1. 20 Dec, 2010 1 commit
  2. 17 Dec, 2010 6 commits
  3. 16 Dec, 2010 2 commits
  4. 15 Dec, 2010 1 commit
  5. 14 Dec, 2010 10 commits
    • Gleb Shchepa's avatar
    • Gleb Shchepa's avatar
      backport of bug #54476 fix from 5.1-bugteam to 5.0-bugteam. · d92a7eb1
      Gleb Shchepa authored
      Original revid: alexey.kopytov@sun.com-20100723115254-jjwmhq97b9wl932l
      
       > Bug #54476: crash when group_concat and 'with rollup' in
       >                      prepared statements
       >
       > Using GROUP_CONCAT() together with the WITH ROLLUP modifier
       > could crash the server.
       >
       > The reason was a combination of several facts:
       >
       > 1. The Item_func_group_concat class stores pointers to ORDER
       > objects representing the columns in the ORDER BY clause of
       > GROUP_CONCAT().
       >
       > 2. find_order_in_list() called from
       > Item_func_group_concat::setup() modifies the ORDER objects so
       > that their 'item' member points to the arguments list
       > allocated in the Item_func_group_concat constructor.
       >
       > 3. In some cases (e.g. in JOIN::rollup_make_fields) a copy of
       > the original Item_func_group_concat object could be created by
       > using the Item_func_group_concat::Item_func_group_concat(THD
       > *thd, Item_func_group_concat *item) copy constructor. The
       > latter essentially creates a shallow copy of the source
       > object. Memory for the arguments array is allocated on
       > thd->mem_root, but the pointers for arguments and ORDER are
       > copied verbatim.
       >
       > What happens in the test case is that when executing the query
       > for the first time, after a copy of the original
       > Item_func_group_concat object has been created by
       > JOIN::rollup_make_fields(), find_order_in_list() is called for
       > this new object. It then resolves ORDER BY by modifying the
       > ORDER objects so that they point to elements of the arguments
       > array which is local to the cloned object. When thd->mem_root
       > is freed upon completing the execution, pointers in the ORDER
       > objects become invalid. Those ORDER objects, however, are also
       > shared with the original Item_func_group_concat object which is
       > preserved between executions of a prepared statement. So the
       > first call to find_order_in_list() for the original object on
       > the second execution tries to dereference an invalid pointer.
       >
       > The solution is to create copies of the ORDER objects when
       > copying Item_func_group_concat to not leave any stale pointers
       > in other instances with different lifecycles.
      
      
      mysql-test/r/func_gconcat.result:
        Test case for bug #54476.
      mysql-test/t/func_gconcat.test:
        Test case for bug #54476.
      sql/item_sum.cc:
        Copy the ORDER objects pointed to by the elements of the
        'order' array in the copy constructor of
        Item_func_group_concat.
      sql/table.h:
        Removed the unused 'item_copy' member of the ORDER class.
      d92a7eb1
    • Luis Soares's avatar
      BUG#46697 · 87daa6fe
      Luis Soares authored
      Autmoerging into latest mysql-5.1-bugteam.
      87daa6fe
    • Luis Soares's avatar
      BUG 46697 · 238ebf03
      Luis Soares authored
      Addressing review comments.
      238ebf03
    • Luis Soares's avatar
      fabbd244
    • Sergey Glukhov's avatar
      Bug#57818 string conversion function died · 122d9ab0
      Sergey Glukhov authored
      Bug#57913 large negative number to string conversion functions crash
      String object which is used as result container of the item
      has uninitialized 'str_charset' field. This object
      might be used later to preform some internal operations
      and str_charset field is involved in these operations.
      It leads to crash.
      The fix is to intialize str_charset in my_decimal2string() func.
      
      
      mysql-test/r/func_str.result:
        test case
      mysql-test/t/func_str.test:
        test case
      sql/my_decimal.cc:
        intialize str_charset field for result string
        in my_decimal2string() func.
      122d9ab0
    • Mattias Jonsson's avatar
      merge · 03ff2ca9
      Mattias Jonsson authored
      03ff2ca9
    • Mattias Jonsson's avatar
      merge · b395d434
      Mattias Jonsson authored
      b395d434
    • Mattias Jonsson's avatar
      Bug#45717: A few test cases are disabled due to closed Bug#30577 · 6eaf47e2
      Mattias Jonsson authored
      Backport from 5.5. OK from Anitha G. to push to 5.1.
      
