1. 14 Aug, 2006 1 commit
    • unknown's avatar
      Manual merge 5.0->5.1. Post-merge fixes. · 17c49048
      unknown authored
      client/mysqldump.c:
        A post-merge fix - 'sock' was renamed to 'mysql'
      mysql-test/r/events_bugs.result:
        A post merge fix: now we strip rear comments from the query before
        it gets into the log.
      mysql-test/r/func_group.result:
        A post merge fix: default clause is now printed uppercase.
      mysql-test/r/im_life_cycle.result:
        Fix my mistake in manual resolve.
      mysql-test/r/mysqlcheck.result:
        use test; - after we drop client_test_db there is no current database.
        This cleanup is present in 5.1 only, but the test that was added in 
        5.0 assumes there is a current database, test.
      mysql-test/r/mysqldump.result:
        Ignore results of execution of mysqldump: we can't rely on 
        MASTER_LOG_POS in test results, it's different for statement
        and row level logging.
      mysql-test/r/mysqlshow.result:
        A post-merge fix: information schema contains a few more tables
        in 5.1
      mysql-test/r/mysqltest.result:
        A post merge fix: add 5.1 test end separator.
      mysql-test/r/ndb_basic.result:
        A post-merge fix: add test end separators.
      mysql-test/r/rpl_switch_stm_row_mixed.result:
        A post merge fix: length of varbinary column is now 3 times less.
        Assuming a side effect of some other change. Length of any
        field is not relevant in this test.
      mysql-test/r/rpl_view.result:
        Add an end of test marker.
      mysql-test/r/show_check.result:
        Remove duplicate results. Add results from a merged test case.
      mysql-test/r/sp-error.result:
        Add test end separators.
      mysql-test/r/sp-security.result:
        Post-merge fix: use test after the current database is dropped.
      mysql-test/r/sp.result:
        Remove a duplicate result (bad merge that left a copy of
        the test case for Bug#19862 in the test suite).
      mysql-test/r/strict.result:
        An after-merge fix for a new test case: in 5.1 we issue a more accurate
        error message: "Incorrect value" instead of "Truncated value". I reason
        it so that in case of an error nothing is truncated, really.
        Also found similar changes in other test cases.
      mysql-test/r/type_datetime.result:
        Fix the text of an error.
      mysql-test/r/union.result:
        A post-merge fix: CHARACTER SET is now uppercase.
      mysql-test/t/mysqlcheck.test:
        A post-merge fix: use test, after current database is dropped, there
        is no current database.
      mysql-test/t/mysqldump.test:
        Disable result log: it's dependent on binlog position.
      mysql-test/t/sp-security.test:
        use test
      sql/item_sum.cc:
        Adjust the call to the constructor after the merge.
      sql/sp_head.cc:
        Add a missing DBUG_VOID_RETURN, move security checks out of
        execute_trigger to Table_triggers_list: in 5.1 we check for
        TRIGGER privilege, not SUPER privilege to execute triggers, so these
        checks lack table context inside execute_trigger and have to be
        performed when we have table object on hand.
      sql/sql_db.cc:
        A post-merge fix: adjust load_db_opt_by_name and check_db_dir_existence
        (new functions added in 5.0) to be tablename-to-filename encoding 
        friendly.
      sql/sql_lex.cc:
        A post-merge fix: make skip_rear_comments operate on const uchar *s.
      sql/sql_lex.h:
        A post-merge fix.
      sql/sql_show.cc:
        A post-merge fix: fix a bad merge, rename orig_sql_command -> sql_command.
      sql/sql_trigger.cc:
        A post-merge fix: move security checks to process_triggers
        from execute_trigger.
      sql/sql_view.cc:
        Adjust to the new signature of skip_rear_comments.
      sql/sql_yacc.yy:
        Adjust to the new signature of init_strings.
      17c49048
  2. 09 Aug, 2006 1 commit
    • unknown's avatar
      Fix for bug#20701 BINARY keyword should be forbidden in stored routines · e2c051a4
      unknown authored
          
      create function func() returns char(10) binary ...
      is no more possible. This will be reenabled when 
      bug 2676 "DECLARE can't have COLLATE clause in stored procedure"
      is fixed.
      
      Fix after 2nd review
      
      
      mysql-test/r/sp-error.result:
        update result
      mysql-test/r/sp.result:
        update result
      mysql-test/t/sp-error.test:
        add a test case for bug#20701 BINARY keyword should be forbidden in stored procedures
      mysql-test/t/sp.test:
        Fix test case which uses binary for the return value of a function.
        It's no more possible after fix for bug#20701 
        BINARY keyword should be forbidden in SP
        
        Fix few glitches where ; is used instead of | . The delimiter is |
      sql/sql_yacc.yy:
        Fix for bug#20701 BINARY keyword should be forbidden in stored routines
        
        create function func() returns char(10) binary ...
        is no more possible. This will be reenabled when 
        bug 2676 "DECLARE can't have COLLATE clause in stored procedure"
        is fixed
      e2c051a4
  3. 31 Jul, 2006 2 commits
    • unknown's avatar
      Bug#21269 (DEFINER-clause is allowed for UDF-functions) · f48ac9aa
      unknown authored
      The problem was that the grammar allows to create a function with an optional
      definer clause, and define it as a UDF with the SONAME keyword.
      Such combination should be reported as an error.
      
      The solution is to not change the grammar itself, and to introduce a
      specific check in the yacc actions in 'create_function_tail' for UDF,
      that now reports ER_WRONG_USAGE when using both DEFINER and SONAME.
      
      
      mysql-test/r/udf.result:
        Added tests for Bug#21269 (DEFINER-clause is allowed for UDF-functions)
      mysql-test/t/udf.test:
        Added tests for Bug#21269 (DEFINER-clause is allowed for UDF-functions)
      sql/sql_yacc.yy:
        Creating a UDF function with a DEFINER clause is now a syntax error.
      f48ac9aa
    • unknown's avatar
      Bug #21080: ALTER VIEW makes user restate SQL SECURITY mode, and ALGORITHM · a04713a4
      unknown authored
        When executing ALTER TABLE all the attributes of the view were overwritten.
        This is contrary to the user's expectations.
        So some of the view attributes are preserved now : namely security and 
        algorithm. This means that if they are not specified in ALTER VIEW
        their values are preserved from CREATE VIEW instead of being defaulted.
      
      
      mysql-test/r/view.result:
        Bug #21080: ALTER VIEW makes user restate SQL SECURITY mode, and ALGORITHM
         - test suite
      mysql-test/t/view.test:
        Bug #21080: ALTER VIEW makes user restate SQL SECURITY mode, and ALGORITHM
         - test suite
      sql/sql_lex.h:
        Bug #21080: ALTER VIEW makes user restate SQL SECURITY mode, and ALGORITHM
         - must make create_view_suid a tristate : on/off/unspecified
      sql/sql_view.cc:
        Bug #21080: ALTER VIEW makes user restate SQL SECURITY mode, and ALGORITHM
         - open the view to get it's attributes and put then as defaults 
           for ALTER VIEW
      sql/sql_yacc.yy:
        Bug #21080: ALTER VIEW makes user restate SQL SECURITY mode, and ALGORITHM
         - must make create_view_suid a tristate : on/off/unspecified
      sql/table.h:
        Bug #21080: ALTER VIEW makes user restate SQL SECURITY mode, and ALGORITHM
         - must make create_view_suid a tristate : on/off/unspecified
      a04713a4
  4. 27 Jul, 2006 1 commit
    • unknown's avatar
      Fix for BUG#16211: Stored function return type for strings is ignored. · 51ce3a0e
      unknown authored
      Fix for BUG#16676: Database CHARSET not used for stored procedures
      
      The problem in BUG#16211 is that CHARSET-clause of the return type for
      stored functions is just ignored.
      
      The problem in BUG#16676 is that if character set is not explicitly
      specified for sp-variable, the server character set is used instead
      of the database one.
      
      The fix has two parts:
      
        - always store CHARSET-clause of the return type along with the
          type definition in mysql.proc.returns column. "Always" means that
          CHARSET-clause is appended even if it has not been explicitly
          specified in CREATE FUNCTION statement (this affects BUG#16211 only).
      
          Storing CHARSET-clause if it is not specified is essential to avoid
          changing character set if the database character set is altered in
          the future.
      
          NOTE: this change is not backward compatible with the previous releases.
      
        - use database default character set if CHARSET-clause is not explicitly
          specified (this affects both BUG#16211 and BUG#16676).
      
          NOTE: this also breaks backward compatibility.
      
      
      mysql-test/r/mysqldump.result:
        Updated result file.
      mysql-test/r/sp.result:
        Updated result file.
      mysql-test/t/sp.test:
        Provided test cases for BUG#16211, BUG#16676.
      sql/mysql_priv.h:
        Added two convenient functions for work with databases.
      sql/sp.cc:
        1. Add CHARSET-clause to CREATE-statement if it has been explicitly specified.
        2. Polishing -- provided some comments.
      sql/sp_head.cc:
        Use database charset as default charset of sp-variable.
      sql/sp_head.h:
        Move init_sp_name() out of init_strings().
      sql/sql_db.cc:
        Two new functions created:
          - load_db_opt_by_name();
          - check_db_dir_existence();
      sql/sql_show.cc:
        Eliminate duplicated code by using
        check_db_dir_existence() and load_db_opt_by_name()
      sql/sql_table.cc:
        Eliminate duplicated code by using
        check_db_dir_existence() and load_db_opt_by_name()
      sql/sql_yacc.yy:
        Call sp_head::init_sp_name() to initialize stored routine name.
      51ce3a0e
  5. 15 Jul, 2006 1 commit
    • unknown's avatar
      Fixed bug#10977: No warning issued if a column name is truncated · db1c95e8
      unknown authored
      When an alias is set to a column leading spaces are removed from the alias.
      But when this is done on aliases set by user this can lead to confusion.
      
