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  1. 23 Aug, 2006 1 commit
    • unknown's avatar
      Bug #20402: DROP USER failure logged as ERROR rather than WARNING · 5ae8a3e8
      unknown authored
      Remove some sql_print_error() calls which were triggered by user error (i.e., not server-level events at all).
      
      Also, convert an sql_print_error -> sql_print_information for a non-error server event.
      
      
      sql/slave.cc:
        Change sql_print_error to sql_print_information for non-error status message.
      sql/sql_acl.cc:
        Remove sql_print_error calls for events which are not server errors
      5ae8a3e8
  2. 22 Aug, 2006 1 commit
    • unknown's avatar
      Bug#20411: "GRANT ... REQUIRE ISSUER nnn AND SUBJECT mmm" fails to require both · 9359ac1a
      unknown authored
      when X.509 subject was required for a connect, we tested whether it was the right
      one, but did not refuse the connexion if not. fixed.
      
      (corrected CS now --replace_results socket-path)
      
      
      mysql-test/r/openssl_1.result:
        Bug#20411: "GRANT ... REQUIRE ISSUER nnn AND SUBJECT mmm" fails to require both
        
        test not only whether we can connect with a correct X.509 subject when one is
        required, but also assure that we can't without one.
      mysql-test/t/openssl_1.test:
        Bug#20411: "GRANT ... REQUIRE ISSUER nnn AND SUBJECT mmm" fails to require both
        
        test not only whether we can connect with a correct X.509 subject when one is
        required, but also assure that we can't without one.
      sql/sql_acl.cc:
        Bug#20411: "GRANT ... REQUIRE ISSUER nnn AND SUBJECT mmm" fails to require both
        
        actually refuse connexion if X.509 is required, but does not match. kudos to Al Smith.
      9359ac1a
  3. 16 Aug, 2006 1 commit
  4. 02 Aug, 2006 1 commit
    • unknown's avatar
      Bug#18775 - Temporary table from alter table visible to other threads · 4cf97d4a
      unknown authored
      Continued implementation of WL#1324 (table name to filename encoding)
      
      The intermediate (not temporary) files of the new table
      during ALTER TABLE was visible for SHOW TABLES. These
      intermediate files are copies of the original table with
      the changes done by ALTER TABLE. After all the data is
      copied over from the original table, these files are renamed 
      to the original tables file names. So they are not temporary 
      files. They persist after ALTER TABLE, but just with another 
      name.
      
      In 5.0 the intermediate files are invisible for SHOW TABLES
      because all file names beginning with "#sql" were suppressed.
      
      This failed since 5.1.6 because even temporary table names were
      converted when making file names from them. The prefix became
      converted to "@0023sql". Converting the prefix during SHOW TABLES
      would suppress the listing of user tables that start with "#sql".
      
      The solution of the problem is to continue the implementation of
      the table name to file name conversion feature. One requirement
      is to suppress the conversion for temporary table names.
      
      This change is straightforward for real temporary tables as there
      is a function that creates temporary file names.
      
      But the generated path names are located in TMPDIR and have no
      relation to the internal table name. This cannot be used for
      ALTER TABLE. Its intermediate files need to be in the same
      directory as the old table files. And it is necessary to be
      able to deduce the same path from the same table name repeatedly.
      
      Consequently the intermediate table files must be handled like normal
      tables. Their internal names shall start with tmp_file_prefix
      (#sql) and they shall not be converted like normal table names.
      
      I added a flags parameter to all relevant functions that are
      called from ALTER TABLE. It is used to suppress the conversion
      for the intermediate table files.
      
      The outcome is that the suppression of #sql in SHOW TABLES
      works again. It does not suppress user tables as these are
      converted to @0023sql on file level.
      
      This patch does also fix ALTER TABLE ... RENAME, which could not 
      rename a table with non-ASCII characters in its name.
      
      It does also fix the problem that a user could create a table like
      `#sql-xxxx-yyyy`, where xxxx is mysqld's pid and yyyy is the thread
      ID of some other thread, which prevented this thread from running 
      ALTER TABLE.
      
      Some of the above problems are mentioned in Bug 1405, which can
      be closed with this patch.
      
      This patch does also contain some minor fixes for other forgotten
      conversions. Still known problems are reported as bugs 21370,
      21373, and 21387.
      
      
      mysql-test/r/alter_table.result:
        Bug#18775 - Temporary table from alter table visible to other threads
        Continued implementation of WL#1324 (table name to filename encoding)
        Added test results.
      mysql-test/r/backup.result:
        Bug#18775 - Temporary table from alter table visible to other threads
        Continued implementation of WL#1324 (table name to filename encoding)
        Added test results.
      mysql-test/r/repair.result:
        Bug#18775 - Temporary table from alter table visible to other threads
        Continued implementation of WL#1324 (table name to filename encoding)
        Added test results.
      mysql-test/t/alter_table.test:
        Bug#18775 - Temporary table from alter table visible to other threads
        Continued implementation of WL#1324 (table name to filename encoding)
        Added test cases.
      mysql-test/t/backup.test:
        Bug#18775 - Temporary table from alter table visible to other threads
        Continued implementation of WL#1324 (table name to filename encoding)
        Added test cases.
      mysql-test/t/repair.test:
        Bug#18775 - Temporary table from alter table visible to other threads
        Continued implementation of WL#1324 (table name to filename encoding)
        Added a test case.
      sql/ha_myisam.cc:
        Bug#18775 - Temporary table from alter table visible to other threads
        Continued implementation of WL#1324 (table name to filename encoding)
        Added missing table name mapping calls to backup() and restore().
      sql/ha_myisammrg.cc:
        Bug#18775 - Temporary table from alter table visible to other threads
        Continued implementation of WL#1324 (table name to filename encoding)
        Added an zero argument for the new 'flags' parameter.
      sql/ha_ndbcluster.cc:
        Bug#18775 - Temporary table from alter table visible to other threads
        Continued implementation of WL#1324 (table name to filename encoding)
        Added an zero argument for the new 'flags' parameter.
      sql/ha_ndbcluster_binlog.cc:
        Bug#18775 - Temporary table from alter table visible to other threads
        Continued implementation of WL#1324 (table name to filename encoding)
        Added an zero argument for the new 'flags' parameter.
      sql/ha_ndbcluster_binlog.h:
        Bug#18775 - Temporary table from alter table visible to other threads
        Continued implementation of WL#1324 (table name to filename encoding)
        Removed unnecessary check for wrong temp file prefix.
      sql/mysql_priv.h:
        Bug#18775 - Temporary table from alter table visible to other threads
        Continued implementation of WL#1324 (table name to filename encoding)
        Extended quick_rm_table(), mysql_rename_table(), and
        build_table_filename() by an flags argument, which can indicate
        temporary table names that should not be converted.
        Added symbolic flag values.
      sql/sql_acl.cc:
        Bug#18775 - Temporary table from alter table visible to other threads
        Continued implementation of WL#1324 (table name to filename encoding)
        Added an zero argument for the new 'flags' parameter.
      sql/sql_base.cc:
        Bug#18775 - Temporary table from alter table visible to other threads
        Continued implementation of WL#1324 (table name to filename encoding)
        Fixed a comment.
        Added DBUG calls.
      sql/sql_db.cc:
        Bug#18775 - Temporary table from alter table visible to other threads
        Continued implementation of WL#1324 (table name to filename encoding)
        Added an zero argument for the new 'flags' parameter.
      sql/sql_delete.cc:
        Bug#18775 - Temporary table from alter table visible to other threads
        Continued implementation of WL#1324 (table name to filename encoding)
        Added an zero argument for the new 'flags' parameter.
      sql/sql_insert.cc:
        Bug#18775 - Temporary table from alter table visible to other threads
        Continued implementation of WL#1324 (table name to filename encoding)
        Added an zero argument for the new 'flags' parameter.
      sql/sql_partition.cc:
        Bug#18775 - Temporary table from alter table visible to other threads
        Continued implementation of WL#1324 (table name to filename encoding)
        Added an zero argument for the new 'flags' parameter.
      sql/sql_rename.cc:
        Bug#18775 - Temporary table from alter table visible to other threads
        Continued implementation of WL#1324 (table name to filename encoding)
        Added an zero argument for the new 'flags' parameter.
      sql/sql_show.cc:
        Bug#18775 - Temporary table from alter table visible to other threads
        Continued implementation of WL#1324 (table name to filename encoding)
        Reverted the former fix for this bug. tmp_file_prefix is now used
        verbatim in the comparison of file names.
      sql/sql_table.cc:
        Bug#18775 - Temporary table from alter table visible to other threads
        Continued implementation of WL#1324 (table name to filename encoding)
        Added a check for a tmp_file_prefix file name to
        filename_to_tablename(). These names are now accepted without
        conversion.
        Extended quick_rm_table(), mysql_rename_table(), and
        build_table_filename() by an flags argument, which can indicate
        temporary table names that should not be converted.
        Removed the table to file name conversion from
        build_tmptable_filename().
        Disabled REPAIR TABLE ... USE_FRM for temporary tables.
        Added the forgotten conversion to mysql_alter_table() for the case
        of ALTER TABLE ... RENAME.
        Added comments and DBUG calls.
      sql/sql_trigger.cc:
        Bug#18775 - Temporary table from alter table visible to other threads
        Continued implementation of WL#1324 (table name to filename encoding)
        Added an zero argument for the new 'flags' parameter.
      sql/sql_view.cc:
        Bug#18775 - Temporary table from alter table visible to other threads
        Continued implementation of WL#1324 (table name to filename encoding)
        Added an zero argument for the new 'flags' parameter.
      sql/table.cc:
        Bug#18775 - Temporary table from alter table visible to other threads
        Continued implementation of WL#1324 (table name to filename encoding)
        Replaced a literal ".frm" by reg_ext.
        Added DBUG calls.
      storage/innobase/row/row0mysql.c:
        Bug#18775 - Temporary table from alter table visible to other threads
        Continued implementation of WL#1324 (table name to filename encoding)
        Changed back the encoded temp file prefix to #sql.
      4cf97d4a
  5. 26 Jul, 2006 1 commit
    • unknown's avatar
      Bug #20402: DROP USER failure logged as ERROR rather than WARNING · cdc3e31c
      unknown authored
      slave.cc, sql_acl.cc:
      - remove sql_print_error() for events that are not server errors
      
      
      sql/slave.cc:
        Bug #20402: DROP USER failure logged as ERROR rather than WARNING
        remove sql_print_error() for events that are not server errors
      sql/sql_acl.cc:
        Bug #20402: DROP USER failure logged as ERROR rather than WARNING
        remove sql_print_error() for events that are not server errors
      cdc3e31c
  6. 25 Jul, 2006 1 commit
    • unknown's avatar
      Bug#20543 select on information_schema strange warnings, view, different schemas/users · eaf279df
      unknown authored
      The fix is: if user has privileges to view fields and user has any
      (insert,select,delete,update) privileges on underlying view 
      then 'show fields' and select from I_S.COLUMNS table are sucsessful.
      
      
      mysql-test/r/information_schema_db.result:
        Bug#20543 select on information_schema strange warnings, view, different schemas/users
        test result
      mysql-test/t/information_schema_db.test:
        Bug#20543 select on information_schema strange warnings, view, different schemas/users
        test case
      sql/sql_acl.cc:
        Bug#20543 select on information_schema strange warnings, view, different schemas/users
        checked that user has privileges on underlying view and if it's true
        set allowed_show to true for top view.
      sql/sql_show.cc:
        Bug#20543 select on information_schema strange warnings, view, different schemas/users
        removed unnecessary rights check.'tables->allowed_show' check is used instead
      sql/sql_view.cc:
        Bug#20543 select on information_schema strange warnings, view, different schemas/users
        skip the check of SHOW_VIEW_ACL privilege on underlying view. It is done later during
        execution of find_field_in_table_ref function.
      sql/table.h:
        Bug#20543 select on information_schema strange warnings, view, different schemas/users
        'allowed_show' is set during rights check for view. If true then user has privileges 
        for 'show create view', etc
      eaf279df
  7. 24 Jul, 2006 1 commit
    • unknown's avatar
      Bug #10668: CREATE USER does not enforce username length limit · a7902acb
      unknown authored
        This appears to have just been an oversight -- CREATE USER was not enforcing
        the existing username limitations.
      
