allows us to get better error messages
      sql/handler.h:
        Reserve enum value for Maria
        Add future proof enum for page checksums
      sql/item_func.cc:
        Include my_bit.h
      sql/lex.h:
        Added future proof CREATE table options
      sql/log.cc:
        Added comment
      sql/mysql_priv.h:
        thread_stack moved to mysys
      sql/mysqld.cc:
        thread_stack moved to mysys
        thread_stack -> my_thread_stack_size
        Initialize myisam key caches before plugins starts
        Initialize error to allow storage engine to give better error messages if init failes.
        Fixed indentation
        Group all MyISAM options together
        Added new status variable 'Opened_table_definitions' to allow one to monitor if table definition cache is too small
        Clarified some option help messages
      sql/opt_range.cc:
        Removed wrong usage of SAFE_MODE (this disabled key usage for UPDATES, which was never the intention)
        Removed print if total cost in a place where it didn't have any usable value
      sql/set_var.cc:
        thread_stack -> my_thread_stack
      sql/sql_class.cc:
        Intialize transaction object properly
      sql/sql_parse.cc:
        thread_stack -> my_thread_stack
      sql/sql_select.cc:
        Include my_bit.h
        mi_portable_sizeof_char_ptr -> portable_sizeof_char_ptr
      sql/sql_show.cc:
        Simplify handling of ha_choice variables
        Added future safe PAGE_CHECKSUM option
        Addid missing 'transactional=#' in information schema
      sql/sql_table.cc:
        HA_EXTRA_PREPARE_FOR_DELETE -> HA_EXTRA_FORCE_REOPEN when doing reopen
        HA_EXTRA_PREPARE_FOR_DELETE -> HA_EXTRA_PREPARE_FOR_RENAME when doing rename
        Removed not needed initialization
      sql/sql_test.cc:
        thread_stack -> my_thread_stack
      sql/sql_yacc.yy:
        Simplify handling of ha_choice variables
        Added future proof create table options TABLE_CHECKSUM=# & PAGE_CHECKSUM=#
      sql/table.cc:
        Save page_checksum in .frm
      sql/table.h:
        Added variable to hold create table option PAGE_CHECKSUM
      sql/unireg.cc:
        Added syncing of directories
      storage/myisam/ft_boolean_search.c:
        mi_compare_text() -> ha_compare_text()
      storage/myisam/ft_eval.c:
        mi_compare_text() -> ha_compare_text()
      storage/myisam/ft_nlq_search.c:
        mi_compare_text() -> ha_compare_text()
      storage/myisam/ft_parser.c:
        mi_compare_text() -> ha_compare_text()
      storage/myisam/ft_stopwords.c:
        mi_compare_text() -> ha_compare_text()
      storage/myisam/ft_test1.c:
        mi_portable_sizeof_char_ptr -> portable_sizeof_char_ptr
      storage/myisam/ft_update.c:
        mi_compare_text() -> ha_compare_text()
      storage/myisam/ha_myisam.cc:
        Include my_bit.h
      storage/myisam/mi_check.c:
        MI_MAX_POSSIBLE_KEY_BUFF -> HA_MAX_POSSIBLE_KEY_BUFF
        mi_compare_text() -> ha_compare_text()
        Added BLOCK_RECORD to avoid compiler warnings
      storage/myisam/mi_checksum.c:
        mi_portable_sizeof_char_ptr -> portable_sizeof_char_ptr
      storage/myisam/mi_create.c:
        MI_MAX_POSSIBLE_KEY -> HA_MAX_POSSIBLE_KEY
        MI_MAX_KEY_BLOCK_SIZE -> HA_MAX_KEY_BLOCK_SIZE
        mi_portable_sizeof_char_ptr -> portable_sizeof_char_ptr
      storage/myisam/mi_dynrec.c:
        mi_portable_sizeof_char_ptr -> portable_sizeof_char_ptr
      storage/myisam/mi_extra.c:
        HA_EXTRA_PREPARE_FOR_DELETE -> HA_EXTRA_PREPARE_FOR_DROP
      storage/myisam/mi_open.c:
        MI_MAX_POSSIBLE_KEY -> HA_MAX_POSSIBLE_KEY
        mi_portable_sizeof_char_ptr -> portable_sizeof_char_ptr
      storage/myisam/mi_packrec.c:
        mi_portable_sizeof_char_ptr -> portable_sizeof_char_ptr
      storage/myisam/mi_range.c:
        mi_compare_text -> ha_compare_text
      storage/myisam/mi_test1.c:
        mi_portable_sizeof_char_ptr -> portable_sizeof_char_ptr
      storage/myisam/mi_test2.c:
        mi_portable_sizeof_char_ptr -> portable_sizeof_char_ptr
      storage/myisam/mi_unique.c:
        mi_compare_text() -> ha_compare_text()
      storage/myisam/mi_write.c:
        mi_compare_text() -> ha_compare_text()
      storage/myisam/myisamchk.c:
        Include my_bit.h
      storage/myisam/myisamdef.h:
        Moved store_key_length_inc to handler.h
      storage/myisam/myisampack.c:
        mi_portable_sizeof_char_ptr -> portable_sizeof_char_ptr
      storage/myisam/sp_test.c:
        mi_portable_sizeof_char_ptr -> portable_sizeof_char_ptr
      storage/myisammrg/ha_myisammrg.cc:
        HA_EXTRA_PREPARE_FOR_DELETE -> HA_EXTRA_PREPARE_FOR_DROP
      include/my_bit.h:
        New BitKeeper file ``include/my_bit.h''
      fb84f573
  12. 26 Sep, 2007 1 commit
    • unknown's avatar
      merge of the fix for bug 27802 & 27216 to 5.1-opt · bc25c6ca
      unknown authored
      mysql-test/r/view.result:
        merge of the fix for bug 27802 to 5.1
      sql/item_cmpfunc.h:
        merge of the fix for bug 27216 to 5.1
      sql/sql_insert.cc:
        merge of the fix for bug 27216 to 5.1
      sql/sql_lex.h:
        merge of the fix for bug 27802 to 5.1
      sql/sql_select.cc:
        merge of the fix for bug 27802 to 5.1
      sql/table.h:
        merge of the fix for bug 27802 to 5.1
      bc25c6ca
  13. 24 Sep, 2007 1 commit
    • unknown's avatar
      Bug #28702: VIEWs defined with USE/FORCE KEY ignore that request · ca448acc
      unknown authored
      When storing the VIEW the CREATE VIEW command is reconstructed 
      from the parse tree. While constructing the command string
      the index hints specified should also be printed.
      Fixed by adding code to print the index hints when printing a 
      table in the FROM clause.
      
      
      mysql-test/r/view.result:
        Bug #28702: test case
      mysql-test/t/view.test:
        Bug #28702: test case
      sql/sql_select.cc:
        Bug #28702: preserve index hints in a VIEW definition.
      sql/table.h:
        Bug #28702: preserve index hints in a VIEW definition.
      ca448acc
  14. 15 Aug, 2007 1 commit
    • unknown's avatar
      Fix doxygen warnings. · c514373c
      unknown authored
      client/mysqldump.c:
        Fix doxygen warnings
      mysys/test_charset.c:
        Fix doxygen warnings
      sql/event_db_repository.cc:
        Fix doxygen warnings
      sql/events.cc:
        Fix doxygen warnings
      sql/events.h:
        Fix doxygen warnings
      sql/item_create.cc:
        Fix doxygen warnings, style.
      sql/item_create.h:
        Fix coding style.
      sql/item_subselect.cc:
        Fix doxygen warnings
      sql/lock.cc:
        Fix doxygen warnings
      sql/sp.cc:
        Fix doxygen warnings
      sql/sp_head.h:
        Fix doxygen warnings
      sql/sql_analyse.cc:
        Fix doxygen warnings
      sql/sql_analyse.h:
        Fix doxygen warnings
      sql/sql_base.cc:
        Fix doxygen warnings
      sql/sql_db.cc:
        Fix doxygen warnings
      sql/sql_lex.cc:
        Fix doxygen warnings
      sql/sql_lex.h:
        Fix doxygen warnings
      sql/sql_parse.cc:
        Fix doxygen warnings
      sql/sql_plugin.cc:
        Fix doxygen warnings
      sql/sql_prepare.cc:
        Fix doxygen warnings
      sql/sql_show.cc:
        Fix doxygen warnings
      sql/sql_trigger.cc:
        Fix doxygen warnings
      sql/sql_update.cc:
        Fix doxygen warnings
      sql/table.h:
        Fix doxygen warnings
      c514373c
  15. 13 Aug, 2007 1 commit
    • unknown's avatar
      Fixed a lot of compiler warnings and errors detected by Forte C++ on Solaris · 09a53f28
      unknown authored
      Faster thr_alarm()
      Added 'Opened_files' status variable to track calls to my_open()
      Don't give warnings when running mysql_install_db
      Added option --source-install to mysql_install_db
      
      I had to do the following renames() as used polymorphism didn't work with Forte compiler on 64 bit systems
      index_read()      -> index_read_map()
      index_read_idx()  -> index_read_idx_map()
      index_read_last() -> index_read_last_map()
      
      
      BUILD/compile-solaris-sparc-forte:
        Updated script to current Solaris installations
        Now we compile by default for 64 bits
      client/mysql.cc:
        Declare functions sent to C code with extern "C" to avoid compiler warnings (on Forte)
      client/mysql_upgrade.c:
        Fixed compiler warning (on Forte)
      client/mysqladmin.cc:
        Declare functions sent to C code with extern "C" to avoid compiler warnings (on Forte)
      client/mysqlcheck.c:
        Fixed compiler warning (on Forte)
      client/mysqldump.c:
        Fixed compiler warning (on Forte)
      client/mysqlslap.c:
        Fixed compiler warning (on Forte)
      client/mysqltest.c:
        Fixed compiler warning (on Forte)
      client/sql_string.cc:
        Avoid compiler warnings when using C function pointers in C++
      configure.in:
        Added detection of mtmalloc and ieeefp.h
      extra/replace.c:
        Fixed compiler warning (on Forte)
      include/m_ctype.h:
        Added some typedef's to make it easy to use C function pointers in C++
      include/my_sys.h:
        Added my_file_total_opened (counter for calls to my_open())
      include/myisam.h:
        Fixed compiler warning (on Forte)
      libmysql/libmysql.c:
        Fixed compiler warning (on Forte) by adding casts and change types
      libmysql/manager.c:
        Fixed compiler warning (on Forte) by adding casts and change types
      mysql-test/r/ctype_cp932_binlog_stm.result:
        Updated positions
        (Needed because we didn't before correctly restore collation_database after running stored procedure
      mysys/my_fopen.c:
        Count number of opened files
      mysys/my_open.c:
        Count number of opened files
      mysys/my_static.c:
        Count number of opened files
      mysys/thr_alarm.c:
        Optimization to do less alarm() and pthread_sigmask() calls.
        Idea is to remember time for next pending alarm and not reschedule a new alarm if it's after the current one.
        Before we only did this if there was other pending alarms.
        We don't have to use pthread_sigmask() in case of 'USE_ONE_SIGNAL_HAND' as the alarm()
        signal will be blocked for the calling thread anyway and no other thread will have the alarm() signal enabled to call process_alarm()
      regex/regcomp.c:
        Fixed compiler warning (on Forte) by adding casts and change types
      scripts/mysql_install_db.sh:
        Added option --source-install to allow one to create a mysql database from the source tree without installing MySQL
        Don't give (unnecessary) warnings
      server-tools/instance-manager/angel.cc:
        Declare functions sent to C code with extern "C" to avoid compiler warnings (on Forte)
      server-tools/instance-manager/thread_registry.cc:
        Declare functions sent to C code with extern "C" to avoid compiler warnings (on Forte)
      sql/event_db_repository.cc:
        index_read() -> index_read_map()
      sql/event_queue.cc:
        Declare functions sent to C code with extern "C" to avoid compiler warnings (on Forte)
      sql/field.cc:
        Fixed compiler warnings about hidden fields
      sql/ha_partition.cc:
        Fixed compiler warnings about hidden fields
        index_read() -> index_read_map()
      sql/ha_partition.h:
        index_read() -> index_read_map()
      sql/handler.cc:
        Added PAGE option to row types (to prepare for future)
        index_read() -> index_read_map()
      sql/handler.h:
        Added ROW_TYPE_PAGE (for future)
        Added flag to signal if table was to be created transactionally
        I had to do the following renames() as used polymorphism didn't work with Forte compiler on 64 bit systems
        index_read()      -> index_read_map()
        index_read_idx()  -> index_read_idx_map()
        index_read_last() -> index_read_last_map()
      sql/item.cc:
        Fixed indentation
        Renamed local variable to avoid hiding class variable
      sql/item_cmpfunc.cc:
        Renamed local variable to avoid hiding class variable
      sql/item_cmpfunc.h:
        Removed not used variable
      sql/item_func.cc:
        Renamed local variable to avoid hiding class variable
      sql/item_strfunc.cc:
        Moved functions from Item_strfunc.cc
      sql/item_strfunc.h:
        Move functions to item_strfunc.cc
        Use C function pointer type to avoid compiler warnings (with Forte)
      sql/item_subselect.cc:
        index_read() -> index_read_map()
      sql/item_xmlfunc.cc:
        Renamed local variable to avoid hiding class variable
        Declare functions sent to C code with extern "C" to avoid compiler warnings (on Forte)
      sql/key.cc:
        Fixed indentation
      sql/log.cc:
        Renamed local variable to avoid hiding class variable
      sql/log_event.cc:
        Removed call to my_time() when creating class instance of Log_event() as this may have static instances.
        (One can't call my_time() before my_init())
        index_read() -> index_read_map()
        Renamed local variable to avoid hiding class variable
      sql/log_event_old.cc:
        Renamed local variable to avoid hiding class variable
      sql/mysql_priv.h:
        Made all create_backup_ctx() declarations identical.
        This lifted up a bug where wrong create_backup_ctx() was called in some cases.
        Declare functions sent to C code with extern "C" to avoid compiler warnings (on Forte)
      sql/mysqld.cc:
        Declare functions sent to C code with extern "C" to avoid compiler warnings (on Forte)
        Fixed indentation
        Don't call end_thr_alarm() when calling unireg_abort() as unireg_abort() already calls end_thr_alarm()
        Added variable 'Opened_files' (number of calls to my_open() or my_fopen())
        Don't print 'loose' warnings when using --bootstrap (to avoid warnings when running mysql_install_db)
        Fixed compiler warnings
      sql/opt_range.cc:
        index_read() -> index_read_map()
      sql/opt_sum.cc:
        index_read() -> index_read_map()
      sql/partition_info.cc:
        Renamed local variable to avoid hiding class variable
      sql/rpl_filter.cc:
        Declare functions sent to C code with extern "C" to avoid compiler warnings (on Forte)
      sql/set_var.cc:
        Renamed local variable to avoid hiding class variable
        Added 'process_key_cache_t' type to avoid compiler warning (on Forte)
      sql/set_var.h:
        Added 'process_key_cache_t' type to avoid compiler warning (on Forte)
      sql/sp.cc:
        More debugging
        index_read() -> index_read_map()
      sql/sp_cache.cc:
        Declare functions sent to C code with extern "C" to avoid compiler warnings (on Forte)
      sql/sp_head.cc:
        Declare functions sent to C code with extern "C" to avoid compiler warnings (on Forte)
        Moved 'saved_creation_ctx' higher up to be able to free objects allocated by create_backup_ctx()
      sql/sql_acl.cc:
        index_read() -> index_read_map()
      sql/sql_class.cc:
        Renamed local variable to avoid hiding class variable
        Declare functions sent to C code with extern "C" to avoid compiler warnings (on Forte)
      sql/sql_class.h:
        Renamed local variable to avoid hiding class variable
      sql/sql_db.cc:
        Declare functions sent to C code with extern "C" to avoid compiler warnings (on Forte)
      sql/sql_delete.cc:
        Renamed local variable to avoid hiding class variable
      sql/sql_handler.cc:
        index_read() -> index_read_map()
      sql/sql_help.cc:
        index_read() -> index_read_map()
      sql/sql_insert.cc:
        index_read() -> index_read_map()
        Renamed local variable to avoid hiding class variable
      sql/sql_lex.cc:
        Renamed local variable to avoid hiding class variable
      sql/sql_plugin.cc:
        Declare functions sent to C code with extern "C" to avoid compiler warnings (on Forte)
        index_read() -> index_read_map()
        Don't give warnings about not used plugins if we are using --warnings=0
      sql/sql_select.cc:
        index_read() -> index_read_map()
      sql-common/client.c:
        Fixed compiler warning (on Forte)
      sql-common/my_time.c:
        Removed never accessed code
        Fixed compiler warning (on Forte)
      sql/sql_servers.cc:
        index_read() -> index_read_map()
      sql/sql_show.cc:
        Added TRANSACTIONAL to SHOW CREATE
        Fixed ROW_TYPE_PAGE
      sql/sql_string.cc:
        Avoid compiler warnings when using C function pointers in C++
      sql/sql_table.cc:
        Set create_info->transactional if we used TRANSACTIONAL=1
      sql/sql_udf.cc:
        index_read() -> index_read_map()
      sql/sql_yacc.yy:
        Added TRANSACTIONAL=0|1 to CREATE (for future)
        Added row type PAGE (was only partionally handled before)
      sql/strfunc.cc:
        Avoid compiler warnings when using C function pointers in C++
      sql/table.cc:
        More DBUG statements
        Declare all create_backup_ctx() functions identically
        Remember if table was created with TRANSACTIONAL flag or not (future safe)
        Renamed local variable to avoid hiding class variable
      sql/table.h:
        Remember if table was created with TRANSACTIONAL=1
      sql/tztime.cc:
        index_read() -> index_read_map()
      sql-common/pack.c:
        Fixed compiler warning (on Forte)
      storage/archive/archive_reader.c:
        Fixed compiler warning (on Forte)
      storage/archive/azio.c:
        Fixed compiler warning (on Forte)
      storage/blackhole/ha_blackhole.cc:
        index_read() -> index_read_map()
      storage/blackhole/ha_blackhole.h:
        index_read() -> index_read_map()
      storage/csv/ha_tina.cc:
        Declare functions sent to C code with extern "C" to avoid compiler warnings (on Forte)
      storage/example/ha_example.cc:
        index_read() -> index_read_map()
      storage/example/ha_example.h:
        index_read() -> index_read_map()
      storage/heap/ha_heap.cc:
        index_read() -> index_read_map()
      storage/heap/ha_heap.h:
        index_read() -> index_read_map()
      storage/heap/hp_test1.c:
        Fixed compiler warning (on Forte)
      storage/heap/hp_test2.c:
        Fixed compiler warning (on Forte)
      storage/myisam/ft_boolean_search.c:
        Fixed compiler warning (on Forte)
      storage/myisam/ft_nlq_search.c:
        Fixed compiler warning (on Forte)
      storage/myisam/ft_parser.c:
        Fixed compiler warning (on Forte)
      storage/myisam/ft_stopwords.c:
        Fixed compiler warning (on Forte)
      storage/myisam/ha_myisam.cc:
        index_read() -> index_read_map()
      storage/myisam/ha_myisam.h:
        index_read() -> index_read_map()
      storage/myisam/mi_check.c:
        Fixed compiler warning (on Forte)
      storage/myisam/mi_delete.c:
        Fixed compiler warning (on Forte)
      storage/myisam/mi_dynrec.c:
        Fixed compiler warning (on Forte)
      storage/myisam/mi_extra.c:
        Fixed compiler warning (on Forte)
      storage/myisam/mi_key.c:
        Fixed compiler warning (on Forte)
      storage/myisam/mi_keycache.c:
        Fixed compiler warning (on Forte)
      storage/myisam/mi_locking.c:
        Fixed compiler warning (on Forte)
      storage/myisam/mi_log.c:
        Fixed compiler warning (on Forte)
      storage/myisam/mi_open.c:
        Fixed compiler warning (on Forte)
      storage/myisam/mi_packrec.c:
        Fixed compiler warning (on Forte)
      storage/myisam/mi_page.c:
        Fixed compiler warning (on Forte)
      storage/myisam/mi_rkey.c:
        Added comment
      storage/myisam/mi_search.c:
        Fixed compiler warning (on Forte)
      storage/myisam/mi_statrec.c:
        Fixed compiler warning (on Forte)
      storage/myisam/mi_test1.c:
        Fixed compiler warning (on Forte)
      storage/myisam/mi_test2.c:
        Fixed compiler warning (on Forte)
      storage/myisam/mi_test3.c:
        Fixed compiler warning (on Forte)
      storage/myisam/mi_update.c:
        Fixed compiler warning (on Forte)
      storage/myisam/mi_write.c:
        Fixed compiler warning (on Forte)
      storage/myisam/myisamdef.h:
        Fixed that file_read/file_write returns type size_t
        Changed some functions to use uchar * as argument/return value instead of char*
        This fixed some compiler warnings on Forte
      storage/myisam/myisamlog.c:
        Fixed compiler warning (on Forte)
      storage/myisam/myisampack.c:
        Fixed compiler warning (on Forte)
      storage/myisam/rt_test.c:
        Fixed compiler warning (on Forte)
      storage/myisam/sort.c:
        Fixed compiler warning (on Forte) by adding casts or changing variables to uchar*
      storage/myisam/sp_test.c:
        Fixed compiler warning (on Forte) by adding casts or changing variables to uchar*
      storage/myisammrg/ha_myisammrg.cc:
        index_read() -> index_read_map()
      storage/myisammrg/ha_myisammrg.h:
        index_read() -> index_read_map()
      storage/myisammrg/myrg_create.c:
        Fixed compiler warning (on Forte) by adding casts or changing variable types
      storage/ndb/src/kernel/blocks/dbtup/DbtupExecQuery.cpp:
        Tdummy -> align  (as in other part of cluster code)
      storage/ndb/src/kernel/vm/DynArr256.cpp:
        Removed not used variable
      storage/ndb/src/ndbapi/Ndb.cpp:
        Removed not used variable
      strings/strtod.c:
        Include ieeefp.h to avoid compiler warning
      tests/bug25714.c:
        Fixed compiler warning
      tests/mysql_client_test.c:
        Remove not used variable
        Fixed indentation
        Removed never reached code
        Fixed compiler warning (on Forte) by adding casts or changing variable types
      vio/viosocket.c:
        Fixed compiler warning (on Forte) by adding casts or changing variable types
      09a53f28
  16. 02 Aug, 2007 1 commit
    • unknown's avatar
      WL#3732 Information schema optimization · 82d28fad
      unknown authored
      client/mysqldump.c:
        table type compare is changed to case insensitive
      mysql-test/r/information_schema.result:
        test result
      mysql-test/r/information_schema_db.result:
        result fix
      mysql-test/suite/ndb/r/ndb_alter_table.result:
        result fix
      mysql-test/suite/ndb/r/ndb_temporary.result:
        result fix
      mysql-test/t/information_schema.test:
        test case
      sql/ha_ndbcluster.cc:
        char* variables are changed to LEX_STRING
      sql/ha_ndbcluster.h:
        char* variables are changed to LEX_STRING
      sql/ha_ndbcluster_binlog.cc:
        char* variables are changed to LEX_STRING
      sql/handler.cc:
        char* variables are changed to LEX_STRING
      sql/handler.h:
        char* variables are changed to LEX_STRING
      sql/sql_base.cc:
        Modified functions which are used during open table process
        according to table opening method and requested_object.
      sql/sql_select.cc:
        Add support for I_S tables into select_describe() function
      sql/sql_show.cc:
        1. Added initialization of 'open_method' to 'st_field_info' structs.
        2. Added initialization of 'i_s_requested_object' to 'ST_SCHEMA_TABLE' structs.
        3. New function which calculates database name and table name values 
           from 'where' condition if it's possible
           void get_lookup_field_values(THD *thd, COND *cond, TABLE_LIST *table,
                                        LOOKUP_FIELD_VALUES *lookup_field_vals);
        4. New function which set table open method
           setup_table_open_method(TABLE_LIST *tables,
                                   ST_SCHEMA_TABLE *schema_table,
                                   enum enum_schema_tables schema_table_idx)
        5. New function
           int make_db_list(THD *thd, List<LEX_STRING> *files,
                            LOOKUP_FIELD_VALUES *lookup_field_vals,
                            bool *with_i_schema)
        6. New function
           int make_table_name_list(THD *thd, List<LEX_STRING> *files, LEX *lex,
                                    LOOKUP_FIELD_VALUES *lookup_field_vals,
                                    bool with_i_schema, LEX_STRING *db_name)
        7. Modified 'get_all_tables' function according to new schema(see wl#3732).
      sql/sql_show.h:
        char* variables are changed to LEX_STRING
      sql/table.cc:
        Modified functions which are used during open table process
        according to table opening method and requested_object.
      sql/table.h:
        1. added new constants(open_method)
        #define SKIP_OPEN_TABLE 0
        #define OPEN_FRM_ONLY   1
        #define OPEN_FULL_TABLE 2
            