      Now Item::set_name() method issues the warning if leading spaces were removed
      from an alias set by user.
      
      New warning message is added.
      
      
      mysql-test/t/select.test:
        Added test case for bug#10977:No warning issued if a column name is truncated.
      mysql-test/r/select.result:
        Added test case for bug#10977:No warning issued if a column name is truncated.
      sql/sql_yacc.yy:
        Fixed bug#10977: No warning issued if a column name is truncated
        The is_autogenerated_name flag is set before set_name() method call.
      sql/item.cc:
        Fixed bug#10977: No warning issued if a column name is truncated
        Now Item::set_name() method issues the warning if leading spaces were removed
        from an alias set by user.
      db1c95e8
  6. 12 Jul, 2006 1 commit
    • unknown's avatar
      Bug #17903: cast to char results in binary · 0be46e55
      unknown authored
        The character set was not being properly initialized in CAST() with
        a type like "CHAR(2) BINARY", which resulted in incorrect results or
        even a crash.
      
      
      mysql-test/r/cast.result:
        Add new results
      mysql-test/t/cast.test:
        Add new regression test
      sql/sql_yacc.yy:
        Make sure Lex->charset is set to NULL when nothing follows BINARY
        in type declaration.
      0be46e55
  7. 09 Jul, 2006 1 commit
    • unknown's avatar
      * Mixed replication mode * : · 9eca59b9
      unknown authored
      1) Fix for BUG#19630 "stored function inserting into two auto_increment breaks
      statement-based binlog":
      a stored function inserting into two such tables may fail to replicate
      (inserting wrong data in the slave's copy of the second table) if the slave's
      second table had an internal auto_increment counter different from master's.
      Because the auto_increment value autogenerated by master for the 2nd table
      does not go into binlog, only the first does, so the slave lacks information.
      To fix this, if running in mixed binlogging mode, if the stored function or
      trigger plans to update two different tables both having auto_increment
      columns, we switch to row-based for the whole function.
      We don't have a simple solution for statement-based binlogging mode, there
      the bug remains and will be documented as a known problem.
      Re-enabling rpl_switch_stm_row_mixed.
      2) Fix for BUG#20630 "Mixed binlogging mode does not work with stored
      functions, triggers, views", which was a documented limitation (in mixed
      mode, we didn't detect that a stored function's execution needed row-based
      binlogging (due to some UUID() call for example); same for
      triggers, same for views (a view created from a SELECT UUID(), and doing
      INSERT INTO sometable SELECT theview; would not replicate row-based).
      This is implemented by, after parsing a routine's body, remembering in sp_head
      that this routine needs row-based binlogging. Then when this routine is used,
      the caller is marked to require row-based binlogging too.
      Same for views: when we parse a view and detect that its SELECT needs
      row-based binary logging, we mark the calling LEX as such.
      3) Fix for BUG#20499 "mixed mode with temporary table breaks binlog":
      a temporary table containing e.g. UUID has its changes not binlogged,
      so any query updating a permanent table with data from the temporary table
      will run wrongly on slave. Solution: in mixed mode we don't switch back
      from row-based to statement-based when there exists temporary tables.
      4) Attempt to test mysqlbinlog on a binlog generated by mysqlbinlog;
      impossible due to BUG#11312 and BUG#20329, but test is in place for when
      they are fixed.
      
      
      mysql-test/r/rpl_switch_stm_row_mixed.result:
        testing BUG#19630 "stored function inserting into two auto_increment breaks
        statement-based binlog",
        testing BUG#20930 "Mixed binlogging mode does not work with stored functions,
        triggers, views.
        testing BUG#20499 "mixed mode with temporary table breaks binlog".
        I have carefully checked this big result file, it is correct.
      mysql-test/t/disabled.def:
        re-enabling test
      mysql-test/t/rpl_switch_stm_row_mixed.test:
        Test for BUG#19630 "stored function inserting into two auto_increment breaks
        statement-based binlog":
        we test that it goes row-based, but only when needed;
        without the bugfix, master and slave's data differed.
        Test for BUG#20499 "mixed mode with temporary table breaks binlog":
        without the bugfix, slave had 2 rows, not 3.
        Test for BUG#20930 "Mixed binlogging mode does not work with stored
        functions, triggers, views".
        Making strings used more different, for easier tracking of "by which routine
        was this binlog line generated".
        Towards the end, an attempt to test mysqlbinlog on a binlog generated by
        the mixed mode; attempt failed because of BUG#11312 and BUG#20929.
      sql/item_create.cc:
        fix for build without row-based replication
      sql/set_var.cc:
        cosmetic: in_sub_stmt is exactly meant to say if we are in stored
        function/trigger, so better use it.
      sql/sp.cc:
        When a routine adds its tables to the top statement's tables, if this routine
        needs row-based binlogging, mark the entire top statement as well.
        Same for triggers.
        Needed for making the mixed replication mode work with stored functions
        and triggers.
      sql/sp_head.cc:
        new enum value for sp_head::m_flags, remembers if, when parsing the 
        routine, we found at least one element (UUID(), UDF) requiring row-based
        binlogging.
      sql/sp_head.h:
        new enum value for sp_head::m_flags (see sp_head.cc).
        An utility method, intended for attributes of a routine which need
        to propagate upwards to the caller; so far only used for binlogging
        information, but open to any other attribute.
      sql/sql_base.cc:
        For BUG#19630 "stored function inserting into two auto_increment
        breaks statement-based binlog":
        When we come to locking tables, we have collected all tables used by
        functions, views and triggers, we detect if we're going to update two tables
        having auto_increment columns. If yes, statement-based binlogging won't work
        (Intvar_log_event records only one insert_id) so, if in mixed binlogging
        mode, switch to row-based.
        For making mixed mode work with stored functions using UUID/UDF:
        when we come to locking tables, we have parsed the whole body so know if
        some elements need row-based. Generation of row-based binlog events
        depends on locked tables, so this is the good place to decide of the binlog
        format.
      sql/sql_class.h:
        Fix for BUG#20499 "mixed mode with temporary table breaks binlog".
        Making mixed mode work with stored functions/triggers: don't reset
        back to statement-based if in executing a stored function/trigger.
      sql/sql_lex.cc:
        fix for build without row-based replication.
        binlog_row_based_if_mixed moves from st_lex to Query_tables_list, because
        that boolean should not be affected when a SELECT reads the INFORMATION_SCHEMA
        and thus implicitely parses a view or routine's body: this body may
        contain needing-row-based components like UUID() but the SELECT on
        INFORMATION_SCHEMA should not be affected by that and should not use
        row-based; as Query_tables_list is backed-up/reset/restored when parsing
        the view/routine's body, so does binlog_row_based_if_mixed and the
        top SELECT is not affected.
      sql/sql_lex.h:
        fix for build without row-based replication.
        binlog_row_based_if_mixed moves from st_lex to Query_tables_list
        (see sql_lex.cc)
      sql/sql_parse.cc:
        For the mixed mode to work with stored functions using UUID and UDF, we need
        to move the switch-back-from-row-to-statement out of
        mysql_execute_command() (which is executed for each statement, causing
        the binlogging mode to change in the middle of the function, which would
        not work)
        The switch to row-based is now done in lock_tables(), no need to keep it
        in mysql_execute_command(); in lock_tables() we also switch back from 
        row-based to statement-based (so in a stored procedure, all statements
        have their binlogging mode). We must however keep a resetting in
        mysql_reset_thd_for_next_command() as e.g. CREATE PROCEDURE does not call
        lock_tables().
      sql/sql_view.cc:
        When a view's body needs row-based binlogging (e.g. the view is created
        from SELECT UUID()), propagate this fact to the top st_lex.
      sql/sql_yacc.yy:
        use TRUE instead of 1, for binlog_row_based_if_mixed.
      9eca59b9
  8. 07 Jul, 2006 1 commit
    • unknown's avatar
      Bug#19207: Final parenthesis omitted for CREATE INDEX in Stored Procedure · fbb44a49
      unknown authored
      Wrong criteria was used to distinguish the case when there was no
      lookahead performed in the parser.  Bug affected only statements
      ending in one-character token without any optional tail, like CREATE
      INDEX and CALL.
      
      
      mysql-test/r/sp-code.result:
        Add result for bug#19207: Final parenthesis omitted for CREATE INDEX
        in Stored Procedure
      mysql-test/t/sp-code.test:
        Add test case for bug#19207: Final parenthesis omitted for CREATE INDEX
        in Stored Procedure
      sql/sql_yacc.yy:
        Use (yychar == YYEMPTY) as the criteria of whether lookahead was not
        performed.
      fbb44a49
  9. 05 Jul, 2006 1 commit
    • unknown's avatar
      BUG#20770: DATA DIRECTORY and INDEX DIRECTORY error when ALTER TABLE ADD/DROP/REORGANIZE partition · 073a3a64
      unknown authored
                 Also some error in handling options for subpartitions.
      
      
      mysql-test/r/partition.result:
        New test cases
      mysql-test/t/partition.test:
        New test cases
      sql/ha_partition.cc:
        Added partition_element to prepare_new_partition so that we can properly set-up table
        before creating partitions.
      sql/ha_partition.h:
        Added partition_element to prepare_new_partition so that we can properly set-up table
        before creating partitions.
      sql/sql_yacc.yy:
        Ensure that subpartitions always inherit options from the partition they belong to.
        They can change it afterwards but will use the options as set on partition level
        if set at that level.
      073a3a64
  10. 02 Jul, 2006 1 commit
    • unknown's avatar
      Bug#20570: CURRENT_USER() in a VIEW with SQL SECURITY DEFINER returns · 539b441f
      unknown authored
                 invoker name
      