      
      mysql-test/r/grant.result:
        Add new results
      mysql-test/t/grant.test:
        Add new regression test
      sql/sql_acl.cc:
        Enforce the user and host name limits in mysql_create_user().
      a7902acb
  8. 01 Jul, 2006 1 commit
    • unknown's avatar
      BUG#17138: Crashes in stored procedure · 55a4458d
      unknown authored
      Last round of review fixes
      
      
      BUILD/compile-pentium-gcov:
        No change
      sql/ha_ndbcluster.h:
        Last round of review changes
      sql/ha_partition.h:
        Last round of review changes
      sql/handler.h:
        Last round of review changes
      sql/item_sum.cc:
        Last round of review changes
      sql/sql_acl.cc:
        Last round of review changes
      sql/sql_insert.cc:
        Last round of review changes
      sql/sql_select.cc:
        Last round of review changes
      sql/sql_table.cc:
        Last round of review changes
      sql/sql_union.cc:
        Last round of review changes
      sql/sql_update.cc:
        Last round of review changes
      55a4458d
  9. 29 Jun, 2006 1 commit
    • 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
  10. 28 Jun, 2006 1 commit
    • unknown's avatar
      Bug#19857: When a user with CREATE ROUTINE priv creates a routine it results in NULL p/w · cfc10401
      unknown authored
        
      sp_grant_privileges(), the function that GRANTs EXECUTE + ALTER privs on a SP,
      did so creating a user-entry with not password; mysql_routine_grant() would then
      write that "change" to the user-table.
      
      
      mysql-test/r/sp-security.result:
        prove that creating a stored procedure will not destroy the creator's password
      mysql-test/t/sp-security.test:
        prove that creating a stored procedure will not destroy the creator's password
      sql/sql_acl.cc:
        get password from ACLs, convert to correct format, and use it when
        forcing GRANTS for SPs
      cfc10401
  11. 22 Jun, 2006 1 commit
    • unknown's avatar
      BUG#17138: Error in stored procedure · 8babbb75
      unknown authored
      Review comments
      
      
      mysql-test/t/partition.test:
        Changed procedure names ensured procedures were dropped
      sql/ha_ndbcluster.h:
        Improved name of method
      sql/ha_partition.h:
        Improved name of method
      sql/handler.h:
        Improved name of method
        Removed deprecated constants
      sql/item_sum.cc:
        Improved name of method
      sql/sql_acl.cc:
        Improved name of method
      sql/sql_insert.cc:
        Removed use of HA_WRITE_SKIP and introduced is_fatal_error instead
      sql/sql_select.cc:
        Improved name of method
      sql/sql_table.cc:
        Improved name of method
        Reintroduced dead code for future possible use
      sql/sql_union.cc:
        Improved name of method
      sql/sql_update.cc:
        Improved name of method
      8babbb75
  12. 20 Jun, 2006 1 commit
    • unknown's avatar
      BUG#17138: Error in stored procedure due to fatal error when not really · 461d75a1
      unknown authored
      a fatal error. New handling of ignore error in place.
      
      
      mysql-test/t/partition.test:
        New test case
      sql/ha_ndbcluster.h:
        New handler method to check if error can be ignored
      sql/ha_partition.h:
        New handler method to check if error can be ignored
      sql/handler.h:
        New handler method to check if error can be ignored
      sql/sql_acl.cc:
        Use new handler method
      sql/sql_insert.cc:
        Use new handler method
      sql/sql_table.cc:
        Use new handler method
      sql/sql_union.cc:
        Use new handler method
      sql/sql_update.cc:
        Use new handler method
      461d75a1
  13. 16 Jun, 2006 1 commit
  14. 06 Jun, 2006 1 commit
    • unknown's avatar
      Re-apply missing changeset, orignally pushed by elliot · 43548a56
      unknown authored
      Add define YASSL_PREFIX when compiling yassl
      
      Import patch from yaSSL
      - avoid allocating memory for each call to 'EVP_md5' and 
        'EVP_des_ede3_cbc' which were not released until server was stopped
      - Those functions are used from the SQL function 'des_encrypt' and
        'des_decrypt'.
      
      Add new define YASSL_PREFIX beforee including ssl.h to activate inclusion of prefix_*.h files
      
      Bug#20022 mysql-test-run can't be run with secure connections turned on for all testcases
      - Part 1, fixes rpl- and federated-tests where connection is made to 127.0.0.1
      
      - Include prefix files that renames all public functions in yaSSLs
        OpenSSL API to ya<function_name>. They will otherwise conflict
        with OpenSSL functions if loaded by an application that uses OpenSSL
        as well as libmysqlclient with yaSSL support.
      
      Bug#18235: assertion/crash when windows mysqld is ended with ctrl-c
        
      Two threads both try a shutdown sequence which creates a race to the
      de-init/free of certain resources.
        
      This exists in similar form in the client as 17926: "mysql.exe crashes
      when ctrl-c is pressed in windows."
      
      Update after merge to 5.0
      
      BUG#18669: Session COM_STATISTICS breaks mysqladmin status.
      Changed COM_STATISTICS to display the global status, instead of thead status, for slow queries and table opens.
      
      - In function 'handle_grant_struct' when searching the memory structures for an 
        entry to modify, convert all entries here host.hostname is NULL to "" and compare that 
        with the host passed in argument "user_from".
      - A user created with hostname "" is stored in "mysql.user" table as host="" but when loaded into 
        memory it'll be stored as host.hostname NULL. Specifiying "" as hostname means
        that "any host" can connect. Thus is's correct to turn on allow_all_hosts
        when such a user is found. 
      - Review and fix other places where host.hostname may be NULL.
      
      BUG#19394 OPT_INNODB_THREAD_CONCURRENCY duplicated
      Removed duplication (not a user-visible change)
      
      
      client/Makefile.am:
        Remove $yassl_includes
      client/mysqltest.c:
        Turn on ssl_verify_server_cert only if host is "localhost"
      extra/yassl/include/openssl/crypto.h:
        Add prefix file for ssl.h
      extra/yassl/include/openssl/ssl.h:
        Add include file "prefix_crypto.h" to rename SSL_* functions to yaSSL_*
      extra/yassl/include/yassl_int.hpp:
        Import patch yassl.diff
      extra/yassl/src/Makefile.am:
        Add defined YASSL_PREFIX when building yassl/testsuite
      extra/yassl/src/ssl.cpp:
        Import patch yassl.diff
      extra/yassl/src/template_instnt.cpp:
        Import patch yassl.diff
      extra/yassl/src/yassl_int.cpp:
        Import patch yassl.diff
      extra/yassl/testsuite/Makefile.am:
        Add defined YASSL_PREFIX when building yassl/testsuite
      extra/yassl/yassl.vcproj:
        Add define YASSL_PREFIX when compiling yassl
      include/violite.h:
        Add new define YASSL_PREFIX beforee including ssl.h to activate inclusion of prefix_*.h files
      libmysql/Makefile.am:
        Remove yassl_includes
      libmysql_r/Makefile.am:
        Remove yassl_includes
      libmysqld/Makefile.am:
        Remove yassl_includes
      libmysqld/examples/Makefile.am:
        Remove yassl_includes
      mysql-test/r/analyze.result:
        Add missing drop table
      mysql-test/r/grant.result:
        Reorder test result
        Add test cases for users with hostname ""
      mysql-test/r/ps.result:
        Add missing drop table
      mysql-test/t/analyze.test:
        Add missing drop table
      mysql-test/t/grant.test:
        Add "use test"
        Add test cases for users with hostname ""
        - Test create, grant and drop as well as connecting as the user with hostname "".
      mysql-test/t/ps.test:
        Add missing drop table
      server-tools/instance-manager/Makefile.am:
        Remove yassl_includes
      sql/Makefile.am:
        Remove yassl_includes
      sql/mysqld.cc:
        We have three potential ways of hitting the iceberg:
        - unireg_end()   has basic de-init
        - unireg_abort() has extended de-init
        - main() has a de-init sequence similar to unireg_abort()
        
        In the Windows version of the server, Control-C is handled
        in a different thread from the one main() is in.  The main
        loop is told to end, then unireg_abort() is called.  Its
        de-init and that of main() will then race each other for
        mutex- and cond-var-destroys, free(), and finally exit().
        
        This patch introduces a special case for Windows that will eliminate
        the race by ending the signal-handler via unireg_end() instead if
        SIGINT is signalled.  This seems the least intrusive fix that still
        fixes user-visible behaviour.
        
        Two of the startup options for mysqld, innodb_commit_concurrency
        and innodb_thread_concurrency, were using the same enumeration
        value. Changed to give innodb_commit_concurrency it's own value.
      sql/sql_acl.cc:
        Add check if host is NULL
        Add check if grant_name->host.hostname is null
        Convert places where host.hostname is NULL to "" before using it.
      sql/sql_parse.cc:
        Calculate and display the global statistics.
      vio/Makefile.am:
        Remove yassl_includes
      extra/yassl/include/openssl/generate_prefix_files.pl:
        New BitKeeper file ``extra/yassl/include/openssl/generate_prefix_files.pl''
      extra/yassl/include/openssl/prefix_crypto.h:
        New BitKeeper file ``extra/yassl/include/openssl/prefix_crypto.h''
      extra/yassl/include/openssl/prefix_ssl.h:
        New BitKeeper file ``extra/yassl/include/openssl/prefix_ssl.h''
      43548a56
  15. 04 Jun, 2006 1 commit
    • unknown's avatar
      This changeset is largely a handler cleanup changeset (WL#3281), but includes... · 85a8e6ab
      unknown authored
      This changeset is largely a handler cleanup changeset (WL#3281), but includes fixes and cleanups that was found necessary while testing the handler changes
      
      Changes that requires code changes in other code of other storage engines.
      (Note that all changes are very straightforward and one should find all issues
      by compiling a --debug build and fixing all compiler errors and all
      asserts in field.cc while running the test suite),
      
      - New optional handler function introduced: reset()
        This is called after every DML statement to make it easy for a handler to
        statement specific cleanups.
        (The only case it's not called is if force the file to be closed)
      
      - handler::extra(HA_EXTRA_RESET) is removed. Code that was there before
        should be moved to handler::reset()
      
      - table->read_set contains a bitmap over all columns that are needed
        in the query.  read_row() and similar functions only needs to read these
        columns
      - table->write_set contains a bitmap over all columns that will be updated
        in the query. write_row() and update_row() only needs to update these
        columns.
        The above bitmaps should now be up to date in all context
        (including ALTER TABLE, filesort()).
      
        The handler is informed of any changes to the bitmap after
        fix_fields() by calling the virtual function
        handler::column_bitmaps_signal(). If the handler does caching of
        these bitmaps (instead of using table->read_set, table->write_set),
        it should redo the caching in this code. as the signal() may be sent
        several times, it's probably best to set a variable in the signal
        and redo the caching on read_row() / write_row() if the variable was
        set.
      
      - Removed the read_set and write_set bitmap objects from the handler class
      
      - Removed all column bit handling functions from the handler class.
        (Now one instead uses the normal bitmap functions in my_bitmap.c instead
        of handler dedicated bitmap functions)
      
      - field->query_id is removed. One should instead instead check
        table->read_set and table->write_set if a field is used in the query.
      
      - handler::extra(HA_EXTRA_RETRIVE_ALL_COLS) and
        handler::extra(HA_EXTRA_RETRIEVE_PRIMARY_KEY) are removed. One should now
        instead use table->read_set to check for which columns to retrieve.
      
