corrupts a MERGE table

Post-pushbuild fix. The merge test failed on Windows.
The MoveFile() function returned the error code
ERROR_ACCESS_DENIED.

The fix is to use a different name for the file to be
deleted. This is the same trick as we use for the error
code ERROR_ALREADY_EXISTS.

Added ERROR_ACCESS_DENIED to the list of error codes that
require to change the name of the file to be deleted.


mysys/my_delete.c:
  Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
              corrupts a MERGE table
  Added ERROR_ACCESS_DENIED to the list of error codes that
  require to change the name of the file to be deleted.

into  stella.local:/home2/mydev/mysql-5.1-bug26379-8

            corrupts a MERGE table

Post-pushbuild fix for a Valgrind warning.


mysql-test/r/merge.result:
  Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
              corrupts a MERGE table
  Fixed test result.
mysql-test/t/merge.test:
  Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
              corrupts a MERGE table
  Removed unnecessary statements from test.
sql/sql_trigger.cc:
  Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
              corrupts a MERGE table
  Fixed usage of db and table_name for
  close_data_files_and_morph_locks().

  
Problem: there's no guarantee that the user variable item's result_field
is assigned when we're adjusting its table read map.
  
Fix: check the result_field before using it.


mysql-test/r/user_var.result:
  Fix for bug #32260: User variables in query cause server crash
    - test result.
mysql-test/t/user_var.test:
  Fix for bug #32260: User variables in query cause server crash
    - test case.
sql/item_func.cc:
  Fix for bug #32260: User variables in query cause server crash
    - using the result_field ensure it is set.

            corrupts a MERGE table
Bug 26867 - LOCK TABLES + REPAIR + merge table result in
            memory/cpu hogging
Bug 26377 - Deadlock with MERGE and FLUSH TABLE
Bug 25038 - Waiting TRUNCATE
Bug 25700 - merge base tables get corrupted by
            optimize/analyze/repair table
Bug 30275 - Merge tables: flush tables or unlock tables
            causes server to crash
Bug 19627 - temporary merge table locking
Bug 27660 - Falcon: merge table possible
Bug 30273 - merge tables: Can't lock file (errno: 155)

The problems were:

Bug 26379 - Combination of FLUSH TABLE and REPAIR TABLE
                corrupts a MERGE table

  1. A thread trying to lock a MERGE table performs busy waiting while
     REPAIR TABLE or a similar table administration task is ongoing on
     one or more of its MyISAM tables.
  
  2. A thread trying to lock a MERGE table performs busy waiting until all
     threads that did REPAIR TABLE or similar table administration tasks
     on one or more of its MyISAM tables in LOCK TABLES segments do UNLOCK
     TABLES. The difference against problem #1 is that the busy waiting
     takes place *after* the administration task. It is terminated by
     UNLOCK TABLES only.
  
  3. Two FLUSH TABLES within a LOCK TABLES segment can invalidate the
     lock. This does *not* require a MERGE table. The first FLUSH TABLES
     can be replaced by any statement that requires other threads to
     reopen the table. In 5.0 and 5.1 a single FLUSH TABLES can provoke
     the problem.

Bug 26867 - LOCK TABLES + REPAIR + merge table result in
            memory/cpu hogging

  Trying DML on a MERGE table, which has a child locked and
  repaired by another thread, made an infinite loop in the server.

Bug 26377 - Deadlock with MERGE and FLUSH TABLE

  Locking a MERGE table and its children in parent-child order
  and flushing the child deadlocked the server.

Bug 25038 - Waiting TRUNCATE

  Truncating a MERGE child, while the MERGE table was in use,
  let the truncate fail instead of waiting for the table to
  become free.

Bug 25700 - merge base tables get corrupted by
            optimize/analyze/repair table

  Repairing a child of an open MERGE table corrupted the child.
  It was necessary to FLUSH the child first.

Bug 30275 - Merge tables: flush tables or unlock tables
            causes server to crash

  Flushing and optimizing locked MERGE children crashed the server.

Bug 19627 - temporary merge table locking

  Use of a temporary MERGE table with non-temporary children
  could corrupt the children.

  Temporary tables are never locked. So we do now prohibit
  non-temporary chidlren of a temporary MERGE table.

Bug 27660 - Falcon: merge table possible

  It was possible to create a MERGE table with non-MyISAM children.

Bug 30273 - merge tables: Can't lock file (errno: 155)

  This was a Windows-only bug. Table administration statements
  sometimes failed with "Can't lock file (errno: 155)".

