1. 14 May, 2007 1 commit
    • unknown's avatar
      Fix for bug #28415 "Some ALTER TABLE statements no longer work under LOCK · 48b0f260
      unknown authored
      TABLES" and failures of alter_table.test on Windows which occured after
      pushing fix for bugs #20662, #20903, #24508, #24738 (various problems
      with CREATE TABLE SELECT).
      
      ALTER TABLE statements which were handled using "fast" alter table
      optimization were not properly working under LOCK TABLES if table
      was transactional (for all table types under Windows).
      
      Code implementing "fast" version of ALTER TABLE tried to open and
      lock table using open_ltable() after renaming .FRM files (which
      corresponds to renaming tables in normal case) in some cases
      (for transactional tables or on Windows). This caused problems
      under LOCK TABLES and conflicted with name-lock taken by 
      ALTER TABLE RENAME on target tables.
      
      This patch solves this issue by using reopen_name_locked_table()
      instead of open_ltable().
      
      
      mysql-test/include/mix1.inc:
        Added test for bug #28415 "Some ALTER TABLE statements no longer work
        under LOCK TABLES" and minimal coverage for fast ALTER TABLE behaviour
        for transactional tables.
      mysql-test/r/innodb_mysql.result:
        Added test for bug #28415 "Some ALTER TABLE statements no longer work
        under LOCK TABLES" and minimal coverage for fast ALTER TABLE behaviour
        for transactional tables.
      sql/sql_table.cc:
        mysql_alter_table():
          Fixed handling of transactional tables (and all tables on Windows)
          by "fast" ALTER TABLE.
          Code implementing "fast" version of ALTER TABLE tried to open and
          lock table using open_ltable() after renaming .FRM files (which
          corresponds to renaming tables in normal case) for such tables.
          This caused problems under LOCK TABLES and conflicted with name-lock
          taken by ALTER TABLE RENAME on target tables. We solve this issue by
          using reopen_name_locked_table() instead of open_ltable().
      48b0f260
  2. 11 May, 2007 9 commits
    • unknown's avatar
      Merge mockturtle.local:/home/dlenev/src/mysql-5.0-cts-3 · 7a2308f2
      unknown authored
      into  mockturtle.local:/home/dlenev/src/mysql-5.1-cts-3
      
      
      sql/sp_head.cc:
        Auto merged
      7a2308f2
    • unknown's avatar
    • unknown's avatar
      Merge mockturtle.local:/home/dlenev/src/mysql-5.0-cts-3 · 1b7deb64
      unknown authored
      into  mockturtle.local:/home/dlenev/src/mysql-5.1-cts-3
      
      
      mysql-test/r/trigger.result:
        Auto merged
      mysql-test/t/trigger.test:
        Auto merged
      sql/sql_handler.cc:
        Auto merged
      sql/sql_parse.cc:
        Auto merged
      sql/sql_trigger.cc:
        Auto merged
      sql/sql_yacc.yy:
        Auto merged
      mysql-test/r/create.result:
        Extended test coverage for CREATE TABLE ... SELECT is already in 5.1.
      mysql-test/t/create.test:
        Extended test coverage for CREATE TABLE ... SELECT is already in 5.1.
      sql/lock.cc:
        Using 5.1 version of lock_table_name() function.
      sql/mysql_priv.h:
        5.1 version of mysql_priv.h already contains all needed declarations for fix for bugs #20662, #20903, #24738, #24508
      sql/sql_base.cc:
        5.1 version of sql_base.cc already contains all needed changes for fix for bugs #20662, #20903, #24738, #24508
      sql/sql_insert.cc:
        5.1 version of sql_base.cc already contains all needed changes for fix for bugs #20662, #20903, #24738, #24508
      sql/sql_table.cc:
        5.1 version of sql_table.cc already contains all needed changes for fix for bugs #20662, #20903, #24738, #24508
      sql/sql_prepare.cc:
        Manual merge.
      sql/table.h:
        Manual merge.
      1b7deb64
    • unknown's avatar
      Merge bk-internal.mysql.com:/home/bk/mysql-5.0-runtime · 64a1a117
      unknown authored
      into  mockturtle.local:/home/dlenev/src/mysql-5.0-cts-3
      