      - If a handler needs to call Field->val() or Field->store() on columns
        that are not used in the query, one should install a temporary
        all-columns-used map while doing so. For this, we provide the following
        functions:
      
        my_bitmap_map *old_map= dbug_tmp_use_all_columns(table, table->read_set);
        field->val();
        dbug_tmp_restore_column_map(table->read_set, old_map);
      
        and similar for the write map:
      
        my_bitmap_map *old_map= dbug_tmp_use_all_columns(table, table->write_set);
        field->val();
        dbug_tmp_restore_column_map(table->write_set, old_map);
      
        If this is not done, you will sooner or later hit a DBUG_ASSERT
        in the field store() / val() functions.
        (For not DBUG binaries, the dbug_tmp_restore_column_map() and
        dbug_tmp_restore_column_map() are inline dummy functions and should
        be optimized away be the compiler).
      
      - If one needs to temporary set the column map for all binaries (and not
        just to avoid the DBUG_ASSERT() in the Field::store() / Field::val()
        methods) one should use the functions tmp_use_all_columns() and
        tmp_restore_column_map() instead of the above dbug_ variants.
      
      - All 'status' fields in the handler base class (like records,
        data_file_length etc) are now stored in a 'stats' struct. This makes
        it easier to know what status variables are provided by the base
        handler.  This requires some trivial variable names in the extra()
        function.
      
      - New virtual function handler::records().  This is called to optimize
        COUNT(*) if (handler::table_flags() & HA_HAS_RECORDS()) is true.
        (stats.records is not supposed to be an exact value. It's only has to
        be 'reasonable enough' for the optimizer to be able to choose a good
        optimization path).
      
      - Non virtual handler::init() function added for caching of virtual
        constants from engine.
      
      - Removed has_transactions() virtual method. Now one should instead return
        HA_NO_TRANSACTIONS in table_flags() if the table handler DOES NOT support
        transactions.
      
      - The 'xxxx_create_handler()' function now has a MEM_ROOT_root argument
        that is to be used with 'new handler_name()' to allocate the handler
        in the right area.  The xxxx_create_handler() function is also
        responsible for any initialization of the object before returning.
      
        For example, one should change:
      
        static handler *myisam_create_handler(TABLE_SHARE *table)
        {
          return new ha_myisam(table);
        }
      
        ->
      
        static handler *myisam_create_handler(TABLE_SHARE *table, MEM_ROOT *mem_root)
        {
          return new (mem_root) ha_myisam(table);
        }
      
      - New optional virtual function: use_hidden_primary_key().
        This is called in case of an update/delete when
        (table_flags() and HA_PRIMARY_KEY_REQUIRED_FOR_DELETE) is defined
        but we don't have a primary key. This allows the handler to take precisions
        in remembering any hidden primary key to able to update/delete any
        found row. The default handler marks all columns to be read.
      
      - handler::table_flags() now returns a ulonglong (to allow for more flags).
      
      - New/changed table_flags()
        - HA_HAS_RECORDS	    Set if ::records() is supported
        - HA_NO_TRANSACTIONS	    Set if engine doesn't support transactions
        - HA_PRIMARY_KEY_REQUIRED_FOR_DELETE
                                  Set if we should mark all primary key columns for
      			    read when reading rows as part of a DELETE
      			    statement. If there is no primary key,
      			    all columns are marked for read.
        - HA_PARTIAL_COLUMN_READ  Set if engine will not read all columns in some
      			    cases (based on table->read_set)
       - HA_PRIMARY_KEY_ALLOW_RANDOM_ACCESS
         			    Renamed to HA_PRIMARY_KEY_REQUIRED_FOR_POSITION.
       - HA_DUPP_POS              Renamed to HA_DUPLICATE_POS
       - HA_REQUIRES_KEY_COLUMNS_FOR_DELETE
      			    Set this if we should mark ALL key columns for
      			    read when when reading rows as part of a DELETE
      			    statement. In case of an update we will mark
      			    all keys for read for which key part changed
      			    value.
        - HA_STATS_RECORDS_IS_EXACT
      			     Set this if stats.records is exact.
      			     (This saves us some extra records() calls
      			     when optimizing COUNT(*))
      			    
      
      - Removed table_flags()
        - HA_NOT_EXACT_COUNT     Now one should instead use HA_HAS_RECORDS if
      			   handler::records() gives an exact count() and
      			   HA_STATS_RECORDS_IS_EXACT if stats.records is exact.
        - HA_READ_RND_SAME	   Removed (no one supported this one)
      
      - Removed not needed functions ha_retrieve_all_cols() and ha_retrieve_all_pk()
      
      - Renamed handler::dupp_pos to handler::dup_pos
      
      - Removed not used variable handler::sortkey
      
      
      Upper level handler changes:
      
      - ha_reset() now does some overall checks and calls ::reset()
      - ha_table_flags() added. This is a cached version of table_flags(). The
        cache is updated on engine creation time and updated on open.
      
      
      MySQL level changes (not obvious from the above):
      
      - DBUG_ASSERT() added to check that column usage matches what is set
        in the column usage bit maps. (This found a LOT of bugs in current
        column marking code).
      
      - In 5.1 before, all used columns was marked in read_set and only updated
        columns was marked in write_set. Now we only mark columns for which we
        need a value in read_set.
      
      - Column bitmaps are created in open_binary_frm() and open_table_from_share().
        (Before this was in table.cc)
      
      - handler::table_flags() calls are replaced with handler::ha_table_flags()
      
      - For calling field->val() you must have the corresponding bit set in
        table->read_set. For calling field->store() you must have the
        corresponding bit set in table->write_set. (There are asserts in
        all store()/val() functions to catch wrong usage)
      
      - thd->set_query_id is renamed to thd->mark_used_columns and instead
        of setting this to an integer value, this has now the values:
        MARK_COLUMNS_NONE, MARK_COLUMNS_READ, MARK_COLUMNS_WRITE
        Changed also all variables named 'set_query_id' to mark_used_columns.
      
      - In filesort() we now inform the handler of exactly which columns are needed
        doing the sort and choosing the rows.
      
      - The TABLE_SHARE object has a 'all_set' column bitmap one can use
        when one needs a column bitmap with all columns set.
        (This is used for table->use_all_columns() and other places)
      
      - The TABLE object has 3 column bitmaps:
        - def_read_set     Default bitmap for columns to be read
        - def_write_set    Default bitmap for columns to be written
        - tmp_set          Can be used as a temporary bitmap when needed.
        The table object has also two pointer to bitmaps read_set and write_set
        that the handler should use to find out which columns are used in which way.
      
      - count() optimization now calls handler::records() instead of using
        handler->stats.records (if (table_flags() & HA_HAS_RECORDS) is true).
      
      - Added extra argument to Item::walk() to indicate if we should also
        traverse sub queries.
      
      - Added TABLE parameter to cp_buffer_from_ref()
      
      - Don't close tables created with CREATE ... SELECT but keep them in
        the table cache. (Faster usage of newly created tables).
      
      
      New interfaces:
      
      - table->clear_column_bitmaps() to initialize the bitmaps for tables
        at start of new statements.
      
      - table->column_bitmaps_set() to set up new column bitmaps and signal
        the handler about this.
      
      - table->column_bitmaps_set_no_signal() for some few cases where we need
        to setup new column bitmaps but don't signal the handler (as the handler
        has already been signaled about these before). Used for the momement
        only in opt_range.cc when doing ROR scans.
      
      - table->use_all_columns() to install a bitmap where all columns are marked
        as use in the read and the write set.
      
      - table->default_column_bitmaps() to install the normal read and write
        column bitmaps, but not signaling the handler about this.
        This is mainly used when creating TABLE instances.
      
      - table->mark_columns_needed_for_delete(),
        table->mark_columns_needed_for_delete() and
        table->mark_columns_needed_for_insert() to allow us to put additional
        columns in column usage maps if handler so requires.
        (The handler indicates what it neads in handler->table_flags())
      
      - table->prepare_for_position() to allow us to tell handler that it
        needs to read primary key parts to be able to store them in
        future table->position() calls.
        (This replaces the table->file->ha_retrieve_all_pk function)
      
      - table->mark_auto_increment_column() to tell handler are going to update
        columns part of any auto_increment key.
      
      - table->mark_columns_used_by_index() to mark all columns that is part of
        an index.  It will also send extra(HA_EXTRA_KEYREAD) to handler to allow
        it to quickly know that it only needs to read colums that are part
        of the key.  (The handler can also use the column map for detecting this,
        but simpler/faster handler can just monitor the extra() call).
      
      - table->mark_columns_used_by_index_no_reset() to in addition to other columns,
        also mark all columns that is used by the given key.
      
      - table->restore_column_maps_after_mark_index() to restore to default
        column maps after a call to table->mark_columns_used_by_index().
      
      - New item function register_field_in_read_map(), for marking used columns
        in table->read_map. Used by filesort() to mark all used columns
      
      - Maintain in TABLE->merge_keys set of all keys that are used in query.
        (Simplices some optimization loops)
      
      - Maintain Field->part_of_key_not_clustered which is like Field->part_of_key
        but the field in the clustered key is not assumed to be part of all index.
        (used in opt_range.cc for faster loops)
      
      -  dbug_tmp_use_all_columns(), dbug_tmp_restore_column_map()
         tmp_use_all_columns() and tmp_restore_column_map() functions to temporally
         mark all columns as usable.  The 'dbug_' version is primarily intended
         inside a handler when it wants to just call Field:store() & Field::val()
         functions, but don't need the column maps set for any other usage.
         (ie:: bitmap_is_set() is never called)
      
      - We can't use compare_records() to skip updates for handlers that returns
        a partial column set and the read_set doesn't cover all columns in the
        write set. The reason for this is that if we have a column marked only for
        write we can't in the MySQL level know if the value changed or not.
        The reason this worked before was that MySQL marked all to be written
        columns as also to be read. The new 'optimal' bitmaps exposed this 'hidden
        bug'.
      
      - open_table_from_share() does not anymore setup temporary MEM_ROOT
        object as a thread specific variable for the handler. Instead we
        send the to-be-used MEMROOT to get_new_handler().
        (Simpler, faster code)
      
      
      
      Bugs fixed:
      
      - Column marking was not done correctly in a lot of cases.
        (ALTER TABLE, when using triggers, auto_increment fields etc)
        (Could potentially result in wrong values inserted in table handlers
        relying on that the old column maps or field->set_query_id was correct)
        Especially when it comes to triggers, there may be cases where the
        old code would cause lost/wrong values for NDB and/or InnoDB tables.
      
      - Split thd->options flag OPTION_STATUS_NO_TRANS_UPDATE to two flags:
        OPTION_STATUS_NO_TRANS_UPDATE and OPTION_KEEP_LOG.
        This allowed me to remove some wrong warnings about:
        "Some non-transactional changed tables couldn't be rolled back"
      
      - Fixed handling of INSERT .. SELECT and CREATE ... SELECT that wrongly reset
        (thd->options & OPTION_STATUS_NO_TRANS_UPDATE) which caused us to loose
        some warnings about
        "Some non-transactional changed tables couldn't be rolled back")
      
      - Fixed use of uninitialized memory in ha_ndbcluster.cc::delete_table()
        which could cause delete_table to report random failures.
      
      - Fixed core dumps for some tests when running with --debug
      
      - Added missing FN_LIBCHAR in mysql_rm_tmp_tables()
        (This has probably caused us to not properly remove temporary files after
        crash)
      
      - slow_logs was not properly initialized, which could maybe cause
        extra/lost entries in slow log.
      
      - If we get an duplicate row on insert, change column map to read and
        write all columns while retrying the operation. This is required by
        the definition of REPLACE and also ensures that fields that are only
        part of UPDATE are properly handled.  This fixed a bug in NDB and
        REPLACE where REPLACE wrongly copied some column values from the replaced
        row.
      
      - For table handler that doesn't support NULL in keys, we would give an error
        when creating a primary key with NULL fields, even after the fields has been
        automaticly converted to NOT NULL.
      
      - Creating a primary key on a SPATIAL key, would fail if field was not
        declared as NOT NULL.
      