        2. Added new field 'open_method' into struct st_field_info;
           uint open_method;
            
        3. Added new field into ST_SCHEMA_TABLE struct
           uint i_s_requested_object;  /* the object we need to open(TABLE | VIEW) */.
        4. Added new field to TABLE_LIST struct.
           uint i_s_requested_object;
           This field is set from ST_SCHEMA_TABLE.i_s_requested_object
           for processed table before opening.
            
        5. Added new fields to TABLE_LIST struct, used for 'explain select' for I_S table
           bool has_db_lookup_value;
           bool has_table_lookup_value;
           uint table_open_method;
      sql/unireg.h:
        added new constants
      82d28fad
  17. 27 Jul, 2007 2 commits
    • unknown's avatar
      Bug #29929 LOCK TABLES does not pre-lock tables used in triggers of the locked tables · 07955aea
      unknown authored
      When a table was explicitly locked with LOCK TABLES no associated
      tables from any related trigger on the subject table were locked.
      As a result of this the user could experience unexpected locking
      behavior and statement failures similar to "failed: 1100: Table'xx'
      was not locked with LOCK TABLES".
      
      This patch fixes this problem by making sure triggers are
      pre-loaded on any statement if the subject table was explicitly
      locked with LOCK TABLES.
      
      
      mysql-test/r/sp-prelocking.result:
        Added test case
      mysql-test/t/sp-prelocking.test:
        Added test case
      sql/sql_lex.cc:
        - Moved some conditional logic out of the table iteration.
        - Added event map values for LOCK TABLE command.
      sql/table.cc:
        - Refactored set_trg_event_tpye into the two simpler functions set_trg_event_map
          and set_trg_event_map as methods for manipulating the table event map.
          The original function was only called from st_lex::set_trg_event_type_for_tables
          so it was possible to move the event map creation logic to this function as
          a loop optimization.
      sql/table.h:
        - Refactored set_trg_event_tpye into the two simpler functions set_trg_event_map
          and set_trg_event_map as methods for manipulating the table event map.
          The original function was only called from st_lex::set_trg_event_type_for_tables
          so it was possible to move the event map creation logic to this function as
          a loop optimization.
      07955aea
    • unknown's avatar
      WL#3984 (Revise locking of mysql.general_log and mysql.slow_log) · 4462578a
      unknown authored
      Bug#25422 (Hang with log tables)
      Bug 17876 (Truncating mysql.slow_log in a SP after using cursor locks the
                thread)
      Bug 23044 (Warnings on flush of a log table)
      Bug 29129 (Resetting general_log while the GLOBAL READ LOCK is set causes
                 a deadlock)
      
      Prior to this fix, the server would hang when performing concurrent
      ALTER TABLE or TRUNCATE TABLE statements against the LOG TABLES,
      which are mysql.general_log and mysql.slow_log.
      
      The root cause traces to the following code:
      in sql_base.cc, open_table()
        if (table->in_use != thd)
        {
          /* wait_for_condition will unlock LOCK_open for us */
          wait_for_condition(thd, &LOCK_open, &COND_refresh);
        }
      The problem with this code is that the current implementation of the
      LOGGER creates 'fake' THD objects, like
      - Log_to_csv_event_handler::general_log_thd
      - Log_to_csv_event_handler::slow_log_thd
      which are not associated to a real thread running in the server,
      so that waiting for these non-existing threads to release table locks
      cause the dead lock.
      
      In general, the design of Log_to_csv_event_handler does not fit into the
      general architecture of the server, so that the concept of general_log_thd
      and slow_log_thd has to be abandoned:
      - this implementation does not work with table locking
      - it will not work with commands like SHOW PROCESSLIST
      - having the log tables always opened does not integrate well with DDL
      operations / FLUSH TABLES / SET GLOBAL READ_ONLY
      
      With this patch, the fundamental design of the LOGGER has been changed to:
      - always open and close a log table when writing a log
      - remove totally the usage of fake THD objects
      - clarify how locking of log tables is implemented in general.
      
      See WL#3984 for details related to the new locking design.
      
      Additional changes (misc bugs exposed and fixed):
      
      1)
      
      mysqldump which would ignore some tables in dump_all_tables_in_db(),
       but forget to ignore the same in dump_all_views_in_db().
      
      2)
      
      mysqldump would also issue an empty "LOCK TABLE" command when all the tables
      to lock are to be ignored (numrows == 0), instead of not issuing the query.
      
      3)
      
      Internal errors handlers could intercept errors but not warnings
      (see sql_error.cc).
      
      4)
      
      Implementing a nested call to open tables, for the performance schema tables,
      exposed an existing bug in remove_table_from_cache(), which would perform:
        in_use->some_tables_deleted=1;
      against another thread, without any consideration about thread locking.
      This call inside remove_table_from_cache() was not required anyway,
      since calling mysql_lock_abort() takes care of aborting -- cleanly -- threads
      that might hold a lock on a table.
      This line (in_use->some_tables_deleted=1) has been removed.
      
      
      sql/handler.cc:
        Moved logic for system / log tables in the SQL layer.
      sql/handler.h:
        Moved logic for system / log tables in the SQL layer.
      sql/lock.cc:
        Revised locking of log tables
      sql/log.cc:
        Major cleanup: changed how log tables are locked / written to.
      sql/log.h:
        Major cleanup: changed how log tables are locked / written to.
      sql/mysql_priv.h:
        performance schema helpers
      sql/slave.cc:
        open_ltable() lock flags
      sql/sp.cc:
        open_ltable() lock flags
      sql/sql_acl.cc:
        open_ltable() lock flags
      sql/sql_class.h:
        performance schema helpers
      sql/sql_delete.cc:
        log tables cleanup in TRUNCATE
      sql/sql_error.cc:
        Internal handlers can also intercept warnings
      sql/sql_insert.cc:
        open_ltable() lock flags
      sql/sql_parse.cc:
        performance schema helpers
      sql/sql_plugin.cc:
        open_ltable() lock flags
      sql/sql_rename.cc:
        log tables cleanup in RENAME
      sql/sql_servers.cc:
        open_ltable() lock flags
      sql/sql_show.cc:
        Move INFORMATION_SCHEMA_NAME to table.cc
      sql/sql_table.cc:
        log tables cleanup (admin operations, ALTER TABLE)
      sql/sql_udf.cc:
        open_ltable() lock flags
      sql/table.cc:
        Implemented TABLE_CATEGORY.
      sql/share/errmsg.txt:
        Changed the wording and name of ER_CANT_READ_LOCK_LOG_TABLE
      sql/table.h:
        Implemented TABLE_CATEGORY.
      storage/csv/ha_tina.cc:
        Moved logic for system / log tables in the SQL layer.
      storage/csv/ha_tina.h:
        Moved logic for system / log tables in the SQL layer.
      storage/myisam/ha_myisam.cc:
        Moved logic for system / log tables in the SQL layer.
      storage/myisam/ha_myisam.h:
        Moved logic for system / log tables in the SQL layer.
      client/mysqldump.c:
        Don't lock tables in the ignore list.
        Don't issue empty LOCK TABLES queries.
      sql/sql_base.cc:
        log tables cleanup
        performance schema helpers
      mysql-test/r/ps.result:
        Adjust test results
      mysql-test/r/show_check.result:
        Adjust test results
      mysql-test/r/status.result:
        Adjust test results
      mysql-test/t/log_state.test:
        Added tests for Bug#29129
      mysql-test/t/ps.test:
        Make the test output deterministic
      mysql-test/t/show_check.test:
        Make the test output deterministic
      mysql-test/r/log_state.result:
        Changed the default location of the log output to LOG_FILE,
        for backward compatibility with MySQL 5.0
        ---
        Adjust test results
      mysql-test/r/log_tables.result:
        cleanup for -ps-protocol
      mysql-test/t/log_tables.test:
        cleanup for -ps-protocol
      sql/set_var.cc:
        Changed the default location of the log output to LOG_FILE,
        for backward compatibility with MySQL 5.0
        ---
        log tables cleanup
      4462578a
  18. 23 Jul, 2007 1 commit
  19. 16 Jul, 2007 1 commit
    • unknown's avatar
      Post-merge fixes (merge from the main). · bc642e11
      unknown authored
      mysql-test/r/innodb_mysql.result:
        Update test results (merge from the main tree).
      mysql-test/r/query_cache.result:
        Update test results (merge from the main tree).
      mysql-test/r/sp.result:
        Update test results (merge from the main tree).
      mysql-test/t/query_cache.test:
        Use --echo End of to simplify future merges.
      sql/handler.h:
        st_table_list -> TABLE_LIST
      sql/item_create.cc:
        A post-merge fix (this code is in sql_yacc.yy in 5.0)
      sql/rpl_utility.h:
        st_table_list -> TABLE_LIST
      sql/sp.cc:
        A post-merge fix.
      sql/sp_head.cc:
        In 5.1 memdup_root returns void*.
      sql/sql_show.cc:
        st_table_list -> TABLE_LIST
      sql/sql_show.h:
        st_table_list -> TABLE_LIST
      sql/sql_yacc.yy:
        A post-merge fix.
      sql/table.cc:
        st_table_list -> TABLE_LIST
      sql/table.h:
        st_table_list -> TABLE_LIST
      bc642e11
  20. 12 Jul, 2007 1 commit
    • unknown's avatar
      A fix and a test case for Bug#26141 mixing table types in trigger · 9dc3088f
      unknown authored
      causes full table lock on innodb table.
      Also fixes Bug#28502 Triggers that update another innodb table 
      will block on X lock unnecessarily (duplciate).
      Code review fixes.
      
      Both bugs' synopses are misleading: InnoDB table is
      not X locked. The statements, however, cannot proceed concurrently, 
      but this happens due to lock conflicts for tables used in triggers,
      not for the InnoDB table. 
      
      If a user had an InnoDB table, and two triggers, AFTER UPDATE and 
      AFTER INSERT, competing for different resources (e.g. two distinct
      MyISAM tables), then these two triggers would not be able to execute
      concurrently. Moreover, INSERTS/UPDATES of the InnoDB table would
      not be able to run concurrently. 
      The problem had other side-effects (see respective bug reports).
      
      This behavior was a consequence of a shortcoming of the pre-locking
      algorithm, which would not distinguish between different DML operations
      (e.g. INSERT and DELETE) and pre-lock all the tables
      that are used by any trigger defined on the subject table.
      
      The idea of the fix is to extend the pre-locking algorithm to keep track,
      for each table, what DML operation it is used for and not
      load triggers that are known to never be fired.
      
      
      mysql-test/r/trigger-trans.result:
        Update results (Bug#26141)
      mysql-test/r/trigger.result:
        Update results (Bug#28502)
      mysql-test/t/trigger-trans.test:
        Add a test case for Bug#26141 mixing table types in trigger causes 
        full table lock on innodb table.
      mysql-test/t/trigger.test:
        Add a test case for Bug#28502 Triggers that update another innodb 
        table will block echo on X lock unnecessarily. Add more test 
        coverage for triggers.
      sql/item.h:
        enum trg_event_type is needed in table.h
      sql/sp.cc:
        Take into account table_list->trg_event_map when determining
        what tables to pre-lock. 
        
        After this change, if we attempt to fire a 
        trigger for which we had not pre-locked any tables, error
        'Table was not locked with LOCK TABLES' will be printed.
        This, however, should never happen, provided the pre-locking
        algorithm has no programming bugs.
        
        Previously a trigger key in the sroutines hash was based on the name 
        of the table the trigger belongs to. This was possible because we would
        always add to the pre-locking list all the triggers defined for a table when
        handling this table.
        Now the key is based on the name of the trigger, owing
        to the fact that a trigger name must be unique in the database it
        belongs to.
      sql/sp_head.cc:
        Generate sroutines hash key in init_spname(). This is a convenient
        place since there we have all the necessary information and can
        avoid an extra alloc.
        