      
      sql/mysql_priv.h:
        Auto merged
      sql/sql_insert.cc:
        Auto merged
      sql/sql_prepare.cc:
        Auto merged
      sql/sql_yacc.yy:
        Auto merged
      64a1a117
    • unknown's avatar
      Merge bk-internal.mysql.com:/home/bk/mysql-5.1-runtime · f56632f2
      unknown authored
      into  mockturtle.local:/home/dlenev/src/mysql-5.1-cts-3
      
      
      sql/mysql_priv.h:
        Auto merged
      sql/sql_insert.cc:
        Auto merged
      sql/sql_parse.cc:
        Auto merged
      sql/sql_prepare.cc:
        Auto merged
      sql/sql_yacc.yy:
        Auto merged
      f56632f2
    • unknown's avatar
      Fix for: · bf3c9277
      unknown authored
        Bug #20662 "Infinite loop in CREATE TABLE IF NOT EXISTS ... SELECT
                    with locked tables"
        Bug #20903 "Crash when using CREATE TABLE .. SELECT and triggers"
        Bug #24738 "CREATE TABLE ... SELECT is not isolated properly"
        Bug #24508 "Inconsistent results of CREATE TABLE ... SELECT when
                    temporary table exists"
      
      Deadlock occured when one tried to execute CREATE TABLE IF NOT
      EXISTS ... SELECT statement under LOCK TABLES which held
      read lock on target table.
      Attempt to execute the same statement for already existing
      target table with triggers caused server crashes.
      Also concurrent execution of CREATE TABLE ... SELECT statement
      and other statements involving target table suffered from
      various races (some of which might've led to deadlocks).
      Finally, attempt to execute CREATE TABLE ... SELECT in case
      when a temporary table with same name was already present
      led to the insertion of data into this temporary table and
      creation of empty non-temporary table.
       
      All above problems stemmed from the old implementation of CREATE
      TABLE ... SELECT in which we created, opened and locked target
      table without any special protection in a separate step and not
      with the rest of tables used by this statement.
      This underminded deadlock-avoidance approach used in server
      and created window for races. It also excluded target table
      from prelocking causing problems with trigger execution.
      
      The patch solves these problems by implementing new approach to
      handling of CREATE TABLE ... SELECT for base tables.
      We try to open and lock table to be created at the same time as
      the rest of tables used by this statement. If such table does not
      exist at this moment we create and place in the table cache special
      placeholder for it which prevents its creation or any other usage
      by other threads.
      We still use old approach for creation of temporary tables.
      
      Note that we have separate fix for 5.0 since there we use slightly
      different less intrusive approach.
      
      
      mysql-test/r/create.result:
        Extended test coverage for CREATE TABLE ... SELECT. In particular added
        tests for bug #24508 "Inconsistent results of CREATE TABLE ... SELECT
        when temporary table exists" and bug #20662 "Infinite loop in CREATE
        TABLE IF NOT EXISTS ... SELECT with locked tables".
      mysql-test/r/trigger.result:
        Added test case for bug #20903 "Crash when using CREATE TABLE .. SELECT
        and triggers"
      mysql-test/t/create.test:
        Extended test coverage for CREATE TABLE ... SELECT. In particular added
        tests for bug #24508 "Inconsistent results of CREATE TABLE ... SELECT
        when temporary table exists" and bug #20662 "Infinite loop in CREATE
        TABLE IF NOT EXISTS ... SELECT with locked tables".
      mysql-test/t/trigger.test:
        Added test case for bug #20903 "Crash when using CREATE TABLE .. SELECT
        and triggers"
      sql/lock.cc:
        Now for creation of name-lock placeholder lock_table_name() uses
        auxiliary function table_cache_insert_placeholder().
      sql/mysql_priv.h:
        Removed declaration of non-existing build_table_path() routine.
        The former mysql_create_table_internal() was renamed to
        mysql_create_table_no_lock() and now exposed to other modules to
        give them opportunity of creation of tables in cases when name-lock
        is already obtained.
        reopen_name_locked_table() now has 3rd argument which controls linking
        in of table being opened into THD::open_tables (this is useful in
        cases when placeholder used for name-locking is already linked into
        this list).
        Added declaration of auxiliary function table_cache_insert_placeholder()
        which is used for creation of table placeholders for name-locking.
        Added declaration of lock_table_name_if_not_cached() which can be
        used to take an exclusive name-lock on table if there are no records
        for it in table cache.
        Changed signature of unlink_open_table() function to simplify its use
        and make it useful for table placeholders and tables that are only open.
        Added auxiliary drop_open_table() routine.
        Moved declaration of refresh_version to table.h header to make it
        accessible from inline methods of TABLE class.
        MYSQL_OPEN_IGNORE_LOCKED_TABLES flag is no longer used. Instead
        MYSQL_OPEN_TEMPORARY_ONLY option was added.
      sql/sql_base.cc:
        Added support for the new approach to the handling of CREATE TABLE
        ... SELECT for base tables.
        