These bugs are fixed by a new implementation of MERGE table open.

When opening a MERGE table in open_tables() we do now add the
child tables to the list of tables to be opened by open_tables()
(the "query_list"). The children are not opened in the handler at
this stage.

After opening the parent, open_tables() opens each child from the
now extended query_list. When the last child is opened, we remove
the children from the query_list again and attach the children to
the parent. This behaves similar to the old open. However it does
not open the MyISAM tables directly, but grabs them from the already
open children.

When closing a MERGE table in close_thread_table() we detach the
children only. Closing of the children is done implicitly because
they are in thd->open_tables.

For more detail see the comment at the top of ha_myisammrg.cc.

Changed from open_ltable() to open_and_lock_tables() in all places
that can be relevant for MERGE tables. The latter can handle tables
added to the list on the fly. When open_ltable() was used in a loop
over a list of tables, the list must be temporarily terminated
after every table for open_and_lock_tables().
table_list->required_type is set to FRMTYPE_TABLE to avoid open of
special tables. Handling of derived tables is suppressed.
These details are handled by the new function
open_n_lock_single_table(), which has nearly the same signature as
open_ltable() and can replace it in most cases.

In reopen_tables() some of the tables open by a thread can be
closed and reopened. When a MERGE child is affected, the parent
must be closed and reopened too. Closing of the parent is forced
before the first child is closed. Reopen happens in the order of
thd->open_tables. MERGE parents do not attach their children
automatically at open. This is done after all tables are reopened.
So all children are open when attaching them.

Special lock handling like mysql_lock_abort() or mysql_lock_remove()
needs to be suppressed for MERGE children or forwarded to the parent.
This depends on the situation. In loops over all open tables one
suppresses child lock handling. When a single table is touched,
forwarding is done.

Behavioral changes:
===================

This patch changes the behavior of temporary MERGE tables.
Temporary MERGE must have temporary children.
The old behavior was wrong. A temporary table is not locked. Hence
even non-temporary children were not locked. See
Bug 19627 - temporary merge table locking.

You cannot change the union list of a non-temporary MERGE table
when LOCK TABLES is in effect. The following does *not* work:
CREATE TABLE m1 ... ENGINE=MRG_MYISAM ...;
LOCK TABLES t1 WRITE, t2 WRITE, m1 WRITE;
ALTER TABLE m1 ... UNION=(t1,t2) ...;
However, you can do this with a temporary MERGE table.

You cannot create a MERGE table with CREATE ... SELECT, neither
as a temporary MERGE table, nor as a non-temporary MERGE table.
CREATE TABLE m1 ... ENGINE=MRG_MYISAM ... SELECT ...;
Gives error message: table is not BASE TABLE.


include/my_base.h:
  Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
              corrupts a MERGE table
  Added HA_EXTRA_ATTACH_CHILDREN and HA_EXTRA_DETACH_CHILDREN.
include/myisammrg.h:
  Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
              corrupts a MERGE table
  Added element 'children_attached' to MYRG_INFO.
  Added declarations for myrg_parent_open(),
  myrg_attach_children() and myrg_detach_children()
  for the new MERGE table open approach.
mysql-test/extra/binlog_tests/blackhole.test:
  Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
              corrupts a MERGE table
  Preliminarily added new error message with a comment.
mysql-test/r/create.result:
  Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
              corrupts a MERGE table
  Fixed test result.
mysql-test/r/delayed.result:
  Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
              corrupts a MERGE table
  Moved test result from here to merge.result.
mysql-test/r/merge.result:
  Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
              corrupts a MERGE table
  Fixed/added test result.
mysql-test/r/myisam.result:
  Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
              corrupts a MERGE table
  Moved test result for bug 8306 from here to merge.result.
mysql-test/suite/binlog/r/binlog_stm_blackhole.result:
  Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
              corrupts a MERGE table
  Fixed test result.
mysql-test/t/create.test:
  Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
              corrupts a MERGE table
  Fixed error number.
mysql-test/t/delayed.test:
  Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
              corrupts a MERGE table
  Moved test from here to merge.test.
mysql-test/t/merge.test:
  Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
              corrupts a MERGE table
  Fixed test for new temporary MERGE table behavior.
  Exchanged error numbers by symbolic codes.
  Added tests. Included are tests for bugs
  8306 (moved from myisam.test), 26379, 19627, 25038, 25700, 26377,
  26867, 27660, 30275, and 30273.
  Fixed changes resulting from disabled CREATE...SELECT.
  Integrated tests moved from delayed.test and myisam.test to here.
mysql-test/t/myisam.test:
  Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
              corrupts a MERGE table
  Moved test for bug 8306 from here to merge.test.
mysys/thr_lock.c:
  Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
              corrupts a MERGE table
  Added code to let the owner of a high priority lock (TL_WRITE_ONLY)
  to bypass its own lock.
sql/ha_ndbcluster_binlog.cc:
  Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
              corrupts a MERGE table
  Added 'thd' argument to init_tmp_table_share().
sql/handler.cc:
  Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
              corrupts a MERGE table
  Added 'thd' argument to init_tmp_table_share().
sql/mysql_priv.h:
  Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
              corrupts a MERGE table
  Removed declaration of check_merge_table_access(). It is now static
  in sql_parse.cc.
  Added declaration for fix_merge_after_open().
  Renamed open_and_lock_tables() to open_and_lock_tables_derived()
  with additional parameter 'derived'.
  Added inline functions simple_open_n_lock_tables() and
  open_and_lock_tables(), which call open_and_lock_tables_derived()
  and add the argument for 'derived'.
  Added new function open_n_lock_single_table(), which can be used
  as an replacement for open_ltable() in most situations. Internally
  it calls simple_open_n_lock_tables() so hat it is appropriate for
  MERGE tables.
  Added 'thd' argument to init_tmp_table_share().
sql/slave.cc:
  ug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
              corrupts a MERGE table
  Added comment.
sql/sql_base.cc:
  Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
              corrupts a MERGE table
  