      The bug was fixed similar to how context switch is handled in
      Item_func_sp::execute_impl(): we store pointer to current
      Name_resolution_context in Item_func_current_user class, and use
      its Security_context in Item_func_current_user::fix_fields().
      
      
      mysql-test/r/view_grant.result:
        Add result for bug#20570.
      mysql-test/t/view_grant.test:
        Add test case for bug#20570.
      sql/item_create.cc:
        Remove create_func_current_user(), as it is not used for automatic
        function creation.
      sql/item_create.h:
        Remove prototype for create_func_current_user().
      sql/item_strfunc.cc:
        Add implementations for Item_func_user::init(),
        Item_func_user::fix_fields() and
        Item_func_current_user::fix_fields() methods.  The latter uses
        Security_context from current Name_resolution_context, if one is
        defined.
      sql/item_strfunc.h:
        Move implementation of CURRENT_USER() out of Item_func_user to
        to new Item_func_current_user class.  For both classes calculate
        user name in fix_fields() method.
        For Item_func_current_user add context field to store
        Name_resolution_context in effect.
      sql/sql_yacc.yy:
        Pass current Name_resolution_context to Item_func_current_user.
      539b441f
  11. 29 Jun, 2006 2 commits
    • unknown's avatar
      Fix for bug#13934 Silent truncation of table comments · bf36ba49
      unknown authored
      Table comment: issue a warning(error in traditional mode) if length of comment > 60 symbols
      Column comment: issue a warning(error in traditional mode) if length of comment > 255 symbols
      Table 'comment' is changed from char* to LEX_STRING
      
      
      mysql-test/r/strict.result:
        test case
      mysql-test/t/strict.test:
        test case
      sql/handler.h:
        Table 'comment' is changed from char* to LEX_STRING
      sql/sql_show.cc:
        Table 'comment' is changed from char* to LEX_STRING
      sql/sql_table.cc:
        Table 'comment' is changed from char* to LEX_STRING
      sql/sql_yacc.yy:
        Table 'comment' is changed from char* to LEX_STRING
      sql/table.cc:
        Table 'comment' is changed from char* to LEX_STRING
      sql/table.h:
        Table 'comment' is changed from char* to LEX_STRING
      sql/unireg.cc:
        Fix for bug#13934 Silent truncation of table comments
        Table comment: issue a warning(error in traditional mode) if length of comment > 60 symbols
        Column comment: issue a warning(error in traditional mode) if length of comment > 255 symbols
      bf36ba49
    • unknown's avatar
      Bug#15298 SHOW GRANTS FOR CURRENT_USER: Incorrect output in DEFINER context · 3939e3be
      unknown authored
      user name is calculated on function execution stage instead of parse stage
      
      
      mysql-test/r/sp_notembedded.result:
        Bug#15298 SHOW GRANTS FOR CURRENT_USER: Incorrect output in DEFINER context
        test case
      mysql-test/t/sp_notembedded.test:
        Bug#15298 SHOW GRANTS FOR CURRENT_USER: Incorrect output in DEFINER context
        test case
      sql/mysql_priv.h:
        Bug#15298 SHOW GRANTS FOR CURRENT_USER: Incorrect output in DEFINER context
        new get_current_user(THD *thd, LEX_USER *user) function
      sql/sql_acl.cc:
        Bug#15298 SHOW GRANTS FOR CURRENT_USER: Incorrect output in DEFINER context
        user name is calculated using get_current_user() function
      sql/sql_parse.cc:
        Bug#15298 SHOW GRANTS FOR CURRENT_USER: Incorrect output in DEFINER context
        new get_current_user() function
        user name is calculated using get_current_user() function
      sql/sql_yacc.yy:
        Bug#15298 SHOW GRANTS FOR CURRENT_USER: Incorrect output in DEFINER context
        empty LEX_USER struct for CURRENT USER, 
        user name is calculated on function execution stage
      3939e3be
  12. 27 Jun, 2006 1 commit
    • unknown's avatar
      Bug#17203: "sql_no_cache sql_cache" in views created from prepared statement · 04193106
      unknown authored
      The problem was that we restored SQL_CACHE, SQL_NO_CACHE flags in SELECT
      statement from internal structures based on value set later at runtime, not
      the original value set by the user.
      
      The solution is to remember that original value.
      
      
      mysql-test/r/auto_increment.result:
        Update result to not report SQL_NO_CACHE if it wasn't there at first place.
      mysql-test/r/func_compress.result:
        Update result to not report SQL_NO_CACHE if it wasn't there at first place.
      mysql-test/r/func_math.result:
        Update result to not report SQL_NO_CACHE if it wasn't there at first place.
      mysql-test/r/func_system.result:
        Update result to not report SQL_NO_CACHE if it wasn't there at first place.
      mysql-test/r/func_time.result:
        Update result to not report SQL_NO_CACHE if it wasn't there at first place.
      mysql-test/r/information_schema.result:
        Update result to not report SQL_NO_CACHE if it wasn't there at first place.
      mysql-test/r/query_cache.result:
        Update result to not report SQL_NO_CACHE if it wasn't there at first place.
      mysql-test/r/rpl_get_lock.result:
        Update result to not report SQL_NO_CACHE if it wasn't there at first place.
      mysql-test/r/rpl_master_pos_wait.result:
        Update result to not report SQL_NO_CACHE if it wasn't there at first place.
      mysql-test/r/show_check.result:
        Add result for bug#17203.
      mysql-test/r/subselect.result:
        Update result to not report SQL_NO_CACHE if it wasn't there at first place.
      mysql-test/r/type_blob.result:
        Update result to not report SQL_NO_CACHE if it wasn't there at first place.
      mysql-test/r/variables.result:
        Update result to not report SQL_NO_CACHE if it wasn't there at first place.
      mysql-test/r/view.result:
        Update result to not report SQL_NO_CACHE if it wasn't there at first place.
      mysql-test/t/show_check.test:
        Add test case for bug#17203.
      sql/sql_lex.cc:
        Reset SELECT_LEX::sql_cache together with SELECT_LEX::options.
      sql/sql_lex.h:
        Add SELECT_LEX::sql_cache field to store original user setting.
      sql/sql_select.cc:
        Output SQL_CACHE and SQL_NO_CACHE depending on stored original user setting.
      sql/sql_yacc.yy:
        Make effect of SQL_CACHE and SQL_NO_CACHE mutually exclusive.  Ignore
        SQL_CACHE if SQL_NO_CACHE was used.  Remember what was set by the user.
        Reset SELECT_LEX::sql_cache together with SELECT_LEX::options.
      04193106
  13. 26 Jun, 2006 1 commit
    • unknown's avatar
      A fix and a test case for · 2783fc82
      unknown authored
       Bug#19022 "Memory bug when switching db during trigger execution"
       Bug#17199 "Problem when view calls function from another database."
       Bug#18444 "Fully qualified stored function names don't work correctly in
                  SELECT statements"
      
       Documentation note: this patch introduces a change in behaviour of prepared
       statements.
      
       This patch adds a few new invariants with regard to how THD::db should
       be used. These invariants should be preserved in future:
      
        - one should never refer to THD::db by pointer and always make a deep copy
          (strmake, strdup)
        - one should never compare two databases by pointer, but use strncmp or
          my_strncasecmp
        - TABLE_LIST object table->db should be always initialized in the parser or
          by creator of the object.
      
          For prepared statements it means that if the current database is changed
          after a statement is prepared, the database that was current at prepare
          remains active. This also means that you can not prepare a statement that
          implicitly refers to the current database if the latter is not set.
          This is not documented, and therefore needs documentation. This is NOT a
          change in behavior for almost all SQL statements except:
           - ALTER TABLE t1 RENAME t2 
           - OPTIMIZE TABLE t1
           - ANALYZE TABLE t1
           - TRUNCATE TABLE t1 --
           until this patch t1 or t2 could be evaluated at the first execution of
           prepared statement. 
      
           CURRENT_DATABASE() still works OK and is evaluated at every execution
           of prepared statement.
      
           Note, that in stored routines this is not an issue as the default
           database is the database of the stored procedure and "use" statement
           is prohibited in stored routines.
      
        This patch makes obsolete the use of check_db_used (it was never used in the
        old code too) and all other places that check for table->db and assign it
        from THD::db if it's NULL, except the parser.
      
       How this patch was created: THD::{db,db_length} were replaced with a
       LEX_STRING, THD::db. All the places that refer to THD::{db,db_length} were
       manually checked and:
        - if the place uses thd->db by pointer, it was fixed to make a deep copy
        - if a place compared two db pointers, it was fixed to compare them by value
          (via strcmp/my_strcasecmp, whatever was approproate)
       Then this intermediate patch was used to write a smaller patch that does the
       same thing but without a rename.
      