      
      Cleanups:
      
      - Removed not used condition argument to setup_tables
      
      - Removed not needed item function reset_query_id_processor().
      
      - Field->add_index is removed. Now this is instead maintained in
        (field->flags & FIELD_IN_ADD_INDEX)
      
      - Field->fieldnr is removed (use field->field_index instead)
      
      - New argument to filesort() to indicate that it should return a set of
        row pointers (not used columns). This allowed me to remove some references
        to sql_command in filesort and should also enable us to return column
        results in some cases where we couldn't before.
      
      - Changed column bitmap handling in opt_range.cc to be aligned with TABLE
        bitmap, which allowed me to use bitmap functions instead of looping over
        all fields to create some needed bitmaps. (Faster and smaller code)
      
      - Broke up found too long lines
      
      - Moved some variable declaration at start of function for better code
        readability.
      
      - Removed some not used arguments from functions.
        (setup_fields(), mysql_prepare_insert_check_table())
      
      - setup_fields() now takes an enum instead of an int for marking columns
         usage.
      
      - For internal temporary tables, use handler::write_row(),
        handler::delete_row() and handler::update_row() instead of
        handler::ha_xxxx() for faster execution.
      
      - Changed some constants to enum's and define's.
      
      - Using separate column read and write sets allows for easier checking
        of timestamp field was set by statement.
      
      - Remove calls to free_io_cache() as this is now done automaticly in ha_reset()
      
      - Don't build table->normalized_path as this is now identical to table->path
        (after bar's fixes to convert filenames)
      
      - Fixed some missed DBUG_PRINT(.."%lx") to use "0x%lx" to make it easier to
        do comparision with the 'convert-dbug-for-diff' tool.
      
      
      Things left to do in 5.1:
      
      - We wrongly log failed CREATE TABLE ... SELECT in some cases when using
        row based logging (as shown by testcase binlog_row_mix_innodb_myisam.result)
        Mats has promised to look into this.
      
      - Test that my fix for CREATE TABLE ... SELECT is indeed correct.
        (I added several test cases for this, but in this case it's better that
        someone else also tests this throughly).
        Lars has promosed to do this.
      
      
      BitKeeper/etc/ignore:
        added mysys/test_bitmap
      include/base64.h:
        Removed my_global.h, as this must be included first in any program
      include/heap.h:
        Added heap_reset() (Required by new handler interface)
      include/my_base.h:
        Removed HA_EXTRA_RESET. MySQL will now call ::reset() instead of ::extra(HA_EXTRA_RESET).
        HA_EXTRA_RETRIVE_ALL_COLS and HA_EXTRA_RETRIVE_PRIMARY key are deleted as the column bitmaps makes these unnecessary
      include/my_bitmap.h:
        Remove my_pthread.h (should be included at upper level)
        Introduced my_bitmap_map typedef to make it the bitmap handling more like a black box
        Added bitmap_is_overlapping(), bitmap_test_and_clear(), bitmap_copy() and bitmap_cmp()
        Made bitmap_set_bit(), bitmap_flip_bit(), bitmap_clear_bit() return void
      include/myisam.h:
        Added mi_reset() (Required by new handler interface)
      include/myisammrg.h:
        Added myrg_reset() (Required by new handler interface)
      include/mysql_com.h:
        Added flag FIELD_IN_ADD_INDEX to be able to remove Field->add_index
      mysql-test/extra/binlog_tests/mix_innodb_myisam_binlog.test:
        Added testing of CREATE ... SELECT in a mixed environment
        (This found some bugs that Mats is going to fix shortly)
      mysql-test/install_test_db.sh:
        Simplify ldata usage
        Added --tmpdir=. option to mysqld bootstrap (Removed some warnings when TMPDIR was wrongly set)
      mysql-test/mysql-test-run.pl:
        Added --tmpdir=. to bootstrap
      mysql-test/mysql-test-run.sh:
        Use copy instead of INSTALL_DB for master and slave databases.
        (Speeds up startup time a lot!)
        Remove snapshot directories at startup (removes some strange warnings)
      mysql-test/r/binlog_row_mix_innodb_myisam.result:
        Added testing of CREATE ... SELECT in a mixed environment
        (This found some bugs that Mats is going to fix shortly)
      mysql-test/r/binlog_stm_mix_innodb_myisam.result:
        Added testing of CREATE ... SELECT in a mixed environment
      mysql-test/r/create.result:
        Some extra tests of warnings and number of tables opened by CREATE ... SELECT
      mysql-test/r/federated.result:
        Drop some left over tables
        Added testing of multiple table update and multiple table delete (with and without keys)
      mysql-test/r/func_gconcat.result:
        Enable some disabled tests (converted them slightly to be predictable)
      mysql-test/r/func_time.result:
        Added drop of test function
      mysql-test/r/innodb_mysql.result:
        Added tests for CREATE ... SELECT
      mysql-test/r/insert.result:
        More tests
        Added testing of duplicate columns in insert
      mysql-test/r/loaddata.result:
        Added testing LOAD DATA ... SET ...
      mysql-test/r/multi_update.result:
        Test multi updates and deletes using primary key and without
      mysql-test/r/ndb_index_unique.result:
        Better error message
      mysql-test/r/ndb_replace.result:
        New correct result after fixing REPLACE handling with NDB
      mysql-test/r/rpl_ddl.result:
        Now we don't get these (wrong) warnings anymore
      mysql-test/r/view_grant.result:
        Drop used views
      mysql-test/t/create.test:
        Some extra tests of warnings and number of tables opened by CREATE ... SELECT
      mysql-test/t/federated.test:
        Drop some left over tables
        Added testing of multiple table update and multiple table delete (with and without keys)
      mysql-test/t/func_gconcat.test:
        Enable some disabled tests (converted them slightly to be predictable)
      mysql-test/t/func_time.test:
        Added drop of test function
      mysql-test/t/innodb_mysql.test:
        Added tests for CREATE ... SELECT
      mysql-test/t/insert.test:
        More tests
        Added testing of duplicate columns in insert
      mysql-test/t/loaddata.test:
        Added testing LOAD DATA ... SET ...
      mysql-test/t/multi_update.test:
        Test multi updates and deletes using primary key and without
      mysql-test/t/view_grant.test:
        Drop used views
      mysql-test/valgrind.supp:
        Added supression of not needed warnings when printing stack trace
      mysys/base64.c:
        Include my_global.h first
      mysys/my_bitmap.c:
        Added bitmap_is_overlapping(), bitmap_test_and_clear() and bitmap_copy()
        Changed logic of bitmap handling to be a bit more efficent (Did this together with Mikael Ronström)
        Now the 'extra, not used bits' in the bitmap are assumed to have a 'random value' and the bitmap functions are free to change them whenever needed.
        Changed how mutex is allocated to make 'bitmap_free()' function simpler.
      mysys/thr_lock.c:
        Added 0x before thread pointers (for easier comparison of DBUG traces)
      sql/event.cc:
        Ensure 'use_all_columns()' is used for event tables
        Don't print warning that event table is damaged if it doesn't exists.
      sql/field.cc:
        Added ASSERT_COLUMN_MARKED_FOR_WRITE in all store() methods and ASSERT_COLUMN_MARKED_FOR_READ in all val() methods to catch wrong setting if table->read_set and table->write_set
        (Rest of changes are only indentation cleanups)
      sql/field.h:
        Removed Field->query_id (replaced by table->read_set and table->write_set)
        Removed Field->fieldnr (use Field->field_index instead)
        Removed Field->add_index (Use Field->flags instead)
        Add Field->part_of_key_not_clustered (for usage in opt_range.cc)
      sql/filesort.cc:
        Added paramater sort_postion to filesort() to force sorting by position instead of storing all fields in the result set.
        This allowed me to remove checking of sql_command.
        Create a temporary column bitmap for fields that are used by the sorting process.
        Use column bitmaps instead of query_id
      sql/ha_berkeley.cc:
        Update to 'newer' table handler interface
      sql/ha_berkeley.h:
        Update to 'newer' table handler interface
      sql/ha_federated.cc:
        Update to 'newer' table handler interface
        Only read columns that are needed from remote server.
        In case of eq ranges, don't generate two conditions in the WHERE clause
        (this can still be optimized, but would require a bigger code change)
        Use 'simpler to use' XXXX_LEN' macros
        A bit simpler logic in ::write_row() when creating statements.
        In update, only include test of fields actually read.
        (This greatly simplifies the queries sent by the federated engine)
        Similar changes done for delete_row()
      sql/ha_federated.h:
        Update to 'newer' table handler interface
        Changed XXX_LEN macros to use sizeof(...)-1, to simplify usage in ha_federated.cc
        Added HA_PRIMARY_KEY_REQUIRED_FOR_DELETE to tell MySQL to read all primary key columns in case of DELETE
      sql/ha_heap.cc:
        Update to 'newer' table handler interface
      sql/ha_heap.h:
        Update to 'newer' table handler interface
      sql/ha_innodb.cc:
        Update to 'newer' table handler interface
        - Update innobase_create_handler() to new interface
        - Removed HA_NOT_EXACT_COUNT (not needed)
        - Renamed HA_PRIMARY_KEY_ALLOW_RANDOM_ACCESS to HA_PRIMARY_KEY_REQUIRED_FOR_POSITION.
        - Prefixed base status variables with 'stats'
        - Use table column bitmaps instead of ha_get_bit_in_read_set()
        - Added ::reset(), with code from ::extra(HA_EXTRA_RESET)
        - Removed HA_EXTRA_RETRIVE_ALL_COLS and HA_EXTRA_RETRIEVE_PRIMARY_KEY as
          the table->read_set and table->write_set bitmaps now are accurate
      sql/ha_innodb.h:
        Update to 'newer' table handler interface
        - table_flags are now ulonglong
        - Added reset() method
        - Removed not needed ha_retrieve_all_cols() and ha_retrieve_all_pk() columns.
        - Made build_template() a class function to be able to easier access class variables
      sql/ha_myisam.cc:
        Update to 'newer' table handler interface
      sql/ha_myisam.h:
        Update to 'newer' table handler interface
      sql/ha_myisammrg.cc:
        Update to 'newer' table handler interface
      sql/ha_myisammrg.h:
        Update to 'newer' table handler interface
      sql/ha_ndbcluster.cc:
        Update to 'newer' table handler interface
        Fixed use_blob_value() to be accurate
        In ::complemented_read() we have to check both the read and write bitmap as the old code did mark all changed columns also in the read map
        Correct dumping of field data with DBUG_DUMP
        Prefix addresses in DBUG_PRINT with 0x
        Fixed usage of not initialized memory
        Update to use field->flags & FIELD_IN_ADD_INDEX instead of field->add_index.
      sql/ha_ndbcluster.h:
        Update to 'newer' table handler interface
      sql/ha_ndbcluster_binlog.cc:
        Mark usage of all columns in ndbcluster binlog tables
        false -> FALSE, true -> TRUE
        Use table->s->all_set instead of creating a temporary bitmap.
      sql/ha_partition.cc:
        Update to 'newer' table handler interface
        Added memroot to initialise_partitions() and related functions to get faster memory allocation.
        partition_create_handler() is now responsible for initialisation of the partition object
        Some trivial optimizations and indentation fixes
        Ensure that table_flags() are up to date
        Removed documentation for removed HA_EXTRA flags
        Fixed 'strange' usage of m_file[i] in new_handlers_from_part_info()that worked in current code 'by chance'
      sql/ha_partition.h:
        Update to 'newer' table handler interface
      sql/handler.cc:
        create_xxx handler now takes MEMROOT as an argument to simplify memory allocation.
        Much simpler get_new_handler()
        (Initialization of the object is now handled by the create method for the engine)
        Moved all allocation of bitmap handling to the TABLE object (in table.cc)
        Added column_bitmaps_signal() to signal column usage changes.
        Changed binlog_log_row() to use the exiusting all_set bitmap in the table object.
        Added ha_reset() function to test that the file object is ok at end of statement and call handler::reset()
        Added use_hidden_primary_key() to signal handler that we we are going to read and update + delete the row and the handler should thus remember the position for the row
      sql/handler.h:
        Added HA_NO_TRANSACTIONS, HA_PARTIAL_COLUMN_READ, HA_REQUIRES_KEY_COLUMNS_FOR_DELETE,HA_PRIMARY_KEY_REQUIRED_FOR_DELETE and HA_HAS_RECORDS
        Removed HA_NOT_EXACT_COUNT, HA_READ_RND_SAME
        HA_DUPP_POS -> HA_DUPLICATE_POS
        HA_NOT_EXACT_COUNT replaced by HA_STATS_RECORDS_IS_EXACT, HA_HAS_RECORDS and records()
        HA_PRIMARY_KEY_ALLOW_RANDOM_ACCESS renamed to HA_PRIMARY_KEY_REQUIRED_FOR_POSITION
        Added future row type 'ROW_TYPE_PAGES'
        Added MEM_ROOT to handlerton 'create' function
        Added ha_statistics, a structure for all status variable in the base handler class.
        Moved all status variables in the handler class into a stats structs to improve readability.
        ha_table_flags() is now a cached (not virtual) version of table_flags()
        reset() doesn't anymore call extra(HA_EXTRA_RESET) but is a function of it's own.
        Renamed dupp_ref to dup_ref
        Renamed not used handler::sortkey
        Moved read_set and write_set to TABLE structure
        handler::init() function added for cacheing of virtual constants from engine.
      sql/item.cc:
        Added register_field_in_read_map() for marking used columns in expression.
        This is used by filesort() for creating an optimal column bitmap while retrieving columns for sorting.
        Initalize value.cs_info.character_set_client to fix core dump bug with --debug
        set_query_id -> mark_used_columns
        Mark used columns in read_set OR write_set.
      sql/item.h:
        Removed reset_query_id_processor() as it's not needed anymore.
        Added register_field_in_read_map()
        Added extra argument to Item::walk() to indicate if we should also
        traverse sub queries.
      sql/item_cmpfunc.cc:
        Temporary mark used columns to be read/writable
        Update Item::walk to new interface
      sql/item_cmpfunc.h:
        Added extra argument to Item::walk() to indicate if we should also traverse sub queries.
      sql/item_func.cc:
        Update Item::walk() to new interface
        table_flags() -> ha_table_flags()
      sql/item_func.h:
        Update Item::walk() to new interface
      sql/item_row.cc:
        Update Item::walk() to new interface
      sql/item_row.h:
        Update Item::walk() to new interface
      sql/item_strfunc.h:
        Update Item::walk() to new interface
      sql/item_subselect.cc:
        Added Item_subselect::walk()
        (It was a bug it was missing before. Not sure what kind of bugs this could have caused)
      sql/item_subselect.h:
        Update Item::walk() to new interface
      sql/item_sum.cc:
        Update Item::walk() to new interface
        Updates for new handler interace
      sql/item_sum.h:
        Update Item::walk() to new interface
      sql/key.cc:
        Updates for new handler interace
      sql/log.cc:
        Mark all columns used for log tables
        Split options flag
        Ensured that second argument to trans_register_ha is a bool
      sql/log_event.cc:
        Fixed comments to be withing 79 characters
        Use OPTION_KEEP_LOG instead of OPTION_STATUS_NO_TRANS_UPDATE to remove wrong warnings
        Updates for new handler interface
        Use 0x%lx instead of %p (portability problem)
      sql/mysql_priv.h:
        Added OPTION_KEEP_LOG to indicate that we should replicate the binlog even on rollback
        Removed not used 'conds' argument to setup_tables
      sql/mysqld.cc:
        Indentation fixes and removed old comment
      sql/opt_range.cc:
        Update to new handler and bitmap interface.
        Fixed calls to cp_buffer_from_ref() and walk() (new argument).
        Create new temporary bitmaps for ror scans.
        (Needed because of handler changes and to get more accurate column bitmaps than before)
        Remove not needed file->ha_reset() call before file->close().
        Some trivial optimization and indentation fixes.
        Use Field->part_of_key_not_clustered() to check if field is part of a key, instead of looping over all key parts.
        