  Defined new functions add_merge_table_list(),
  attach_merge_children(), detach_merge_children(), and
  fix_merge_after_open() for the new MERGE table open approach.
  
  Added calls of the new functions to
  close_handle_and_leave_table_as_lock(), close_thread_tables(),
  close_thread_table(), unlink_open_table(), reopen_name_locked_table(),
  reopen_table(), drop_locked_tables(), close_temporary_table(),
  and open_tables() respectively.
  
  Prevented special lock handling of merge children (like
  mysql_lock_remove, mysql_lock_merge or mysql_lock_abort)
  at many places. Some of these calls are forwarded to the
  parent table instead.
  
  Added code to set thd->some_tables_deleted for every thread that has
  a table open that we are flushing.
  Added code for MERGE tables to unlink_open_table().
  Added MERGE children to the list of unusable tables in open_table().
  Added MERGE table handling to reopen_table().
  Added lock handling and closing of a parent before the children
  in close_data_files_and_morph_locks().
  Added code for re-attaching children in reopen_tables().
  Added MYSQL_LOCK_NOTIFY_IF_NEED_REOPEN to the locking flags and
  error reporting after mysql_lock_tables() in reopen_tables().
  Added lock handling and closing of a parent before the children
  in close_old_data_files().
  Added lock handling and detaching in drop_locked_tables().
  Added code for removing the children list from the statement list
  to prepare for a repetition in open_tables().
  Added new function open_n_lock_single_table(), which can be used
  as an replacement for open_ltable() in most situations. Internally
  it calls simple_open_n_lock_tables() so hat it is appropriate for
  MERGE tables.
  Disabled use of open_ltable() for MERGE tables.
  Removed function simple_open_n_lock_tables(). It is now inline
  declared in mysql_priv.h.
  Renamed open_and_lock_tables() to open_and_lock_tables_derived()
  with additional parameter 'derived'. open_and_lock_tables() is now
  inline declared in mysql_priv.h.
  Added a check for end-of-list in two loops in lock_tables().
  Added 'thd' argument to init_tmp_table_share().
sql/sql_insert.cc:
  Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
              corrupts a MERGE table
  Changed from open_ltable() to open_n_lock_single_table() in
  handle_delayed_insert().
  Reestablished LEX settings after lex initialization.
  Added 'thd' argument to init_tmp_table_share().
sql/sql_parse.cc:
  Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
              corrupts a MERGE table
  Made check_merge_table_access() a static function.
  Disabled use of CREATE...SELECT for MERGE tables.
sql/sql_partition.cc:
  Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
              corrupts a MERGE table
  Fixed comment typo.
sql/sql_select.cc:
  Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
              corrupts a MERGE table
  Added 'thd' argument to init_tmp_table_share().
sql/sql_table.cc:
  Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
              corrupts a MERGE table
  Optimized use of mysql_ha_flush() in mysql_rm_table_part2().
  Disabled the use of MERGE tables with prepare_for_restore() and
  prepare_for_repair().
  Changed from open_ltable() to open_n_lock_single_table() in
  mysql_alter_table() and mysql_checksum_table().
  Disabled change of child list under LOCK TABLES.
  Initialized table_list->table in mysql_recreate_table().
sql/sql_trigger.cc:
  Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
              corrupts a MERGE table
  Added code for allowing CREATE TRIGGER under LOCK TABLE, to be able
  to test it with MERGE tables.
sql/table.cc:
  Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
              corrupts a MERGE table
  Added 'thd' argument to init_tmp_table_share().
  Setting table_map_id from query_id in init_tmp_table_share().
  Added member function TABLE::is_children_attached().
sql/table.h:
  Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
              corrupts a MERGE table
  Added access method get_table_def_version() to TABLE_SHARE.
  Added elements for MERGE tables to TABLE and TABLE_LIST.
storage/myisam/ha_myisam.cc:
  Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
              corrupts a MERGE table
  Added an unrelated comment to the function comment of table2myisam().
storage/myisam/ha_myisam.h:
  Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
              corrupts a MERGE table
  Added new member function MI_INFO::file_ptr().
storage/myisammrg/ha_myisammrg.cc:
  Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
              corrupts a MERGE table
  Added callback functions to support parent open and children attach
  of MERGE tables.
  Changed ha_myisammrg::open() to initialize storage engine structures
  and create a list of child tables only. Child tables are not opened.
  Added ha_myisammrg::attach_children(), which does now the main part
  of MERGE open.
  Added ha_myisammrg::detach_children().
  Added calls to ::attach_children() and ::detach_children() to
  ::extra() on HA_EXTRA_ATTACH_CHILDREN and HA_EXTRA_DETACH_CHILDREN
  respectively.
  Added a check for matching TEMPORARY type for children against
  parent.
  Added a check for table def version.
  Added support for thd->open_options to attach_children().
  Changed child path name generation for temporary tables so that
  it does nothing special for temporary tables.
storage/myisammrg/ha_myisammrg.h:
  Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
              corrupts a MERGE table
  Added elements to class ha_myisammrg to support the new
  open approach.
  Changed empty destructor definition to a declaration.
  Implemented in ha_myisammrg.cc.
  Added declaration for methods attach_children() and
  detach_children().
  Added definition for method table_ptr() for use with
  callback functions.
storage/myisammrg/myrg_close.c:
  Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
              corrupts a MERGE table
  Added a check to avoid closing of MyISAM tables when the
  child tables are not attached.
  Added freeing of rec_per_key_part when the child tables
  are not attached.
storage/myisammrg/myrg_extra.c:
  Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
              corrupts a MERGE table
  Some ::extra() functions and ::reset() can be called when
  children are detached.
storage/myisammrg/myrg_open.c:
  Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
              corrupts a MERGE table
  
  Kept old myrg_open() for MERGE use independent from MySQL.
  Removed an always true condition in myrg_open().
  Set children_attached for independent MERGE use in myrg_open().
  
  Added myrg_parent_open(), myrg_attach_children(), and
  myrg_detach_children() for the new MERGE table open approach.
mysql-test/r/merge-big.result:
  Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE corrupts a MERGE table
  New test result
mysql-test/t/merge-big.test:
  Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE corrupts a MERGE table
  New test case

            the wrong buffer
Post-pushbuild fix
Added test case for better coverage.


mysql-test/r/partition.result:
  Bug#22351 - handler::index_next_same() call to key_cmp_if_same() uses
              the wrong buffer
  Added test result
mysql-test/t/partition.test:
  Bug#22351 - handler::index_next_same() call to key_cmp_if_same() uses
              the wrong buffer
  Added test case

into  stella.local:/home2/mydev/mysql-5.1-bug4692


storage/myisam/mi_check.c:
  Auto merged

into  stella.local:/home2/mydev/mysql-5.1-bug4692


storage/myisam/mi_check.c:
  Auto merged

into  stella.local:/home2/mydev/mysql-5.0-bug4692


myisam/mi_check.c:
  Auto merged

into  stella.local:/home2/mydev/mysql-5.1-bug4692


storage/myisam/mi_check.c:
  Auto merged
mysql-test/r/myisam.result:
  Manual merge from 5.0.
mysql-test/t/myisam.test:
  Manual merge from 5.0.