        Now we try to open and lock table to be created at the same time as
        the rest of tables used by this statement. If such table does not
        exist at this moment we create and place in the table cache special
        placeholder for it which prevents its creation or any other usage
        by other threads.
        
        Note significant distinctions of this placeholder from the placeholder
        used for normal name-lock: 1) It is treated like open table by other
        name-locks so it does not allow name-lock taking operations like DROP
        TABLE or RENAME TABLE to proceed. 2) it is linked into THD::open_tables
        list and automatically removed during close_thread_tables() call
          
        open_tables():
          Implemented logic described above. To do this added
          auxiliary check_if_table_exists() function.
          Removed support for MYSQL_OPEN_IGNORE_LOCKED_TABLES option
          which is no longer used.
          Added MYSQL_OPEN_TEMPORARY_ONLY which is used to restrict
          search for temporary tables only.
        close_cached_tables()/close_thread_table()/reopen_tables()/
        close_old_data_files()/table_is_used()/remove_table_from_cache():
          Added support for open placeholders (note that we also use them
          when we need to re-open tables during flush).
        unlink_open_table():
          Changed function signature to simplify its use and to make
          useful for open placeholders and tables which are only
          open and not locked.
        Added auxiliary drop_open_table() routine.
        reopen_name_locked_table():
          Now has 3rd argument which controls linking in of table being
          opened into THD::open_tables (this is useful in cases when
          placeholder used for name-locking is already linked into
          this list).
        Added auxiliary table_cache_insert_placeholder() routine which
        simplifies creation of placeholders used for name-locking.
        Added lock_table_name_if_not_cached() which can be used to take
        an exclusive name-lock on table if there are no records for it
        in table cache.
      sql/sql_handler.cc:
        Adjusted mysql_ha_mark_tables_for_reopen() routine to properly
        handle placeholders which now can be linked into open tables
        list.
      sql/sql_insert.cc:
        Introduced new approach to handling of base tables in CREATE TABLE
        ... SELECT statement.
        
        Now we try to open and lock table to be created at the same time as
        the rest of tables used by this statement. If such table does not
        exist at this moment we create and place in the table cache special
        placeholder for it which prevents its creation or any other usage
        by other threads. By doing this we avoid races which existed with
        previous approach in which we created, opened and locked target in
        separate step without any special protection.
        This also allows properly calculate prelocking set in cases when
        target table already exists and has some on insert triggers.
        
        Note that we don't employ the same approach for temporary tables
        (this is okay as such tables are unaffected by other threads).
        