       TODO in 5.1:
         - remove check_db_used
         - deploy THD::set_db in mysql_change_db
      
       See also comments to individual files.
      
      
      mysql-test/r/create.result:
        Modify the result file: a database can never be NULL.
      mysql-test/r/ps.result:
        Update test results (Bug#17199 et al)
      mysql-test/r/sp.result:
        Update test results (Bug#17199 et al)
      mysql-test/t/create.test:
        Update the id of the returned error.
      mysql-test/t/ps.test:
        Add test coverage for prepared statements and current database. In scope of
        work on Bug#17199 "Problem when view calls function from another database."
      mysql-test/t/sp.test:
        Add a test case for Bug#17199 "Problem when view calls function from another
        database." and Bug#18444 "Fully qualified stored function names don't work
        correctly in SELECT statements". Test a complementary problem.
      sql/item_strfunc.cc:
        Touch the code that reads thd->db (cleanup).
      sql/log_event.cc:
        While we are at it, replace direct access to thd->db with a method.
        Should simplify future conversion of THD::db to LEX_STRING.
      sql/slave.cc:
        While we are at it, replace direct access to thd->db with a method.
        Should simplify future conversion of THD::db to LEX_STRING.
      sql/slave.h:
        Remove a declaration for a method that is used only in one module.
      sql/sp.cc:
        Rewrite sp_use_new_db: this is a cleanup that I needed in order to understand
        this function and ensure that it has no bugs.
      sql/sp.h:
        Add a new declaration for sp_use_new_db (uses LEX_STRINGs) and a comment.
      sql/sp_head.cc:
        - drop sp_name_current_db_new - a creator of sp_name class that was used
        when sp_name was created for an identifier without an explicitly initialized
        database. Now we pass thd->db to constructor of sp_name right in the 
        parser.
        - rewrite sp_head::init_strings: name->m_db is always set now
        - use the new variant of sp_use_new_db
        - we don't need to update thd->db with SP MEM_ROOT pointer anymore when
        parsing a stored procedure, as noone will refer to it (yes!)
      sql/sp_head.h:
        - remove unneded methods and members
      sql/sql_class.h:
        - introduce 3 THD  methods to work with THD::db:
          .set_db to assign the current database
          .reset_db to reset the current database (temporarily) or set it to NULL
          .opt_copy_db_to - to deep-copy thd->db to a pointer if it's not NULL
      sql/sql_db.cc:
        While we are at it, replace direct access to thd->db with a method.
        Should simplify future conversion of THD::db to LEX_STRING.
      sql/sql_insert.cc:
        - replace checks with asserts: table_list->db must be always set in the parser.
      sql/sql_lex.h:
        - add a comment
      sql/sql_parse.cc:
        - implement the invariant described in the changeset comment.
        - remove juggling with lex->sphead in SQLCOM_CREATE_PROCEDURE:
          now db_load_routine uses its own LEX object and doesn't damage the main
          LEX.
        - add DBUG_ASSERT(0) to unused "check_db_used"
      sql/sql_table.cc:
        - replace a check with an assert (table_ident->db)
      sql/sql_trigger.cc:
        While we are at it, replace direct access to thd->db with a method.
        Should simplify future conversion of THD::db to LEX_STRING.
      sql/sql_udf.cc:
        - use thd->set_db instead of direct modification of to thd->db
      sql/sql_view.cc:
        - replace a check with an assert (view->db)
      sql/sql_yacc.yy:
        - make sure that we always copy table->db or name->db or ident->db or
          select_lex->db from thd->db if the former is not set. If thd->db
          is not set but is accessed, return an error.
      sql/tztime.cc:
        - be nice, never copy thd->db by pointer.
      2783fc82
  14. 20 Jun, 2006 1 commit
    • unknown's avatar
      SHOW STATUS does not anymore change local status variables (except... · 45ea5145
      unknown authored
      SHOW STATUS does not anymore change local status variables (except com_show_status). Global status variables are still updated.
      SHOW STATUS are not anymore put in slow query log because of no index usage.
      
      Implemntation done by removing orig_sql_command and moving logic of SHOW STATUS to mysql_excute_command()
      This simplifies code and allows us to remove some if statements all over the code.
      
      Upgraded uc_update_queries[] to sql_command_flags and added more bitmaps to better categorize commands.
      This allowed some overall simplifaction when testing sql_command.
      
      Fixes bugs:
      Bug#10210: running SHOW STATUS increments counters it shouldn't
      Bug#19764: SHOW commands end up in the slow log as table scans
      
      
      mysql-test/r/grant_cache.result:
        Fixed results after SHOW STATUS doesn't anymore affect status variables
      mysql-test/r/information_schema.result:
        Added extra test to cover more code
      mysql-test/r/query_cache.result:
        Remove resuts from previous tests
      mysql-test/r/status.result:
        Added more tests for testing of last_query_cost and how SHOW STATUS affects status variables.
        (Bug#10210)
      mysql-test/r/temp_table.result:
        Fixed results after SHOW STATUS doesn't anymore affect status variables
      mysql-test/r/union.result:
        Fixed results after SHOW STATUS is not logged to slow query log
        (Bug#19764)
      mysql-test/t/events_microsec.test:
        Disable warnings at init
      mysql-test/t/information_schema.test:
        Added extra test to cover more code
      mysql-test/t/query_cache.test:
        Remove resuts from previous tests
      mysql-test/t/status.test:
        Added more tests for testing of last_query_cost and how SHOW STATUS affects status variables.
        (Bug #10210)
      sql/mysql_priv.h:
        Added 'sql_command_flags'
      sql/sql_class.cc:
        New function add_diff_to_status(), used to update global status variables when using SHOW STATUS
      sql/sql_class.h:
        New function 'fill_information_schema_tables()'
        (One could not anymore use fill_derived_tables() for this as only_view_structures() is not relevant for information schema tables)
        Added defines for bit flags in sql_command_flags[]
      sql/sql_lex.cc:
        Remove orig_sql_command
      sql/sql_lex.h:
        Remove orig_sql_command
      sql/sql_parse.cc:
        Rename uc_update_queries -> sql_command_flags.
        Enhanced 'sql_command_flags' to better classify SQL commands
        uc_update_queries[] != 0 is changed to (sql_command_flags[] & CF_CHANGES_DATA)
        lex->orig_sql_command == SQLCOM_END is changed to (sql_command_flags[lex->sql_command] & CF_STATUS_COMMAND) == 0)
        
        Simplify incrementing of thd->status_var.com_stat[] as we don't have to do special handling for SHOW commands.
        
        Split SQLCOM_SELECT handling in mysql_execute_command() to a separate function.
        Added special handling of SHOW STATUS commands in mysql_execute_command() and call common SQLCOM_SELECT handling.
        These changes allows us to easily fix that we save and restore status variables during execution of a SHOW STATUS command.
        Don't log SHOW STATUS commands to slow query log.
        
        This fixes Bug#10210 and Bug#19764 without adding additional 'if' code.
        (The new code is faster than the original as we now have fewer if's than before)
      sql/sql_prepare.cc:
        Clean up prepare-check handling of SQLCOM commands by using sql_command_flags[]
        This simplifes code and ensures that code works even if someone forgets to put a new status commands into the switch statement.
      sql/sql_select.cc:
        Remove special handling of SHOW STATUS.
        (This is now done in SQLCOM_SHOW_STATUS part in mysql_execute_command())
      sql/sql_show.cc:
        Remove orig_sql_command
        Only change sql_command during 'open_normal_and_derived_tables()' (for views) and not for the full duration of generating data.
        Changed 'show status' to use thd->initial_status_var to ensure that the current statement is not affecting the to-be-used values.
        Use thd->fill_information_schema_tables() instead of 'thd->fill_derived_tables()' as the later wrongly checks the value of sql_command.
      sql/sql_yacc.yy:
        Remove usage of orig_sql_command.
        One side effect of this is that we need to test for cursors if the current command is a SELECT or a SHOW command.
      sql/structs.h:
        Updated comment
      45ea5145
  15. 15 Jun, 2006 1 commit
    • unknown's avatar
      Fixed bug#18175: The nest_level counter wasn't decremented for union parts which · ee46c5fb
      unknown authored
      resulted in a wrong error message.
      
      The nest_level counter indicates the depth of nesting for a subselect. It is
      needed to properly resolve aggregate functions in nested subselects. Obviously 
      it shouldn't be incremented for UNION parts because they have the same level of
      nesting. This counter was incremented by 1 in the mysql_new_select() function
      for any new select and wasn't decremented for UNION parts. This resulted in
      wrongly reported error messages.
      
      Now the nest_level counter is decremented by 1 for any union part.
      
      
      mysql-test/t/union.test:
        Added test case for the bug#18175: The nest_level counter wasn't decremented for union parts which
        resulted in a wrong error message.
      mysql-test/r/union.result:
        Added test case for the bug#18175: The nest_level counter wasn't decremented for union parts which
        resulted in a wrong error message.
      sql/sql_yacc.yy:
        Fixed bug#18175: The nest_level counter wasn't decremented for union parts which
        resulted in a wrong error message.
        Now the nest_level counter is decremented by 1 for any union part.
      ee46c5fb
  16. 08 Jun, 2006 1 commit
    • unknown's avatar
      Reorganize, physically the events code · c911d2b9
      unknown authored
      Unify method naming -> create/update/drop_event
      Move class Event_timed to event_timed.h
      class Events is in events.h (renamed from event.h)
      The implementation is in events.cc (renamed from event.h)
      