        Maintain and merge trg_event_map when adding and merging elements
        of the pre-locking list.
      sql/sp_head.h:
        Add ,m_sroutines_key member, used when inserting the sphead for a
        trigger into the cache of routines used by a statement.
        Previously the key was based on the table name the trigger belonged
        to, since for a given table we would add to the sroutines list
        all the triggers defined on it.
      sql/sql_lex.cc:
        Introduce a new lex step: set_trg_event_type_for_tables().
        It is called when we have finished parsing but before opening
        and locking tables. Now this step is used to evaluate for each
        TABLE_LIST instance which INSERT/UPDATE/DELETE operation, if any,
        it is used in.
        In future this method could be extended to aggregate other information
        that is hard to aggregate during parsing.
      sql/sql_lex.h:
        Add declaration for set_trg_event_type_for_tables().
      sql/sql_parse.cc:
        Call set_trg_event_type_for_tables() after MYSQLparse(). Remove tabs.
      sql/sql_prepare.cc:
        Call set_trg_event_type_for_tables() after  MYSQLparse().
      sql/sql_trigger.cc:
        Call set_trg_event_type_for_tables() after MYSQLparse().
      sql/sql_trigger.h:
        Remove an obsolete member.
      sql/sql_view.cc:
        Call set_trg_event_type_for_tables() after MYSQLparse().
      sql/sql_yacc.yy:
        Move assignment of sp_head::m_type before calling sp_head::init_spname(), 
        one is now used inside another.
      sql/table.cc:
        Implement TABLE_LIST::set_trg_event_map() - a method that calculates
        wh triggers may be fired on this table when executing a statement.
      sql/table.h:
        Add missing declarations.
        Move declaration of trg_event_type from item.h (it will be needed for 
        trg_event_map bitmap when we start using Bitmap template instead
        of uint8).
      9dc3088f
  21. 06 Jul, 2007 1 commit
    • unknown's avatar
      Remove typedef st_table_list TABLE_LIST and always use name 'TABLE_LIST'. · 360a5ebc
      unknown authored
      The need arose when working on Bug 26141, where it became
      necessary to replace TABLE_LIST with its forward declaration in a few
      headers, and this involved a lot of s/TABLE_LIST/st_table_list/.
      Although other workarounds exist, this patch is in line
      with our general strategy of moving away from typedef-ed names.
      Sometime in future we might also rename TABLE_LIST to follow the
      coding style, but this is a huge change.
      
      
      sql/item.cc:
        st_table_list -> TABLE_LIST
      sql/item.h:
        st_table_list -> TABLE_LIST
      sql/mysql_priv.h:
        st_table_list -> TABLE_LIST
      sql/sql_base.cc:
        st_table_list -> TABLE_LIST
      sql/sql_lex.cc:
        st_table_list -> TABLE_LIST
      sql/sql_lex.h:
        st_table_list -> TABLE_LIST
      sql/sql_select.cc:
        st_table_list -> TABLE_LIST
      sql/sql_show.cc:
        st_table_list -> TABLE_LIST
      sql/sql_udf.h:
        Was not needed.
      sql/table.cc:
        st_table_list -> TABLE_LIST
      sql/table.h:
        st_table_list -> TABLE_LIST
      360a5ebc
  22. 02 Jul, 2007 1 commit
    • unknown's avatar
      Unify profiling SHOW code and INFORMATION_SCHEMA code for · 358b942b
      unknown authored
      profiling.  Also,
      
      Bug#26938: profiling client hang if used before enabled
      
      In the SHOW command, not sending header data because we had no 
      rows to send was a protocol violation.  Porting the SHOW PROFILE
      command to use the Information Schema table avoids that problem.
      
      
      mysql-test/r/profiling.result:
        Add headers of pre-profile SHOW test.
      mysql-test/t/profiling.test:
        Verify that the protocol isn't violated if we ask for profiling 
        info before profiling has recorded anything.
      sql/sql_parse.cc:
        Remove SQLCOM_SHOW_PROFILE and add a I_S schema table entry.
      sql/sql_profile.cc:
        Add SHOW column-names and a new function that takes profile options
        set in the parser and packs a list of selected fields from the 
        I_S table implementation.
      sql/sql_profile.h:
        Remove unused functions and add a new function.
      sql/sql_show.cc:
        Add a pointer to the function that selects fields from I_S table
        for SHOW command.
      sql/sql_yacc.yy:
        Prepare an I_S table for SHOW PROFILE.
      sql/table.h:
        Rename to match the intention.
      358b942b
  23. 28 Jun, 2007 1 commit
    • unknown's avatar
      Patch for the following bugs: · 405f82d3
      unknown authored
        - BUG#11986: Stored routines and triggers can fail if the code
          has a non-ascii symbol
        - BUG#16291: mysqldump corrupts string-constants with non-ascii-chars
        - BUG#19443: INFORMATION_SCHEMA does not support charsets properly
        - BUG#21249: Character set of SP-var can be ignored
        - BUG#25212: Character set of string constant is ignored (stored routines)
        - BUG#25221: Character set of string constant is ignored (triggers)
      
      There were a few general problems that caused these bugs:
      1. Character set information of the original (definition) query for views,
         triggers, stored routines and events was lost.
      2. mysqldump output query in client character set, which can be
         inappropriate to encode definition-query.
      3. INFORMATION_SCHEMA used strings with mixed encodings to display object
         definition;
      
      1. No query-definition-character set.
      
      In order to compile query into execution code, some extra data (such as
      environment variables or the database character set) is used. The problem
      here was that this context was not preserved. So, on the next load it can
      differ from the original one, thus the result will be different.
      
      The context contains the following data:
        - client character set;
        - connection collation (character set and collation);
        - collation of the owner database;
      
      The fix is to store this context and use it each time we parse (compile)
      and execute the object (stored routine, trigger, ...).
      
      2. Wrong mysqldump-output.
      
      The original query can contain several encodings (by means of character set
      introducers). The problem here was that we tried to convert original query
      to the mysqldump-client character set.
      
      Moreover, we stored queries in different character sets for different
      objects (views, for one, used UTF8, triggers used original character set).
      
      The solution is
        - to store definition queries in the original character set;
        - to change SHOW CREATE statement to output definition query in the
          binary character set (i.e. without any conversion);
        - introduce SHOW CREATE TRIGGER statement;
        - to dump special statements to switch the context to the original one
          before dumping and restore it afterwards.
      
      Note, in order to preserve the database collation at the creation time,
      additional ALTER DATABASE might be used (to temporary switch the database
      collation back to the original value). In this case, ALTER DATABASE
      privilege will be required. This is a backward-incompatible change.
      
      3. INFORMATION_SCHEMA showed non-UTF8 strings
      
      The fix is to generate UTF8-query during the parsing, store it in the object
      and show it in the INFORMATION_SCHEMA.
      
      Basically, the idea is to create a copy of the original query convert it to
      UTF8. Character set introducers are removed and all text literals are
      converted to UTF8.
      
      This UTF8 query is intended to provide user-readable output. It must not be
      used to recreate the object.  Specialized SHOW CREATE statements should be
      used for this.
      
      The reason for this limitation is the following: the original query can
      contain symbols from several character sets (by means of character set
      introducers).
      
      Example:
      
        - original query:
          CREATE VIEW v1 AS SELECT _cp1251 'Hello' AS c1;
      
        - UTF8 query (for INFORMATION_SCHEMA):
          CREATE VIEW v1 AS SELECT 'Hello' AS c1;
      
      
      client/mysqldump.c:
        Set original character set and collation before dumping definition query.
      include/my_sys.h:
        Move out-parameter to the end of list.
      mysql-test/lib/mtr_report.pl:
        Ignore server-warnings during the test case.
      mysql-test/r/create.result:
        Update result file.
      mysql-test/r/ctype_cp932_binlog_stm.result:
        Update result file.
      mysql-test/r/events.result:
        Update result file.
      mysql-test/r/events_bugs.result:
        Update result file.
      mysql-test/r/events_grant.result:
        Update result file.
      mysql-test/r/func_in.result:
        Update result file.
      mysql-test/r/gis.result:
        Update result file.
      mysql-test/r/grant.result:
        Update result file.
      mysql-test/r/information_schema.result:
        Update result file.
      mysql-test/r/information_schema_db.result:
        Update result file.
      mysql-test/r/lowercase_view.result:
        Update result file.
      mysql-test/r/mysqldump.result:
        Update result file.
      mysql-test/r/ndb_sp.result:
        Update result file.
      mysql-test/r/ps.result:
        Update result file.
      mysql-test/r/rpl_replicate_do.result:
        Update result file.
      mysql-test/r/rpl_sp.result:
        Update result file.
      mysql-test/r/rpl_trigger.result:
        Update result file.
      mysql-test/r/rpl_view.result:
        Update result file.
      mysql-test/r/show_check.result:
        Update result file.
      mysql-test/r/skip_grants.result:
        Update result file.
      mysql-test/r/sp-destruct.result:
        Update result file.
      mysql-test/r/sp-error.result:
        Update result file.
      mysql-test/r/sp-security.result:
        Update result file.
      mysql-test/r/sp.result:
        Update result file.
      mysql-test/r/sql_mode.result:
        Update result file.
      mysql-test/r/system_mysql_db.result:
        Update result file.
      mysql-test/r/temp_table.result:
        Update result file.
      mysql-test/r/trigger-compat.result:
        Update result file.
      mysql-test/r/trigger-grant.result:
        Update result file.
      mysql-test/r/trigger.result:
        Update result file.
      mysql-test/r/view.result:
        Update result file.
      mysql-test/r/view_grant.result:
        Update result file.
      mysql-test/t/events.test:
        Update test case (new columns added).
      mysql-test/t/information_schema.test:
        Update test case (new columns added).
      mysql-test/t/show_check.test:
        Test case for SHOW CREATE TRIGGER in prepared statements and
        stored routines.
      mysql-test/t/sp-destruct.test:
        Update test case (new columns added).
      mysql-test/t/sp.test:
        Update test case (new columns added).
      mysql-test/t/view.test:
        Update test.
      mysys/charset.c:
        Move out-parameter to the end of list.
      scripts/mysql_system_tables.sql:
        Add new columns to mysql.proc and mysql.event.
      scripts/mysql_system_tables_fix.sql:
        Add new columns to mysql.proc and mysql.event.
      sql/event_data_objects.cc:
        Support new attributes for events.
      sql/event_data_objects.h:
        Support new attributes for events.
      sql/event_db_repository.cc:
        Support new attributes for events.
      sql/event_db_repository.h:
        Support new attributes for events.
      sql/events.cc:
        Add new columns to SHOW CREATE event resultset.
      sql/mysql_priv.h:
        1. Introduce Object_creation_ctx;
        2. Introduce SHOW CREATE TRIGGER;
        3. Introduce auxilary functions.
      sql/sp.cc:
        Add support for new store routines attributes.
      sql/sp_head.cc:
        Add support for new store routines attributes.
      sql/sp_head.h:
        Add support for new store routines attributes.
      sql/sql_lex.cc:
        Generate UTF8-body on parsing/lexing.
      sql/sql_lex.h:
        1. Generate UTF8-body on parsing/lexing.
        2. Introduce SHOW CREATE TRIGGER.
      sql/sql_parse.cc:
        Introduce SHOW CREATE TRIGGER.
      sql/sql_partition.cc:
        Update parse_sql().
      sql/sql_prepare.cc:
        Update parse_sql().
      sql/sql_show.cc:
        Support new attributes for views
      sql/sql_trigger.cc:
        Support new attributes for views
      sql/sql_trigger.h:
        Support new attributes for views
      sql/sql_view.cc:
        Support new attributes for views
      sql/sql_yacc.yy:
        1. Add SHOW CREATE TRIGGER statement.
        2. Generate UTF8-body for views, stored routines, triggers and events.
      sql/table.cc:
        Introduce Object_creation_ctx.
      sql/table.h:
        Introduce Object_creation_ctx.
      sql/share/errmsg.txt:
        Add new errors.
      mysql-test/include/ddl_i18n.check_events.inc:
        Aux file for test suite.
      mysql-test/include/ddl_i18n.check_sp.inc:
        Aux file for test suite.
      mysql-test/include/ddl_i18n.check_triggers.inc:
        Aux file for test suite.
      mysql-test/include/ddl_i18n.check_views.inc:
        Aux file for test suite.
      mysql-test/include/have_cp1251.inc:
        Aux file for test suite.
      mysql-test/include/have_cp866.inc:
        Aux file for test suite.
      mysql-test/include/have_koi8r.inc:
        Aux file for test suite.
      mysql-test/include/have_utf8.inc:
        Aux file for test suite.
      mysql-test/r/ddl_i18n_koi8r.result:
        Result file.
      mysql-test/r/ddl_i18n_utf8.result:
        Result file.
      mysql-test/r/have_cp1251.require:
        Aux file for test suite.
      mysql-test/r/have_cp866.require:
        Aux file for test suite.
      mysql-test/r/have_koi8r.require:
        Aux file for test suite.
      mysql-test/r/have_utf8.require:
        Aux file for test suite.
      mysql-test/t/ddl_i18n_koi8r.test:
        Complete koi8r test case for the CS patch.
      mysql-test/t/ddl_i18n_utf8.test:
        Complete utf8 test case for the CS patch.
      405f82d3
  24. 01 Jun, 2007 1 commit
    • unknown's avatar
      Bug #28477 innodb assertion and crash during alter table to add/drop partition. · e42439af
      unknown authored
      The bug was repeated on MyISAM tables, so isn't InnoDB specific.
      Reason of the bug is that partition-related members of TABLE_SHARE
      wasn't properly updated after ALTER command. So if other thread doesn't
      reread frm file, and just uses cached SHARE, it uses wrong data
      
      
      sql/sql_table.cc:
        Bug #28477 innodb assertion and crash during alter table to add/drop partition.
        
        keep share members updated after table modification
      sql/table.cc:
        Bug #28477 innodb assertion and crash during alter table to add/drop partition.
        
        share->partition_info_buffer_size initialization added
      sql/table.h:
        Bug #28477 innodb assertion and crash during alter table to add/drop partition.
        
        partition_info_buffer_size declared in st_table_share to store
        the size of the memory available for partition_info
      e42439af
  25. 31 May, 2007 1 commit
    • unknown's avatar
      Fixed bug #27827. · e2c7a5b0
      unknown authored
      ON conditions from JOIN expression were ignored at CHECK OPTION
      check when updating a multi-table view with CHECK OPTION.
      
      The st_table_list::prep_check_option function has been
      modified to to take into account ON conditions at CHECK OPTION check
      It was also changed to build the check option condition only once
      for any update used in PS/SP.
      
      
      sql/table.h:
        Fixed bug #27827.
        The st_table_list::check_option_processed variable has been added
        to build the check option condition only once for any update used
        in PS/SP.
      sql/table.cc:
        Fixed bug #27827.
        The st_table_list::prep_check_option function has been
        modified to to take into account ON conditions at CHECK OPTION check
        It was also changed to build the check option condition only once
        for any update used in PS/SP.
      mysql-test/t/view.test:
        Updated test case for bug #27827.
      mysql-test/r/view.result:
        Updated test case for bug #27827.
      e2c7a5b0
  26. 22 May, 2007 1 commit
    • unknown's avatar
      Bug #28476: force index on a disabled myisam index gives error 124 · 3332b801
      unknown authored
      When processing the USE/FORCE index hints
      the optimizer was not checking if the indexes 
      specified are enabled (see ALTER TABLE).
      Fixed by:
       Backporting the fix for bug 20604 to 5.0
      
      
      mysql-test/r/key.result:
        Test for BUG 20604.
        The important part of the test is the explain output that 
        tests what indexes are used.
      mysql-test/r/myisam.result:
        Bug #28476: test cases
      mysql-test/t/key.test:
        Bug 20604: 
        The minimal test case that reveals the bug. The optimizer for 
        aggregates relies on keys disabled with ALTER TABLE ... DISABLE KEYS
        not being in the set TABLE::keys_in_use_for_query.
        When the execution engine tries to use a disabled index, MyISAM
        returns an error.
      mysql-test/t/myisam.test:
        Bug #28476: test cases
      sql/sql_base.cc:
        Bug #28476: 
         - Ignore disabled indexes in USE/FORCE index
      sql/sql_select.cc:
        Bug 20604 : The intersection operation between table->s->keys_in_use 
        and table->keys_in_use_for_query is no longer necessary.
        We can trust that the latter is a subset of the former.
      sql/table.h:
        Bug 20604:
        Added comments to TABLE_SHARE::keys_in_use and
        TABLE::keys_in_use_for_query.
      3332b801
  27. 11 May, 2007 2 commits
    • unknown's avatar
      Fix for: · d46c8ce6
      unknown authored
        Bug #20662 "Infinite loop in CREATE TABLE IF NOT EXISTS ... SELECT
                    with locked tables"
        Bug #20903 "Crash when using CREATE TABLE .. SELECT and triggers"
        Bug #24738 "CREATE TABLE ... SELECT is not isolated properly"
        Bug #24508 "Inconsistent results of CREATE TABLE ... SELECT when
                    temporary table exists"
      
      Deadlock occured when one tried to execute CREATE TABLE IF NOT
      EXISTS ... SELECT statement under LOCK TABLES which held
      read lock on target table.
      Attempt to execute the same statement for already existing
      target table with triggers caused server crashes.
      Also concurrent execution of CREATE TABLE ... SELECT statement
      and other statements involving target table suffered from
      various races (some of which might've led to deadlocks).
      Finally, attempt to execute CREATE TABLE ... SELECT in case
      when a temporary table with same name was already present
      led to the insertion of data into this temporary table and
      creation of empty non-temporary table.
       
      All above problems stemmed from the old implementation of CREATE
      TABLE ... SELECT in which we created, opened and locked target
      table without any special protection in a separate step and not
      with the rest of tables used by this statement.
      This underminded deadlock-avoidance approach used in server
      and created window for races. It also excluded target table
      from prelocking causing problems with trigger execution.
      
      The patch solves these problems by implementing new approach to
      handling of CREATE TABLE ... SELECT for base tables.
      We try to open and lock table to be created at the same time as
      the rest of tables used by this statement. If such table does not
      exist at this moment we create and place in the table cache special
      placeholder for it which prevents its creation or any other usage
      by other threads.
      We still use old approach for creation of temporary tables.
      