        Added flag 'in_ror_merged_scan' to allow ::get_next() to know that we need a special column bitmap to only fetch pointer to record.
        This is needed because ror scan uses the same TABLE object but different file objects, which creates problem for the column bitmap handling.
        (This is a temporary solution. A better one would be to allocate an own TABLE object for ROR scans)
        
        Optimized bitmap handling in ror scans:
        - Start bitmap at position 0, not 1
        - Use same bitmap size as in TABLE
        - Use table->read_set and table->write_set to create column bitmaps instead of looping over all fields in table
      sql/opt_range.h:
        Added 'in_ror_merged_scan' to indicate if we are doing a ROR scan
        Added temporary column bitmaps used in ROR scans
      sql/opt_sum.cc:
        Added get_ext_record_count() which is used in COUNT() optimization if handler has HA_HAS_RECORDS
        Note that we don't call this if handler has HA_STATS_RECORDS_IS_EXACT set.
      sql/protocol.cc:
        We need to mark columns as readable in ::store() as we sometimes return default value for fields to the user
      sql/records.cc:
        Updates for new handler interface
      sql/set_var.cc:
        Handle splitting OPTION_STATUS_NO_TRANS_UPDATE to two flags
      sql/share/errmsg.txt:
        Fixed wrong
      sql/sp.cc:
        Mark that we are using all columns for the proc table
        Update call to setup_tables() to use new prototype
      sql/sp_head.cc:
        Removed QQ comment
      sql/spatial.cc:
        Removed wrong QQ comment
      sql/sql_acl.cc:
        Mark that we need all columns for acl tables
        Supply memroot to some 'new' calls.
        Indentation fixes
      sql/sql_base.cc:
        set_query_id removed
        Ensure we call ha_reset() at end of each statement
        Mark read columns in read_set and changed columns in write_set (Before all columns was marked in read set)
        Fixed marking of some columns that was not proplerly marked before
        Maintain in TABLE->merge_keys set of all keys that are used in some way
        Removed not used 'conds' argument from setup_tables()
        Remove not used setting of 'dupp_field' in insert_fields()
        Added missing FN_LIBCHAR in mysql_rm_tmp_tables()
        (This has probably caused us to not properly remove temporary files after crash)
      sql/sql_bitmap.h:
        Added is_overlapping()
      sql/sql_class.cc:
        Slow_logs was not properly initialized, which could maybe cause extra/lost entries in slow log.
        set_query_id -> mark_used_columns
        Simpler variable usage in pack_row()  (cleanup)
        Moved some variable declartion at start of function for better code readability
      sql/sql_class.h:
        Added enum_mark_columns
        Updated comments
        Renamed dupp_field -> dup_field
        Added virtual function 'can_rollback_data()' to select_insert() to be used in CREATE ... SELECT to optimize use of OPTION_STATUS_NO_TRANS_UPDATE.
        (This fixes a bug in CREATE ... SELECT where we did give wrong warnings when using non transacational tables)
      sql/sql_delete.cc:
        Updates to new handler interface
        Call table->mark_columns_needed_for_delete() to allow us to put additional columns in column usage maps if handler so requires.
        Call table->prepare_for_position() to tell handler that we are going to call ha_position().
        Removed call to free_io_cache(). (io_cache is now removed in ha_reset()).
        Fixed calls to setup_tables()
      sql/sql_do.cc:
        Update call to setup_fields()
      sql/sql_handler.cc:
        Tell handler tables to always read all columns.
        Use temporary column map when storing value in field for later index usage
      sql/sql_help.cc:
        Makr all used fields to be read
        Update call to setup_fields()
      sql/sql_insert.cc:
        Tell handler we are going to update the auto_increment column
        dupp_field -> dup_field
        Set column usage bits for timestamp field.
        Call table->mark_columns_needed_for_insert() and table->mark_auto_increment_column()
        Removed not used argument from mysql_prepare_insert_check_table().
        
        If we get an duplicate row on insert, change column map to read and write all columns while retrying the operatation.
        This is required by the definition of REPLACE and also ensures that fields that are only part of UPDATE are properly handled.
        This fixed a bug in NDB and REPLACE where REPLACE wrongly copied some column values from the replaced row.
        
        Setup new bitmaps for delayed insert rows
        Remove reseting of next_number_fields as it will be reset on next call to handler_insert()
        
        Fixed usage of thd->options and OPTION_STATUS_NO_TRANS_UPDATE.
        The issue was that one should not to reset this flag as it may be set by a previous statement.
        The way it was now used caused us to loose some warnings and get other wrong warnings when using non transactional tables mixed with transactional.
        I fixed it by introducing 'select_insert::can_rollback_data' to inform send_error() that the given statement can be rolled back (which in case of CREATE TABLE can always be done)
        Don't close tables created with CREATE ... SELECT but keep them in the table cache.
        