      
      BitKeeper/deleted/.del-event_executor.cc~f4a4645b973838ab:
        Delete: sql/event_executor.cc
      include/my_time.h:
        add a boundary
      libmysqld/CMakeLists.txt:
        event.cc -> events.cc
      libmysqld/Makefile.am:
        event.cc -> event.cc
      sql/CMakeLists.txt:
        event.cc -> events.cc
      sql/Makefile.am:
        event.cc -> events.cc
        event_priv.h -> events_priv.h
      sql/event_scheduler.cc:
        event.h -> events.h
        add_event -> create_event
        replace_event -> update_event()
        event_timed_compare_q is only used in event_scheduler.cc , so moving it
        from event.cc and making it static
      sql/event_scheduler.h:
        add_event -> create_event
        replace_event -> update_event
      sql/event_timed.cc:
        moved extern interval_type_to_name to mysql_priv.h
      sql/mysql_priv.h:
        moved my_time_compare to time.cc
      sql/mysqld.cc:
      ...
      c911d2b9
  17. 05 Jun, 2006 2 commits
    • unknown's avatar
      Fixed some issues found by valgrind · 3e96dc52
      unknown authored
      (one testcase, one memory leak and some accesses to not initialized memory)
      
      
      mysql-test/r/events_scheduling.result:
        Changed event timer to two seconds to not get problems with slow system or when running with valgrind
      mysql-test/t/events_scheduling.test:
        Changed event timer to two seconds to not get problems with slow system or when running with valgrind
      mysql-test/valgrind.supp:
        Avoid purify warnings from DBUG library (safe to do)
      sql/ha_berkeley.cc:
        Fix problem with not freed memory
      sql/sql_class.cc:
        Ensure that row_count is initalized (as we otherwise may access it uninitialized)
      sql/sql_show.cc:
        c_ptr -> ptr to avoid accessing not initialized memory
      sql/sql_yacc.yy:
        Fix to not access not initialized memory
      sql/table.cc:
        Fix to not access not initialized memory
      sql/time.cc:
        Fix to not access not initialized memory
      3e96dc52
    • unknown's avatar
      BUG#16002: Handle unsigned integer partition functions · 16469b5a
      unknown authored
      mysql-test/r/partition.result:
        Added new test cases
      mysql-test/r/partition_error.result:
        Fixed test case
      mysql-test/t/partition.test:
        Added new test cases
      mysql-test/t/partition_error.test:
        Fixed test case
      sql/ha_partition.cc:
        Review fixes
      sql/partition_element.h:
        Review fixes
      sql/partition_info.cc:
        Review fixes
      sql/share/errmsg.txt:
        Review fixes
      sql/sql_partition.cc:
        Review fixes
      sql/sql_yacc.yy:
        Enabled possibility to use (MAXVALUE) as well as MAXVALUE.
      16469b5a
  18. 28 May, 2006 1 commit
    • unknown's avatar
      handlerton cleanup: · 0aad8083
      unknown authored
      duplicate fields removed, st_mysql_storage_engine added to support
      run-time handlerton initialization (no compiler warnings), handler API
      is now tied to MySQL version, handlerton->plugin mapping added
      (slot-based), dummy default_hton removed, plugin-type-specific
      initialization generalized, built-in plugins are now initialized too,
      --default-storage-engine no longer needs a list of storage engines
      in handle_options().
      
      mysql-test-run.pl bugfixes
      
      
      include/mysql/plugin.h:
        added st_mysql_storage_engine
        made handlerton tied to MySQL version
      mysql-test/mysql-test-run.pl:
        bugfixes (umask, --no-defaults)
      mysql-test/r/ndb_dd_basic.result:
        update error message
      mysql-test/t/partition_mgm_err2.test:
        fix typo
      sql/ha_berkeley.cc:
        handlerton cleanup: remove duplicate fields, add st_mysql_storage_engine,
        initialize handlerton run-time to avoid compiler warnings
      sql/ha_berkeley.h:
        handlerton cleanup: remove duplicate fields, add st_mysql_storage_engine,
        initialize handlerton run-time to avoid compiler warnings
      sql/ha_federated.cc:
        handlerton cleanup: remove duplicate fields, add st_mysql_storage_engine,
        initialize handlerton run-time to avoid compiler warnings
      sql/ha_heap.cc:
        handlerton cleanup: remove duplicate fields, add st_mysql_storage_engine,
        initialize handlerton run-time to avoid compiler warnings
      sql/ha_innodb.cc:
        handlerton cleanup: remove duplicate fields, add st_mysql_storage_engine,
        initialize handlerton run-time to avoid compiler warnings
      sql/ha_innodb.h:
        handlerton cleanup: remove duplicate fields, add st_mysql_storage_engine,
        initialize handlerton run-time to avoid compiler warnings
      sql/ha_myisam.cc:
        handlerton cleanup: remove duplicate fields, add st_mysql_storage_engine,
        initialize handlerton run-time to avoid compiler warnings
      sql/ha_myisammrg.cc:
        handlerton cleanup: remove duplicate fields, add st_mysql_storage_engine,
        initialize handlerton run-time to avoid compiler warnings
      sql/ha_ndbcluster.cc:
        handlerton cleanup: remove duplicate fields, add st_mysql_storage_engine,
        initialize handlerton run-time to avoid compiler warnings
      sql/ha_ndbcluster.h:
        handlerton cleanup: remove duplicate fields, add st_mysql_storage_engine,
        initialize handlerton run-time to avoid compiler warnings
      sql/ha_ndbcluster_binlog.cc:
        no 'name' in the handlerton anymore
      sql/ha_partition.cc:
        handlerton cleanup: remove duplicate fields, add st_mysql_storage_engine,
        initialize handlerton run-time to avoid compiler warnings
      sql/handler.cc:
        handlerton cleanup: remove duplicate fields, add st_mysql_storage_engine,
        handlerton->plugin mapping
      sql/handler.h:
        handlerton cleanup: remove duplicate fields
      sql/log.cc:
        handlerton cleanup: remove duplicate fields, add st_mysql_storage_engine,
        initialize handlerton run-time to avoid compiler warnings
      sql/mysql_priv.h:
        handler.h needs plugin.h
      sql/mysqld.cc:
        Convert --default-storage-engine to a handlerton* when
        all storage engines are initialized and not in getopt
      sql/set_var.cc:
        no name in the handlerton anymore
      sql/sql_parse.cc:
        no default_hton anymore
      sql/sql_partition.cc:
        no name in the handlerton anymore
      sql/sql_plugin.cc:
        generalize plugin type-specific initialization.
        initialize built-in plugins too
      sql/sql_plugin.h:
        generalize plugin type-specific initialization.
      sql/sql_show.cc:
        st_mysql_storage_engine structure
        no name in the handlerton anymore
      sql/sql_table.cc:
        no name in the handlerton anymore
        no default_hton anymore
      sql/sql_tablespace.cc:
        no name in the handlerton anymore
        no default_hton anymore
      sql/sql_yacc.yy:
        no default_hton anymore
        issue "unknown storage engine" warning where it is discovered
      storage/archive/ha_archive.cc:
        handlerton cleanup: remove duplicate fields, add st_mysql_storage_engine,
        initialize handlerton run-time to avoid compiler warnings
      storage/archive/ha_archive.h:
        handlerton cleanup: remove duplicate fields, add st_mysql_storage_engine,
        initialize handlerton run-time to avoid compiler warnings
      storage/blackhole/ha_blackhole.cc:
        handlerton cleanup: remove duplicate fields, add st_mysql_storage_engine,
        initialize handlerton run-time to avoid compiler warnings
      storage/csv/ha_tina.cc:
        handlerton cleanup: remove duplicate fields, add st_mysql_storage_engine,
        initialize handlerton run-time to avoid compiler warnings
      storage/example/ha_example.cc:
        handlerton cleanup: remove duplicate fields, add st_mysql_storage_engine,
        initialize handlerton run-time to avoid compiler warnings
      0aad8083
  19. 22 May, 2006 1 commit
    • unknown's avatar
      fix for bug #17619 Scheduler race conditions · 6b6a9b76
      unknown authored
      - Scheduler is either initialized at server start or never.
        Starting & stopping is now suspending & resuming.
      - The scheduler has clear OO interface
      - Now all calls to the scheduler are synchronous
      - GLOBAL event_scheduler uses thd::sys_var_tmp (see set_var.cc)
      - External API is encapsulated into class Events
      - Includes fixes for all comments of Kostja's review of 19.05.2005
      