Post-pushbuild fix

Added a purecov comment and a test for coverage of parallel
enable keys.


myisam/mi_check.c:
  Bug#4692 - DISABLE/ENABLE KEYS waste a space
  Added purecov comment.
mysql-test/r/myisam.result:
  Bug#4692 - DISABLE/ENABLE KEYS waste a space
  Added test result.
mysql-test/t/myisam.test:
  Bug#4692 - DISABLE/ENABLE KEYS waste a space
  Added test for coverage of parallel enable keys.

into  mysql.com:/home/svoj/devel/mysql/BUG31277/mysql-5.1-engines


include/mysql_com.h:
  Auto merged
sql-common/client.c:
  Auto merged
sql/mysql_priv.h:
  Auto merged
storage/myisam/mi_open.c:
  Auto merged
storage/myisam/mi_packrec.c:
  Auto merged
mysql-test/mysql-test-run.pl:
  Manual merge.
storage/myisam/mi_check.c:
  Manual merge.
storage/myisam/myisamchk.c:
  Manual merge.

into  mysql.com:/home/svoj/devel/mysql/BUG31277/mysql-5.0-engines


myisam/mi_check.c:
  Auto merged
myisam/mi_open.c:
  Auto merged
myisam/mi_packrec.c:
  Auto merged
myisam/myisamchk.c:
  Auto merged
mysql-test/mysql-test-run.pl:
  Auto merged
sql/mysql_priv.h:
  Auto merged
include/mysql_com.h:
  Use local.
sql-common/client.c:
  Use local.

into  mysql.com:/home/svoj/devel/mysql/BUG31277/mysql-4.1-engines

into  mysql.com:/home/svoj/devel/mysql/BUG31277/mysql-4.1-engines

Post pushbuild fix

Disabled test on windows due to bug#30459
(DATA/INDEX DIR for partitions not working on windows)

Patch from Mattias Jonsson.


mysql-test/r/partition_mgm.result:
  Bug#32091: Security breach via directory changes
  
  fixed non-windows lines.
mysql-test/t/partition_mgm.test:
  Bug#32091: Security breach via directory changes
  
  fixed non-windows lines.
mysql-test/t/partition_symlink.test:
  Bug#32091: Security breach via directory changes
  
  Added no_windows, since it is affected of bug#30459

into  stella.local:/home2/mydev/mysql-5.1-bug31210


libmysqld/lib_sql.cc:
  Auto merged

            if running as root

Every start of a server in the test suite raised that warning.

The cause was an unconditionla add of the --user option to the
server command line. Only the "root" user (effective user id == 0)
must use that option.

Added check for effective user id == 0 before adding --user.

Thanks to Magnus Svensson for the patch.


mysql-test/mysql-test-run.pl:
  Bug#32078 - Excessive warnings: One can only use the --user switch
              if running as root
  Added check for effective user id == 0 before adding --user
  in mysqld_arguments().

into  mattiasj-laptop.(none):/home/mattiasj/clones/mysql-5.0-engines_with_main

into  mattiasj-laptop.(none):/home/mattiasj/clones/mysql-5.1-last_with_main

into  mattiasj-laptop.(none):/home/mattiasj/clones/mysql-5.0-engines_with_main

into  mattiasj-laptop.(none):/home/mattiasj/clones/mysql-5.1-last_with_main


libmysqld/lib_sql.cc:
  Auto merged
mysql-test/include/mix1.inc:
  Auto merged
mysql-test/r/innodb_mysql.result:
  Auto merged
sql/event_scheduler.cc:
  Auto merged
sql/events.cc:
  Auto merged
sql/ha_ndbcluster_binlog.cc:
  Auto merged
sql/handler.cc:
  Auto merged
sql/item_func.cc:
  Auto merged
sql/slave.cc:
  Auto merged
sql/sql_acl.cc:
  Auto merged
sql/sql_base.cc:
  Auto merged
sql/sql_connect.cc:
  Auto merged
sql/sql_insert.cc:
  Auto merged
sql/sql_lex.h:
  Auto merged
sql/sql_yacc.yy:
  Auto merged

into  mysql.com:/home/svoj/devel/mysql/BUG32111/mysql-5.1-engines


mysql-test/r/symlink.result:
  Auto merged
mysql-test/t/symlink.test:
  Auto merged

into  mysql.com:/home/svoj/devel/mysql/BUG32111/mysql-5.0-engines


mysql-test/r/symlink.result:
  Auto merged
mysql-test/t/symlink.test:
  Auto merged

  Use proper variable for test.