        Moved out MY_HOOKS from inside function (better readability)
      sql/sql_load.cc:
        Update to use new handler and column marking interface
        Update using setup_tables()
      sql/sql_olap.cc:
        Update calls to setup_tables
        Use enums instead of constants to setup_fields()
      sql/sql_parse.cc:
        Handle OPTION_KEEP_LOG:
        - Set it on CREATE TEMPORARY TABLE / DROP TABLE
        - Reset it when OPTION_STATUS_NO_TRANS_UPDATE is reset
        - Don't set it for CREATE ... SELECT (this is handled in select_create class)
        Remove reseting of OPTION_STATUS_NO_TRANS_UPDATE in begin_trans() as this should already be reset.
        If in autocommit mode, reset OPTION_KEEP_LOG and OPTION_STATUS_NO_TRANS_UPDATE to not give warnings in future commands
      sql/sql_partition.cc:
        Update walk() usage
        Trivial indentation fixes
      sql/sql_plugin.cc:
        Mark all columns as used for plugins
      sql/sql_prepare.cc:
        Added assert to find out hidden bugs in character_set_client (got an error in debug binary when this not set correctly)
        Updates for new handler interface
        Update calls to setup_fields()
      sql/sql_repl.cc:
        Indentation fixes
      sql/sql_select.cc:
        Update call to setup_tables() and setup_fields()
        Remove some old disabled code
        Update to new hadler interface
        Indentation cleanups
        Added column bitmaps for temporary tables.
        Remove updating of the removed slots in the Field class
        Added TABLE argument to cp_buffer_from_ref() (To be able to install temporary column maps)
        For internal temporary tables, use handler::write_row(), handler::delete_row() and handler::update_row() instead of handler::ha_xxxx() for faster execution.
      sql/sql_select.h:
        Indentaition fixes.
        Install temporary column usage maps when needed
        Added TABLE element to cp_buffer_from_ref()
      sql/sql_show.cc:
        Update to new handler interface
        Mark all columns used for internal tables.
        Style fixes.
        Added support for 'future' ROW_TYPE_PAGES.
        Don't allocate TMP_TABLE_PARAM with calloc. The 'init()' function will initialize the structure properly.
      sql/sql_table.cc:
        Update to new handler interface
        Simple my_snprintf -> strmake()
        Changed some constants to defines
        Don't test for NULL in primary key (as we a couple of line above force the PRIMARY KEY to be NOT NULL)
        Change field->add_index to use field->flags & FIELD_IN_ADD_INDEX
        Mark all columns as used for ALTER TABLE
        Style fixes
        Update call to filesort()
      sql/sql_trigger.h:
        Added friend functions to be able to test if triggers exists for table we are going to insert/update or delete in.
      sql/sql_udf.cc:
        Mark all columns as used for udf system table.
      sql/sql_union.cc:
        Update call to walk()
        Update to new handler interface
      sql/sql_update.cc:
        Remove query_id argument from compare_record()
        Use column bitmaps instead of query_id.
        We can't use compare_records() to skip updates for handlers that returns a partial column set and the read_set doesn't cover all columns in the write set, because compare_record() can't in this case know if a not read column changed value.
        Update call to setup_fields()
        Using separate column read and write sets allows for easier checking of timestamp field was set by statement.
        Removed call to free_io_cache() as this is now done in ha_reset()
        Call table->mark_columns_needed_for_update() and table->prepare_for_position()
        Style fixes
      sql/sql_view.cc:
        Style fixes
      sql/table.cc:
        Remove implicitely include 'errno.h'
        Remove code for building normalized path, as this is now identical to 'path'
        Remove field->fieldnr
        Added update of field->part_of_key_not_clustered()
        Create column bitmaps in TABLE and TABLE_SHARE
        Don't setup a temporary MEM_ROOT object as a thread specific variable for the handler. Instead we send the to-be-used MEMROOT to get_new_handler()
        Update to new handler interface
        Update call to walk()
        Added new functions:
        - st_table::clear_column_bitmaps()
        - st_table::prepare_for_position()
        - st_table::mark_columns_used_by_index()
        - st_table::restore_column_maps_after_mark_index()
        - st_table::mark_columns_used_by_index_no_reset()
        - st_table::mark_auto_increment_column()
        - st_table::mark_columns_needed_for_delete()
        - st_table::mark_columns_needed_for_update()
        - st_table::mark_columns_needed_for_insert()
      sql/table.h:
        Moved column usage bitmaps from handler to TABLE
        Added to TABLE_SHARE all_set and column_bitmap_size
        Added to TABLE merge_keys, bitmap_init_values, def_read_set, def_write_set, tmp_set, read_set and write_set.
        Declared all new table column bitmap functions
        Added TABLE functions column_bitmaps_set(), column_bitmaps_set_no_signal(), use_all_columns() and default_column_bitmaps()
        Added functions: tmp_use_all_columns() and tmp_restore_column_map() to temporarly switch column bitmaps
        Added functions: dbug_tmp_use_all_columns() and dbug_tmp_restore_column_map() to temporarly switch column bitmaps to avoid asserts in Field::store() and Field::val().
      sql/tztime.cc:
        Mark all columns as used for timezone tables
      storage/archive/ha_archive.cc:
        Update to new handler interface
      storage/archive/ha_archive.h:
        Update to new handler interface
      storage/blackhole/ha_blackhole.cc:
        Update to new handler interface
      storage/blackhole/ha_blackhole.h:
        Update to new handler interface
        removed not needed flag HA_DUPP_POS
      storage/csv/ha_tina.cc:
        Update to new handler interface
      storage/csv/ha_tina.h:
        Update to new handler interface
      storage/example/ha_example.cc:
        Update to new handler interface
      storage/example/ha_example.h:
        Update to new handler interface
      storage/heap/hp_extra.c:
        Added heap_reset() (Required by new handler interface)
      storage/heap/hp_test2.c:
        Use heap_reset()
      storage/myisam/ft_boolean_search.c:
        Fixed compiler warning
      storage/myisam/mi_extra.c:
        Added mi_reset() (Required by new handler interface)
      storage/myisam/mi_search.c:
        Fixed DBUG_PRINT messages to use 0x%lx instead of %lx
      storage/myisam/mi_test2.c:
        Use mi_reset()
      storage/myisam/myisampack.c:
        Use mi_reset()
      storage/myisammrg/myrg_extra.c:
        Added myrg_reset() (Required by new handler interface)
      unittest/mysys/base64.t.c:
        Include my_global.h
        Don't include implictely include file 'stdlib.h'
      85a8e6ab
  16. 29 May, 2006 1 commit
    • unknown's avatar
      Update after merge to 5.0 · 734a2799
      unknown authored
      mysql-test/r/grant.result:
        Reorder test result
      mysql-test/t/grant.test:
        Add "use test"
      sql/sql_acl.cc:
        Add check if host is NULL
        Add check if grant_name->host.hostname is null
      734a2799
  17. 26 May, 2006 2 commits
    • unknown's avatar
      Bug #14875: Bad view DEFINER makes SHOW CREATE VIEW fail · cf69af37
      unknown authored
      When reading a view definition from a .frm file it was
      throwing a SQL error if the DEFINER user is not defined.
      Changed it to a warning to match the (documented) case
      when a view with undefined DEFINER user is created.
      
      
      mysql-test/r/view_grant.result:
        test case for the bug
      mysql-test/t/view_grant.test:
        test case for the bug
      sql/sql_acl.cc:
        Initialized the members to no privileges so even if
        the subsequent checks fail it will still initialize
        the security context.
      sql/table.cc:
        Turned the error of undefined DEFINER user in reading 
        a view definition to a warning.
      cf69af37
    • unknown's avatar
      BUG#18681: View privileges are broken · 89444fa0
      unknown authored
      The check for view security was lacking several points :
      1. Check with the right set of permissions : for each table ref that
      participates in a view there were the right credentials to use in it's
      security_ctx member, but these weren't used for checking the credentials.
      This makes hard enforcing the SQL SECURITY DEFINER|INVOKER property
      consistently.
      2. Because of the above the security checking for views was just ruled out
      in explicit ways in several places.
      3. The security was checked only for the columns of the tables that are
      brought into the query from a view. So if there is no column reference
      outside of the view definition it was not detecting the lack of access to
      the tables in the view in SQL SECURITY INVOKER mode.
      
      The fix below tries to fix the above 3 points.
      
      
      mysql-test/r/grant.result:
        removed nondeterminism (unspecified order) in some test output
      mysql-test/r/view_grant.result:
        Somewhat extended test case for the bug and similar queries.
      mysql-test/t/grant.test:
        removed nondeterminism (unspecified order) in some test output
      mysql-test/t/view_grant.test:
        Somewhat extended test case for the bug and similar queries.
      sql/mysql_priv.h:
        A wrapper for setup_tables that also checks access to the tables
      sql/sql_acl.cc:
        removed artificial security check stop and used the table ref's credentials.
      sql/sql_base.cc:
        a wrapper for setup_tables to check access to the tables
      sql/sql_delete.cc:
        wrapper called.
      sql/sql_insert.cc:
        wrapper called
      sql/sql_load.cc:
        wrapper called
      sql/sql_parse.cc:
        wrapper called and artificial check stop removed
      sql/sql_select.cc:
        wrapper called
      sql/sql_update.cc:
        wrapper called
      sql/table.cc:
        Mask table access to the view error as well.
      89444fa0
  18. 23 May, 2006 1 commit
    • unknown's avatar
      Bug#16297 In memory grant tables not flushed when users's hostname is "" · e5d39f69
      unknown authored
       - In function 'handle_grant_struct' when searching the memory structures for an 
         entry to modify, convert all entries here host.hostname is NULL to "" and compare that 
         with the host passed in argument "user_from".
       - A user created with hostname "" is stored in "mysql.user" table as host="" but when loaded into 
         memory it'll be stored as host.hostname NULL. Specifiying "" as hostname means
         that "any host" can connect. Thus is's correct to turn on allow_all_hosts
         when such a user is found. 
       - Review and fix other places where host.hostname may be NULL.
      
      
      mysql-test/init_db.sql:
        Rename: BitKeeper/deleted/.del-init_db.sql~af2dfeabaa348dd7 -> mysql-test/init_db.sql
      mysql-test/r/grant.result:
        Add test cases for users with hostname ""
      mysql-test/t/grant.test:
        Add test cases for users with hostname ""
         - Test create, grant and drop as well as connecting as the user with hostname "".
      sql/sql_acl.cc:
        Convert places where host.hostname is NULL to "" before using it.
      e5d39f69
  19. 15 May, 2006 1 commit
  20. 08 May, 2006 1 commit
  21. 06 May, 2006 1 commit
    • unknown's avatar
      Reapply fix for bug#16372 (Server crashes when test 'conc_sys' is running) · 3d45a067
      unknown authored
      after merge.
      
      Concurrent read and update of privilege structures (like simultaneous
      run of SHOW GRANTS and ADD USER) could result in server crash.
      
      Ensure that proper locking of ACL structures is done.
      
      No test case is provided because this bug can't be reproduced
      deterministically.
      
      
      sql/sql_acl.cc:
        Ensure that access to ACL data is protected by acl_cache->lock mutex.
        Use system_charset_info for host names consistently.
        Remove check_acl_user().  Use find_acl_user() instead.
      sql/sql_acl.h:
        Remove check_acl_user() declaration.
      sql/sql_parse.cc:
        Use is_acl_user() instead of check_acl_user().
      3d45a067
  22. 04 May, 2006 1 commit
    • unknown's avatar
      Bugs#17647: Trouble with "create database" · 3b2f3e71
      unknown authored
      Problem:
      if a user was granted privileges on database "d1",
      it also was able to act on "D1" (i.e. in upper case),
      even on Unix with case sensitive file system.
      
      Fix:
      Initialize grant hash to use binary comparison
      if lower_case_file_system is not set (on most unixes),
      and case insensitive comparison otherwise (Windows, MacOSX).
      
      
      sql/sql_acl.cc:
        Initialize hash to use binary comparison with case sensitive FS.
      mysql-test/include/have_case_sensitive_file_system.inc:
        New BitKeeper file ``mysql-test/include/have_case_sensitive_file_system.inc''
        Backporting from 5.1
      mysql-test/r/case_sensitive_file_system.require:
        New BitKeeper file ``mysql-test/r/case_sensitive_file_system.require''
        Backporting from 5.1
      mysql-test/r/lowercase_fs_off.result:
        Adding test case
      mysql-test/t/lowercase_fs_off.test:
        Adding test case
      3b2f3e71
  23. 27 Apr, 2006 1 commit
    • unknown's avatar
      Bug#16372: Server crashes when test 'conc_sys' is running · c14969b8
      unknown authored
      Concurrent read and update of privilege structures (like simultaneous
      run of SHOW GRANTS and ADD USER) could result in server crash.
      
      Ensure that proper locking of ACL structures is done.
      
      No test case is provided because this bug can't be reproduced
      deterministically.
      
      
      sql/sql_acl.cc:
        Ensure that access to ACL data is protected by acl_cache->lock mutex.
        Use system_charset_info for host names consistently.
      c14969b8
  24. 29 Mar, 2006 1 commit
    • unknown's avatar
      Fixed compiler and valgrind warnings · eda5d729
      unknown authored
      Added missing DBUG_xxx_RETURN statements
      Fixed some usage of not initialized variables (as found by valgrind)
      Ensure that we don't remove locked tables used as name locks from open table cache until unlock_table_names() are called.
      This was fixed by having drop_locked_name() returning any table used as a name lock so that we can free it in unlock_table_names()
      This will allow Tomas to continue with his work to use namelocks to syncronize things.
      