        Changed create_table_from_items() and methods of select_create
        class to implement this approach.
      sql/sql_parse.cc:
        The new approach to handling of CREATE TABLE ... SELECT for
        base tables assumes that all tables (including table to be
        created) are opened and (or) locked at the same time.
        So in cases when we create base table we have to pass to
        open_and_lock_tables() table list which includes target table.
      sql/sql_prepare.cc:
        The new approach to handling of CREATE TABLE ... SELECT for
        base tables assumes that all tables (including table to be
        created) are opened and (or) locked at the same time.
        So in cases when we create base table we have to pass to
        open_and_lock_tables() table list which includes target table.
      sql/sql_table.cc:
        Changed mysql_create_table(), mysql_create_like_table() and
        mysql_alter_table() (in rename case) to obtain exclusive name-lock
        on the non-temporary table which is going to be created (to which
        we going to rename). This ensures that not only destination table
        doesn't exist on disk but also that there are no placeholder in 
        table cache for it (i.e. there is no CREATE TABLE ... SELECT operation
        in progress for it). Note that to avoid deadlocks while taking these
        name-locks this code assumes that existence of any record for table in
        table cache (even name-lock) means that table exists. Altough such
        check can lead to false positives these should occur only in case of
        highly concurrent DDL operations on the table and should not break
        binary logging.
        
        Renamed mysql_create_table_internal() to mysql_create_table_no_lock()
        and made it accessible from other files to give them ability to create
        table in situation when name-lock is already obtained or not relevant.
        
        Adjusted calls to reopen_name_locked_table(), which now takes
        extra argument, which controls linking of open table into
        THD::open_tables list.
        
        Removed redundant setting of table's 'version' field before calls
        to close_cached_table(). This function will set it to 0 itself
        anyway.
      sql/sql_trigger.cc:
        reopen_name_locked_tables() now has one more argument which controls
        linking of opened table into the THD::open_tables list.
      sql/sql_yacc.yy:
        The new approach to handling of CREATE TABLE ... SELECT statement
        for base tables assumes that all tables including table to be
        created are open and (or) locked at the same time. Therefore
        we need to set correct lock for target table.
      sql/table.h:
        Moved declaration of refresh_version variable from mysql_priv.h
        to make it accessible from inline methods of TABLE class.
        Renamed TABLE::locked_by_flush member to open_placeholder since
        now it is also used for taking exclusive name-lock and not only
        by flush. 
        Introduced TABLE::is_name_opened() helper method which can be used
        to distinguish TABLE instances corresponding to open tables or
        placeholders for them from closed instances (e.g. due to their old
        version). Also introduced TABLE::needs_reopen_or_name_lock() helper
        which allows to check if TABLE instance corresponds to outdated
        version of table or to name-lock placeholder.
        Introduced TABLE_LIST::create member which marks elements of
        table list corresponds to the table to be created.
        Adjusted TABLE_LIST::placeholder() method to take into account 
        name-lock placeholders for tables to be created (this, for example,
        allows to properly handle such placeholders in lock_tables()).
        Finally, moved currently unused TABLE::open_next/open_prev
        members under ifdef NOT_YET.
      mysql-test/r/create_select-big.result:
        New BitKeeper file ``mysql-test/r/create_select-big.result''
      mysql-test/t/create_select-big.test:
        New BitKeeper file ``mysql-test/t/create_select-big.test''
      bf3c9277
    • unknown's avatar
      Fix for: · 1f27a7a8
      unknown authored
        Bug #20662 "Infinite loop in CREATE TABLE IF NOT EXISTS ... SELECT
                    with locked tables"
        Bug #20903 "Crash when using CREATE TABLE .. SELECT and triggers"
        Bug #24738 "CREATE TABLE ... SELECT is not isolated properly"
        Bug #24508 "Inconsistent results of CREATE TABLE ... SELECT when
                    temporary table exists"
       
      Deadlock occured when one tried to execute CREATE TABLE IF NOT
      EXISTS ... SELECT statement under LOCK TABLES which held
      read lock on target table.
      Attempt to execute the same statement for already existing
      target table with triggers caused server crashes.
      Also concurrent execution of CREATE TABLE ... SELECT statement
      and other statements involving target table suffered from
      various races (some of which might've led to deadlocks).
      Finally, attempt to execute CREATE TABLE ... SELECT in case
      when a temporary table with same name was already present
      led to the insertion of data into this temporary table and
      creation of empty non-temporary table.
       
      All above problems stemmed from the old implementation of CREATE
      TABLE ... SELECT in which we created, opened and locked target
      table without any special protection in a separate step and not
      with the rest of tables used by this statement.
      This underminded deadlock-avoidance approach used in server
      and created window for races. It also excluded target table
      from prelocking causing problems with trigger execution.
        