      Starting to merge into 5.1-release (5.1.10) and push
      
      
      BitKeeper/etc/ignore:
        Added libmysqld/event_scheduler.cc to the ignore list
      libmysqld/Makefile.am:
        executor -> scheduler
      mysql-test/r/events.result:
        update result
      mysql-test/r/events_bugs.result:
        update result
      mysql-test/r/events_logs_tests.result:
        update result
      mysql-test/r/events_microsec.result:
        update result
      mysql-test/r/events_scheduling.result:
        update result
      mysql-test/r/events_stress.result:
        update result
      mysql-test/t/disabled.def:
        enable these tests
      mysql-test/t/events.test:
        optimize the test a bit for speed, save some seconds runtime
        remove FULL from SHOW EVENTS
        mostly use I_S.EVENTS
      mysql-test/t/events_bugs.test:
        Skip irrelevant for the current design tests - all events are loaded
        on server startup. Change in mysql.event will be visible on next server start.
        Don't use numeric error codes.
      mysql-test/t/events_logs_tests.test:
        optimize the test a bit for speed
      mysql-test/t/events_microsec.test:
         Skip irrelevant for the current design tests - all events are loaded
            on server startup. Change in mysql.event will be visible on next server start.
            Don't use numeric error codes.
      mysql-test/t/events_scheduling.test:
        broader test
      mysql-test/t/events_stress.test:
        Rework the test to the new architecture of suspending/resuming.
        Use less events, no need for thousands, hundreds is still ok.
      sql/Makefile.am:
        executor -> scheduler
      sql/cmakelists.txt:
        executor -> scheduler
      sql/event.cc:
        - remove todo comments
        - remove unneded evex_queue abstraction functions
        - move events_init() and events_shutdown() from event_executor.cc to here
        - export db_create_event
        - remove evex_load_and_compile_event, part of class Event_scheduler
        - integrate the public interface found in event.h and used by sql_parse.cc
          to use the new class Event_scheduler.
      sql/event.h:
        - add COND_finished so if one thread kills a running event it waits on this
        - export callback event_timed_definer_equal, event_timed_identifier_equal(),
          event_timed_name_equal and event_timed_db_equal()
          to be used by Event_scheduler::drop_matching_events()
        - cleanup event.h
        - encapsulated all external interface into class Events
      sql/event_executor.cc:
        make it empty, will delete after that
      sql/event_priv.h:
        - more things in the private header
        - remove event queue abstraction functions. tightly bind to QUEUE
        - export privately db_drop_event, db_find_event, db_create_event()
        - made change_security_context() and restore_security_context() free functions
      sql/event_timed.cc:
        - fix calculation of time when ENDS is set (STARTS is always set)
        - during Event_timed::compile() set the right Security_ctx. Prevents a crash
              during Event_scheduler::load_events_from_db()
        - add Event_timed::kill_thread()
        - implement event_timed_*_equal()
        - made change_security_context() and restore_security_context() free functions.
        - Comments cleanups
      sql/lex.h:
        new word scheduler for SHOW SCHEDULER STATUS (available only debug builds)
      sql/log.cc:
        move these from event_scheduler.cc
      sql/mysql_priv.h:
        refactor kill_one_thread
        export sql_print_message_func and sql_print_message_handlers
      sql/mysqld.cc:
        In close_connections, called by kill_server() skip the main scheduler
        thread and use events_shutdown() for shutting down the scheduler, in the same
        manner it's done for RPL.
        Add a new value to --event-scheduler :
        0 <- No scheduler available
        1 <- Start with scheduler enabled
        2 <- Start with scheduler suspended
      sql/repl_failsafe.cc:
        refactor thd::system_thread to be an enum
      sql/set_var.cc:
        move sys_var_event_executor::update() to set_var.cc
        executor -> scheduler
        use thd::sys_var_tmp
      sql/set_var.h:
        executor -> scheduler
      sql/share/errmsg.txt:
        3 new error messages
      sql/sql_class.cc:
        refactor thd::system_thread to be an enum . more type-safety
      sql/sql_class.h:
        refactor thd::system_thread to be an enum . more type-safety
      sql/sql_db.cc:
        get the error from evex_drop_schema_events
      sql/sql_error.h:
        export warning_level_names
      sql/sql_lex.h:
        new command SHOW SCHEDULER STATUS, available only in debug build and
        for debug purposes.
      sql/sql_parse.cc:
        refactor kill_one_thread() -> does the *dirty* work, and sql_kill
        just the reporting.
        add handler for SQLCOM_SHOW_SCHEDULER_STATUS
      sql/sql_show.cc:
        fix verbosity handling (this will be obsoleted anyway by the fix for 17394).
      sql/sql_yacc.yy:
        remove FULL from SHOW EVENTS
        add SHOW SCHEDULER STATUS in debug builds
      sql/table.cc:
        Fix valgrind warning.
      6b6a9b76
  20. 13 May, 2006 1 commit
    • unknown's avatar
      Fixed bug #19396: a crash for a an outer join operation · 6e467f88
      unknown authored
      over two views when using syntax with curly braces.
      Each outer join operation must be placed in a separate
      nest. This was not done when the syntax with curly braces
      was used. In some cases, in particular, for queries with outer
      join operation over views it could cause a crash.
      
      
      mysql-test/r/join_outer.result:
        Added a test case for bug #19396.
      mysql-test/t/join_outer.test:
        Added a test case for bug #19396.
      6e467f88
  21. 12 May, 2006 1 commit
    • unknown's avatar
      Bug#14635: Accept NEW.x as INOUT parameters to stored procedures · eb567121
      unknown authored
      from within triggers
      
      Add support for passing NEW.x as INOUT and OUT parameters to stored
      procedures.  Passing NEW.x as INOUT parameter requires SELECT and
      UPDATE privileges on that column, and passing it as OUT parameter
      requires only UPDATE privilege.
      
      
      mysql-test/r/sp-error.result:
        Update the result for new message.
      mysql-test/r/trigger-grant.result:
        Add result for bug#14635.
      mysql-test/r/trigger.result:
        Add result for bug#14635.
      mysql-test/t/trigger-grant.test:
        Add test case for bug#14635.
      mysql-test/t/trigger.test:
        Add test case for bug#14635.
      sql/item.cc:
        Add implementations of set_value() and set_required_privilege() methods
        of Settable_routine_parameter interface.
        
        Use Item_trigger_field::want_privilege instead of
        Item_trigger_field::access_type.
        
        Reset privileges on Item_trigger_field::cleanup().
      sql/item.h:
        Add interface class Settable_routine_parameter and interface query
        method to Item class.  Item_splocal and Item_trigger_field implement
        this interface.
        
        For Item_trigger_field:
         - add read_only attribute and is_read_only() method.
         - remove access_type and add original_privilege and want_privilege
           instead.
         - add set_value() method.
         - add reset_privilege() method.
      sql/item_func.cc:
        Add implementations of set_value() method of Settable_routine_parameter
        interface.
      sql/item_func.h:
        Item_func_get_user_var implements Settable_routine_parameter interface.
      sql/share/errmsg.txt:
        Update english ER_SP_NOT_VAR_ARG message.
      sql/sp_head.cc:
        Use Settable_routine_parameter interface for parameter update.
      sql/sql_yacc.yy:
        Set read_only and want_privilege members in Item_trigger_field
        appropriately.  For NEW.x trigger variable used in left-hand-side
        of SET statement the latter is set to UPDATE_ACL, otherwise it is
        set to SELECT_ACL (but see Item_trigger_field::set_required_privilege(),
        where it may be updated to different value).
      eb567121
  22. 08 May, 2006 1 commit
  23. 03 May, 2006 4 commits
    • unknown's avatar
      Cleanups after review of WL#602 · c2593d33
      unknown authored
      Fixed warnings from test suite
      Some fixes in mysql-test-run script to catch more warnings
      
      
      mysql-test/lib/mtr_report.pl:
        Catch more warnings
      mysql-test/mysql-test-run.sh:
        Catch warnings from mysqld
      mysql-test/t/mysqldump.test:
        Add key_block_size to catch future changes in information schema
      mysys/errors.c:
        Ensure that mysql-test-run catches if we call my_close() too many times
      sql/handler.cc:
        Initialize all elements
      sql/log.cc:
        true -> TRUE
      sql/sql_class.h:
        Review change: key_info -> key_create_info
      sql/sql_lex.h:
        Review change: key_info -> key_create_info
      sql/sql_table.cc:
        Review change: key_info -> key_create_info
        Don't call mysql_close() if init_ddl_log is not called.
        Better error handling in init_ddl_log
      sql/sql_yacc.yy:
        Review change: key_info -> key_create_info
      c2593d33
    • unknown's avatar
      Bug#15463: EXPLAIN SELECT..INTO hangs the client (QB, command line) · 0da39e97
      unknown authored
      There were two distict bugs: parse error was returned for valid
      statement and that error wasn't reported to the client.
      
      The fix ensures that EXPLAIN SELECT..INTO is accepted by parser and any
      other parse error will be reported to the client.
      
      
      mysql-test/r/explain.result:
        Add result for bug#15463.
      mysql-test/t/explain.test:
        Add test case for bug#15463.
      sql/sql_parse.cc:
        Assert that if parsing error has occured then apropriate error message
        has been pushed into error stack.
      sql/sql_yacc.yy:
        If there is no lex->result in select_var_ident rule, then we have
        to be in DESCRIBE mode.
      0da39e97
    • unknown's avatar
      Added support for key_block_size for key and table level (WL#602) · 0ab1abad
      unknown authored
      Added support for key_block_size to MyISAM.
      Simplify interface to 'new Key' to make it easier to add new key options.
      mysqld option --new is used to define where key options are printed.
      (In 5.3 we should move all key options to after key part definition to avoid problem with reserved names)
      Fixed some compiler warnings and a memory leak in ssl
      