      Note: valgrind still produces a lot of warnings about using not initialized code and shows memory loss errors when running the ndb tests
      
      
      BitKeeper/etc/ignore:
        added mysql-test/r/*.log
      client/mysqltest.c:
        Change type of variables to get rid of compiler warnings
        More debugging
        Fix memory leak
      mysql-test/mysql-test-run.sh:
        Collect warnings about missing DBUG_RETURN statements
      mysql-test/r/lock_multi.result:
        Add test of new code
      mysql-test/r/ndb_condition_pushdown.result:
        Drop used tables before test
      mysql-test/t/lock_multi.test:
        Add test of new code
      mysql-test/t/ndb_condition_pushdown.test:
        Drop used tables before test
      mysql-test/valgrind.supp:
        Ignore 'safe' warnings from libz (when used with archive)
      sql/event.cc:
        More comments
        Simplify code
        Fixed memory leak found by valgrind
      sql/ha_archive.cc:
        Remove compiler warnings (Wrong handlerton structure and signed/unsigned comparison)
      sql/ha_berkeley.cc:
        Fixed compiler warning
      sql/ha_blackhole.cc:
        Fixed compiler warning
      sql/ha_federated.cc:
        Fixed compiler warning
      sql/ha_heap.cc:
        Fixed compiler warning
      sql/ha_myisam.cc:
        Fixed compiler warning
      sql/ha_myisammrg.cc:
        Fixed compiler warning
      sql/ha_ndbcluster.cc:
        Fixed compiler warnings
      sql/ha_partition.cc:
        Fixed compiler warning
        Fixed error noticed by valgrind in ha_partition::rnd_init()
      sql/handler.cc:
        Fixed compiler warning
      sql/handler.h:
        Fixed compiler warning
      sql/item.cc:
        Fixed compiler warning
      sql/item_xmlfunc.cc:
        Fixed warning from valgrind when calling memcpy with wrong address
      sql/lock.cc:
        More debugging
      sql/log.cc:
        Fixed compiler warning
        Indentation fixes
      sql/log.h:
        Fixed compiler warning
      sql/mysql_priv.h:
        Changed prototype for 'drop_locked_tables'
      sql/opt_range.cc:
        Indentation fix
      sql/password.c:
        Removed compiler warnings
      sql/set_var.cc:
        Fixed compiler warning
      sql/slave.cc:
        Fixed compiler warning
      sql/sp_head.cc:
        Fixed compiler warning
      sql/sql_acl.cc:
        Fixed compiler warning
      sql/sql_analyse.cc:
        Added missing DBUG_RETURN statements
      sql/sql_base.cc:
        Removed de-reference of not initialized pointer
        More comments
        drop_locked_tables() changed to not delete tables used for name locking
        Fixed compiler warnings
      sql/sql_delete.cc:
        Fixed usage of not initialized variable
        (deleted could be referenced in some not common error conditions)
      sql/sql_parse.cc:
        Added missing DBUG_VOID_RETURN
        Simplify code
      sql/sql_partition.cc:
        Fixed usage of wrong variable (noticed by valgrind)
      sql/sql_plugin.cc:
        Removed compiler warning
      sql/sql_show.cc:
        Removed compiler warning
      sql/sql_table.cc:
        Ensure that we don't remove locked tables used as name locks from open table cache until unlock_table_names() are called.
        This was fixed by having drop_locked_name() returning any table used as a name lock so that we can free it in unlock_table_names()
        This will allow Tomas to continue with his work to use namelocks to syncronize things.
        
        Fixed wrong test of 'table_type' (path_length could otherwise be accessed uninitialized)
        
        Remove compile warnings about not initialized variables.
      sql/sql_yacc.yy:
        Ensure that no_write_to_binlog is properly initialized
        (Was accessed uninitialized by partition code)
      sql/table.cc:
        Removed valgrind warnings (not fatal)
        Removed compiler warnings
      sql/tztime.cc:
        Removed valgrind warning
      storage/ndb/include/ndbapi/NdbIndexStat.hpp:
        Removed compiler warning
      eda5d729
  25. 20 Mar, 2006 1 commit
    • unknown's avatar
      Fix for bug #18113 "SELECT * FROM information_schema.xxx crashes server" · 2f0459df
      unknown authored
      Crash happened when one selected data from one of INFORMATION_SCHEMA
      tables and in order to build its contents server had to open view which
      used stored function and table or view on which one had not global or
      database-level privileges (e.g. had only table-level or had no
      privileges at all).
      
      The crash was caused by usage of check_grant() function, which assumes
      that either number of tables to be inspected by it is limited explicitly
      or table list used and thd->lex->query_tables_own_last value correspond
      to each other (the latter should be either 0 or point to next_global
      member of one of elements of this table list), in conditions when
      above assumptions were not true. This fix just explicitly limits
      number of tables to be inspected. Other negative effects which are
      caused by the fact that thd->lex->query_tables_own_last might not
      be set properly during processing of I_S tables are less disastrous
      and will be reported and fixed separetely.
      
      
      
      mysql-test/r/information_schema_db.result:
        Fix for bug #18113 "SELECT * FROM information_schema.xxx crashes server"
          test case
      mysql-test/t/information_schema_db.test:
        Fix for bug #18113 "SELECT * FROM information_schema.xxx crashes server"
          test case
      sql/sql_acl.cc:
          added note
      2f0459df
  26. 10 Mar, 2006 1 commit
    • unknown's avatar
      Cleanup SSL implementation · f366bff4
      unknown authored
      Remove duplicate code
      Merge common functions
      Enforce MySQL coding standard
      
      
      include/violite.h:
        Cleanup SSL implementation
      sql-common/client.c:
        Cleanup SSL implementation
      sql/mysql_priv.h:
        Cleanup SSL implementation
      sql/mysqld.cc:
        Cleanup SSL implementation
      sql/sql_acl.cc:
        Cleanup SSL implementation
      vio/vio.c:
        Cleanup SSL implementation
      vio/vio_priv.h:
        Cleanup SSL implementation
      vio/viossl.c:
        Cleanup SSL implementation
      vio/viosslfactories.c:
        Cleanup SSL implementation
      f366bff4
  27. 06 Mar, 2006 1 commit
    • unknown's avatar
      Fix for bug#14385 GRANT and mapping to correct user account problems · 03e64e80
      unknown authored
        Check if the host of table hash record exactly matches host from GRANT command
      
      
      mysql-test/r/grant.result:
        Fix for bug#14385 GRANT and mapping to correct user account problems
          test case
      mysql-test/t/grant.test:
        Fix for bug#14385 GRANT and mapping to correct user account problems
          test case
      03e64e80
  28. 27 Feb, 2006 1 commit
    • unknown's avatar
      Bug#17279 user with no global privs and with create priv in db can create databases · 0c8ea44f
      unknown authored
       - Use binary charset in acl_cache, to make searches case sensitive
       - Add testcase 
      
      
      mysql-test/r/grant2.result:
        Update test result
      mysql-test/t/grant2.test:
        Add test case for bug#17279, checking that user with access to TESTDB can't create TEStdb
      sql/sql_acl.cc:
        Use binary charset for the acl_cache to make the hash lookups case sensitive.
        Thus denying user with access to "TESTDB" access to "TEStdb"
      0c8ea44f
  29. 23 Feb, 2006 1 commit
    • unknown's avatar
      fix for bug #16400 · 548d1fcd
      unknown authored
      scripts/mysql_fix_privilege_tables.sh:
        fix the message as per #16399
      sql/sql_acl.cc:
        fix the priv per review comment by Serg
      548d1fcd
  30. 16 Feb, 2006 1 commit
    • unknown's avatar
      WL#3023 (Use locks in a statement-like manner): · 2b466692
      unknown authored
        Table maps are now written on aquiring locks to tables and released
        at the end of each logical statement.
      
      
      mysql-test/extra/binlog_tests/ctype_cp932.test:
        Disabling cleanup code
      mysql-test/r/binlog_row_blackhole.result:
        Result change
      mysql-test/r/binlog_row_mix_innodb_myisam.result:
        Result change
      mysql-test/r/binlog_stm_ctype_cp932.result:
        Result change
      mysql-test/r/rpl_row_charset.result:
        Result change
      mysql-test/r/rpl_row_create_table.result:
        Result change
      mysql-test/t/rpl_row_create_table.test:
        Binlog position change
      sql/handler.cc:
        Writing table map after external_lock()
      sql/handler.h:
        Adding class for table operation hooks.
      sql/log.cc:
        Adding binlog_write_table_map() to THD.
        Removing write_table_map() from MYSQL_LOG.
      sql/log.h:
        Minor interface changes to move table map writing.
      sql/log_event.cc:
        Removing pre-allocation of memory for buffers.
        Allowing ULONG_MAX as table id denoting an event to ignore (only used to transfer flags).
        Adding code to collect tables while seeing table maps and lock collected tables
        when seeing a binrow event.
        Debriding code as a result of the above changes.
      sql/log_event.h:
        Minor interface changes.
      sql/mysql_priv.h:
        Adding hooks argument to create_table_from_items().
      sql/parse_file.cc:
        Minor fix to avoid crash in debug printout.
      sql/rpl_rli.h:
        Adding list of tables to lock to RLI structure.
      sql/slave.cc:
        Using list of tables to lock from RLI structure.
      sql/sql_acl.cc:
        Removing redundant pending events flush.
      sql/sql_base.cc:
        Moving pending event flush.
        Using flag to guard to clear statement transaction only if this is the original
        open tables state.
      sql/sql_class.cc:
        Adding flag for open tables state.
        Removing redundant pending events flushes.
        Write a dummy event to indicate that the tables to lock should be emptied
        on the slave.
      sql/sql_class.h:
        Adding open tables state flags.
        Adding binlog_write_table_map() function to THD.
        Changes to select_create() to support new locking scheme.
      sql/sql_insert.cc:
        Adding rollback of statement transaction on error. It can now contain
        events after locking tables.
      sql/sql_load.cc:
        Removing redundant pending event flush.
      sql/sql_table.cc:
        Adding hooks argument to create_table_from_items().
        Calling prelock hook before starting to lock tables.
      sql/sql_update.cc:
        Removing a compiler warning.
      sql/table.h:
        Minor changes.
      2b466692
  31. 14 Feb, 2006 2 commits
    • unknown's avatar
      make declarations of mysql_db_table_last_check and mysql_db_table_fields · 6e31a591
      unknown authored
      visible event in libmysqld. fixes build problem.
      
      
      sql/sql_acl.cc:
        make declarations of mysql_db_table_last_check and mysql_db_table_fields
        visible event in libmysqld
      6e31a591
    • unknown's avatar
      - final fixes for bug#16431 (Events: An event which alters itself disappears) · ccad166d
      unknown authored
      - fix for bug#16423 (Events: SHOW CREATE EVENT doesn't work)
      - this Changeset commits makes CREATE/UPDATE/DELETE EVENT real DDL statements
        by committing the currently open transaction before they are executed.
      - this Changeset also fixes a trailing space problem since the very early days
        of the internal cron
      - adds sophisticated checking of whether mysql.event was tampered accidentally
        or with purpose by an user.
      - adds a lot of inline function documentation - documents everything left
        uncodumented
      - INTERVAL_XXXX to XXX in I_S.EVENTS.INTERVAL_FIELD
      
      WL#1034 (Internal CRON)
      
      
      mysql-test/r/events.result:
        update result
      mysql-test/t/events.test:
        add test cases for SHOW CREATE EVENT
        add test cases where the structure of mysql.event is changed and error reporting in this case
      sql/event.cc:
        - do a lot more checking on mysql.event whether it's valid
          introduced generic function table_check_intact() which can be used also
          for checking whether a system table (mysql.*) has been tampered by user
          and report an error in this case. The checking is quite strict, thus
          maybe some mechanism can be added later that loosens this like some
          session variable, for instance, i_am_aware_that_i_can_damage_my_data
          so the table will be opened nevertheless we think that it's not valid.
        - add evex_show_create_event(THD *thd, sp_name *spn, LEX_STRING definer)
        - document a loooot. not a single function left undocumented.
      sql/event.h:
        - add evex_show_create_event(THD *thd, sp_name *spn, LEX_STRING definer)
        - change get_show_create_event() to get_create_event()
        - add TABLE_FIELD_W_TYPE used by table_check_intact()
        - add event_timed::sql_mode so it can be used by show create event. currently
          always 0, will be fixed by a patch for another bug. At least makes the code
          of show create event complete.
      sql/event_executor.cc:
        - add evex_check_system_tables() that checks on boot and event
          main thread startup that mysql.db and mysql.user tables are correct.
        - document everything!
      sql/event_priv.h:
        remove a line
      sql/event_timed.cc:
        - implement SHOW CREATE EVENT
        - document undocumented functions!
      sql/share/errmsg.txt:
        - fix an error message and add two new
      sql/sql_acl.cc:
        - add mysql.db table definition to use by table_check_intact()
        - exchange some of the positions by numbers from mysql.db to enum names (see sql_acl.h)
      sql/sql_acl.h:
        - define the structure of mysql.db table
      sql/sql_parse.cc:
        - handle SQLCOM_SHOW_CREATE_EVENT
        - end the current transaction becase CREATE/UPDATE/DELETE EVENT is a DDL
          statement
      sql/sql_show.cc:
        - remove interval_type_to_name
        - use common function event_reconstruct_interval_expression()
          that reconstructs the expression given at create/alter, to some
          extent - interval of 2:62 MINUTE_SECOND will be reconstructed as
          interval of 3:02 MINUTE_SECOND!
      sql/sql_yacc.yy:
        init the definer of event_timed also when doing SHOW CREATE EVENT
        because it's needed for checking into mysql.event
      sql/table.cc:
        - remove stale code. only mysql.event should be a 'system_table'
        - add table_check_intact() to check the consistency of a table.
          mostly usable with mysql.xxx tables.
      sql/table.h:
        - export TABLE_FIELD_W_TYPE and table_check_intact() which are used for 
          checking the structure of a table. mostly usable for mysql.xxx tables.
      ccad166d
  32. 01 Feb, 2006 1 commit
    • unknown's avatar
      Fix for BUG#9412: Triggers: should have trigger privilege. · 159d445a
      unknown authored
      Implement table-level TRIGGER privilege to control access to triggers.
      Before this path global SUPER privilege was used for this purpose, that
      was the big security problem.
      