      The patch solves these problems by implementing new approach to
      handling of CREATE TABLE ... SELECT for base tables.
      We try to open and lock table to be created at the same time as
      the rest of tables used by this statement. If such table does not
      exist at this moment we create and place in the table cache special
      placeholder for it which prevents its creation or any other usage
      by other threads.
      
      We still use old approach for creation of temporary tables.
      
      Also note that we decided to postpone introduction of some tests
      for concurrent behaviour of CREATE TABLE ... SELECT till 5.1.
      The main reason for this is absence in 5.0 ability to set @@debug
      variable at runtime, which can be circumvented only by using several
      test files with individual .opt files. Since the latter is likely
      to slowdown test-suite unnecessary we chose not to push this tests
      into 5.0, but run them manually for this version and later push
      their optimized version into 5.1
      
      
      mysql-test/r/create.result:
        Extended test coverage for CREATE TABLE ... SELECT. In particular added
        tests for bug #24508 "Inconsistent results of CREATE TABLE ... SELECT
        when temporary table exists" and bug #20662 "Infinite loop in CREATE
        TABLE IF NOT EXISTS ... SELECT with locked tables".
      mysql-test/r/trigger.result:
        Added test case for bug #20903 "Crash when using CREATE TABLE .. SELECT
        and triggers"
      mysql-test/t/create.test:
        Extended test coverage for CREATE TABLE ... SELECT. In particular added
        tests for bug #24508 "Inconsistent results of CREATE TABLE ... SELECT
        when temporary table exists" and bug #20662 "Infinite loop in CREATE
        TABLE IF NOT EXISTS ... SELECT with locked tables".
      mysql-test/t/trigger.test:
        Added test case for bug #20903 "Crash when using CREATE TABLE .. SELECT
        and triggers"
      sql/lock.cc:
        Now for creation of name-lock placeholder in lock_table_name() we use
        auxiliary function table_cache_insert_placeholder().
      sql/mysql_priv.h:
        Made build_table_path() function available outside of sql_table.cc file.
        reopen_name_locked_table() now has 3rd argument which controls linking
        in of table being opened into THD::open_tables (this is useful in
        cases when placeholder used for name-locking is already linked into
        this list).
        Added declaration of auxiliary function table_cache_insert_placeholder()
        which is used for creation of table placeholders for name-locking.
        Added declaration of table_cache_has_open_placeholder() function which
        can be used for checking if table cache contains an open placeholder for
        the table and if this placeholder was created by another thread.
        (This function is needed only in 5.0 where we use it in various versions
         of CREATE TABLE in order to protect it from concurrent CREATE TABLE
         ... SELECT operations for the table. Starting from 5.1 we use different
         approach so it is going to be removed there).
        Made close_old_data_files() static within sql_base.cc file. 
        Added auxiliary drop_open_table() routine.
        Moved declaration of refresh_version to table.h header to make it
        accessible from inline methods of TABLE class.
        MYSQL_OPEN_IGNORE_LOCKED_TABLES flag is no longer used. Instead
        MYSQL_OPEN_TEMPORARY_ONLY option was added.
      sql/sql_base.cc:
        Added support for the new approach to the handling of CREATE TABLE
        ... SELECT for base tables.
        
        Now we try to open and lock table to be created at the same time as
        the rest of tables used by this statement. If such table does not
        exist at this moment we create and place in the table cache special
        placeholder for it which prevents its creation or any other usage
        by other threads.
        
        Note significant distinctions of this placeholder from the placeholder
        used for normal name-lock: 1) It is treated like open table by other
        name-locks so it does not allow name-lock taking operations like DROP
        TABLE or RENAME TABLE to proceed. 2) it is linked into THD::open_tables
        list and automatically removed during close_thread_tables() call.
        