      Removed floor(float_col) tests, enabled floor(decimal_col) tests
      6eaf47e2
    • Sergey Glukhov's avatar
      Fixed following problems: · dda99909
      Sergey Glukhov authored
      --Bug#52157 various crashes and assertions with multi-table update, stored function
      --Bug#54475 improper error handling causes cascading crashing failures in innodb/ndb
      --Bug#57703 create view cause Assertion failed: 0, file .\item_subselect.cc, line 846
      --Bug#57352 valgrind warnings when creating view
      --Recently discovered problem when a nested materialized derived table is used
        before being populated and it leads to incorrect result
      
      We have several modes when we should disable subquery evaluation.
      The reasons for disabling are different. It could be
      uselessness of the evaluation as in case of 'CREATE VIEW'
      or 'PREPARE stmt', or we should disable subquery evaluation
      if tables are not locked yet as it happens in bug#54475, or
      too early evaluation of subqueries can lead to wrong result
      as it happened in Bug#19077.
      Main problem is that if subquery items are treated as const
      they are evaluated in ::fix_fields(), ::fix_length_and_dec()
      of the parental items as a lot of these methods have
      Item::val_...() calls inside.
      We have to make subqueries non-const to prevent unnecessary
      subquery evaluation. At the moment we have different methods
      for this. Here is a list of these modes:
      
      1. PREPARE stmt;
      We use UNCACHEABLE_PREPARE flag.
      It is set during parsing in sql_parse.cc, mysql_new_select() for
      each SELECT_LEX object and cleared at the end of PREPARE in
      sql_prepare.cc, init_stmt_after_parse(). If this flag is set
      subquery becomes non-const and evaluation does not happen.
      
      2. CREATE|ALTER VIEW, SHOW CREATE VIEW, I_S tables which
         process FRM files
      We use LEX::view_prepare_mode field. We set it before
      view preparation and check this flag in
      ::fix_fields(), ::fix_length_and_dec().
      Some bugs are fixed using this approach,
      some are not(Bug#57352, Bug#57703). The problem here is
      that we have a lot of ::fix_fields(), ::fix_length_and_dec()
      where we use Item::val_...() calls for const items.
      
      3. Derived tables with subquery = wrong result(Bug19077)
      The reason of this bug is too early subquery evaluation.
      It was fixed by adding Item::with_subselect field
      The check of this field in appropriate places prevents
      const item evaluation if the item have subquery.
      The fix for Bug19077 fixes only the problem with
      convert_constant_item() function and does not cover
      other places(::fix_fields(), ::fix_length_and_dec() again)
      where subqueries could be evaluated.
      
      Example:
      CREATE TABLE t1 (i INT, j BIGINT);
      INSERT INTO t1 VALUES (1, 2), (2, 2), (3, 2);
      SELECT * FROM (SELECT MIN(i) FROM t1
      WHERE j = SUBSTRING('12', (SELECT * FROM (SELECT MIN(j) FROM t1) t2))) t3;
      DROP TABLE t1;
      
      4. Derived tables with subquery where subquery
         is evaluated before table locking(Bug#54475, Bug#52157)
      
      Suggested solution is following:
      
      -Introduce new field LEX::context_analysis_only with the following
       possible flags:
       #define CONTEXT_ANALYSIS_ONLY_PREPARE 1
       #define CONTEXT_ANALYSIS_ONLY_VIEW    2
       #define CONTEXT_ANALYSIS_ONLY_DERIVED 4
      -Set/clean these flags when we perform
       context analysis operation
      -Item_subselect::const_item() returns
       result depending on LEX::context_analysis_only.
       If context_analysis_only is set then we return
       FALSE that means that subquery is non-const.
       As all subquery types are wrapped by Item_subselect
       it allow as to make subquery non-const when
       it's necessary.
      