      In details, before this patch SUPER privilege was required:
        - for the user at CREATE TRIGGER time to create a new trigger;
        - for the user at DROP TRIGGER time to drop the existing trigger;
        - for the definer at trigger activation time to execute the trigger (if the
          definer loses SUPER privilege, all its triggers become unavailable);
      
      This patch changes the behaviour in the following way:
        - TRIGGER privilege on the subject table for trigger is required:
          - for the user at CREATE TRIGGER time to create a new trigger;
          - for the user at DROP TRIGGER time to drop the existing trigger;
          - for the definer at trigger activation time to execute the trigger
            (if the definer loses TRIGGER privilege on the subject table, all its
            triggers on this table become unavailable).
        - SUPER privilege is still required:
          - for the user at CREATE TRIGGER time to explicitly set the trigger
            definer to the user other than CURRENT_USER().
      
      When the server works with database of the previous version (w/o TRIGGER
      privilege), or if the database is being upgraded from the previous versions,
      TRIGGER privilege is granted to whose users, who have CREATE privilege.
      
      
      mysql-test/r/grant.result:
        Updated the result file after adding TRIGGER privilege.
      mysql-test/r/information_schema.result:
        Updated the result file after adding TRIGGER privilege.
      mysql-test/r/lowercase_table_grant.result:
        Updated the result file after adding TRIGGER privilege.
      mysql-test/r/ps.result:
        Updated the result file after adding TRIGGER privilege.
      mysql-test/r/sp.result:
        Updated the result file after adding TRIGGER privilege.
      mysql-test/r/trigger-compat.result:
        Updated the result file after adding TRIGGER privilege.
      mysql-test/r/trigger-grant.result:
        Updated the result file after adding TRIGGER privilege.
      mysql-test/t/trigger-compat.test:
        Grant table-level TRIGGER privilege instead of global SUPER one.
      mysql-test/t/trigger-grant.test:
        1. Grant table-level TRIGGER privilege instead of global SUPER one.
        2. Updated the test case to check that SUPER is required to specify
        the user other than the current as a definer.
      scripts/mysql_create_system_tables.sh:
        Added TRIGGER privilege.
      scripts/mysql_fix_privilege_tables.sql:
        Added TRIGGER privilege.
      sql/sql_acl.cc:
        Added TRIGGER privilege.
      sql/sql_acl.h:
        Added TRIGGER privilege.
      sql/sql_show.cc:
        Added TRIGGER privilege.
      sql/sql_trigger.cc:
        Check TRIGGER privilege instead of SUPER.
      sql/sql_yacc.yy:
        Added TRIGGER privilege.
      159d445a
  33. 26 Jan, 2006 1 commit
    • unknown's avatar
      Fixed BUG#16303: erroneus stored procedures and functions should be droppable · 5dd21704
      unknown authored
        Use a special lookup function for DROP, which doesn't attempt to parse the
        definition.
      
      
      mysql-test/r/sp-destruct.result:
        Updated test result for BUG#16303.
      mysql-test/t/sp-destruct.test:
        Added test case for BUG#16303.
      sql/sp.cc:
        New function sp_routine_exists_in_table() for DROP PROCEDURE/FUNCTION; which doesn't
        want to parse the definition, only know if it exists.
        
        Renamed sp_exists_routine to sp_exist_routines and added comment,
        and changed the misnamed parameter/variable 'tables'/'table' to
        'routines'/'routine'.
      sql/sp.h:
        New function sp_routine_exists_in_table() for DROP PROCEDURE/FUNCTION.
        
        Renamed sp_exists_routine to sp_exist_routines,
        and changed the misnamed parameter 'tables' to 'routines'.
      sql/sql_acl.cc:
        Call to sp_exists_routine() renamed to sp_exist_routines().
      sql/sql_parse.cc:
        Use the new sp_routine_exists_in_table() instead of sp_find_routine(), since we don't
        want the routine definition parsed when doing DROP PROCEDURE/FUNCTION.
      5dd21704
  34. 10 Jan, 2006 1 commit
    • unknown's avatar
      Fix for BUG#15110: mysqldump --triggers: does not include DEFINER clause · fffe9d4f
      unknown authored
      There are two main idea of this fix:
        - introduce a common function for server and client to split user value
          (<user name>@<host name>) into user name and host name parts;
        - dump DEFINER clause in correct format in mysqldump.
      
      
      BitKeeper/etc/ignore:
        added client/my_user.c libmysqld/my_user.c sql/my_user.c
      client/Makefile.am:
        Use my_user.c in linking of mysqldump executable.
      client/mysqldump.c:
        Fix for BUG#15110(mysqldump --triggers: does not include DEFINER clause)
      include/Makefile.am:
        Add my_user.c
      include/mysql_com.h:
        Introduce a constant for max user length.
      libmysqld/Makefile.am:
        Add my_user.c
      mysql-test/r/mysqldump.result:
        Update result file.
      sql-common/Makefile.am:
        Add my_user.c
      sql/Makefile.am:
        Add my_user.c
      sql/sp.cc:
        Use constant for max user length.
      sql/sp_head.cc:
        Use common function to parse user value.
      sql/sql_acl.cc:
        Use constant for max user length.
      sql/sql_parse.cc:
        Use constant for max user length.
      sql/sql_show.cc:
        Use constant for max user length.
      sql/sql_trigger.cc:
        Use constant for max user length.
      include/my_user.h:
        A header file for parse_user().
      sql-common/my_user.c:
        A new file for parse_user() implementation.
      fffe9d4f
  35. 09 Jan, 2006 1 commit
  36. 05 Jan, 2006 1 commit
    • unknown's avatar
      Review fixes of new pushed code · 43886f1d
      unknown authored
      - Fixed tests
      - Optimized new code
      - Fixed some unlikely core dumps
      - Better bug fixes for:
        - #14397 - OPTIMIZE TABLE with an open HANDLER causes a crash
        - #14850 (ERROR 1062 when a quering a view using a Group By on a column that can be null
      
      
      mysql-test/r/create.result:
        Update results after removing wrong warnings for CREATE ... SELECT
        New tests
      mysql-test/r/handler.result:
        Drop used tables
      mysql-test/r/kill.result:
        Make test portable
      mysql-test/r/mysqlshow.result:
        Drop tables used by previous test
      mysql-test/r/trigger.result:
        Reuse old procedure name
      mysql-test/r/view.result:
        Extra tests
      mysql-test/t/create.test:
        New tests to test fix of removing wrong warnings for CREATE ... SELECT
      mysql-test/t/disabled.def:
        Enable 'kill' test (should now be portable)
      mysql-test/t/handler.test:
        Drop used tables
      mysql-test/t/kill.test:
        Make test portable even if kill doesn't work at once
      mysql-test/t/mysqlshow.test:
        Drop tables used by previous test
      mysql-test/t/trigger.test:
        Reuse old procedure name
      mysql-test/t/view.test:
        Extra tests
      sql/field.cc:
        Removed compiler warning
      sql/ha_federated.cc:
        my_snprintf -> strmake()
        (Simple optimization)
      sql/ha_ndbcluster.cc:
        Indentation cleanups and trival optimization
      sql/item.cc:
        Moved save_org_in_field() to item.cc to make it easier to test
        Remove setting of null_value as this is not needed
      sql/item.h:
        Moved save_org_in_field() to item.cc to make it easier to test
      sql/log_event.cc:
        Remove inline of slave_load_file_stem()
        Added 'extension' parameter to slave_load_file_stem() to get smaller code
        Removed not critical (or needed) DBUG_ASSERT()'s
        Cleaned up usage of slave_load_file_stem() to not depend on constant string lengths
        Indentation fixes
      sql/opt_range.cc:
        Moved code from declaration to function body
        (To make it more readable)
      sql/parse_file.cc:
        Fixed DBUG_PRINT
      sql/sp.cc:
        Simple cleanups
        - Removed not needed {} level
        - Ensure saved variables starts with old_
      sql/sp_head.cc:
        Indentation fixes
        Remove core dump when using --debug when m_next_cached_sp == 0
        Fixed compiler warnings
        Trivial optimizations
      sql/sp_head.h:
        Changed argument to set_definer() to const
        Added THD argument to recursion_level_error() to avoid call to current_thd
      sql/sql_acl.cc:
        Removed not needed test (first_not_own_table is the guard)
      sql/sql_base.cc:
        Removed extra empty line
      sql/sql_handler.cc:
        Don't test table version in mysql_ha_read() as this is already tested in lock_tables()
        Moved call to insert_fields to be after lock_table() to guard aganst reopen of tables
        (Better fix for Bug#14397 - OPTIMIZE TABLE with an open HANDLER causes a crash)
      sql/sql_insert.cc:
        Mark fields that are set in CREATE ... SELECT as used
        (Removed wrong warnings about field not having a default value)
      sql/sql_parse.cc:
        Removed not needed test of 'tables' (first_not_own_table is the guard)
        Simplify code
      sql/sql_select.cc:
        Use group->field to check if value is null instead of item called by 'save_org_in_field'
        This is a better bug fix for #14850 (ERROR 1062 when a quering a view using a Group By on a column that can be null)
      sql/sql_trigger.cc:
        Move sql_modes_parameters outside of function
        Indentation fixes
        Fixed compiler warning
        Ensure that thd->lex->query_tables_own_last is set properly before calling check_table_access()
        (This allows us to remove the extra test in check_grant() and check_table_access())
      43886f1d
  37. 04 Jan, 2006 2 commits
    • unknown's avatar
      Post-merge fixes. · 2cc1ee47
      unknown authored
      sql/sql_acl.cc:
        A post-merge fix.
      sql/sql_base.cc:
        A post-merge fix.
      2cc1ee47
    • unknown's avatar
      A fix for Bug#7209 "Client error with "Access Denied" on updates · af13158a
      unknown authored
      when high concurrency": remove HASH::current_record and make it
      an external search parameter, so that it can not be the cause of a 
      race condition under high concurrent load.
      The bug was in a race condition in table_hash_search,
      when column_priv_hash.current_record was overwritten simultaneously
      by multiple threads, causing the search for a suitable grant record
      to fail.
      No test case as the bug is repeatable only under concurrent load.
      
      
      include/hash.h:
        - remove current_record from HASH, instead modify hash_first,
        hash_next to accept HASH_SEARCH_STATE as an IN/OUT parameter
      mysys/hash.c:
        - remove HASH::current_record
        - change declarations of functions that use HASH in read-only mode
          to accept const HASH * instead of HASH *. 
        - implement hash_search; move the old implementation of hash_search
        to hash_first
      mysys/testhash.c:
        - adjust the test case to changed function declarations
      sql/lock.cc:
        - adjust to changed declarations of hash_search, hash_next
      sql/sql_acl.cc:
        - adjust to changed declarations of hash_search, hash_next
      sql/sql_base.cc:
        - adjust to changed declarations of hash_search, hash_nex
      sql/sql_cache.cc:
        - adjust to a changed declaration of hash_replace
      af13158a