        open_tables():
          Implemented logic described above. To do this added
          auxiliary check_if_table_exists() function.
          Removed support for MYSQL_OPEN_IGNORE_LOCKED_TABLES option
          which is no longer used.
          Added MYSQL_OPEN_TEMPORARY_ONLY which is used to restrict
          search for temporary tables only.
        close_cached_tables()/close_thread_table()/reopen_tables()/
        close_old_data_files()/table_is_used()/remove_table_from_cache():
          Added support for open placeholders (note that we also use them
          when we need to re-open tables during flush).
        Added auxiliary drop_open_table() routine.
        reopen_name_locked_table():
          Now has 3rd argument which controls linking in of table being
          opened into THD::open_tables (this is useful in cases when
          placeholder used for name-locking is already linked into
          this list).
        Added auxiliary table_cache_insert_placeholder() routine which
        simplifies creation of placeholders used for name-locking.
        Added table_cache_has_open_placeholder() function which can be
        used for checking if table cache contains an open placeholder for
        the table and if this placeholder was created by another thread.
        (This function is needed only in 5.0 where we use it in various versions
         of CREATE TABLE in order to protect it from concurrent CREATE TABLE
         ... SELECT operations for the table. Starting from 5.1 we use different
         approach so it is going to be removed there).
      sql/sql_handler.cc:
        Adjusted mysql_ha_mark_tables_for_reopen() routine to properly
        handle placeholders which now can be linked into open tables
        list.
      sql/sql_insert.cc:
        Introduced new approach to handling of base tables in CREATE TABLE
        ... SELECT statement.
        
        Now we try to open and lock table to be created at the same time as
        the rest of tables used by this statement. If such table does not
        exist at this moment we create and place in the table cache special
        placeholder for it which prevents its creation or any other usage
        by other threads. By doing this we avoid races which existed with
        previous approach in which we created, opened and locked target in
        separate step without any special protection.
        This also allows properly calculate prelocking set in cases when
        target table already exists and has some on insert triggers.
          
        Note that we don't employ the same approach for temporary tables
        (this is okay as such tables are unaffected by other threads).
        
        Changed create_table_from_items() and select_create methods to
        implement this approach.
      sql/sql_parse.cc:
        The new approach to handling of CREATE TABLE ... SELECT for
        base tables assumes that all tables (including table to be
        created) are opened and (or) locked at the same time.
        So in cases when we create base table we have to pass to
        open_and_lock_tables() table list which includes target table.
      sql/sql_prepare.cc:
        The new approach to handling of CREATE TABLE ... SELECT for
        base tables assumes that all tables (including table to be
        created) are opened and (or) locked at the same time.
        So in cases when we create base table we have to pass to
        open_and_lock_tables() table list which includes target table.
      sql/sql_table.cc:
        Now mysql_create_table_internal(), mysql_create_like_table() and
        mysql_alter_table() not only check that destination table doesn't
        exist on disk but also check that there is no create placeholder
        in table cache for it (i.e. there is no CREATE TABLE ... SELECT
        operation in progress for it). Note that starting from 5.1 we
        use different approach in order to to protect CREATE TABLE ... SELECT
        from concurrent CREATE TABLE (ALTER TABLE ... RENAME) operations,
        the latter simply take name-locks on table before its creation
        (on target table name before renaming).
        
        Also made build_table_path() available from other files and
        asjusted calls to reopen_name_locked_table(), which now takes
        extra argument, which controls linking of open table into
        THD::open_tables list.
      sql/sql_trigger.cc:
        reopen_name_locked_tables() now has one more argument which controls
        linking of opened table into the THD::open_tables list.
      sql/sql_yacc.yy:
        The new approach to handling of CREATE TABLE ... SELECT statement
        for base tables assumes that all tables including table to be
        created are open and (or) locked at the same time. Therefore
        we need to set correct lock for target table.
      sql/table.h:
        Moved declaration of refresh_version variable from mysql_priv.h
        to make it accessible from inline methods of TABLE class. 
        Renamed TABLE::locked_by_flush member to open_placeholder since
        now it is also used for taking exclusive name-lock and not only
        by flush. 
        Introduced TABLE::is_name_opened() helper method which can be used
        to distinguish TABLE instances corresponding to open tables or
        placeholders for them from closed instances (e.g. due to their old
        version). Also introduced TABLE::needs_reopen_or_name_lock() helper
        which allows to check if TABLE instance corresponds to outdated
        version of table or to name-lock placeholder.
        Introduced TABLE_LIST::create member which marks elements of
        table list corresponds to the table to be created.
        Adjusted TABLE_LIST::placeholder() method to take into account 
        name-lock placeholders for tables to be created (this, for example,
        allows to properly handle such placeholders in lock_tables()).
      1f27a7a8
    • unknown's avatar
      Merge vajra.(none):/opt/local/work/mysql-5.0-runtime · eb18176f
      unknown authored
      into  vajra.(none):/opt/local/work/mysql-5.1-runtime
      