      
      mysql-test/r/derived.result:
        test case
      mysql-test/r/multi_update.result:
        test case
      mysql-test/r/view.result:
        test case
      mysql-test/suite/innodb/r/innodb_multi_update.result:
        test case
      mysql-test/suite/innodb/t/innodb_multi_update.test:
        test case
      mysql-test/suite/innodb_plugin/r/innodb_multi_update.result:
        test case
      mysql-test/suite/innodb_plugin/t/innodb_multi_update.test:
        test case
      mysql-test/t/derived.test:
        test case
      mysql-test/t/multi_update.test:
        test case
      mysql-test/t/view.test:
        test case
      sql/item.cc:
        --removed unnecessary code
      sql/item_cmpfunc.cc:
        --removed unnecessary checks
        --THD::is_context_analysis_only() is replaced with LEX::is_ps_or_view_context_analysis()
      sql/item_func.cc:
        --refactored context analysis checks
      sql/item_row.cc:
        --removed unnecessary checks
      sql/item_subselect.cc:
        --removed unnecessary code
        --added DBUG_ASSERT into Item_subselect::exec()
          which asserts that subquery execution can not happen
          if LEX::context_analysis_only is set, i.e. at context
          analysis stage.
        --Item_subselect::const_item()
          Return FALSE if LEX::context_analysis_only is set.
          It prevents subquery evaluation in ::fix_fields &
          ::fix_length_and_dec at context analysis stage.
      sql/item_subselect.h:
        --removed unnecessary code
      sql/mysql_priv.h:
        --Added new set of flags.
      sql/sql_class.h:
        --removed unnecessary code
      sql/sql_derived.cc:
        --added LEX::context_analysis_only analysis intialization/cleanup
      sql/sql_lex.cc:
        --init LEX::context_analysis_only field
      sql/sql_lex.h:
        --New LEX::context_analysis_only field
      sql/sql_parse.cc:
        --removed unnecessary code
      sql/sql_prepare.cc:
        --removed unnecessary code
        --added LEX::context_analysis_only analysis intialization/cleanup
      sql/sql_select.cc:
        --refactored context analysis checks
      sql/sql_show.cc:
        --added LEX::context_analysis_only analysis intialization/cleanup
      sql/sql_view.cc:
        --added LEX::context_analysis_only analysis intialization/cleanup
      dda99909
  6. 13 Dec, 2010 3 commits
    • Tor Didriksen's avatar
      Bug #58426 Crashing tests not failing as they are supposed to on Solaris 10 debug · 1bc16930
      Tor Didriksen authored
        
      On this platform we seem to get lots of other signals
      while waiting for SIGKILL to be delivered.
      
      Solution: use sigsuspend(<all signals blocked>)
      
      
      
      dbug/dbug.c:
        New function _db_suicide_() which does kill(myself, -9) and then waits forever.
      include/my_dbug.h:
        Let DBUG_SUICE wait forever until the KILL signal is delivered, and process dies.
      1bc16930
    • Sergey Glukhov's avatar
      Bug#39828 : Autoinc wraps around when offset and increment > 1 · 74461f5c
      Sergey Glukhov authored
      Auto increment value wraps when performing a bulk insert with
      auto_increment_increment and auto_increment_offset greater than
      one.
      The fix:
      If overflow happened then return MAX_ULONGLONG value as an
      indication of overflow and check this before storing the
      value into the field in update_auto_increment().
      
      
      
      mysql-test/r/auto_increment.result:
        test case
      mysql-test/suite/innodb/r/innodb-autoinc.result:
        test case fix
      mysql-test/suite/innodb/t/innodb-autoinc.test:
        test case fix
      mysql-test/suite/innodb_plugin/r/innodb-autoinc.result:
        test case fix
      mysql-test/suite/innodb_plugin/t/innodb-autoinc.test:
        test case fix
      mysql-test/t/auto_increment.test:
        test case
      sql/handler.cc:
        If overflow happened then return MAX_ULONGLONG value as an
        indication of overflow and check this before storing the
        value into the field in update_auto_increment().
      74461f5c
    • Sergey Glukhov's avatar
      Bug#58396 group_concat and explain extended are still crashy · c632a76e
      Sergey Glukhov authored
      Explain fails at fix_fields stage and some items are left unfixed,
      particulary Item_group_concat. Item_group_concat::orig_args field
      is uninitialized in this case and Item_group_concat::print call 
      leads to crash.
      The fix:
      move the initialization of Item_group_concat::orig_args
      into constructor.
      
