1. 11 Aug, 2008 6 commits
  2. 07 Aug, 2008 1 commit
    • Chad MILLER's avatar
      Bug#31605: mysql_upgrade relies on Linux /proc filesystem when not \ · abeda651
      Chad MILLER authored
      	running on Windows
      
      We used two OS-specific methods of looking up the executable 
      name, which don't work outside of those two kinds of OSes 
      (Linux+Solaris and Windows).
      
      We assume that if the user ran this program with a certain 
      name, we can run the other sibling programs with a similar name.
      
      (re-patch in bzr)
      abeda651
  3. 06 Aug, 2008 2 commits
  4. 04 Aug, 2008 1 commit
  5. 31 Jul, 2008 1 commit
  6. 30 Jul, 2008 1 commit
    • Georgi Kodinov's avatar
      Bug#37662 nested if() inside sum() is parsed in exponential time · ae4a35fd
      Georgi Kodinov authored
            
      min() and max() functions are implemented in MySQL as macros.
      This means that max(a,b) is expanded to: ((a) > (b) ? (a) : (b))
      Note how 'a' is quoted two times.
      Now imagine 'a' is a recursive function call that's several 10s of levels deep.
      And the recursive function does max() with a function arg as well to dive into
      recursion.
      This means that simple function call can take most of the clock time.
      Identified and fixed several such calls to max()/min() : including the IF() 
      sql function implementation.
      
      mysql-test/r/func_if.result:
        Bug#37662 test case
      mysql-test/t/func_if.test:
        Bug#37662 test case
      sql/item.cc:
        Bug#37662 don't call expensive functions as arguments to min/max
      sql/item_cmpfunc.cc:
        Bug#37662 don't call expensive functions as arguments to min/max
      sql/item_func.cc:
        Bug#37662 don't call expensive functions as arguments to min/max
      ae4a35fd
  7. 29 Jul, 2008 3 commits
  8. 28 Jul, 2008 1 commit
  9. 26 Jul, 2008 1 commit
    • Igor Babaev's avatar
      Fixed bug #38191. · b6e3a9e2
      Igor Babaev authored
      Calling List<Cached_item>::delete_elements for the same list twice
      caused a crash of the server in the function JOIN::cleaunup.
      Ensured that delete_elements() in JOIN::cleanup would be called only once.
      
      
      mysql-test/r/subselect.result:
        Added a test case for bug #38191.
      mysql-test/t/subselect.test:
        Added a test case for bug #38191.
      sql/sql_select.cc:
        Fixed bug #38191.
        Ensured that delete_elements() in JOIN::cleanup would be called only once.
      b6e3a9e2
  10. 24 Jul, 2008 1 commit
  11. 23 Jul, 2008 1 commit
    • Georgi Kodinov's avatar
      Bug#37830 : ORDER BY ASC/DESC - no difference · dd85aa78
      Georgi Kodinov authored
                        
      Range scan in descending order for c <= <col> <= c type of
      ranges was ignoring the DESC flag.
      However some engines like InnoDB have the primary key parts 
      as a suffix for every secondary key.
      When such primary key suffix is used for ordering ignoring 
      the DESC is not valid.
      But we generally would like to do this because it's faster.
                  
      Fixed by performing only reverse scan if the primary key is used.
      Removed some dead code in the process.
      
      mysql-test/r/innodb_mysql.result:
        Bug#37830 : test case
      mysql-test/t/innodb_mysql.test:
        Bug#37830 : test case
      sql/opt_range.cc:
        Bug#37830 : 
        - preserve and use used_key_parts to
          distinguish when a primary key suffix is used
        - removed some dead code
      sql/opt_range.h:
        Bug#37830 : 
        - preserve used_key_parts
        - dead code removed
      sql/sql_select.cc:
        Bug#37830 : Do only reverse order traversal
        if the primary key suffix is used.
      dd85aa78
  12. 22 Jul, 2008 1 commit
  13. 21 Jul, 2008 1 commit
  14. 24 Jul, 2008 1 commit
  15. 21 Jul, 2008 1 commit
  16. 19 Jul, 2008 2 commits
  17. 18 Jul, 2008 2 commits
  18. 17 Jul, 2008 2 commits
  19. 16 Jul, 2008 5 commits
  20. 15 Jul, 2008 3 commits
    • Sergey Petrunia's avatar
      Merge · 7315a700
      Sergey Petrunia authored
      7315a700
    • Kristofer Pettersson's avatar
      auto merge · f81c2f07
      Kristofer Pettersson authored
      f81c2f07
    • Sergey Petrunia's avatar
      BUG#35478: sort_union() returns bad data when sort_buffer_size is hit · 62513bb1
      Sergey Petrunia authored
      - In QUICK_INDEX_MERGE_SELECT::read_keys_and_merge: when we got table->sort from Unique,
        tell init_read_record() not to use rr_from_cache() because a) rowids are already sorted
        and b) it might be that the the data is used by filesort(), which will need record rowids
        (which rr_from_cache() cannot provide).
      - Fully de-initialize the table->sort read in QUICK_INDEX_MERGE_SELECT::get_next(). This fixes BUG#35477.
      (bk trigger: file as fix for BUG#35478).
      