      
      mysql-test/r/ps.result:
        Auto merged
      mysql-test/r/ps_1general.result:
        Auto merged
      mysql-test/t/ps.test:
        Auto merged
      mysql-test/t/ps_1general.test:
        Auto merged
      sql/sql_lex.cc:
        Auto merged
      sql/sql_lex.h:
        Auto merged
      sql/sql_yacc.yy:
        Auto merged
      sql/sql_prepare.cc:
        Manual merge.
      eb18176f
    • unknown's avatar
      Cleanup: now that we have Lex_input_stream, finish the transition · d51b898b
      unknown authored
      by moving yet another relevant flag to it from struct LEX.
      
      
      mysql-test/r/ps.result:
        Update result.
      mysql-test/r/ps_1general.result:
        Update result.
      mysql-test/t/ps.test:
        New error code.
      mysql-test/t/ps_1general.test:
        New error code.
      sql/sql_lex.cc:
        Move stmt_prepare_mode to Lex_input_stream.
      sql/sql_lex.h:
        Move stmt_prepare_mode to class Lex_input_stream
      sql/sql_prepare.cc:
        Move stmt_prepare_mode to Lex_input_stream
      sql/sql_yacc.yy:
        Remove dead code.
      d51b898b
  3. 10 May, 2007 8 commits
  4. 08 May, 2007 7 commits
    • unknown's avatar
      Merge adventure.(none):/home/thek/Development/cpp/bug27792/my50-bug27792 · cec87043
      unknown authored
      into  adventure.(none):/home/thek/Development/cpp/mysql-5.0-runtime
      
      
      mysql-test/r/query_cache.result:
        Auto merged
      sql/mysql_priv.h:
        Auto merged
      cec87043
    • unknown's avatar
      Merge adventure.(none):/home/thek/Development/cpp/bug27792/my51-bug27792 · a1e53c8b
      unknown authored
      into  adventure.(none):/home/thek/Development/cpp/mysql-5.1-runtime
      
      
      mysql-test/r/query_cache.result:
        Auto merged
      sql/mysql_priv.h:
        Auto merged
      a1e53c8b
    • unknown's avatar
      Corrected test case for 5.1 requirements · 6d8164a8
      unknown authored
      6d8164a8
    • unknown's avatar
      Merge adventure.(none):/home/thek/Development/cpp/bug27792/my50-bug27792 · 95e09a0f
      unknown authored
      into  adventure.(none):/home/thek/Development/cpp/bug27792/my51-bug27792
      
      
      mysql-test/r/query_cache.result:
        Auto merged
      mysql-test/t/query_cache.test:
        Auto merged
      sql/mysql_priv.h:
        Auto merged
      sql/set_var.cc:
        Auto merged
      sql/sql_cache.cc:
        SCCS merged
      95e09a0f
    • unknown's avatar
      4.1 -> 5.0 Manual merge for Bug #27792 · e1b36af1
      unknown authored
      
      mysql-test/r/query_cache.result:
        Added 5.0 testcase
      mysql-test/t/query_cache.test:
        Added 5.0 test case
      sql/mysql_priv.h:
        Added support for div_precision_increment
      sql/set_var.cc:
        - Added query cache flush when system variable ft_boolean_syntax is
          updated since this also invalidates all cached result sets using this
          variable.
      sql/sql_cache.cc:
        - Added the local system variable div_precision_increment as an identification flag
          for cached queries.
      e1b36af1
    • unknown's avatar
      Merge adventure.(none):/home/thek/Development/cpp/bug27792/my41-bug27792 · 50a54985
      unknown authored
      into  adventure.(none):/home/thek/Development/cpp/bug27792/my50-bug27792
      