      Note that we have separate fix for 5.0 since there we use slightly
      different less intrusive approach.
      
      
      mysql-test/r/create.result:
        Extended test coverage for CREATE TABLE ... SELECT. In particular added
        tests for bug #24508 "Inconsistent results of CREATE TABLE ... SELECT
        when temporary table exists" and bug #20662 "Infinite loop in CREATE
        TABLE IF NOT EXISTS ... SELECT with locked tables".
      mysql-test/r/trigger.result:
        Added test case for bug #20903 "Crash when using CREATE TABLE .. SELECT
        and triggers"
      mysql-test/t/create.test:
        Extended test coverage for CREATE TABLE ... SELECT. In particular added
        tests for bug #24508 "Inconsistent results of CREATE TABLE ... SELECT
        when temporary table exists" and bug #20662 "Infinite loop in CREATE
        TABLE IF NOT EXISTS ... SELECT with locked tables".
      mysql-test/t/trigger.test:
        Added test case for bug #20903 "Crash when using CREATE TABLE .. SELECT
        and triggers"
      sql/lock.cc:
        Now for creation of name-lock placeholder lock_table_name() uses
        auxiliary function table_cache_insert_placeholder().
      sql/mysql_priv.h:
        Removed declaration of non-existing build_table_path() routine.
        The former mysql_create_table_internal() was renamed to
        mysql_create_table_no_lock() and now exposed to other modules to
        give them opportunity of creation of tables in cases when name-lock
        is already obtained.
        reopen_name_locked_table() now has 3rd argument which controls linking
        in of table being opened into THD::open_tables (this is useful in
        cases when placeholder used for name-locking is already linked into
        this list).
        Added declaration of auxiliary function table_cache_insert_placeholder()
        which is used for creation of table placeholders for name-locking.
        Added declaration of lock_table_name_if_not_cached() which can be
        used to take an exclusive name-lock on table if there are no records
        for it in table cache.
        Changed signature of unlink_open_table() function to simplify its use
        and make it useful for table placeholders and tables that are only open.
        Added auxiliary drop_open_table() routine.
        Moved declaration of refresh_version to table.h header to make it
        accessible from inline methods of TABLE class.
        MYSQL_OPEN_IGNORE_LOCKED_TABLES flag is no longer used. Instead
        MYSQL_OPEN_TEMPORARY_ONLY option was added.
      sql/sql_base.cc:
        Added support for the new approach to the handling of CREATE TABLE
        ... SELECT for base tables.
        
        Now we try to open and lock table to be created at the same time as
        the rest of tables used by this statement. If such table does not
        exist at this moment we create and place in the table cache special
        placeholder for it which prevents its creation or any other usage
        by other threads.
        
        Note significant distinctions of this placeholder from the placeholder
        used for normal name-lock: 1) It is treated like open table by other
        name-locks so it does not allow name-lock taking operations like DROP
        TABLE or RENAME TABLE to proceed. 2) it is linked into THD::open_tables
        list and automatically removed during close_thread_tables() call
          
        open_tables():
          Implemented logic described above. To do this added
          auxiliary check_if_table_exists() function.
          Removed support for MYSQL_OPEN_IGNORE_LOCKED_TABLES option
          which is no longer used.
          Added MYSQL_OPEN_TEMPORARY_ONLY which is used to restrict
          search for temporary tables only.
        close_cached_tables()/close_thread_table()/reopen_tables()/
        close_old_data_files()/table_is_used()/remove_table_from_cache():
          Added support for open placeholders (note that we also use them
          when we need to re-open tables during flush).
        unlink_open_table():
          Changed function signature to simplify its use and to make
          useful for open placeholders and tables which are only
          open and not locked.
        Added auxiliary drop_open_table() routine.
        reopen_name_locked_table():
          Now has 3rd argument which controls linking in of table being
          opened into THD::open_tables (this is useful in cases when
          placeholder used for name-locking is already linked into
          this list).
        Added auxiliary table_cache_insert_placeholder() routine which
        simplifies creation of placeholders used for name-locking.
        Added lock_table_name_if_not_cached() which can be used to take
        an exclusive name-lock on table if there are no records for it
        in table cache.
      sql/sql_handler.cc:
        Adjusted mysql_ha_mark_tables_for_reopen() routine to properly
        handle placeholders which now can be linked into open tables
        list.
      sql/sql_insert.cc:
        Introduced new approach to handling of base tables in CREATE TABLE
        ... SELECT statement.
        
        Now we try to open and lock table to be created at the same time as
        the rest of tables used by this statement. If such table does not
        exist at this moment we create and place in the table cache special
        placeholder for it which prevents its creation or any other usage
        by other threads. By doing this we avoid races which existed with
        previous approach in which we created, opened and locked target in
        separate step without any special protection.
        This also allows properly calculate prelocking set in cases when
        target table already exists and has some on insert triggers.
        
        Note that we don't employ the same approach for temporary tables
        (this is okay as such tables are unaffected by other threads).
        
        Changed create_table_from_items() and methods of select_create
        class to implement this approach.
      sql/sql_parse.cc:
        The new approach to handling of CREATE TABLE ... SELECT for
        base tables assumes that all tables (including table to be
        created) are opened and (or) locked at the same time.
        So in cases when we create base table we have to pass to
        open_and_lock_tables() table list which includes target table.
      sql/sql_prepare.cc:
        The new approach to handling of CREATE TABLE ... SELECT for
        base tables assumes that all tables (including table to be
        created) are opened and (or) locked at the same time.
        So in cases when we create base table we have to pass to
        open_and_lock_tables() table list which includes target table.
      sql/sql_table.cc:
        Changed mysql_create_table(), mysql_create_like_table() and
        mysql_alter_table() (in rename case) to obtain exclusive name-lock
        on the non-temporary table which is going to be created (to which
        we going to rename). This ensures that not only destination table
        doesn't exist on disk but also that there are no placeholder in 
        table cache for it (i.e. there is no CREATE TABLE ... SELECT operation
        in progress for it). Note that to avoid deadlocks while taking these
        name-locks this code assumes that existence of any record for table in
        table cache (even name-lock) means that table exists. Altough such
        check can lead to false positives these should occur only in case of
        highly concurrent DDL operations on the table and should not break
        binary logging.
        
        Renamed mysql_create_table_internal() to mysql_create_table_no_lock()
        and made it accessible from other files to give them ability to create
        table in situation when name-lock is already obtained or not relevant.
        
        Adjusted calls to reopen_name_locked_table(), which now takes
        extra argument, which controls linking of open table into
        THD::open_tables list.
        
        Removed redundant setting of table's 'version' field before calls
        to close_cached_table(). This function will set it to 0 itself
        anyway.
      sql/sql_trigger.cc:
        reopen_name_locked_tables() now has one more argument which controls
        linking of opened table into the THD::open_tables list.
      sql/sql_yacc.yy:
        The new approach to handling of CREATE TABLE ... SELECT statement
        for base tables assumes that all tables including table to be
        created are open and (or) locked at the same time. Therefore
        we need to set correct lock for target table.
      sql/table.h:
        Moved declaration of refresh_version variable from mysql_priv.h
        to make it accessible from inline methods of TABLE class.
        Renamed TABLE::locked_by_flush member to open_placeholder since
        now it is also used for taking exclusive name-lock and not only
        by flush. 
        Introduced TABLE::is_name_opened() helper method which can be used
        to distinguish TABLE instances corresponding to open tables or
        placeholders for them from closed instances (e.g. due to their old
        version). Also introduced TABLE::needs_reopen_or_name_lock() helper
        which allows to check if TABLE instance corresponds to outdated
        version of table or to name-lock placeholder.
        Introduced TABLE_LIST::create member which marks elements of
        table list corresponds to the table to be created.
        Adjusted TABLE_LIST::placeholder() method to take into account 
        name-lock placeholders for tables to be created (this, for example,
        allows to properly handle such placeholders in lock_tables()).
        Finally, moved currently unused TABLE::open_next/open_prev
        members under ifdef NOT_YET.
      mysql-test/r/create_select-big.result:
        New BitKeeper file ``mysql-test/r/create_select-big.result''
      mysql-test/t/create_select-big.test:
        New BitKeeper file ``mysql-test/t/create_select-big.test''
      d46c8ce6
    • unknown's avatar
      Fix for: · c5a82455
      unknown authored
        Bug #20662 "Infinite loop in CREATE TABLE IF NOT EXISTS ... SELECT
                    with locked tables"
        Bug #20903 "Crash when using CREATE TABLE .. SELECT and triggers"
        Bug #24738 "CREATE TABLE ... SELECT is not isolated properly"
        Bug #24508 "Inconsistent results of CREATE TABLE ... SELECT when
                    temporary table exists"
       
      Deadlock occured when one tried to execute CREATE TABLE IF NOT
      EXISTS ... SELECT statement under LOCK TABLES which held
      read lock on target table.
      Attempt to execute the same statement for already existing
      target table with triggers caused server crashes.
      Also concurrent execution of CREATE TABLE ... SELECT statement
      and other statements involving target table suffered from
      various races (some of which might've led to deadlocks).
      Finally, attempt to execute CREATE TABLE ... SELECT in case
      when a temporary table with same name was already present
      led to the insertion of data into this temporary table and
      creation of empty non-temporary table.
       
      All above problems stemmed from the old implementation of CREATE
      TABLE ... SELECT in which we created, opened and locked target
      table without any special protection in a separate step and not
      with the rest of tables used by this statement.
      This underminded deadlock-avoidance approach used in server
      and created window for races. It also excluded target table
      from prelocking causing problems with trigger execution.
        
      The patch solves these problems by implementing new approach to
      handling of CREATE TABLE ... SELECT for base tables.
      We try to open and lock table to be created at the same time as
      the rest of tables used by this statement. If such table does not
      exist at this moment we create and place in the table cache special
      placeholder for it which prevents its creation or any other usage
      by other threads.
      
      We still use old approach for creation of temporary tables.
      
      Also note that we decided to postpone introduction of some tests
      for concurrent behaviour of CREATE TABLE ... SELECT till 5.1.
      The main reason for this is absence in 5.0 ability to set @@debug
      variable at runtime, which can be circumvented only by using several
      test files with individual .opt files. Since the latter is likely
      to slowdown test-suite unnecessary we chose not to push this tests
      into 5.0, but run them manually for this version and later push
      their optimized version into 5.1
      
      
      mysql-test/r/create.result:
        Extended test coverage for CREATE TABLE ... SELECT. In particular added
        tests for bug #24508 "Inconsistent results of CREATE TABLE ... SELECT
        when temporary table exists" and bug #20662 "Infinite loop in CREATE
        TABLE IF NOT EXISTS ... SELECT with locked tables".
      mysql-test/r/trigger.result:
        Added test case for bug #20903 "Crash when using CREATE TABLE .. SELECT
        and triggers"
      mysql-test/t/create.test:
        Extended test coverage for CREATE TABLE ... SELECT. In particular added
        tests for bug #24508 "Inconsistent results of CREATE TABLE ... SELECT
        when temporary table exists" and bug #20662 "Infinite loop in CREATE
        TABLE IF NOT EXISTS ... SELECT with locked tables".
      mysql-test/t/trigger.test:
        Added test case for bug #20903 "Crash when using CREATE TABLE .. SELECT
        and triggers"
      sql/lock.cc:
        Now for creation of name-lock placeholder in lock_table_name() we use
        auxiliary function table_cache_insert_placeholder().
      sql/mysql_priv.h:
        Made build_table_path() function available outside of sql_table.cc file.
        reopen_name_locked_table() now has 3rd argument which controls linking
        in of table being opened into THD::open_tables (this is useful in
        cases when placeholder used for name-locking is already linked into
        this list).
        Added declaration of auxiliary function table_cache_insert_placeholder()
        which is used for creation of table placeholders for name-locking.
        Added declaration of table_cache_has_open_placeholder() function which
        can be used for checking if table cache contains an open placeholder for
        the table and if this placeholder was created by another thread.
        (This function is needed only in 5.0 where we use it in various versions
         of CREATE TABLE in order to protect it from concurrent CREATE TABLE
         ... SELECT operations for the table. Starting from 5.1 we use different
         approach so it is going to be removed there).
        Made close_old_data_files() static within sql_base.cc file. 
        Added auxiliary drop_open_table() routine.
        Moved declaration of refresh_version to table.h header to make it
        accessible from inline methods of TABLE class.
        MYSQL_OPEN_IGNORE_LOCKED_TABLES flag is no longer used. Instead
        MYSQL_OPEN_TEMPORARY_ONLY option was added.
      sql/sql_base.cc:
        Added support for the new approach to the handling of CREATE TABLE
        ... SELECT for base tables.
        
        Now we try to open and lock table to be created at the same time as
        the rest of tables used by this statement. If such table does not
        exist at this moment we create and place in the table cache special
        placeholder for it which prevents its creation or any other usage
        by other threads.
        
        Note significant distinctions of this placeholder from the placeholder
        used for normal name-lock: 1) It is treated like open table by other
        name-locks so it does not allow name-lock taking operations like DROP
        TABLE or RENAME TABLE to proceed. 2) it is linked into THD::open_tables
        list and automatically removed during close_thread_tables() call.
        
        open_tables():
          Implemented logic described above. To do this added
          auxiliary check_if_table_exists() function.
          Removed support for MYSQL_OPEN_IGNORE_LOCKED_TABLES option
          which is no longer used.
          Added MYSQL_OPEN_TEMPORARY_ONLY which is used to restrict
          search for temporary tables only.
        close_cached_tables()/close_thread_table()/reopen_tables()/
        close_old_data_files()/table_is_used()/remove_table_from_cache():
          Added support for open placeholders (note that we also use them
          when we need to re-open tables during flush).
        Added auxiliary drop_open_table() routine.
        reopen_name_locked_table():
          Now has 3rd argument which controls linking in of table being
          opened into THD::open_tables (this is useful in cases when
          placeholder used for name-locking is already linked into
          this list).
        Added auxiliary table_cache_insert_placeholder() routine which
        simplifies creation of placeholders used for name-locking.
        Added table_cache_has_open_placeholder() function which can be
        used for checking if table cache contains an open placeholder for
        the table and if this placeholder was created by another thread.
        (This function is needed only in 5.0 where we use it in various versions
         of CREATE TABLE in order to protect it from concurrent CREATE TABLE
         ... SELECT operations for the table. Starting from 5.1 we use different
         approach so it is going to be removed there).
      sql/sql_handler.cc:
        Adjusted mysql_ha_mark_tables_for_reopen() routine to properly
        handle placeholders which now can be linked into open tables
        list.
      sql/sql_insert.cc:
        Introduced new approach to handling of base tables in CREATE TABLE
        ... SELECT statement.
        
        Now we try to open and lock table to be created at the same time as
        the rest of tables used by this statement. If such table does not
        exist at this moment we create and place in the table cache special
        placeholder for it which prevents its creation or any other usage
        by other threads. By doing this we avoid races which existed with
        previous approach in which we created, opened and locked target in
        separate step without any special protection.
        This also allows properly calculate prelocking set in cases when
        target table already exists and has some on insert triggers.
          
        Note that we don't employ the same approach for temporary tables
        (this is okay as such tables are unaffected by other threads).
        
        Changed create_table_from_items() and select_create methods to
        implement this approach.
      sql/sql_parse.cc:
        The new approach to handling of CREATE TABLE ... SELECT for
        base tables assumes that all tables (including table to be
        created) are opened and (or) locked at the same time.
        So in cases when we create base table we have to pass to
        open_and_lock_tables() table list which includes target table.
      sql/sql_prepare.cc:
        The new approach to handling of CREATE TABLE ... SELECT for
        base tables assumes that all tables (including table to be
        created) are opened and (or) locked at the same time.
        So in cases when we create base table we have to pass to
        open_and_lock_tables() table list which includes target table.
      sql/sql_table.cc:
        Now mysql_create_table_internal(), mysql_create_like_table() and
        mysql_alter_table() not only check that destination table doesn't
        exist on disk but also check that there is no create placeholder
        in table cache for it (i.e. there is no CREATE TABLE ... SELECT
        operation in progress for it). Note that starting from 5.1 we
        use different approach in order to to protect CREATE TABLE ... SELECT
        from concurrent CREATE TABLE (ALTER TABLE ... RENAME) operations,
        the latter simply take name-locks on table before its creation
        (on target table name before renaming).
        
        Also made build_table_path() available from other files and
        asjusted calls to reopen_name_locked_table(), which now takes
        extra argument, which controls linking of open table into
        THD::open_tables list.
      sql/sql_trigger.cc:
        reopen_name_locked_tables() now has one more argument which controls
        linking of opened table into the THD::open_tables list.
      sql/sql_yacc.yy:
        The new approach to handling of CREATE TABLE ... SELECT statement
        for base tables assumes that all tables including table to be
        created are open and (or) locked at the same time. Therefore
        we need to set correct lock for target table.
      sql/table.h:
        Moved declaration of refresh_version variable from mysql_priv.h
        to make it accessible from inline methods of TABLE class. 
        Renamed TABLE::locked_by_flush member to open_placeholder since
        now it is also used for taking exclusive name-lock and not only
        by flush. 
        Introduced TABLE::is_name_opened() helper method which can be used
        to distinguish TABLE instances corresponding to open tables or
        placeholders for them from closed instances (e.g. due to their old
        version). Also introduced TABLE::needs_reopen_or_name_lock() helper
        which allows to check if TABLE instance corresponds to outdated
        version of table or to name-lock placeholder.
        Introduced TABLE_LIST::create member which marks elements of
        table list corresponds to the table to be created.
        Adjusted TABLE_LIST::placeholder() method to take into account 
        name-lock placeholders for tables to be created (this, for example,
        allows to properly handle such placeholders in lock_tables()).
      c5a82455
  28. 10 May, 2007 1 commit
    • unknown's avatar
      WL#3817: Simplify string / memory area types and make things more consistent (first part) · f252f924
      unknown authored
      The following type conversions was done:
      
      - Changed byte to uchar
      - Changed gptr to uchar*
      - Change my_string to char *
      - Change my_size_t to size_t
      - Change size_s to size_t
      
      Removed declaration of byte, gptr, my_string, my_size_t and size_s. 
      
      Following function parameter changes was done:
      - All string functions in mysys/strings was changed to use size_t
        instead of uint for string lengths.
      - All read()/write() functions changed to use size_t (including vio).
      - All protocoll functions changed to use size_t instead of uint
      - Functions that used a pointer to a string length was changed to use size_t*
      - Changed malloc(), free() and related functions from using gptr to use void *
        as this requires fewer casts in the code and is more in line with how the
        standard functions work.
      - Added extra length argument to dirname_part() to return the length of the
        created string.
      - Changed (at least) following functions to take uchar* as argument:
        - db_dump()
        - my_net_write()
        - net_write_command()
        - net_store_data()
        - DBUG_DUMP()
        - decimal2bin() & bin2decimal()
      - Changed my_compress() and my_uncompress() to use size_t. Changed one
        argument to my_uncompress() from a pointer to a value as we only return
        one value (makes function easier to use).
      - Changed type of 'pack_data' argument to packfrm() to avoid casts.
      - Changed in readfrm() and writefrom(), ha_discover and handler::discover()
        the type for argument 'frmdata' to uchar** to avoid casts.
      - Changed most Field functions to use uchar* instead of char* (reduced a lot of
        casts).
      - Changed field->val_xxx(xxx, new_ptr) to take const pointers.
      