      
      include/my_base.h:
        Added flag to check if block size for key was secified
      include/my_sys.h:
        Added new support function to round up to a power of two
      include/myisam.h:
        Rename block_size -> block_size_index to avoid confusion with 'block_size'
      include/violite.h:
        Added function to free memory after new_VioSSLAcceptorFd
        (Will rename all vio_ssl functions in a future changeset)
      mysql-test/mysql-test-run.pl:
        Don't print port number info when we use --extern
      mysql-test/r/myisam.result:
        Added test for key_block_size
      mysql-test/t/myisam.test:
        Added test for key_block_size
      mysys/mf_keycache.c:
        Simplify code
      mysys/my_bit.c:
        Added new support function to round up to a power of two
      sql/ha_myisam.cc:
        Tell MyISAM to use the specified key_block_size
        MyISAM also updates the global key_block_size from the used values.
      sql/handler.cc:
        Added 'default_key_create_info' to be used as 'dummy' argument to 'new Key'
      sql/handler.h:
        Added KEY_CREATE_INFO, to be used as for general options for KEY's
      sql/item_func.h:
        Removed compiler warning
      sql/lex.h:
        Added new symbol
      sql/mysqld.cc:
        Fixed memory leak in ssl (new_VioSSLAcceptorFd)
      sql/sql_class.h:
        Change 'new Key' to use KEY_CREATE_INFO instead of 'algoritm', parser, key_page_size.
        This makes it easier to add new key options in the future.
      sql/sql_lex.h:
        Added key create options
      sql/sql_parse.cc:
        Use new interface to 'new Key'
      sql/sql_show.cc:
        Added support for key_block_size
        If --new is used, key options are printed after the key part definition.
      sql/sql_table.cc:
        Use new interface to 'new Key'
        Add support for key_block_size
      sql/sql_yacc.yy:
        Add support for key_block_size
        Allow key options before and after key_parts (In future they should be always after the key_part defintion)
        Use new interface to 'new Key'
      sql/structs.h:
        Added block_size to keys
      sql/table.cc:
        Remmeber and read key_block_size for table and key level
      sql/table.h:
        Added default key_block_size for table
      sql/unireg.cc:
        Remember key_block_size for key
      storage/myisam/ft_eval.c:
        Set block_length to 0 to get default key page size
      storage/myisam/ft_test1.c:
        Set block_length to 0 to get default key page size
      storage/myisam/mi_check.c:
        block_size -> block_size_index
      storage/myisam/mi_create.c:
        Added support for block size per key.
        Block size is rounded up to next power of two and enforced between MIN and MAX KEY_BLOCK_LENGTH.
        Align start of key block to start at an even offset of max_key_block_length to ensure key cache works good if all key pages are of same size.
      storage/myisam/mi_open.c:
        block_size -> block_size_index
      storage/myisam/mi_page.c:
        block_size -> block_size_index
      storage/myisam/mi_test1.c:
        Set block_length to 0 to get default key page size
      storage/myisam/mi_test2.c:
        Set block_length to 0 to get default key page size
      storage/myisam/mi_test3.c:
        Set block_length to 0 to get default key page size
      storage/myisam/myisamdef.h:
        block_size -> block_size_index to avoid confusion with 'block_size' in MySQL
        Added block_size as argument to MI_BLOCK_SIZE
        Added missing prototypes to get rid of compiler warnings
      storage/myisam/myisampack.c:
        Removed compiler warning
        block_size -> block_size_index
      vio/viosslfactories.c:
        Fixed memory leak in ssl (new_VioSSLAcceptorFd)
      mysql-test/r/myisam-system.result:
        New BitKeeper file ``mysql-test/r/myisam-system.result''
      mysql-test/t/myisam-system.test:
        New BitKeeper file ``mysql-test/t/myisam-system.test''
      0ab1abad
    • unknown's avatar
      Added new show contributors command. · aeb39dd3
      unknown authored
      sql/lex.h:
        Additions for show contributors
      sql/mysql_priv.h:
        Show contributors addition
      sql/sp_head.cc:
        Added for show contributors
      sql/sql_lex.h:
        Adding contributors addition
      sql/sql_parse.cc:
        Execute for add contributors
      sql/sql_show.cc:
        Adding show contributors
      sql/sql_yacc.yy:
        Show contributors additio
      mysql-test/r/contributors.result:
        New BitKeeper file ``mysql-test/r/contributors.result''
      mysql-test/t/contributors.test:
        New BitKeeper file ``mysql-test/t/contributors.test''
      sql/contributors.h:
        New BitKeeper file ``sql/contributors.h''
      aeb39dd3
  24. 25 Apr, 2006 1 commit
    • unknown's avatar
      Post-merge fixes from 5.0. · 0634ff6f
      unknown authored
      mysql-test/extra/rpl_tests/rpl_insert_id.test:
        Post-merge fix. Added new 5.0 test case manually.
      sql/sql_yacc.yy:
        Post-merge fix. Removed GOTO/LABEL from parser.
      0634ff6f
  25. 24 Apr, 2006 1 commit
    • unknown's avatar
      bug#18604 create logfile for MyISAM tables · de5f77fd
      unknown authored
      - changed alter tablespace truct to work with handlerton pointer (to avoid crash in parser on unknown db type"
      - pushed warnings when default storage engine is used and/or tablespace stuff is not supported by storage engine
      
      
      mysql-test/r/ndb_dd_basic.result:
        bug#18604 create logfile for MyISAM tables
      mysql-test/t/ndb_dd_basic.test:
        bug#18604 create logfile for MyISAM tables
      de5f77fd
  26. 21 Apr, 2006 2 commits
    • unknown's avatar
      Post merge fixes · cb91f31e
      unknown authored
      cb91f31e
    • unknown's avatar
      Fixed bug #18767. · 3dd2f261
      unknown authored
      The bug caused wrong result sets for union constructs of the form
      (SELECT ... ORDER BY order_list1 [LIMIT n]) ORDER BY order_list2.
      For such queries order lists were concatenated and limit clause was
      completely neglected. 
      
      
      mysql-test/r/order_by.result:
        Added a test case for bug #18767.
      mysql-test/t/order_by.test:
        Added a test case for bug #18767.
      sql/sql_lex.h:
        Fixed bug #18767.
        Placed the code the created a fake SELECT_LEX into a separate function.
      sql/sql_parse.cc:
        Fixed bug #18767.
        Placed the code the created a fake SELECT_LEX into a separate function.
      sql/sql_select.cc:
        Fixed bug #18767.
        Changed the condition on which a SELECT is treated as part of a UNION.
        The SELECT in 
        (SELECT ... ORDER BY order_list1 [LIMIT n]) ORDER BY order_list2 
        now is handled in the same way as the first SELECT in a UNION
        sequence.
      sql/sql_union.cc:
        Fixed bug #18767.
        Changed the condition at which a SELECT is treated as part of a UNION.
        The SELECT in 
        (SELECT ... ORDER BY order_list1 [LIMIT n]) ORDER BY order_list2 
        now is handled in the same way as the first SELECT in a UNION
        sequence.
      sql/sql_yacc.yy:
        Fixed bug #18767.
        Changed the condition at which a SELECT is treated as part of a UNION.
        The SELECT in 
        (SELECT ... ORDER BY order_list1 [LIMIT n]) ORDER BY order_list2 
        now is handled in the same way as the first SELECT in a UNION
        sequence. In the same way is handled the SELECT in
        (SELECT ... LIMIT n) ORDER BY order list.
        Yet if there is neither ORDER BY nor LIMIT in the single-select
        union construct
        (SELECT ...) ORDER BY order_list
        then it is still handled as simple select with an order clause.
      3dd2f261
  27. 18 Apr, 2006 2 commits
    • unknown's avatar
      Fixed BUG#18949: Test case sp-goto is disabled · a6ae67c4
      unknown authored
        Removed sp-goto.test, sp-goto.result and all (disabled) GOTO code.
        Also removed some related code that's not needed any more (no possible
        unresolved label references any more, so no need to check for them).
        NB: Keeping the ER_SP_GOTO_IN_HNDLR in errmsg.txt; it might become useful
            in the future, and removing it (and thus re-enumerating error codes)
            might upset things. (Anything referring to explicit error codes.)
      
      
      BitKeeper/deleted/.del-sp-goto.result~f343103c63f64b7a:
        Delete: mysql-test/r/sp-goto.result
      BitKeeper/deleted/.del-sp-goto.test~5054d3f729692d3d:
        Delete: mysql-test/t/sp-goto.test
      mysql-test/t/disabled.def:
        sp-goto.test no longer exists.
      sql/lex.h:
        Removed (disabled) GOTO definitions.
      sql/sp_head.cc:
        Removed sp_head::check_backpatch() and simplified sp_head::backpatch().
        Without GOTO, unresolved label references are not possible, so no need
        to check for them.
      sql/sp_head.h:
        Removed sp_head::check_backpatch(). (Not needed with no GOTO)
      sql/sp_pcontext.cc:
        SP_LAB_GOTO was renamed to SP_LAB_IMPL
      sql/sp_pcontext.h:
        Removed SP_LAB_REF (no longer needed) and renamed SP_LAB_GOTO
        to SP_LAB_IMPL, since it's only used for implicit labels now.
      sql/sql_yacc.yy:
        Removed GOTO symbols and (disabled) code, and the no longer needed
        sp_head::check_backpatch() calls.
      a6ae67c4
    • unknown's avatar
      BUG#16002: Make partition functions that are unsigned work properly · 41395ba7
      unknown authored
      mysql-test/r/partition.result:
        A number of new test cases for unsigned partition functions
      mysql-test/r/partition_error.result:
        A number of new test cases for unsigned partition functions
      mysql-test/r/partition_range.result:
        A number of new test cases for unsigned partition functions
      mysql-test/t/partition.test:
        A number of new test cases for unsigned partition functions
      mysql-test/t/partition_error.test:
        A number of new test cases for unsigned partition functions
      mysql-test/t/partition_range.test:
        A number of new test cases for unsigned partition functions
      sql/ha_partition.cc:
        Error message for no partition found needs to take signed/unsigned into account when printing erroneus value
      sql/partition_element.h:
        Introduced signed_flag and max_value flag on partition elements
        Also list is now a list of a struct rather than simply longlong values
        Small rearranges of order
      sql/partition_info.cc:
        Introduced signed_flag and max_value flag on partition elements
        Also list is now a list of a struct rather than simply longlong values
        Small rearranges of order
        Lots of new code to handle checks of proper definition of table when
        partition function is unsigned
      sql/partition_info.h:
        Mostly rearrangement of code and some addition of a THD object in check_partition_info call
        plus a new method for comparing unsigned values
      sql/share/errmsg.txt:
        Negative values not ok for unsigned partition functions
      sql/sql_partition.cc:
        Fixed a multi-thread bug (when defining several partitioned tables in parallel)
        New code to generate partition syntax that takes into account sign of constants.
        Made function fix_fields_part_func more reusable.
        Fixed a number of get_partition_id functions for range and list and similar functions
        for partition pruning code.
        Unfortunately fairly much duplication of code with just small changes.
      sql/sql_partition.h:
        New function headers
      sql/sql_show.cc:
        Changed list of values for LIST partitioned tables
        Also fixed printing of unsigned values in INFORMATION SCHEMA for partitioned table
      sql/sql_table.cc:
        Fixed for new interface
      sql/sql_yacc.yy:
        Moved definition of struct to partition_element.h
        Added code to keep track of sign of constants in
        RANGE and LIST partitions
      sql/table.cc:
        Fixed for new interface
      41395ba7
  28. 13 Apr, 2006 1 commit
    • unknown's avatar
      WL#3201 · bf4731ec
      unknown authored
        " Configure support for server plugins "
      