      
      sql/mysql_priv.h:
        Auto merged
      mysql-test/r/query_cache.result:
        Null merge
      mysql-test/t/query_cache.test:
        Null merge
      sql/set_var.cc:
        Null merge
      sql/sql_cache.cc:
        Null merge
      50a54985
    • unknown's avatar
      Bug #27792 query cache returns wrong result, with certain system variables · 1a05e393
      unknown authored
       - Queries in the query cache are identified by the individual 
         characters in the query statement, the current database and 
         the current environment expressed as a set of system variable
         flags.
       - Since the set of environment flags didn't properly describe the
         current environment unexpected results were returned from the 
         query cache.
       - Query cache is now cleared when the variable ft_boolean_syntax is 
         updated.
       - An identification flag for the variable default_week_format is 
         added to the query cache record.
       
      Thanks to Martin Friebe who has supplied significant parts of this patch.
      
      
      mysql-test/r/query_cache.result:
        Added test case
      mysql-test/t/query_cache.test:
        Added test case
      sql/mysql_priv.h:
        - Added missing flags to reflect the significant local environment
          settings of the cached query.
      sql/set_var.cc:
        - Added query cache flush when system variable ft_boolean_syntax is
          updated since this also invalidates all cached result sets using this
          variable.
      sql/sql_cache.cc:
        - Added another local system variable as an identification flag
          for cached queries.
      1a05e393
  5. 07 May, 2007 4 commits
    • unknown's avatar
      Merge adventure.(none):/home/thek/Development/cpp/bug26977/my50-bug26977 · 4a5d108c
      unknown authored
      into  adventure.(none):/home/thek/Development/cpp/mysql-5.0-runtime
      
      4a5d108c
    • unknown's avatar
      Merge adventure.(none):/home/thek/Development/cpp/bug26977/my51-bug26977 · 2a425760
      unknown authored
      into  adventure.(none):/home/thek/Development/cpp/mysql-5.1-runtime
      
      2a425760
    • unknown's avatar
      Merge adventure.(none):/home/thek/Development/cpp/bug26977/my50-bug26977 · 75ff7756
      unknown authored
      into  adventure.(none):/home/thek/Development/cpp/bug26977/my51-bug26977
      
      
      mysql-test/r/sp-code.result:
        Auto merged
      mysql-test/t/sp-code.test:
        Auto merged
      sql/sp_head.cc:
        Auto merged
      sql/sp_head.h:
        Auto merged
      75ff7756
    • unknown's avatar
      Bug#26977 exception handlers never hreturn · c0107688
      unknown authored
        - In some cases, flow control optimization implemented in sp::optimize
          removes hreturn instructions, causing SQL exception handlers to:
            * never return
            * execute wrong logic
        - This patch overrides default short cut optimization on hreturn instructions
          to avoid this problem.
      
      
      mysql-test/r/sp-code.result:
        Added test case
      mysql-test/t/sp-code.test:
        Added test case
      sql/sp_head.cc:
        Override opt_mark to get correct execution paths without jump short cut 
        optimization.
      sql/sp_head.h:
        Added override sp_instr_hreturn::opt_shortcut_jump so that jump short cuts aren't
        performed on hreturn instructions operating on handlers which are set to CONTINUE
        after interruption.
      c0107688
  6. 02 May, 2007 9 commits
  7. 01 May, 2007 2 commits
    • unknown's avatar
      Merge quadxeon.mysql.com:/benchmarks/ext3/TOSAVE/tsmith/bk/maint/50 · 937f7256
      unknown authored
      into  quadxeon.mysql.com:/benchmarks/ext3/TOSAVE/tsmith/bk/maint/51
      
      
      mysql-test/r/alter_table.result:
        Auto merged
      mysql-test/t/alter_table.test:
        Auto merged
      sql/item_func.h:
        Auto merged
      937f7256
    • unknown's avatar
      mysql-test-run.pl: · 66823215
      unknown authored
        Run master init scripts also for --embedded-server
      
      
      mysql-test/mysql-test-run.pl:
        Run master init scripts also for --embedded-server
      66823215