mysql-test/t/symlink.test:
  Use proper variable for test.
mysql-test/r/symlink.result:
  Use proper variable for test.

into  stella.local:/home2/mydev/mysql-5.1-bug31210

into  mattiasj-laptop.(none):/home/mattiasj/clones/mysql-5.1-lastfinaltopush

into  mattiasj-laptop.(none):/home/mattiasj/clones/mysql-5.1-lastfinaltopush


mysql-test/r/partition.result:
  Auto merged

into  mattiasj-laptop.(none):/home/mattiasj/clones/mysql-5.1-lastfinaltopush

into  mattiasj-laptop.(none):/home/mattiasj/clones/mysql-5.1-lastfinaltopush

Buffer overflow due to wrong key length in partitioning

Changed to the correct key_length function.


sql/opt_range.cc:
  Bug#31705 Partitions: crash if varchar length > 65530
  Problem: buffer overflow due to wrong key-length
  
  Fix: Using correct key_length function
mysql-test/r/partition_datatype.result:
  Bug#31705 Partitions: crash if varchar length > 65530
  New test-result case for testing all column types
  used in key-partitioning.
  
  (For verifying correct key-length use)
mysql-test/t/partition_datatype.test:
  Bug#31705 Partitions: crash if varchar length > 65530 
  New test case for testing all column types
  used in key-partitioning.
  
  (For verifying correct key-length used)

Merge fix

partition_mgm did not require have_symlink.

Moved the test case to partition_symlink, which
require have_symlink, and should work on both *nix and
Windows


mysql-test/r/partition_mgm.result:
  Bug#32091: Security breach via directory changes
  
  Moved the test case to partition_symlink.
mysql-test/t/partition_mgm.test:
  Bug#32091: Security breach via directory changes
  
  Moved the test case to partition_symlink.
mysql-test/r/partition_symlink.result:
  Bug#32091: Security breach via directory changes
  
  Moved the test case to partition_symlink. It requires
  have_symlink.
mysql-test/t/partition_symlink.test:
  Bug#32091: Security breach via directory changes
  
  Moved the test case to partition_symlink. It requires
  have_symlink.

                partitioned table
    
Post-pushbuild fix
    
Pushbuild detected yet another need for lex initialization in
embedded server.


libmysqld/lib_sql.cc:
  Bug#31210 - INSERT DELAYED crashes server when used on
                      partitioned table
  Initialized lex for later use in open_table().

into  mysql.com:/home/svoj/devel/mysql/BUG32111/mysql-5.1-engines


mysql-test/r/symlink.result:
  Auto merged
mysql-test/t/symlink.test:
  Auto merged
mysys/my_symlink2.c:
  Auto merged

into  mysql.com:/home/svoj/devel/mysql/BUG32111/mysql-5.0-engines


mysql-test/r/symlink.result:
  Auto merged
mysql-test/t/symlink.test:
  Auto merged
mysys/my_symlink2.c:
  Auto merged

into  mysql.com:/home/svoj/devel/mysql/BUG32111/mysql-4.1-engines


mysys/my_symlink2.c:
  Auto merged
mysql-test/r/symlink.result:
  SCCS merged
mysql-test/t/symlink.test:
  SCCS merged

Adding missing drop of user created for test case.


mysql-test/r/mysqlbinlog.result:
  Result file change.
mysql-test/t/mysqlbinlog.test:
  Dropping user that was added earlier in the test.

    causes the Server to crash.

Post-pushbuild fix

Pushbuild genereted valgrind warnings.

Changed function to safer variant.


sql/sql_partition.cc:
  Bug#30695: An apostrophe ' in the comment of the ADD PARTITION
      causes the Server to crash.
  
  Fix for valgrind warning in pushbuild.
  String.c_prt fcn is not as safe as comment says.
  (gives valgrind errors in this case)

              partitioned table
  
Post-pushbuild fix
  
Pushbuild detected a new need for lex initialization in
embedded server.

Fixed test for INSERT DELAYED in partitions_hash.test so that
it works with embedded server.


libmysqld/lib_sql.cc:
  Bug#31210 - INSERT DELAYED crashes server when used on
                  partitioned table
  Initialized lex for later use in open_table().
mysql-test/r/partition_hash.result:
  Bug#31210 - INSERT DELAYED crashes server when used on
                  partitioned table
  Fixed test result for embedded server.
mysql-test/t/partition_hash.test:
  Bug#31210 - INSERT DELAYED crashes server when used on
                  partitioned table
  Fixed test for embedded server.