      
      storage/blackhole/ha_blackhole.h:
        Rename: sql/ha_blackhole.h -> storage/blackhole/ha_blackhole.h
      BitKeeper/deleted/.del-storage.m4~24bf2fffdaa328ad:
        Delete: config/ac-macros/storage.m4
      BitKeeper/deleted/.del-ha_archive.m4~a07fac7110b39294:
        Delete: config/ac-macros/ha_archive.m4
      BitKeeper/deleted/.del-ha_blackhole.m4~8ed06eb91f6420ed:
        Delete: config/ac-macros/ha_blackhole.m4
      BitKeeper/deleted/.del-ha_example.m4~1dfb268163297708:
        Delete: config/ac-macros/ha_example.m4
      BitKeeper/deleted/.del-ha_federated.m4~7acddd58286acfd6:
        Delete: config/ac-macros/ha_federated.m4
      BitKeeper/deleted/.del-ha_innodb.m4~6f141fb5b80c1f39:
        Delete: config/ac-macros/ha_innodb.m4
      BitKeeper/deleted/.del-ha_partition.m4~bc57067550be5f89:
        Delete: config/ac-macros/ha_partition.m4
      BitKeeper/deleted/.del-ha_tina.m4~f658506ebbc113ca:
        Delete: config/ac-macros/ha_tina.m4
      BitKeeper/deleted/.del-handlerton.cc.in~377156e7b06067cc:
        Delete: sql/handlerton.cc.in
      BitKeeper/deleted/.del-handlerton-win.cc~322a7e59507976df:
        Delete: sql/handlerton-win.cc
      BUILD/SETUP.sh:
        WL#3201
          Changes in configure arguments
      Makefile.am:
        WL#3201
          changes in build subst names
      config/ac-macros/ha_berkeley.m4:
        WL#3201
          remove unused variable
          Makefile is always made
      config/ac-macros/ha_ndbcluster.m4:
        WL#3201
          remove unused variables
          Split big macro
      configure.in:
        WL#3201
          out with storage.m4, in with plugins.m4
          change how plugins are declared
          include makefiles, remove handlerton.cc, add sql_builtin.cc
      include/mysql/plugin.h:
        WL#3201
          support static and dynamic build - MYSQL_DYNAMIC_PLUGIN
      libmysqld/Makefile.am:
        WL#3201
          Storage engine files still left in sql subdir are not conditionally
          compiled. Should move them out soon,
      plugin/Makefile.am:
        WL#3201
          update makefile
      plugin/fulltext/Makefile.am:
        WL#3201
          update makefile
      plugin/fulltext/plugin_example.c:
        WL#3201
          change to mysql_declare_plugin macro
      sql/Makefile.am:
        WL#3201
          Storage engine files still left in sql subdir are not conditionally
          compiled. Should move them out soon,
      sql/ha_berkeley.cc:
        WL#3201
          make into a plugin
          conditionally compile content
      sql/ha_federated.cc:
        WL#3201
          make into a plugin
          conditionally compile content
      sql/ha_heap.cc:
        WL#3201
          make into a plugin
      sql/ha_innodb.cc:
        WL#3201
          make into a plugin
          conditionally compile content
      sql/ha_myisam.cc:
        WL#3201
          make into a plugin
      sql/ha_myisammrg.cc:
        WL#3201
          make into a plugin
      sql/ha_ndbcluster.cc:
        WL#3201
          make into a plugin
          conditionally compile content
      sql/ha_ndbcluster_binlog.cc:
        WL#3201
          make into a plugin
          conditionally compile content
      sql/ha_partition.cc:
        WL#3201
          make into a plugin
          conditionally compile content
      sql/handler.cc:
        WL#3201
          Simplify how storage engines are found by db_type
          (hopefully we can get rid of it soon)
          Code cleanup
      sql/handler.h:
        WL#3201
          new DB_TYPE_FIRST_DYNAMIC
          new func ha_finalize_handlerton()
          remove ha_register_builtin_plugins()
      sql/log.cc:
        WL#3201
          make into a plugin
      sql/mysqld.cc:
        WL#3201
          remove ha_register_builtin_plugins()
          alter init order so that storage engines are initialized before first use
      sql/partition_info.cc:
        WL#3201
          conditionally compile content
      sql/sql_delete.cc:
        WL#3201
          conditionally include ha_innodb.h
      sql/sql_plugin.cc:
        WL#3201
          All compiled in plugins are in mysqld_builtins[]
          add funcs for plugin finalization
          install builtin plugins on initialization
      sql/sql_show.cc:
        WL#3201
          Fix to use plugin_foreach()
      sql/sql_yacc.yy:
        WL#3201
          SHOW FULL PLUGIN
      storage/archive/Makefile.am:
        WL#3201
          setup as plugin makefile
      storage/archive/ha_archive.cc:
        WL#3201
          Convert into a plugin
      storage/archive/ha_archive.h:
        WL#3201
          azlib.h now in local dir
      storage/blackhole/ha_blackhole.cc:
        WL#3201
          convert into a plugin
      storage/csv/Makefile.am:
        WL#3201
          setup as plugin makefile
      storage/csv/ha_tina.cc:
        WL#3201
          remove conditional compilation on MYSQL_PLUGIN
          mysql_declare_plugin macro change
      storage/example/Makefile.am:
        WL#3201
          fix as new-style plugin makefile
      storage/example/ha_example.cc:
        WL#3201
          remove conditional compilation on MYSQL_PLUGIN
          mysql_declare_plugin macro change
      storage/innobase/Makefile.am:
        WL#3201
          Lets make life easier and reduce innodb into a single library file
      config/ac-macros/plugins.m4:
        New BitKeeper file ``config/ac-macros/plugins.m4''
      sql/sql_builtin.cc.in:
        New BitKeeper file ``sql/sql_builtin.cc.in''
      storage/blackhole/Makefile.am:
        New BitKeeper file ``storage/blackhole/Makefile.am''
      bf4731ec
  29. 12 Apr, 2006 1 commit
    • unknown's avatar
      #BUG18715 create view with replicate*ignore-table · f5bdee23
      unknown authored
      Fixed in parser. rpl_view gained no changes but rpl_view-slave.opt.
      
      
      sql/sql_yacc.yy:
        UPDATING option for create/alter view is added for tables_ok to finds the view's
        TABLE_LIST.updating as true. FIXME: Regarding to UPDATING option `create view' should not have
        any difference from `create table'.
      mysql-test/t/rpl_view-slave.opt:
        The option is needed to force slave executes tables_ok which must return OK in conditions of this tests (no table foo is used.
      f5bdee23
  30. 11 Apr, 2006 1 commit
    • unknown's avatar
      BUG#18752: Also handle NULL values in VALUES LESS THAN · 1073c5bf
      unknown authored
      mysql-test/r/partition.result:
        Added test case to verify that VALUES LESS THAN (NULL) isn't allowed
      mysql-test/t/partition.test:
        Added test case to verify that VALUES LESS THAN (NULL) isn't allowed
      sql/share/errmsg.txt:
        Added new error message
      sql/sql_yacc.yy:
        Added error check for null value
      1073c5bf
  31. 10 Apr, 2006 1 commit
    • unknown's avatar
      BUG#18750: Various problems with partition names, quotation marks · e54a0fc7
      unknown authored
      mysql-test/r/partition.result:
        Added new test cases
      mysql-test/t/partition.test:
        Added new test cases
      sql/partition_info.cc:
        Check partition names that they don't have trailing spaces
      sql/share/errmsg.txt:
        Added error code for wrong partition names
      sql/sql_partition.cc:
        New method to add partition name strings, ignore OPTION_SHOW_QUOTE_CREATE
      sql/sql_show.cc:
        require_quotes had a bug with identifiers that consisted of only digits,
        these are allowed identifiers but must be quoted and require_quote didn't
        tell this.
      sql/sql_yacc.yy:
        Partition names should identifers and not ident_or_text
      e54a0fc7
  32. 07 Apr, 2006 1 commit
    • unknown's avatar
      Renaming sp_pcontext members and methods; less cryptic and more consistent. · 313ed85e
      unknown authored
      Also added comments, and fixing some coding style (mostly in comments too).
      There are no functional changes, so no tests or documentation needed.
      (This was originally part of a bugfix, but it was decided to not include this
       in that patch; instead it's done separately.)
      
      
      sql/sp_head.cc:
        Renaming sp_pcontext members and methods; less cryptic and more consistent.
      sql/sp_head.h:
        Renaming sp_pcontext members and methods; less cryptic and more consistent.
      sql/sp_pcontext.cc:
        Renaming sp_pcontext members and methods; less cryptic and more consistent.
        Also added comments, and fixing some coding style (mostly in comments too).
      sql/sp_pcontext.h:
        Renaming sp_pcontext members and methods; less cryptic and more consistent.
        Also added comments, and fixing some coding style (mostly in comments too).
      sql/sp_rcontext.cc:
        Renaming sp_pcontext members and methods; less cryptic and more consistent.
      sql/sp_rcontext.h:
        Renaming sp_pcontext members and methods; less cryptic and more consistent.
      sql/sql_yacc.yy:
        Renaming sp_pcontext members and methods; less cryptic and more consistent.
      313ed85e