      Other changes:
      - Removed a lot of not needed casts
      - Added a few new cast required by other changes
      - Added some cast to my_multi_malloc() arguments for safety (as string lengths
        needs to be uint, not size_t).
      - Fixed all calls to hash-get-key functions to use size_t*. (Needed to be done
        explicitely as this conflict was often hided by casting the function to
        hash_get_key).
      - Changed some buffers to memory regions to uchar* to avoid casts.
      - Changed some string lengths from uint to size_t.
      - Changed field->ptr to be uchar* instead of char*. This allowed us to
        get rid of a lot of casts.
      - Some changes from true -> TRUE, false -> FALSE, unsigned char -> uchar
      - Include zlib.h in some files as we needed declaration of crc32()
      - Changed MY_FILE_ERROR to be (size_t) -1.
      - Changed many variables to hold the result of my_read() / my_write() to be
        size_t. This was needed to properly detect errors (which are
        returned as (size_t) -1).
      - Removed some very old VMS code
      - Changed packfrm()/unpackfrm() to not be depending on uint size
        (portability fix)
      - Removed windows specific code to restore cursor position as this
        causes slowdown on windows and we should not mix read() and pread()
        calls anyway as this is not thread safe. Updated function comment to
        reflect this. Changed function that depended on original behavior of
        my_pwrite() to itself restore the cursor position (one such case).
      - Added some missing checking of return value of malloc().
      - Changed definition of MOD_PAD_CHAR_TO_FULL_LENGTH to avoid 'long' overflow.
      - Changed type of table_def::m_size from my_size_t to ulong to reflect that
        m_size is the number of elements in the array, not a string/memory
        length.
      - Moved THD::max_row_length() to table.cc (as it's not depending on THD).
        Inlined max_row_length_blob() into this function.
      - More function comments
      - Fixed some compiler warnings when compiled without partitions.
      - Removed setting of LEX_STRING() arguments in declaration (portability fix).
      - Some trivial indentation/variable name changes.
      - Some trivial code simplifications:
        - Replaced some calls to alloc_root + memcpy to use
          strmake_root()/strdup_root().
        - Changed some calls from memdup() to strmake() (Safety fix)
        - Simpler loops in client-simple.c
      