      
      mysql-test/r/func_gconcat.result:
        test case
      mysql-test/t/func_gconcat.test:
        test case
      sql/item_sum.cc:
        move the initialization of Item_group_concat::orig_args
        into constructor.
      c632a76e
  7. 09 Dec, 2010 5 commits
    • Mattias Jonsson's avatar
      Bug#58831: large_tests.alter_table crashes the server · c5d33d93
      Mattias Jonsson authored
      The tests generates 4 Billion rows which timeouts.
      
      Removed the test from the default weekly run.
      c5d33d93
    • Bjorn Munch's avatar
      Bug #58511 mysqltest doesn't always run statements in ps mode · f6073f34
      Bjorn Munch authored
      mysqltest checks if the stmt is one that should be run in ps mode,
        but regexp doesn't match if preceeded by /* */ comment.
      Fix: match function will jump over /*..*/ if found at start
      f6073f34
    • Bjorn Munch's avatar
      Bug #58522 mtr --debug leaks memory when test fails · 1c3f9c01
      Bjorn Munch authored
      Backported use of setenv() from 5.5
      This will remove the leak on systems that have setenv()
      I have not fixed the string.c leak, it's a local variable
         that the cleanup function cannot access.
      1c3f9c01
    • Bjorn Munch's avatar
      Bug #58608 mysqltestrun --help incongruences · 0be6150c
      Bjorn Munch authored
      Fixed some errors
      Added note about 'no' prefix to options
      See also follow-up comment to bug report
      0be6150c
    • Ramil Kalimullin's avatar
      Fix for bug#48451: my_seek and my_tell ignore MY_WME flag · 3d67785e
      Ramil Kalimullin authored
       my_seek() and my_tell() functions now honour MY_WME flag.
      
      
      include/mysys_err.h:
        Fix for bug#48451: my_seek and my_tell ignore MY_WME flag
          - EE_CANT_SEEK added, used in my_seek() and my_tell() functions.
      mysys/errors.c:
        Fix for bug#48451: my_seek and my_tell ignore MY_WME flag
          - EE_CANT_SEEK added, used in my_seek() and my_tell() functions.
      mysys/my_seek.c:
        Fix for bug#48451: my_seek and my_tell ignore MY_WME flag
          - my_seek() and my_tell() handle MY_WME flag.
      mysys/my_symlink.c:
        Fix for bug#48451: my_seek and my_tell ignore MY_WME flag
          - __attribute__((unused)) removed, as myf MyFlags is
        actually used in the my_realpath() function.
      storage/myisam/ha_myisam.cc:
        Fix for bug#48451: my_seek and my_tell ignore MY_WME flag
          - check my_seek() result.
      3d67785e
  8. 07 Dec, 2010 3 commits
    • Luis Soares's avatar
      BUG#46166 · 376b2fa5
      Luis Soares authored
      Post merge fix. In write_incident, check if binlog file is
      opened before actually trying to write the incident event.
      376b2fa5
    • Luis Soares's avatar
      BUG#46166 · 529024d1
      Luis Soares authored
      Automerged bzr bundle from bug report.
      529024d1
    • Davi Arnaut's avatar
      Bug#57991: Compiler flag change build error : adler32.c · 1948e7af
      Davi Arnaut authored
      Do not use the same maintainer mode flags for both GCC and ICC.
      The -Wall option for ICC enables more warnings than its GCC
      counterpart.
      1948e7af
  9. 10 Dec, 2010 1 commit
    • Dmitry Shulga's avatar
      Fixed bug#54486 - assert in my_seek, concurrent · d3ea2409
      Dmitry Shulga authored
      DROP/CREATE SCHEMA, CREATE TABLE, REPAIR.
      
      The cause of assert was concurrent execution of
      DROP DATABASE and REPAIR TABLE where first statement
      deleted table's file .TMD at the same time as
      REPAIR TABLE tried to read file details from the old file
      that was just removed.
      