      sql/filesort.cc:
        BUG#35478: sort_union() returns bad data when sort_buffer_size is hit
        - make find_all_keys() use quick->get_next() instead of init_read_record(r)/r.read_record() calls
        - added dbug printout
      sql/mysql_priv.h:
        BUG#35478: sort_union() returns bad data when sort_buffer_size is hit
        - Added parameter to init_read_record
      sql/opt_range.cc:
        BUG#35478: sort_union() returns bad data when sort_buffer_size is hit
        - In QUICK_INDEX_MERGE_SELECT::read_keys_and_merge: when we got table->sort from Unique,
          tell init_read_record() not to use rr_from_cache() because a) rowids are already sorted
          and b) it might be that the the data is used by filesort(), which will need record rowids
          (which rr_from_cache() cannot provide).
        - Fully de-initialize the table->sort read in QUICK_INDEX_MERGE_SELECT::get_next().
      sql/records.cc:
        BUG#35478: sort_union() returns bad data when sort_buffer_size is hit
        - Added disable_rr_cache parameter to init_read_record
        - Added comment
      sql/sql_acl.cc:
        BUG#35478: sort_union() returns bad data when sort_buffer_size is hit
        - Added parameter to init_read_record
      sql/sql_delete.cc:
        BUG#35478: sort_union() returns bad data when sort_buffer_size is hit
        - Added parameter to init_read_record
      sql/sql_help.cc:
        BUG#35478: sort_union() returns bad data when sort_buffer_size is hit
        - Added parameter to init_read_record
      sql/sql_select.cc:
        BUG#35478: sort_union() returns bad data when sort_buffer_size is hit
        - Added parameter to init_read_record
      sql/sql_table.cc:
        BUG#35478: sort_union() returns bad data when sort_buffer_size is hit
        - Added parameter to init_read_record
      sql/sql_udf.cc:
        BUG#35478: sort_union() returns bad data when sort_buffer_size is hit
        - Added parameter to init_read_record
      sql/sql_update.cc:
        BUG#35478: sort_union() returns bad data when sort_buffer_size is hit
        - Added parameter to init_read_record
      62513bb1
  21. 14 Jul, 2008 3 commits
    • Marc Alff's avatar
      Merge · 5f9f35e2
      Marc Alff authored
      5f9f35e2
    • Marc Alff's avatar
      Bug#35577 (CREATE PROCEDURE causes either crash or syntax error depending on · e73e7bb9
      Marc Alff authored
      build)
      
      The crash was caused by freeing the internal parser stack during the parser
      execution.
      This occured only for complex stored procedures, after reallocating the parser
      stack using my_yyoverflow(), with the following C call stack:
      - MYSQLparse()
      - any rule calling sp_head::restore_lex()
      - lex_end()
      - x_free(lex->yacc_yyss), xfree(lex->yacc_yyvs)
      
      The root cause is the implementation of stored procedures, which breaks the
      assumption from 4.1 that there is only one LEX structure per parser call.
      
      The solution is to separate the LEX structure into:
      - attributes that represent a statement (the current LEX structure),
      - attributes that relate to the syntax parser itself (Yacc_state),
      so that parsing multiple statements in stored programs can create multiple
      LEX structures while not changing the unique Yacc_state.
      
      Now, Yacc_state and the existing Lex_input_stream are aggregated into
      Parser_state, a structure that represent the complete state of the (Lexical +
      Syntax) parser.
      
      
      mysql-test/r/parser_stack.result:
        Bug#35577 (CREATE PROCEDURE causes either crash or syntax error depending on
        build)
      mysql-test/t/parser_stack.test:
        Bug#35577 (CREATE PROCEDURE causes either crash or syntax error depending on
        build)
      sql/sp.cc:
        Bug#35577 (CREATE PROCEDURE causes either crash or syntax error depending on
        build)
      sql/sp_head.cc:
        Bug#35577 (CREATE PROCEDURE causes either crash or syntax error depending on
        build)
      sql/sql_class.cc:
        Bug#35577 (CREATE PROCEDURE causes either crash or syntax error depending on
        build)
      sql/sql_class.h:
        Bug#35577 (CREATE PROCEDURE causes either crash or syntax error depending on
        build)
      sql/sql_lex.cc:
        Bug#35577 (CREATE PROCEDURE causes either crash or syntax error depending on
        build)
      sql/sql_lex.h:
        Bug#35577 (CREATE PROCEDURE causes either crash or syntax error depending on
        build)
      sql/sql_parse.cc:
        Bug#35577 (CREATE PROCEDURE causes either crash or syntax error depending on
        build)
      sql/sql_prepare.cc:
        Bug#35577 (CREATE PROCEDURE causes either crash or syntax error depending on
        build)
      sql/sql_trigger.cc:
        Bug#35577 (CREATE PROCEDURE causes either crash or syntax error depending on
        build)
      sql/sql_view.cc:
        Bug#35577 (CREATE PROCEDURE causes either crash or syntax error depending on
        build)
      sql/sql_yacc.yy:
        Bug#35577 (CREATE PROCEDURE causes either crash or syntax error depending on
        build)
      e73e7bb9
    • Joerg Bruehe's avatar
      Merge main 5.0 into 5.0-build · d156cc64
      Joerg Bruehe authored
      d156cc64