      
      BitKeeper/etc/ignore:
        added libmysqld/ha_ndbcluster_cond.cc
        ---
        added debian/defs.mk debian/control
      client/completion_hash.cc:
        Remove not needed casts
      client/my_readline.h:
        Remove some old types
      client/mysql.cc:
        Simplify types
      client/mysql_upgrade.c:
        Remove some old types
        Update call to dirname_part
      client/mysqladmin.cc:
        Remove some old types
      client/mysqlbinlog.cc:
        Remove some old types
        Change some buffers to be uchar to avoid casts
      client/mysqlcheck.c:
        Remove some old types
      client/mysqldump.c:
        Remove some old types
        Remove some not needed casts
        Change some string lengths to size_t
      client/mysqlimport.c:
        Remove some old types
      client/mysqlshow.c:
        Remove some old types
      client/mysqlslap.c:
        Remove some old types
        Remove some not needed casts
      client/mysqltest.c:
        Removed some old types
        Removed some not needed casts
        Updated hash-get-key function arguments
        Updated parameters to dirname_part()
      client/readline.cc:
        Removed some old types
        Removed some not needed casts
        Changed some string lengths to use size_t
      client/sql_string.cc:
        Removed some old types
      dbug/dbug.c:
        Removed some old types
        Changed some string lengths to use size_t
        Changed some prototypes to avoid casts
      extra/comp_err.c:
        Removed some old types
      extra/innochecksum.c:
        Removed some old types
      extra/my_print_defaults.c:
        Removed some old types
      extra/mysql_waitpid.c:
        Removed some old types
      extra/perror.c:
        Removed some old types
      extra/replace.c:
        Removed some old types
        Updated parameters to dirname_part()
      extra/resolve_stack_dump.c:
        Removed some old types
      extra/resolveip.c:
        Removed some old types
      include/config-win.h:
        Removed some old types
      include/decimal.h:
        Changed binary strings to be uchar* instead of char*
      include/ft_global.h:
        Removed some old types
      include/hash.h:
        Removed some old types
      include/heap.h:
        Removed some old types
        Changed records_under_level to be 'ulong' instead of 'uint' to clarify usage of variable
      include/keycache.h:
        Removed some old types
      include/m_ctype.h:
        Removed some old types
        Changed some string lengths to use size_t
        Changed character length functions to return uint
        unsigned char -> uchar
      include/m_string.h:
        Removed some old types
        Changed some string lengths to use size_t
      include/my_alloc.h:
        Changed some string lengths to use size_t
      include/my_base.h:
        Removed some old types
      include/my_dbug.h:
        Removed some old types
        Changed some string lengths to use size_t
        Changed db_dump() to take uchar * as argument for memory to reduce number of casts in usage
      include/my_getopt.h:
        Removed some old types
      include/my_global.h:
        Removed old types:
        my_size_t -> size_t
        byte -> uchar
        gptr -> uchar *
      include/my_list.h:
        Removed some old types
      include/my_nosys.h:
        Removed some old types
      include/my_pthread.h:
        Removed some old types
      include/my_sys.h:
        Removed some old types
        Changed MY_FILE_ERROR to be in line with new definitions of my_write()/my_read()
        Changed some string lengths to use size_t
        my_malloc() / my_free() now uses void *
        Updated parameters to dirname_part() & my_uncompress()
      include/my_tree.h:
        Removed some old types
      include/my_trie.h:
        Removed some old types
      include/my_user.h:
        Changed some string lengths to use size_t
      include/my_vle.h:
        Removed some old types
      include/my_xml.h:
        Removed some old types
        Changed some string lengths to use size_t
      include/myisam.h:
        Removed some old types
      include/myisammrg.h:
        Removed some old types
      include/mysql.h:
        Removed some old types
        Changed byte streams to use uchar* instead of char*
      include/mysql_com.h:
        Removed some old types
        Changed some string lengths to use size_t
        Changed some buffers to be uchar* to avoid casts
      include/queues.h:
        Removed some old types
      include/sql_common.h:
        Removed some old types
      include/sslopt-longopts.h:
        Removed some old types
      include/violite.h:
        Removed some old types
        Changed some string lengths to use size_t
      libmysql/client_settings.h:
        Removed some old types
      libmysql/libmysql.c:
        Removed some old types
      libmysql/manager.c:
        Removed some old types
      libmysqld/emb_qcache.cc:
        Removed some old types
      libmysqld/emb_qcache.h:
        Removed some old types
      libmysqld/lib_sql.cc:
        Removed some old types
        Removed some not needed casts
        Changed some buffers to be uchar* to avoid casts
        true -> TRUE, false -> FALSE
      mysys/array.c:
        Removed some old types
      mysys/charset.c:
        Changed some string lengths to use size_t
      mysys/checksum.c:
        Include zlib to get definition for crc32
        Removed some old types
      mysys/default.c:
        Removed some old types
        Changed some string lengths to use size_t
      mysys/default_modify.c:
        Changed some string lengths to use size_t
        Removed some not needed casts
      mysys/hash.c:
        Removed some old types
        Changed some string lengths to use size_t
        Note: Prototype of hash_key() has changed which may cause problems if client uses hash_init() with a cast for the hash-get-key function.
        hash_element now takes 'ulong' as the index type (cleanup)
      mysys/list.c:
        Removed some old types
      mysys/mf_cache.c:
        Changed some string lengths to use size_t
      mysys/mf_dirname.c:
        Removed some old types
        Changed some string lengths to use size_t
        Added argument to dirname_part() to avoid calculation of length for 'to'
      mysys/mf_fn_ext.c:
        Removed some old types
        Updated parameters to dirname_part()
      mysys/mf_format.c:
        Removed some old types
        Changed some string lengths to use size_t
      mysys/mf_getdate.c:
        Removed some old types
      mysys/mf_iocache.c:
        Removed some old types
        Changed some string lengths to use size_t
        Changed calculation of 'max_length' to be done the same way in all functions
      mysys/mf_iocache2.c:
        Removed some old types
        Changed some string lengths to use size_t
        Clean up comments
        Removed not needed indentation
      mysys/mf_keycache.c:
        Removed some old types
      mysys/mf_keycaches.c:
        Removed some old types
      mysys/mf_loadpath.c:
        Removed some old types
      mysys/mf_pack.c:
        Removed some old types
        Changed some string lengths to use size_t
        Removed some not needed casts
        Removed very old VMS code
        Updated parameters to dirname_part()
        Use result of dirnam_part() to remove call to strcat()
      mysys/mf_path.c:
        Removed some old types
      mysys/mf_radix.c:
        Removed some old types
      mysys/mf_same.c:
        Removed some old types
      mysys/mf_sort.c:
        Removed some old types
      mysys/mf_soundex.c:
        Removed some old types
      mysys/mf_strip.c:
        Removed some old types
      mysys/mf_tempdir.c:
        Removed some old types
      mysys/mf_unixpath.c:
        Removed some old types
      mysys/mf_wfile.c:
        Removed some old types
      mysys/mulalloc.c:
        Removed some old types
      mysys/my_alloc.c:
        Removed some old types
        Changed some string lengths to use size_t
        Use void* as type for allocated memory area
        Removed some not needed casts
        Changed argument 'Size' to 'length' according coding guidelines
      mysys/my_chsize.c:
        Changed some buffers to be uchar* to avoid casts
      mysys/my_compress.c:
        More comments
        Removed some old types
        Changed string lengths to use size_t
        Changed arguments to my_uncompress() to make them easier to understand
        Changed packfrm()/unpackfrm() to not be depending on uint size (portability fix)
        Changed type of 'pack_data' argument to packfrm() to avoid casts.
      mysys/my_conio.c:
        Changed some string lengths to use size_t
      mysys/my_create.c:
        Removed some old types
      mysys/my_div.c:
        Removed some old types
      mysys/my_error.c:
        Removed some old types
      mysys/my_fopen.c:
        Removed some old types
      mysys/my_fstream.c:
        Removed some old types
        Changed some string lengths to use size_t
        writen -> written
      mysys/my_getopt.c:
        Removed some old types
      mysys/my_getwd.c:
        Removed some old types
        More comments
      mysys/my_init.c:
        Removed some old types
      mysys/my_largepage.c:
        Removed some old types
        Changed some string lengths to use size_t
      mysys/my_lib.c:
        Removed some old types
      mysys/my_lockmem.c:
        Removed some old types
      mysys/my_malloc.c:
        Removed some old types
        Changed malloc(), free() and related functions to use void *
        Changed all functions to use size_t
      mysys/my_memmem.c:
        Indentation cleanup
      mysys/my_once.c:
        Removed some old types
        Changed malloc(), free() and related functions to use void *
      mysys/my_open.c:
        Removed some old types
      mysys/my_pread.c:
        Removed some old types
        Changed all functions to use size_t
        Added comment for how my_pread() / my_pwrite() are supposed to work.
        Removed windows specific code to restore cursor position as this causes slowdown on windows and we should not mix read() and pread() calls anyway as this is not thread safe.
        (If we ever would really need this, it should be enabled only with a flag argument)
      mysys/my_quick.c:
        Removed some old types
        Changed all functions to use size_t
      mysys/my_read.c:
        Removed some old types
        Changed all functions to use size_t
      mysys/my_realloc.c:
        Removed some old types
        Use void* as type for allocated memory area
        Changed all functions to use size_t
      mysys/my_static.c:
        Removed some old types
      mysys/my_static.h:
        Removed some old types
      mysys/my_vle.c:
        Removed some old types
      mysys/my_wincond.c:
        Removed some old types
      mysys/my_windac.c:
        Removed some old types
      mysys/my_write.c:
        Removed some old types
        Changed all functions to use size_t
      mysys/ptr_cmp.c:
        Removed some old types
        Changed all functions to use size_t
      mysys/queues.c:
        Removed some old types
      mysys/safemalloc.c:
        Removed some old types
        Changed malloc(), free() and related functions to use void *
        Changed all functions to use size_t
      mysys/string.c:
        Removed some old types
        Changed all functions to use size_t
      mysys/testhash.c:
        Removed some old types
      mysys/thr_alarm.c:
        Removed some old types
      mysys/thr_lock.c:
        Removed some old types
      mysys/tree.c:
        Removed some old types
      mysys/trie.c:
        Removed some old types
      mysys/typelib.c:
        Removed some old types
      plugin/daemon_example/daemon_example.cc:
        Removed some old types
      regex/reginit.c:
        Removed some old types
      server-tools/instance-manager/buffer.cc:
        Changed some string lengths to use size_t
        Changed buffer to be of type uchar*
      server-tools/instance-manager/buffer.h:
        Changed some string lengths to use size_t
        Changed buffer to be of type uchar*
      server-tools/instance-manager/commands.cc:
        Removed some old types
        Changed some string lengths to use size_t
        Changed buffer to be of type uchar*
      server-tools/instance-manager/instance_map.cc:
        Removed some old types
        Changed some string lengths to use size_t
        Changed buffer to be of type uchar*
      server-tools/instance-manager/instance_options.cc:
        Changed buffer to be of type uchar*
        Replaced alloc_root + strcpy() with strdup_root()
      server-tools/instance-manager/mysql_connection.cc:
        Changed buffer to be of type uchar*
      server-tools/instance-manager/options.cc:
        Removed some old types
      server-tools/instance-manager/parse.cc:
        Changed some string lengths to use size_t
      server-tools/instance-manager/parse.h:
        Removed some old types
        Changed some string lengths to use size_t
      server-tools/instance-manager/protocol.cc:
        Changed some buffers to be uchar* to avoid casts
        Changed some string lengths to use size_t
      server-tools/instance-manager/protocol.h:
        Changed some string lengths to use size_t
      server-tools/instance-manager/user_map.cc:
        Removed some old types
        Changed some string lengths to use size_t
      sql/derror.cc:
        Removed some old types
        Changed some buffers to be uchar* to avoid casts
        Changed some string lengths to use size_t
      sql/discover.cc:
        Changed in readfrm() and writefrom() the type for argument 'frmdata' to uchar** to avoid casts
        Changed some string lengths to use size_t
        Changed some buffers to be uchar* to avoid casts
      sql/event_data_objects.cc:
        Removed some old types
        Added missing casts for alloc() and sprintf()
      sql/event_db_repository.cc:
        Changed some buffers to be uchar* to avoid casts
        Added missing casts for sprintf()
      sql/event_queue.cc:
        Removed some old types
      sql/field.cc:
        Removed some old types
        Changed memory buffers to be uchar*
        Changed some string lengths to use size_t
        Removed a lot of casts
        Safety fix in Field_blob::val_decimal() to not access zero pointer
      sql/field.h:
        Removed some old types
        Changed memory buffers to be uchar* (except of store() as this would have caused too many other changes). 
        Changed some string lengths to use size_t
        Removed some not needed casts
        Changed val_xxx(xxx, new_ptr) to take const pointers
      sql/field_conv.cc:
        Removed some old types
        Added casts required because memory area pointers are now uchar*
      sql/filesort.cc:
        Initalize variable that was used unitialized in error conditions
      sql/gen_lex_hash.cc:
        Removed some old types
        Changed memory buffers to be uchar*
        Changed some string lengths to use size_t
        Removed a lot of casts
        Safety fix in Field_blob::val_decimal() to not access zero pointer
      sql/gstream.h:
        Added required cast
      sql/ha_ndbcluster.cc:
        Removed some old types
        Updated hash-get-key function arguments
        Changed some buffers to be uchar* to avoid casts
        Added required casts
        Removed some not needed casts
      sql/ha_ndbcluster.h:
        Removed some old types
      sql/ha_ndbcluster_binlog.cc:
        Removed some old types
        Changed some buffers to be uchar* to avoid casts
        Replaced sql_alloc() + memcpy() + set end 0 with sql_strmake()
        Changed some string lengths to use size_t
        Added missing casts for alloc() and sprintf()
      sql/ha_ndbcluster_binlog.h:
        Removed some old types
      sql/ha_ndbcluster_cond.cc:
        Removed some old types
        Removed some not needed casts
      sql/ha_ndbcluster_cond.h:
        Removed some old types
      sql/ha_partition.cc:
        Removed some old types
        Changed prototype for change_partition() to avoid casts
      sql/ha_partition.h:
        Removed some old types
      sql/handler.cc:
        Removed some old types
        Changed some string lengths to use size_t
      sql/handler.h:
        Removed some old types
        Changed some string lengths to use size_t
        Changed type for 'frmblob' parameter for discover() and ha_discover() to get fewer casts
      sql/hash_filo.h:
        Removed some old types
        Changed all functions to use size_t
      sql/hostname.cc:
        Removed some old types
      sql/item.cc:
        Removed some old types
        Changed some string lengths to use size_t
        Use strmake() instead of memdup() to create a null terminated string.
        Updated calls to new Field()
      sql/item.h:
        Removed some old types
        Changed malloc(), free() and related functions to use void *
        Changed some buffers to be uchar* to avoid casts
      sql/item_cmpfunc.cc:
        Removed some old types
        Changed some buffers to be uchar* to avoid casts
      sql/item_cmpfunc.h:
        Removed some old types
      sql/item_create.cc:
        Removed some old types
      sql/item_func.cc:
        Removed some old types
        Changed some buffers to be uchar* to avoid casts
        Removed some not needed casts
        Added test for failing alloc() in init_result_field()
        Remove old confusing comment
        Fixed compiler warning
      sql/item_func.h:
        Removed some old types
      sql/item_row.cc:
        Removed some old types
      sql/item_row.h:
        Removed some old types
      sql/item_strfunc.cc:
        Include zlib (needed becasue we call crc32)
        Removed some old types
      sql/item_strfunc.h:
        Removed some old types
        Changed some types to match new function prototypes
      sql/item_subselect.cc:
        Removed some old types
      sql/item_subselect.h:
        Removed some old types
      sql/item_sum.cc:
        Removed some old types
        Changed some buffers to be uchar* to avoid casts
        Removed some not needed casts
      sql/item_sum.h:
        Removed some old types
      sql/item_timefunc.cc:
        Removed some old types
        Changed some string lengths to use size_t
      sql/item_timefunc.h:
        Removed some old types
      sql/item_xmlfunc.cc:
        Changed some string lengths to use size_t
      sql/item_xmlfunc.h:
        Removed some old types
      sql/key.cc:
        Removed some old types
        Removed some not needed casts
      sql/lock.cc:
        Removed some old types
        Added some cast to my_multi_malloc() arguments for safety
      sql/log.cc:
        Removed some old types
        Changed some string lengths to use size_t
        Changed some buffers to be uchar* to avoid casts
        Changed usage of pwrite() to not assume it holds the cursor position for the file
        Made usage of my_read() safer
      sql/log_event.cc:
        Removed some old types
        Added checking of return value of malloc() in pack_info()
        Changed some buffers to be uchar* to avoid casts
        Removed some 'const' to avoid casts
        Added missing casts for alloc() and sprintf()
        Added required casts
        Removed some not needed casts
        Added some cast to my_multi_malloc() arguments for safety
      sql/log_event.h:
        Removed some old types
        Changed some buffers to be uchar* to avoid casts
      sql/log_event_old.cc:
        Changed some buffers to be uchar* to avoid casts
        Removed some not needed casts
      sql/log_event_old.h:
        Changed some buffers to be uchar* to avoid casts
      sql/mf_iocache.cc:
        Removed some old types
      sql/my_decimal.cc:
        Changed memory area to use uchar*
      sql/my_decimal.h:
        Changed memory area to use uchar*
      sql/mysql_priv.h:
        Removed some old types
        Changed malloc(), free() and related functions to use void *
        Changed some string lengths to use size_t
        Changed definition of MOD_PAD_CHAR_TO_FULL_LENGTH to avoid long overflow
        Changed some buffers to be uchar* to avoid casts
      sql/mysqld.cc:
        Removed some old types
      sql/net_serv.cc:
        Removed some old types
        Changed some string lengths to use size_t
        Changed some buffers to be uchar* to avoid casts
        Ensure that vio_read()/vio_write() return values are stored in a size_t variable
        Removed some not needed casts
      sql/opt_range.cc:
        Removed some old types
        Changed some buffers to be uchar* to avoid casts
        Removed some not needed casts
      sql/opt_range.h:
        Removed some old types
        Changed some buffers to be uchar* to avoid casts
      sql/opt_sum.cc:
        Removed some old types
        Removed some not needed casts
      sql/parse_file.cc:
        Removed some old types
        Changed some string lengths to use size_t
        Changed alloc_root + memcpy + set end 0 -> strmake_root()
      sql/parse_file.h:
        Removed some old types
      sql/partition_info.cc:
        Removed some old types
        Added missing casts for alloc()
        Changed some buffers to be uchar* to avoid casts
      sql/partition_info.h:
        Changed some buffers to be uchar* to avoid casts
      sql/protocol.cc:
        Removed some old types
        Changed some buffers to be uchar* to avoid casts
        Removed some not needed casts
      sql/protocol.h:
        Removed some old types
        Changed some buffers to be uchar* to avoid casts
        Changed some string lengths to use size_t
      sql/records.cc:
        Removed some old types
      sql/repl_failsafe.cc:
        Removed some old types
        Changed some string lengths to use size_t
        Added required casts
      sql/rpl_filter.cc:
        Removed some old types
        Updated hash-get-key function arguments
        Changed some string lengths to use size_t
      sql/rpl_filter.h:
        Changed some string lengths to use size_t
      sql/rpl_injector.h:
        Removed some old types
      sql/rpl_record.cc:
        Removed some old types
        Removed some not needed casts
        Changed some buffers to be uchar* to avoid casts
      sql/rpl_record.h:
        Removed some old types
        Changed some buffers to be uchar* to avoid casts
      sql/rpl_record_old.cc:
        Removed some old types
        Changed some buffers to be uchar* to avoid casts
        Removed some not needed casts
      sql/rpl_record_old.h:
        Removed some old types
        Changed some buffers to be uchar* to avoid cast
      sql/rpl_rli.cc:
        Removed some old types
      sql/rpl_tblmap.cc:
        Removed some old types
      sql/rpl_tblmap.h:
        Removed some old types
      sql/rpl_utility.cc:
        Removed some old types
      sql/rpl_utility.h:
        Removed some old types
        Changed type of m_size from my_size_t to ulong to reflect that m_size is the number of elements in the array, not a string/memory length
      sql/set_var.cc:
        Removed some old types
        Updated parameters to dirname_part()
      sql/set_var.h:
        Removed some old types
      sql/slave.cc:
        Removed some old types
        Changed some string lengths to use size_t
      sql/slave.h:
        Removed some old types
      sql/sp.cc:
        Removed some old types
        Added missing casts for printf()
      sql/sp.h:
        Removed some old types
        Updated hash-get-key function arguments
      sql/sp_cache.cc:
        Removed some old types
        Added missing casts for printf()
        Updated hash-get-key function arguments
      sql/sp_head.cc:
        Removed some old types
        Added missing casts for alloc() and printf()
        Added required casts
        Updated hash-get-key function arguments
      sql/sp_head.h:
        Removed some old types
      sql/sp_pcontext.cc:
        Removed some old types
      sql/sp_pcontext.h:
        Removed some old types
      sql/sql_acl.cc:
        Removed some old types
        Changed some string lengths to use size_t
        Changed some buffers to be uchar* to avoid casts
        Removed some not needed casts
        Added required casts
      sql/sql_analyse.cc:
        Changed some buffers to be uchar* to avoid casts
      sql/sql_analyse.h:
        Changed some buffers to be uchar* to avoid casts
      sql/sql_array.h:
        Removed some old types
      sql/sql_base.cc:
        Removed some old types
        Updated hash-get-key function arguments
      sql/sql_binlog.cc:
        Removed some old types
        Added missing casts for printf()
      sql/sql_cache.cc:
        Removed some old types
        Updated hash-get-key function arguments
        Removed some not needed casts
        Changed some string lengths to use size_t
      sql/sql_cache.h:
        Removed some old types
        Removed reference to not existing function cache_key()
        Updated hash-get-key function arguments
      sql/sql_class.cc:
        Removed some old types
        Updated hash-get-key function arguments
        Added missing casts for alloc()
        Updated hash-get-key function arguments
        Moved THD::max_row_length() to table.cc (as it's not depending on THD)
        Removed some not needed casts
      sql/sql_class.h:
        Removed some old types
        Changed malloc(), free() and related functions to use void *
        Removed some not needed casts
        Changed some string lengths to use size_t
        Moved max_row_length and max_row_length_blob() to table.cc, as they are not depending on THD
      sql/sql_connect.cc:
        Removed some old types
        Added required casts
      sql/sql_db.cc:
        Removed some old types
        Removed some not needed casts
        Added some cast to my_multi_malloc() arguments for safety
        Added missing casts for alloc()
      sql/sql_delete.cc:
        Removed some old types
      sql/sql_handler.cc:
        Removed some old types
        Updated hash-get-key function arguments
        Added some cast to my_multi_malloc() arguments for safety
      sql/sql_help.cc:
        Removed some old types
        Changed some buffers to be uchar* to avoid casts
        Removed some not needed casts
      sql/sql_insert.cc:
        Removed some old types
        Added missing casts for alloc() and printf()
      sql/sql_lex.cc:
        Removed some old types
      sql/sql_lex.h:
        Removed some old types
        Removed some not needed casts
      sql/sql_list.h:
        Removed some old types
        Removed some not needed casts
      sql/sql_load.cc:
        Removed some old types
        Removed compiler warning
      sql/sql_manager.cc:
        Removed some old types
      sql/sql_map.cc:
        Removed some old types
      sql/sql_map.h:
        Removed some old types
      sql/sql_olap.cc:
        Removed some old types
      sql/sql_parse.cc:
        Removed some old types
        Trivial move of code lines to make things more readable
        Changed some string lengths to use size_t
        Added missing casts for alloc()
      sql/sql_partition.cc:
        Removed some old types
        Removed compiler warnings about not used functions
        Changed some buffers to be uchar* to avoid casts
        Removed some not needed casts
      sql/sql_partition.h:
        Removed some old types
        Changed some buffers to be uchar* to avoid casts
      sql/sql_plugin.cc:
        Removed some old types
        Added missing casts for alloc()
        Updated hash-get-key function arguments
      sql/sql_prepare.cc:
        Removed some old types
        Changed some buffers to be uchar* to avoid casts
        Added missing casts for alloc() and printf()
      sql-common/client.c:
        Removed some old types
        Changed some memory areas to use uchar*
      sql-common/my_user.c:
        Changed some string lengths to use size_t
      sql-common/pack.c:
        Changed some buffers to be uchar* to avoid casts
      sql/sql_repl.cc:
        Added required casts
        Changed some buffers to be uchar* to avoid casts
        Changed some string lengths to use size_t
      sql/sql_select.cc:
        Removed some old types
        Changed some buffers to be uchar* to avoid casts
        Removed some old types
      sql/sql_select.h:
        Removed some old types
        Changed some buffers to be uchar* to avoid casts
      sql/sql_servers.cc:
        Removed some old types
        Updated hash-get-key function arguments
      sql/sql_show.cc:
        Removed some old types
        Added missing casts for alloc()
        Removed some not needed casts
      sql/sql_string.cc:
        Removed some old types
        Added required casts
      sql/sql_table.cc:
        Removed some old types
        Removed compiler warning about not used variable
        Changed some buffers to be uchar* to avoid casts
        Removed some not needed casts
      sql/sql_test.cc:
        Removed some old types
      sql/sql_trigger.cc:
        Removed some old types
        Added missing casts for alloc()
      sql/sql_udf.cc:
        Removed some old types
        Updated hash-get-key function arguments
      sql/sql_union.cc:
        Removed some old types
      sql/sql_update.cc:
        Removed some old types
        Removed some not needed casts
      sql/sql_view.cc:
        Removed some old types
      sql/sql_yacc.yy:
        Removed some old types
        Changed some string lengths to use size_t
        Added missing casts for alloc()
      sql/stacktrace.c:
        Removed some old types
      sql/stacktrace.h:
        Removed some old types
      sql/structs.h:
        Removed some old types
      sql/table.cc:
        Removed some old types
        Updated hash-get-key function arguments
        Changed some buffers to be uchar* to avoid casts
        Removed setting of LEX_STRING() arguments in declaration
        Added required casts
        More function comments
        Moved max_row_length() here from sql_class.cc/sql_class.h
      sql/table.h:
        Removed some old types
        Changed some string lengths to use size_t
      sql/thr_malloc.cc:
        Use void* as type for allocated memory area
        Changed all functions to use size_t
      sql/tzfile.h:
        Changed some buffers to be uchar* to avoid casts
      sql/tztime.cc:
        Changed some buffers to be uchar* to avoid casts
        Updated hash-get-key function arguments
        Added missing casts for alloc()
        Removed some not needed casts
      sql/uniques.cc:
        Removed some old types
        Removed some not needed casts
      sql/unireg.cc:
        Removed some old types
        Changed some buffers to be uchar* to avoid casts
        Removed some not needed casts
        Added missing casts for alloc()
      storage/archive/archive_reader.c:
        Removed some old types
      storage/archive/azio.c:
        Removed some old types
        Removed some not needed casts
      storage/archive/ha_archive.cc:
        Removed some old types
        Changed type for 'frmblob' in archive_discover() to match handler
        Updated hash-get-key function arguments
        Removed some not needed casts
      storage/archive/ha_archive.h:
        Removed some old types
      storage/blackhole/ha_blackhole.cc:
        Removed some old types
      storage/blackhole/ha_blackhole.h:
        Removed some old types
      storage/csv/ha_tina.cc:
        Removed some old types
        Updated hash-get-key function arguments
        Changed some buffers to be uchar* to avoid casts
      storage/csv/ha_tina.h:
        Removed some old types
        Removed some not needed casts
      storage/csv/transparent_file.cc:
        Removed some old types
        Changed type of 'bytes_read' to be able to detect read errors
        Fixed indentation
      storage/csv/transparent_file.h:
        Removed some old types
      storage/example/ha_example.cc:
        Removed some old types
        Updated hash-get-key function arguments
      storage/example/ha_example.h:
        Removed some old types
      storage/federated/ha_federated.cc:
        Removed some old types
        Updated hash-get-key function arguments
        Removed some not needed casts
      storage/federated/ha_federated.h:
        Removed some old types
      storage/heap/_check.c:
        Changed some buffers to be uchar* to avoid casts
      storage/heap/_rectest.c:
        Removed some old types
      storage/heap/ha_heap.cc:
        Removed some old types
      storage/heap/ha_heap.h:
        Removed some old types
      storage/heap/heapdef.h:
        Removed some old types
      storage/heap/hp_block.c:
        Removed some old types
        Changed some string lengths to use size_t
      storage/heap/hp_clear.c:
        Removed some old types
      storage/heap/hp_close.c:
        Removed some old types
      storage/heap/hp_create.c:
        Removed some old types
      storage/heap/hp_delete.c:
        Removed some old types
      storage/heap/hp_hash.c:
        Removed some old types
      storage/heap/hp_info.c:
        Removed some old types
      storage/heap/hp_open.c:
        Removed some old types
      storage/heap/hp_rfirst.c:
        Removed some old types
      storage/heap/hp_rkey.c:
        Removed some old types
      storage/heap/hp_rlast.c:
        Removed some old types
      storage/heap/hp_rnext.c:
        Removed some old types
      storage/heap/hp_rprev.c:
        Removed some old types
      storage/heap/hp_rrnd.c:
        Removed some old types
      storage/heap/hp_rsame.c:
        Removed some old types
      storage/heap/hp_scan.c:
        Removed some old types
      storage/heap/hp_test1.c:
        Removed some old types
      storage/heap/hp_test2.c:
        Removed some old types
      storage/heap/hp_update.c:
        Removed some old types
      storage/heap/hp_write.c:
        Removed some old types
        Changed some string lengths to use size_t
      storage/innobase/handler/ha_innodb.cc:
        Removed some old types
        Updated hash-get-key function arguments
        Added missing casts for alloc() and printf()
        Removed some not needed casts
      storage/innobase/handler/ha_innodb.h:
        Removed some old types
      storage/myisam/ft_boolean_search.c:
        Removed some old types
      storage/myisam/ft_nlq_search.c:
        Removed some old types
      storage/myisam/ft_parser.c:
        Removed some old types
        Changed some buffers to be uchar* to avoid casts
      storage/myisam/ft_static.c:
        Removed some old types
      storage/myisam/ft_stopwords.c:
        Removed some old types
      storage/myisam/ft_update.c:
        Removed some old types
        Changed some buffers to be uchar* to avoid casts
      storage/myisam/ftdefs.h:
        Removed some old types
        Changed some buffers to be uchar* to avoid casts
      storage/myisam/fulltext.h:
        Removed some old types
      storage/myisam/ha_myisam.cc:
        Removed some old types
      storage/myisam/ha_myisam.h:
        Removed some old types
      storage/myisam/mi_cache.c:
        Removed some old types
        Changed some buffers to be uchar* to avoid casts
      storage/myisam/mi_check.c:
        Removed some old types
      storage/myisam/mi_checksum.c:
        Removed some old types
      storage/myisam/mi_close.c:
        Removed some old types
      storage/myisam/mi_create.c:
        Removed some old types
      storage/myisam/mi_delete.c:
        Removed some old types
      storage/myisam/mi_delete_all.c:
        Removed some old types
      storage/myisam/mi_dynrec.c:
        Removed some old types
      storage/myisam/mi_extra.c:
        Removed some old types
      storage/myisam/mi_key.c:
        Removed some old types
      storage/myisam/mi_locking.c:
        Removed some old types
      storage/myisam/mi_log.c:
        Removed some old types
      storage/myisam/mi_open.c:
        Removed some old types
        Removed some not needed casts
        Check argument of my_write()/my_pwrite() in functions returning int
        Added casting of string lengths to size_t
      storage/myisam/mi_packrec.c:
        Removed some old types
        Changed some buffers to be uchar* to avoid casts
      storage/myisam/mi_page.c:
        Removed some old types
      storage/myisam/mi_preload.c:
        Removed some old types
      storage/myisam/mi_range.c:
        Removed some old types
      storage/myisam/mi_rfirst.c:
        Removed some old types
      storage/myisam/mi_rkey.c:
        Removed some old types
      storage/myisam/mi_rlast.c:
        Removed some old types
      storage/myisam/mi_rnext.c:
        Removed some old types
      storage/myisam/mi_rnext_same.c:
        Removed some old types
      storage/myisam/mi_rprev.c:
        Removed some old types
      storage/myisam/mi_rrnd.c:
        Removed some old types
      storage/myisam/mi_rsame.c:
        Removed some old types
      storage/myisam/mi_rsamepos.c:
        Removed some old types
      storage/myisam/mi_scan.c:
        Removed some old types
      storage/myisam/mi_search.c:
        Removed some old types
      storage/myisam/mi_static.c:
        Removed some old types
      storage/myisam/mi_statrec.c:
        Removed some old types
      storage/myisam/mi_test1.c:
        Removed some old types
      storage/myisam/mi_test2.c:
        Removed some old types
      storage/myisam/mi_test3.c:
        Removed some old types
      storage/myisam/mi_unique.c:
        Removed some old types
      storage/myisam/mi_update.c:
        Removed some old types
      storage/myisam/mi_write.c:
        Removed some old types
      storage/myisam/myisam_ftdump.c:
        Removed some old types
      storage/myisam/myisamchk.c:
        Removed some old types
      storage/myisam/myisamdef.h:
        Removed some old types
      storage/myisam/myisamlog.c:
        Removed some old types
        Indentation fix
      storage/myisam/myisampack.c:
        Removed some old types
      storage/myisam/rt_index.c:
        Removed some old types
      storage/myisam/rt_split.c:
        Removed some old types
      storage/myisam/sort.c:
        Removed some old types
      storage/myisam/sp_defs.h:
        Removed some old types
      storage/myisam/sp_key.c:
        Removed some old types
      storage/myisammrg/ha_myisammrg.cc:
        Removed some old types
      storage/myisammrg/ha_myisammrg.h:
        Removed some old types
      storage/myisammrg/myrg_close.c:
        Removed some old types
      storage/myisammrg/myrg_def.h:
        Removed some old types
      storage/myisammrg/myrg_delete.c:
        Removed some old types
      storage/myisammrg/myrg_open.c:
        Removed some old types
        Updated parameters to dirname_part()
      storage/myisammrg/myrg_queue.c:
        Removed some old types
      storage/myisammrg/myrg_rfirst.c:
        Removed some old types
      storage/myisammrg/myrg_rkey.c:
        Removed some old types
      storage/myisammrg/myrg_rlast.c:
        Removed some old types
      storage/myisammrg/myrg_rnext.c:
        Removed some old types
      storage/myisammrg/myrg_rnext_same.c:
        Removed some old types
      storage/myisammrg/myrg_rprev.c:
        Removed some old types
      storage/myisammrg/myrg_rrnd.c:
        Removed some old types
      storage/myisammrg/myrg_rsame.c:
        Removed some old types
      storage/myisammrg/myrg_update.c:
        Removed some old types
      storage/myisammrg/myrg_write.c:
        Removed some old types
      storage/ndb/include/util/ndb_opts.h:
        Removed some old types
      storage/ndb/src/cw/cpcd/main.cpp:
        Removed some old types
      storage/ndb/src/kernel/vm/Configuration.cpp:
        Removed some old types
      storage/ndb/src/mgmclient/main.cpp:
        Removed some old types
      storage/ndb/src/mgmsrv/InitConfigFileParser.cpp:
        Removed some old types
        Removed old disabled code
      storage/ndb/src/mgmsrv/main.cpp:
        Removed some old types
      storage/ndb/src/ndbapi/NdbBlob.cpp:
        Removed some old types
      storage/ndb/src/ndbapi/NdbOperationDefine.cpp:
        Removed not used variable
      storage/ndb/src/ndbapi/NdbOperationInt.cpp:
        Added required casts
      storage/ndb/src/ndbapi/NdbScanOperation.cpp:
        Added required casts
      storage/ndb/tools/delete_all.cpp:
        Removed some old types
      storage/ndb/tools/desc.cpp:
        Removed some old types
      storage/ndb/tools/drop_index.cpp:
        Removed some old types
      storage/ndb/tools/drop_tab.cpp:
        Removed some old types
      storage/ndb/tools/listTables.cpp:
        Removed some old types
      storage/ndb/tools/ndb_config.cpp:
        Removed some old types
      storage/ndb/tools/restore/consumer_restore.cpp:
        Changed some buffers to be uchar* to avoid casts with new defintion of packfrm()
      storage/ndb/tools/restore/restore_main.cpp:
        Removed some old types
      storage/ndb/tools/select_all.cpp:
        Removed some old types
      storage/ndb/tools/select_count.cpp:
        Removed some old types
      storage/ndb/tools/waiter.cpp:
        Removed some old types
      strings/bchange.c:
        Changed function to use uchar * and size_t
      strings/bcmp.c:
        Changed function to use uchar * and size_t
      strings/bmove512.c:
        Changed function to use uchar * and size_t
      strings/bmove_upp.c:
        Changed function to use uchar * and size_t
      strings/ctype-big5.c:
        Changed functions to use size_t
        Changed character length functions to return uint
      strings/ctype-bin.c:
        Changed functions to use size_t
      strings/ctype-cp932.c:
        Changed functions to use size_t
        Changed character length functions to return uint
      strings/ctype-czech.c:
        Fixed indentation
        Changed functions to use size_t
      strings/ctype-euc_kr.c:
        Changed functions to use size_t
        Changed character length functions to return uint
      strings/ctype-eucjpms.c:
        Changed functions to use size_t
        Changed character length functions to return uint
        unsigned char -> uchar
      strings/ctype-gb2312.c:
        Changed functions to use size_t
        Changed character length functions to return uint
      strings/ctype-gbk.c:
        Changed functions to use size_t
        Changed character length functions to return uint
      strings/ctype-latin1.c:
        Changed functions to use size_t
        Changed character length functions to return uint
        unsigned char -> uchar
      strings/ctype-mb.c:
        Changed functions to use size_t
        Changed character length functions to return uint
      strings/ctype-simple.c:
        Changed functions to use size_t
        Simpler loops for caseup/casedown
        unsigned int -> uint
        unsigned char -> uchar
      strings/ctype-sjis.c:
        Changed functions to use size_t
        Changed character length functions to return uint
      strings/ctype-tis620.c:
        Changed functions to use size_t
        Changed character length functions to return uint
        unsigned char -> uchar
      strings/ctype-uca.c:
        Changed functions to use size_t
        unsigned char -> uchar
      strings/ctype-ucs2.c:
        Moved inclusion of stdarg.h to other includes
        usigned char -> uchar
        Changed functions to use size_t
        Changed character length functions to return uint
      strings/ctype-ujis.c:
        Changed functions to use size_t
        Changed character length functions to return uint
        unsigned char -> uchar
      strings/ctype-utf8.c:
        Changed functions to use size_t
        unsigned char -> uchar
        Indentation fixes
      strings/ctype-win1250ch.c:
        Indentation fixes
        Changed functions to use size_t
      strings/ctype.c:
        Changed functions to use size_t
      strings/decimal.c:
        Changed type for memory argument to uchar *
      strings/do_ctype.c:
        Indentation fixes
      strings/my_strtoll10.c:
        unsigned char -> uchar
      strings/my_vsnprintf.c:
        Changed functions to use size_t
      strings/r_strinstr.c:
        Removed some old types
        Changed functions to use size_t
      strings/str_test.c:
        Removed some old types
      strings/strappend.c:
        Changed functions to use size_t
      strings/strcont.c:
        Removed some old types
      strings/strfill.c:
        Removed some old types
      strings/strinstr.c:
        Changed functions to use size_t
      strings/strlen.c:
        Changed functions to use size_t
      strings/strmake.c:
        Changed functions to use size_t
      strings/strnlen.c:
        Changed functions to use size_t
      strings/strnmov.c:
        Changed functions to use size_t
      strings/strto.c:
        unsigned char -> uchar
      strings/strtod.c:
        Changed functions to use size_t
      strings/strxnmov.c:
        Changed functions to use size_t
      strings/xml.c:
        Changed functions to use size_t
        Indentation fixes
      tests/mysql_client_test.c:
        Removed some old types
      tests/thread_test.c:
        Removed some old types
      vio/test-ssl.c:
        Removed some old types
      vio/test-sslclient.c:
        Removed some old types
      vio/test-sslserver.c:
        Removed some old types
      vio/vio.c:
        Removed some old types
      vio/vio_priv.h:
        Removed some old types
        Changed vio_read()/vio_write() to work with size_t
      vio/viosocket.c:
        Changed vio_read()/vio_write() to work with size_t
        Indentation fixes
      vio/viossl.c:
        Changed vio_read()/vio_write() to work with size_t
        Indentation fixes
      vio/viosslfactories.c:
        Removed some old types
      vio/viotest-ssl.c:
        Removed some old types
      win/README:
        More explanations
      f252f924
  29. 25 Apr, 2007 1 commit
    • unknown's avatar
      Bug#27047 INFORMATION_SCHEMA table cannot have BIGINT fields · 8f374c8f
      unknown authored
      added support for DATE, TIME, BLOB, FLOAT and all *INT variants in I_S tables
      