      Additionally was fixed trouble when DROP TABLE try delete
      all files belong to table being dropped at the same time
      when REPAIR TABLE statement has just deleted .TMD file.
      
      No regression test added because this would require adding a
      sync point to mysys/my_redel.c. Since this bug is not present in
      5.5+, adding test coverage was considered unnecessary.
      The patch has been verified using RQG testing.
      
      
      sql/sql_db.cc:
        mysql_rm_known_files() modified: ignore possible ENOENT error
        when trying delete all table's files. Such aggressive 
        algorithm permits skip already deleted (in another thread)
        files.
        
        Installation of Drop_table_error_handler as internal error handler
        moved from mysql_rm_db() to mysql_rm_knowns_files() near to place
        where source of possible errors (call to mysql_rm_table_part2) located.
      storage/myisam/mi_check.c:
        mi_repair() was modified: set param->retry_repair= 0
        in order to don't call following failover procedure
        in ha_myisam::repair().
      d3ea2409
  10. 09 Dec, 2010 1 commit
  11. 07 Dec, 2010 1 commit
    • Luis Soares's avatar
      BUG#58416 · 1151e0fc
      Luis Soares authored
      Automerging bzr bundle from bug report into latest 
      mysql-5.1-bugteam.
      1151e0fc
  12. 03 Dec, 2010 1 commit
    • Luis Soares's avatar
      BUG#46697: Table name in error message is not populated · b697bdf7
      Luis Soares authored
      When a query fails with a different error on the slave,
      the sql thread outputs a message (M) containing:
      
        1. the error message format for the master error code
        2. the master error code
        3. the error message for the slave's error code
        4. the slave error code
      
      Given that the slave has no information on the error message
      itself that the master outputs, it can only print its own
      version of the message format (but stripped from the 
      additional data if the message format requires). This may
      confuse users.
      
      To fix this we augment the slave's message (M) to explicitly
      state that the master's message is actually an error message 
      format, the one associated with the given master error code 
      and that the slave server knows about.
      b697bdf7
  13. 02 Dec, 2010 3 commits
  14. 01 Dec, 2010 2 commits
    • Mats Kindahl's avatar
      214abbc9
    • Mats Kindahl's avatar
      BUG#58246: INSTALL PLUGIN not secure & crashable · 43c3e4ab
      Mats Kindahl authored
      When installing plugins, there is a missing check
      for slash (/) in the path on Windows. Note that on
      Windows, both / and \ can be used to separate
      directories.
      
      This patch fixes the issue by:
      - Adding a FN_DIRSEP symbol for all platforms
        consisting of a string of legal directory
        separators.
      - Adding a charset-aware version of strcspn().
      - Adding a check_valid_path() function that uses
        my_strcspn() to check if any FN_DIRSEP character
        is in the supplied string.
      - Using the check_valid_path() function in
        sql_plugin.cc and sql_udf.cc (which means
        replacing the existing test there).
      
      include/config-netware.h:
        Adding FN_DIRSEP
        ******
        Adding FN_DIRSEP
      include/config-win.h:
        Adding FN_DIRSEP
        ******
        Adding FN_DIRSEP
      include/m_ctype.h:
        Adding my_strspn() and my_strcspn().
        
        ******
        Adding my_strspn() and my_strcspn().
      include/my_global.h:
        Adding FN_DIRSEP
        ******
        Adding FN_DIRSEP
      mysql-test/t/plugin_not_embedded.test:
        Adding test that file names containing / is
        disallowed on *all* platforms.
        ******
        Adding test that file names containing / is
        disallowed on *all* platforms.
      sql/sql_plugin.cc:
        Introducing check_if_path() function for
        checking if filename is a path to include
        / on Windows.
        ******
        Introducing check_if_path() function for
        checking if filename is a path to include
        / on Windows.
      sql/sql_udf.cc:
        Switching to use check_if_path() function.
        ******
        Switching to use check_if_path() function.
      strings/my_strchr.c:
        Adding my_strspn() and my_strcspn().
        ******
        Adding my_strspn() and my_strcspn().
      43c3e4ab