      
      sql/item.h:
        added support for DATE, TIME, BLOB, FLOAT and all *INT variants in I_S tables
      sql/sp.cc:
        added support for DATE, TIME, BLOB, FLOAT and all *INT variants in I_S tables
      sql/sql_show.cc:
        added support for DATE, TIME, BLOB, FLOAT and all *INT variants in I_S tables
      sql/table.h:
        added MY_I_S_MAYBE_NULL & MY_I_S_UNSIGNED flags which are used as 
        field atributes for I_S schema table fields
      8f374c8f
  30. 05 Apr, 2007 1 commit
    • unknown's avatar
      A set of changes aiming to make the Event Scheduler more user-friendly · fa1d637e
      unknown authored
      when there are no up-to-date system tables to support it:
       - initialize the scheduler before reporting "Ready for connections".
         This ensures that warnings, if any, are printed before "Ready for
         connections", and this message is not mangled.
       - do not abort the scheduler if there are no system tables
       - check the tables once at start up, remember the status and disable
         the scheduler if the tables are not up to date.
         If one attempts to use the scheduler with bad tables,
         issue an error message.
       - clean up the behaviour of the module under LOCK TABLES and pre-locking
         mode
       - make sure implicit commit of Events DDL works as expected.
       - add more tests
      
      
      Collateral clean ups in the events code.
      
      This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work 
      when mysql.event is damaged
      
      
      mysql-test/r/events.result:
        Update results.
      mysql-test/r/events_bugs.result:
        Update results.
      mysql-test/r/events_restart_phase1.result:
        Update results.
      mysql-test/r/events_restart_phase2.result:
        Update results.
      mysql-test/r/events_restart_phase3.result:
        Update results.
      mysql-test/r/events_scheduling.result:
        Update results.
      mysql-test/r/events_time_zone.result:
        Update results.
      mysql-test/t/events.test:
        Add new tests for tampering with mysql.event and some more
        tests for sub-statements, LOCK TABLES mode and pre-locking.
      mysql-test/t/events_bugs.test:
        Move the non-concurrent part of test for Bug 16420 to this file.
      mysql-test/t/events_restart_phase1.test:
        Rewrite events_restart_* tests to take into account that now
        we check mysql.event table only once, at server startup.
      mysql-test/t/events_restart_phase2.test:
        Rewrite events_restart_* tests to take into account that now
        we check mysql.event table only once, at server startup.
      mysql-test/t/events_restart_phase3.test:
        Rewrite events_restart_* tests to take into account that now
        we check mysql.event table only once, at server startup.
      mysql-test/t/events_scheduling.test:
        Add more coverage for event_scheduler global variable.
      mysql-test/t/events_time_zone.test:
        Move the non-concurrent part of the tests for Bug 16420 to 
        events_bugs.test
      sql/event_data_objects.cc:
        Move update_timing_fields functionality to Event_db_repository.
        Make loading of events from a table record more robust to tampering
        with the table - now we do not check mysql.event on every table open.
      sql/event_data_objects.h:
        Cleanup.
      sql/event_db_repository.cc:
        Now Event_db_repository is responsible for table I/O only.
        All the logic of events DDL is handled outside, in Events class please
        refer to the added test coverage to see how this change affected
        the behavior of Event Scheduler.
        Dependency on sp_head.h and sp.h removed.
        Make this module robust to tweaks with mysql.event table.
        Move check_system_tables from events.cc to this file
      sql/event_db_repository.h:
        Cleanup declarations (remove unused ones, change return type to bool
        from int).
      sql/event_queue.cc:
        Update to adapt to the new start up scheme of the Event Scheduler.
      sql/event_queue.h:
        Cleanup declarations.
      sql/event_scheduler.cc:
        Make all the error messages uniform:
        [SEVERITY] Event Scheduler: [user][schema.event] message
        Using append_identifier for error logging was an overkill - we may 
        need it only if the system character set may have NUL (null character)
        as part of a valid identifier, this is currently never the case, 
        whereas additional quoting did not look nice in the log.
      sql/event_scheduler.h:
        Cleanup the headers.
      sql/events.cc:
        Use a different start up procedure of Event Scheduler:
        - at start up, try to check the system tables first.
        If they are not up-to-date, disable the scheduler.
        - try to load all the active events. In case of a load error, abort
        start up.
        - do not parse an event on start up. Parsing only gives some information
        about event validity, but far not all.
        Consolidate the business logic of Events DDL in this module.
        Now opt_event_scheduler may change after start up and thus is protected
        by LOCK_event_metadata mutex.
      sql/events.h:
        Use all-static-data-members approach to implement Singleton pattern.
      sql/mysqld.cc:
        New invocation scheme of Events. Move some logic to events.cc.
        Initialize the scheduler before reporting "Ready for connections".
      sql/set_var.cc:
        Clean up sys_var_thd_sql_mode::symbolic_mode_representation
        to work with a LEX_STRING.
        Move more logic related to @@events_scheduler global variable to Events
        module.
      sql/set_var.h:
        Update declarations.
      sql/share/errmsg.txt:
        If someone tampered with mysql.event table after the server has
        started we no longer give him/her a complete report what was actually 
        broken. Do not send the user to look at the error log in such case,
        as there is nothing there (check_table_intact is not executed).
      sql/sp_head.cc:
        Update to a new declaration of 
        sys_var_thd_sql_mode::symbolic_mode_representation
      sql/sql_db.cc:
        New invocation scheme of Events module.
      sql/sql_parse.cc:
        Move more logic to Events module. Make sure that we are consistent
        in the way access rights are checked for Events DDL: always
        after committing the current transaction and checking the system tables.
      sql/sql_show.cc:
        Update to the new declarations of 
        sys_var_thd_sql_mode::symbolic_mode_representation
      sql/sql_test.cc:
        New invocation scheme of events.
      sql/table.cc:
        mysql.event is a system table.
        Update check_table_intact to be concurrent, more verbose, and less smart.
      sql/table.h:
        Add a helper method.
      mysql-test/r/events_trans.result:
        New BitKeeper file ``mysql-test/r/events_trans.result''
      mysql-test/t/events_trans.test:
        New BitKeeper file ``mysql-test/t/events_trans.test'':
        test cases for Event Scheduler that require a transactional
        storage engine.
      fa1d637e
  31. 30 Mar, 2007 1 commit
    • unknown's avatar
      Bug#23233: 0 as LAST_INSERT_ID() after INSERT .. ON DUPLICATE in the · 86a0ffdd
      unknown authored
      NO_AUTO_VALUE_ON_ZERO mode.
      
      In the NO_AUTO_VALUE_ON_ZERO mode the table->auto_increment_field_not_null
      variable is used to indicate that a non-NULL value was specified by the user
      for an auto_increment column. When an INSERT .. ON DUPLICATE updates the
      auto_increment field this variable is set to true and stays unchanged for the
      next insert operation. This makes the next inserted row sometimes wrongly have
      0 as the value of the auto_increment field.
      
      Now the fill_record() function resets the table->auto_increment_field_not_null
      variable before filling the record.
      The table->auto_increment_field_not_null variable is also reset by the
      open_table() function for a case if we missed some auto_increment_field_not_null
      handling bug.
      Now the table->auto_increment_field_not_null is reset at the end of the
      mysql_load() function.
      
      Reset the table->auto_increment_field_not_null variable after each
      write_row() call in the copy_data_between_tables() function.
      
      
      
      
      sql/field_conv.cc:
        Bug#23233: 0 as LAST_INSERT_ID() after INSERT .. ON DUPLICATE in the 
        NO_AUTO_VALUE_ON_ZERO mode.
        A comment is corrected.
      sql/handler.cc:
        Bug#23233: 0 as LAST_INSERT_ID() after INSERT .. ON DUPLICATE in the 
        NO_AUTO_VALUE_ON_ZERO mode.
        Now the handler::update_auto_increment() function doesn't reset the
        table->auto_increment_field_not_null variable as it is done in the
        fill_record() function.
      sql/sql_base.cc:
        Bug#23233: 0 as LAST_INSERT_ID() after INSERT .. ON DUPLICATE in the 
        NO_AUTO_VALUE_ON_ZERO mode.
        Now the fill_record() function resets the table->auto_increment_field_not_null
        variable before filling the record.
        The table->auto_increment_field_not_null variable is also reset by the
        open_table() function for a case if we missed some auto_increment_field_not_null
        handling bug.
      sql/sql_insert.cc:
        Bug#23233: 0 as LAST_INSERT_ID() after INSERT .. ON DUPLICATE in the
        NO_AUTO_VALUE_ON_ZERO mode.
        Now the the table->auto_increment_field_not_null is reset at the end of the
        mysql_insert() an in the select_insert class destructor.
      sql/sql_load.cc:
        Bug#23233: 0 as LAST_INSERT_ID() after INSERT .. ON DUPLICATE in the 
        NO_AUTO_VALUE_ON_ZERO mode.
        Now the table->auto_increment_field_not_null is reset at the end of the
        mysql_load() function.
      sql/sql_table.cc:
        Bug#23233: 0 as LAST_INSERT_ID() after INSERT .. ON DUPLICATE in the
        NO_AUTO_VALUE_ON_ZERO mode.
        Reset the table->auto_increment_field_not_null variable after each
        write_row() call in the copy_data_between_tables() function.
      sql/table.h:
        Bug#23233: 0 as LAST_INSERT_ID() after INSERT .. ON DUPLICATE in the
        NO_AUTO_VALUE_ON_ZERO mode.
        A comment added.
      mysql-test/r/insert_update.result:
        Added the test case for the bug#23233: 0 as LAST_INSERT_ID() after
        INSERT .. ON DUPLICATE in the NO_AUTO_VALUE_ON_ZERO mode.
      mysql-test/t/insert_update.test:
        Added the test case for the bug#23233: 0 as LAST_INSERT_ID() after
        INSERT .. ON DUPLICATE in the NO_AUTO_VALUE_ON_ZERO mode.
      86a0ffdd
  32. 27 Mar, 2007 1 commit
    • unknown's avatar
      Remove unnecessary casts to uchar. The casts are stemming from · f5940fe9
      unknown authored
      the lexer API which internally uses  unsigned char variables to
      address its state map. The implementation of the lexer should be
      internal to the lexer, and not influence the rest of the code.
      
      
      sql/event_data_objects.cc:
        Clean up unnecessary type casts.
      sql/event_data_objects.h:
        Clean up unnecessary type casts.
      sql/ha_ndbcluster.cc:
        Clean up unnecessary type casts.
      sql/mysql_priv.h:
        Clean up unnecessary type casts.
      sql/partition_info.h:
        Clean up unnecessary type casts.
      sql/sp.cc:
        Clean up unnecessary type casts.
      sql/sp_head.cc:
        Clean up unnecessary type casts.
      sql/sp_head.h:
        Clean up unnecessary type casts.
      sql/sql_lex.cc:
        Clean up unnecessary type casts.
      sql/sql_lex.h:
        Clean up unnecessary type casts.
      sql/sql_parse.cc:
        Clean up unnecessary type casts.
      sql/sql_partition.cc:
        Clean up unnecessary type casts.
      sql/sql_partition.h:
        Clean up unnecessary type casts.
      sql/sql_prepare.cc:
        Clean up unnecessary type casts.
      sql/sql_trigger.cc:
        Clean up unnecessary type casts.
      sql/sql_view.cc:
        Clean up unnecessary type casts.
      sql/sql_yacc.yy:
        Clean up unnecessary type casts.
      sql/table.cc:
        Clean up unnecessary type casts.
      sql/table.h:
        Clean up unnecessary type casts.
      f5940fe9
  33. 22 Mar, 2007 1 commit
    • unknown's avatar
      - renaming TMP_TABLE to NON_TRANSACTIONAL_TMP_TABLE because this is · 685d21b7
      unknown authored
      what it actually means (Monty approved the renaming)
      - correcting description of transaction_alloc command-line options
      (our manual is correct)
      - fix for a failure of rpl_trigger.
      
      
      mysql-test/t/rpl_misc_functions.test:
        test was cleaning up only on slave, but it's also needed on master,
        otherwise it influences rpl_trigger.test
      sql/lock.cc:
        clearer name
      sql/mysqld.cc:
        I checked the code that those two variables are not about binlogging
        but about the size of the transaction's memroot which is used
        to create savepoint structures and to store list of tables to be invalidated
        (for NDB). The manual has a correct description, no need to fix it.
      sql/sql_base.cc:
        clearer name
      sql/sql_derived.cc:
        clearer name
      sql/sql_select.cc:
        clearer name
      sql/table.h:
        clearer name: TMP_TABLE is used for non-transactional tables.
      685d21b7
  34. 16 Mar, 2007 1 commit
    • unknown's avatar
      wl#3700 - post-review fixes: · 7d383909
      unknown authored
      s/ulonglong/key_part_map/, comments
      
      
      include/heap.h:
        wl#3700 - post-review fixes:
        s/ulonglong/key_part_map/
      include/my_base.h:
        wl#3700 - post-review fixes:
        s/ulonglong/key_part_map/
      include/myisam.h:
        wl#3700 - post-review fixes:
        s/ulonglong/key_part_map/
      include/myisammrg.h:
        wl#3700 - post-review fixes:
        s/ulonglong/key_part_map/
      sql/event_db_repository.cc:
        wl#3700 - post-review fixes:
        s/ulonglong/key_part_map/
      sql/ha_partition.cc:
        wl#3700 - post-review fixes:
        s/ulonglong/key_part_map/
      sql/ha_partition.h:
        wl#3700 - post-review fixes:
        s/ulonglong/key_part_map/
      sql/sql_select.h:
        wl#3700 - post-review fixes:
        remove tab_to_keypart_map()
      7d383909
  35. 06 Mar, 2007 1 commit
    • unknown's avatar
      Bug#8407 (Stored functions/triggers ignore exception handler) · 266a7fff
      unknown authored
      Bug 18914 (Calling certain SPs from triggers fail)
      Bug 20713 (Functions will not not continue for SQLSTATE VALUE '42S02')
      Bug 21825 (Incorrect message error deleting records in a table with a
        trigger for inserting)
      Bug 22580 (DROP TABLE in nested stored procedure causes strange dependency
        error)
      Bug 25345 (Cursors from Functions)
      
      
      This fix resolves a long standing issue originally reported with bug 8407,
      which affect the behavior of Stored Procedures, Stored Functions and Trigger
      in many different ways, causing symptoms reported by all the bugs listed.
      In all cases, the root cause of the problem traces back to 8407 and how the
      server locks tables involved with sub statements.
      
      Prior to this fix, the implementation of stored routines would:
      - compute the transitive closure of all the tables referenced by a top level
      statement
      - open and lock all the tables involved
      - execute the top level statement
      "transitive closure of tables" means collecting:
      - all the tables,
      - all the stored functions,
      - all the views,
      - all the table triggers
      - all the stored procedures
      involved, and recursively inspect these objects definition to find more
      references to more objects, until the list of every object referenced does
      not grow any more.
      This mechanism is known as "pre-locking" tables before execution.
      The motivation for locking all the tables (possibly) used at once is to
      prevent dead locks.
      
      One problem with this approach is that, if the execution path the code
      really takes during runtime does not use a given table, and if the table is
      missing, the server would not execute the statement.
      This in particular has a major impact on triggers, since a missing table
      referenced by an update/delete trigger would prevent an insert trigger to run.
      
      Another problem is that stored routines might define SQL exception handlers
      to deal with missing tables, but the server implementation would never give
      user code a chance to execute this logic, since the routine is never
      executed when a missing table cause the pre-locking code to fail.
      
      With this fix, the internal implementation of the pre-locking code has been
      relaxed of some constraints, so that failure to open a table does not
      necessarily prevent execution of a stored routine.
      
      In particular, the pre-locking mechanism is now behaving as follows:
      
      1) the first step, to compute the transitive closure of all the tables
      possibly referenced by a statement, is unchanged.
      
      2) the next step, which is to open all the tables involved, only attempts
      to open the tables added by the pre-locking code, but silently fails without
      reporting any error or invoking any exception handler is the table is not
      present. This is achieved by trapping internal errors with
      Prelock_error_handler
      
      3) the locking step only locks tables that were successfully opened.
      
      4) when executing sub statements, the list of tables used by each statements
      is evaluated as before. The tables needed by the sub statement are expected
      to be already opened and locked. Statement referencing tables that were not
      opened in step 2) will fail to find the table in the open list, and only at
      this point will execution of the user code fail.
      
      5) when a runtime exception is raised at 4), the instruction continuation
      destination (the next instruction to execute in case of SQL continue
      handlers) is evaluated.
      This is achieved with sp_instr::exec_open_and_lock_tables()
      
      6) if a user exception handler is present in the stored routine, that
      handler is invoked as usual, so that ER_NO_SUCH_TABLE exceptions can be
      trapped by stored routines. If no handler exists, then the runtime execution
      will fail as expected.
      
      With all these changes, a side effect is that view security is impacted, in
      two different ways.
      
      First, a view defined as "select stored_function()", where the stored
      function references a table that may not exist, is considered valid.
      The rationale is that, because the stored function might trap exceptions
      during execution and still return a valid result, there is no way to decide
      when the view is created if a missing table really cause the view to be invalid.
      
      Secondly, testing for existence of tables is now done later during
      execution. View security, which consist of trapping errors and return a
      generic ER_VIEW_INVALID (to prevent disclosing information) was only
      implemented at very specific phases covering *opening* tables, but not
      covering the runtime execution. Because of this existing limitation,
      errors that were previously trapped and converted into ER_VIEW_INVALID are
      not trapped, causing table names to be reported to the user.
      This change is exposing an existing problem, which is independent and will
      be resolved separately.
      
      
      mysql-test/r/information_schema_db.result:
        Revised the pre-locking code implementation, aligned the tests.
      mysql-test/r/sp-error.result:
        Revised the pre-locking code implementation, aligned the tests.
      mysql-test/r/sp.result:
        Revised the pre-locking code implementation, aligned the tests.
      mysql-test/r/trigger.result:
        Revised the pre-locking code implementation, aligned the tests.
      mysql-test/r/view.result:
        Revised the pre-locking code implementation, aligned the tests.
      mysql-test/t/sp-error.test:
        Revised the pre-locking code implementation, aligned the tests.
      mysql-test/t/sp.test:
        Revised the pre-locking code implementation, aligned the tests.
      mysql-test/t/trigger.test:
        Revised the pre-locking code implementation, aligned the tests.
      sql/lock.cc:
        table->placeholder now checks for schema_table
      sql/mysqld.cc:
        my_message_sql(): invoke internal exception handlers
      sql/sp_head.cc:
        exec_open_and_lock_tables(): open and lock tables, or return the
        continuation destination of this instruction
      sql/sp_head.h:
        exec_open_and_lock_tables(): open and lock tables, or return the
        continuation destination of this instruction
      sql/sql_base.cc:
        Prelock_error_handler: delay open table errors until execution
      sql/sql_class.cc:
        THD: add internal error handler, as an exception mechanism.
      sql/sql_class.h:
        THD: add internal error handler, as an exception mechanism.
      sql/sql_update.cc:
        table->placeholder now checks for schema_table
      sql/table.cc:
        st_table_list::hide_view_error(): masked more errors for view security
      sql/table.h:
        table->placeholder now checks for schema_table, and unopened tables
      266a7fff
  36. 05 Mar, 2007 1 commit
    • unknown's avatar
      WL#3527: Extend IGNORE INDEX so places where index is ignored · 79542930
      unknown authored
               can be specified
      Currently MySQL allows one to specify what indexes to ignore during
      join optimization. The scope of the current USE/FORCE/IGNORE INDEX 
      statement is only the FROM clause, while all other clauses are not 
      affected.
      
      However, in certain cases, the optimizer
      may incorrectly choose an index for sorting and/or grouping, and
      produce an inefficient query plan.
      
      This task provides the means to specify what indexes are
      ignored/used for what operation in a more fine-grained manner, thus
      making it possible to manually force a better plan. We do this
      by extending the current IGNORE/USE/FORCE INDEX syntax to:
      
      IGNORE/USE/FORCE INDEX [FOR {JOIN | ORDER | GROUP BY}]
      
      so that:
      - if no FOR is specified, the index hint will apply everywhere.
      - if MySQL is started with the compatibility option --old_mode then
        an index hint without a FOR clause works as in 5.0 (i.e, the 
        index will only be ignored for JOINs, but can still be used to
        compute ORDER BY).
      
      See the WL#3527 for further details.
      
      
      BitKeeper/deleted/.del-mysqld.cc.rej:
        Rename: sql/mysqld.cc.rej -> BitKeeper/deleted/.del-mysqld.cc.rej
      BitKeeper/deleted/.del-sql_parse.cc.rej:
        Rename: sql/sql_parse.cc.rej -> BitKeeper/deleted/.del-sql_parse.cc.rej
      BitKeeper/deleted/.del-table.cc.rej:
        Rename: sql/table.cc.rej -> BitKeeper/deleted/.del-table.cc.rej
      mysql-test/r/endspace.result:
        WL3527 : fixed undeterministic test
      mysql-test/r/group_by.result:
        WL#3527: test cases
      mysql-test/t/endspace.test:
        WL3527 : fixed undeterministic test
      mysql-test/t/group_by.test:
        WL#3527: test cases
      sql/item.cc:
        WL#3527: renames
      sql/mysql_priv.h:
        WL#3527: corrected initialization
      sql/mysqld.cc:
        WL#3527: added old_mode command line option
      sql/opt_range.cc:
        WL#3527: renames
      sql/sql_base.cc:
        WL#3527: 
         - renames
         - correct initialization
         - extended the processing of USE/FORCE/IGNORE index
      sql/sql_class.h:
        WL#3527: added old_mode command line option
      sql/sql_delete.cc:
        WL#3527: renames
      sql/sql_help.cc:
        WL#3527: renames
      sql/sql_lex.cc:
        WL#3527: extended parsing of USE/FORCE/IGNORE index
      sql/sql_lex.h:
        WL#3527: extended parsing of USE/FORCE/IGNORE index
      sql/sql_parse.cc:
        WL#3527: extended parsing of USE/FORCE/IGNORE index
      sql/sql_select.cc:
        WL#3527:
         - renames
         - passing additional info to support the extended 
           USE/FORCE/IGNORE INDEX syntax
         - If there is a covering index, and we have 
           IGNORE INDEX FOR GROUP/ORDER, and this index is 
           used for the JOIN part, then we have to ignore the
           IGNORE INDEX FOR GROUP/ORDER.
      sql/sql_show.cc:
        WL#3527: passing additional info to support the extended 
           USE/FORCE/IGNORE INDEX syntax
      sql/sql_update.cc:
        WL#3527: renames
      sql/sql_yacc.yy:
        WL#3527: extended parsing of USE/FORCE/IGNORE index
      sql/table.cc:
        WL#3527: extended the processing of USE/FORCE/IGNORE index
      sql/table.h:
        WL#3527: extended the processing of USE/FORCE/IGNORE index
      storage/myisam/ha_myisam.cc:
        WL#3527: extended the processing of USE/FORCE/IGNORE index
      79542930
  37. 02 Mar, 2007 1 commit
    • unknown's avatar
      WL#2936 · 1fc7f211
      unknown authored
        "Server Variables for Plugins"
        Implement support for plugins to declare server variables.
        Demonstrate functionality by removing InnoDB specific code from sql/*
        New feature for HASH - HASH_UNIQUE flag
        New feature for DYNAMIC_ARRAY - initializer accepts preallocated ptr.
        Completed support for plugin reference counting.
      
      
      include/hash.h:
        New flag for HASH
          HASH_UNIQUE
      include/my_getopt.h:
        New data types for options: ENUM and SET.
        Use typelib to enumerate possible values.
        New flag variable:
          my_getopt_skip_unknown
      include/my_sys.h:
        change to DYNAMIC_ARRAY init functions to support pre-allocated buffers
      include/mysql.h:
        relocate inclusion of typelib due to longlong requirement
      include/mysql/plugin.h:
        wl2936
          New declarations for plugin server variable support.
          New functions for use by plugins
      include/mysys_err.h:
        new my_getopt return value: EXIT_ARGUMENT_INVALID
      include/typelib.h:
        new typelib function: find_typeset(), returns an int which is a SET of
        the elements in the typelib
      mysql-test/r/im_utils.result:
        change to more specific command line settings
        --skip-innodb => --skip-plugin-innodb
        etc.
      mysql-test/r/log_tables.result:
        set default storage engine to MEMORY so that test will succeed even
        when some of the other named storage engines are not present
      mysql-test/r/ndb_dd_basic.result:
        change in error message
      mysql-test/r/partition_innodb.result:
        change in results
      mysql-test/r/ps_1general.result:
        bdb doesn't exist, use myisam for a non-transactional engine
      mysql-test/r/variables.result:
        information schema doesn't sort row results for server variables.
      mysql-test/t/log_tables.test:
        set default storage engine to MEMORY so that test will succeed even
        when some of the other named storage engines are not present
      mysql-test/t/ndb_dd_basic.test:
        ALTER LOGFILE GROUP no longer silently fail here
      mysql-test/t/partition_innodb.test:
        ALTER TABLE no longer silently fails for unknown storage engine
      mysql-test/t/ps_1general.test:
        remove unneccessary parts
        use myisam as it is an always present non-transactional engine
      mysql-test/t/variables.test:
        information schema doesn't sort row results for server variables.
      mysql-test/t/warnings_engine_disabled-master.opt:
        use the new style command line option
      mysys/array.c:
        change to DYNAMIC_ARRAY init functions to support pre-allocated buffers
      mysys/hash.c:
        New flag for HASH
          HASH_UNIQUE
        Implement HASH_UNIQUE functionality by performing a hash_search
      mysys/my_getopt.c:
        New data types for options: ENUM and SET.
        Use typelib to enumerate possible values.
        New flag variable:
          my_getopt_skip_unknown
      mysys/typelib.c:
        new typelib function: find_typeset(), returns an int which is a SET of
        the elements in the typelib
      sql/ha_ndbcluster.cc:
        use ha_statistic_increment() method instead of
        statistic_increment() function
        ha_ndbcluster variable has gone away.
      sql/ha_partition.cc:
        fix for reference counting
      sql/ha_partition.h:
        fix for reference counting
      sql/handler.cc:
        fixes for reference counting
      sql/handler.h:
        fixes for reference counting
        some new methods to aid storage engine writers
      sql/item_func.cc:
        find_sys_var() function now requires thd
      sql/item_sum.cc:
        fixes for ref counting
      sql/mysql_priv.h:
        remove unneccessary globals.
        new lock: LOCK_system_variables_hash
      sql/mysqld.cc:
        Remove InnoBase specific code.
        Support plugin command line processing.
      sql/set_var.cc:
        Remove InnoBase specific declarations
        Remove redundant declarations
        changes to permit new variables at run time
        changes for ref counting
      sql/set_var.h:
        changes to permit new variables at run time
        changes for ref counting
      sql/sql_base.cc:
        changes for ref counting
      sql/sql_cache.cc:
        mark code as needing work in the future
      sql/sql_class.cc:
        new functions to aid plugin authors
        initialize variables for dynamic plugin variables
      sql/sql_class.h:
        remove InnoBase specific declarations
        New declarations for plugin variables.
      sql/sql_connect.cc:
        initialization and cleanup of plugin variables
      sql/sql_delete.cc:
        change for ref counting
      sql/sql_insert.cc:
        change for ref counting
      sql/sql_lex.cc:
        changes for ref counting and plugin variables
      sql/sql_lex.h:
        add properties for plugin ref counting,
        add to distructor to clean up
      sql/sql_partition.cc:
        changes for ref counting
      sql/sql_plugin.cc:
        WL2936
          Plugin Variables
          New methods and code to support server variables for plugins.
          New code to complete plugin reference counting
          Debug code adds further indirection so that malloc debugging can be
          used to aid finding plugin ref count leaks
      sql/sql_plugin.h:
        WL2936
          Plugin Variables
          New methods and code to support server variables for plugins.
          New code to complete plugin reference counting
          Debug code adds further indirection so that malloc debugging can be
          used to aid finding plugin ref count leaks
      sql/sql_repl.cc:
        replication system variables moved here from set_var.cc
      sql/sql_repl.h:
        new function to initialise replication server variables
      sql/sql_select.cc:
        changes for ref counting
      sql/sql_show.cc:
        changes for ref counting
      sql/sql_table.cc:
        changes for ref counting
      sql/sql_tablespace.cc:
        use supplied functions instead of digging into data structures manually
      sql/sql_yacc.yy:
        changes for ref counting
        find_sys_var() now requires thd parameter
        changes on reporting errors to keep user-visible behaviour the same.
      sql/structs.h:
        changes for ref counting
      sql/table.cc:
        changes for ref counting
      sql/table.h:
        changes for ref counting
      storage/federated/ha_federated.cc:
        use ha_statistic_increment() method instead of statistic_increment()
        function
      storage/heap/ha_heap.cc:
        use ha_statistic_increment() method instead of statistic_increment()
        function
      storage/innobase/handler/ha_innodb.cc:
        use ha_statistic_increment() method instead of statistic_increment()
        function
        WL2936
          Move InnoBase specific code out of mysqld.cc and into here
          Declare all required server variables for InnoBase
      storage/innobase/include/trx0trx.h:
        store a bit more state so that InnoBase does not have to dig into
        mysqld internal data structures.
      storage/myisam/ha_myisam.cc:
        use ha_statistic_increment() method instead of statistic_increment()
        function
      storage/myisammrg/ha_myisammrg.cc:
        use ha_statistic_increment() method instead of statistic_increment()
        function
      1fc7f211
  38. 28 Feb, 2007 1 commit
    • unknown's avatar
      Remove dead code: flush_version was never increased in the server, · 5c58738a
      unknown authored
      therefore the logic associated with it never worked.
      
      
      sql/ha_partition.cc:
        Remove dead code. Update comments.
      sql/mysql_priv.h:
        Remove dead code (flush_version).
      sql/mysqld.cc:
        Remove dead code (flush_version).
      sql/sql_base.cc:
        Remove dead code.
      sql/table.cc:
        Remove dead code.
      sql/table.h:
        Remove dead code.
      5c58738a