information function. This solve the problem of uninitialised zone
  that was detected by valgrind.

modified:
  storage/connect/myconn.cpp
  storage/connect/odbconn.cpp
  storage/connect/tabfmt.cpp
  storage/connect/tabutil.cpp
  storage/connect/tabwmi.cpp

Following variables do not require LOCK_open protection anymore:
- table_def_cache (renamed to tdc_hash) is protected by rw-lock
  LOCK_tdc_hash;
- table_def_shutdown_in_progress doesn't need LOCK_open protection;
- last_table_id use atomics;
- TABLE_SHARE::ref_count (renamed to TABLE_SHARE::tdc.ref_count)
  is protected by TABLE_SHARE::tdc.LOCK_table_share;
- TABLE_SHARE::next, ::prev (renamed to tdc.next and tdc.prev),
  oldest_unused_share, end_of_unused_share are protected by
  LOCK_unused_shares;
- TABLE_SHARE::m_flush_tickets (renamed to tdc.m_flush_tickets)
  is protected by TABLE_SHARE::tdc.LOCK_table_share;
- refresh_version (renamed to tdc_version) use atomics.

  when deleting one key of a INI table with layout=Row. The same happens
  for layout=column but this is normal as one line is one section.

modified:
  storage/connect/tabsys.cpp

- Should fix a valgrind warning in CHRBLK::GetValPtrEx

modified:
  storage/connect/valblk.cpp

Complete the merge of magne.mahre@oracle.com-20101102115354-vxcaxminmzglzalk
(WL#5185 Remove deprecated 5.1 features)

remove unused HA_READ_OUT_OF_SYNC

* use sql_mode_for_dates() where appropriate.
* always specify an argument for sql_mode_for_dates()
  (future-proof. easier to notice and fix if the caller
   will start using thd from a local variable or an argument)

modified:
  storage/connect/ha_connect.cc
  storage/connect/ha_connect.h
  storage/connect/plgdbsem.h

- Fiw a bug making records_in_range sometimes return a negative
  value.

modified:
  storage/connect/xindex.cpp

remove unused HA_CAN_EXPORT
(with the merge of "FLUSH TABLE <table_list> FOR EXPORT",
this functionality should be added back, but differently -
no table flag, handler::extra() returns an error instead)

remove unused HA_BLOCK_CONST_TABLE

remove half-applied "Bug#14521864: MYSQL 5.1 TO 5.5 BUGS PARTITIONING"

fix simple_rename_or_index_change() to reuse alter_table_manage_keys()

it's not nice when unconfigured gtid prevents SHOW VARIABLES from working

remove TDC_RT_REMOVE_NOT_OWN_AND_MARK_NOT_USABLE

use get_table_def_key() instead of create_table_def_key() where appropriate

Fix bug MDEV-4885: When performance schema is disabled, autosized parameters show 18446744073709551615 instead of -1
(patch by Serg)

modified:
  storage/connect/ha_connect.h

  Crash on second SELECT was because tshp was not reset to NULL in case of error.

modified:
  storage/connect/ha_connect.cc
  storage/connect/tabutil.cpp

modified:
  storage/connect/ha_connect.cc

  special columns are processed. This will be documented.
  Also some code cleanup and some changes to prepare the indexing of
  nullable columns (not achieve yet)

modified:
  storage/connect/colblk.cpp
  storage/connect/colblk.h
  storage/connect/connect.cc
  storage/connect/connect.h
  storage/connect/ha_connect.cc
  storage/connect/ha_connect.h
  storage/connect/macutil.cpp
  storage/connect/mycat.cc
  storage/connect/plgdbsem.h
  storage/connect/reldef.cpp
  storage/connect/reldef.h
  storage/connect/table.cpp
  storage/connect/tabmysql.cpp
  storage/connect/tabmysql.h
  storage/connect/tabodbc.h
  storage/connect/tabtbl.cpp
  storage/connect/tabutil.h
  storage/connect/value.h
  storage/connect/xindex.cpp
  storage/connect/xindex.h
  storage/connect/xtable.h

MDEV-4797 - Spider crash on show create table spider table and replication
            multi source to one of the partitions
MDEV-4747 - Spider: add missing install_spider.sql

Made sure that innodb tables for persistent statistics would not
considered by the server as system tables.

mysql-test/suite/rpl/t/rpl_err_ignoredtable.test:
  Wait until thread is killed.

  concerning a nullable column wrongly created as indexed (MDEV-4494)

modified:
  storage/connect/ha_connect.cc

            innodb_ft_user_stopword_table to DEFAULT

Setting plugin string variable with PLUGIN_VAR_MEMALLOC flag
to NULL causes server crash.

mysql-test/suite/sys_vars/r/innodb_ft_user_stopword_table_basic.result:
  Reset innodb_ft_user_stopword_table. Also tests MDEV-4801.
mysql-test/suite/sys_vars/t/innodb_ft_user_stopword_table_basic.test:
  Reset innodb_ft_user_stopword_table. Also tests MDEV-4801.
sql/sql_plugin.cc:
  When we got NULL value, do not strdup(NULL).

reverted the change done for WL 4443.

   Field_geom::store() should check if the source is it's value.

Fixed perfschema.relaylog failure.

mysql-test/suite/perfschema/r/relaylog.result:
  Failed file opens are not shown in P_S. Relevant revision:
  marc.alff@oracle.com-20120807154151-cwuazxu341rvrnmg

Temorary fix for a number of replication tests (rpl.rpl_temp_table_mix_row 
rpl.rpl_trunc_temp rpl.rpl_current_user rpl.rpl_gtid_master_promote):

- THD::decide_logging_format() should not assume that mysql.gtid_slave_pos is 
  a non-replicated table. This used to cause unintended behavior for COMMIT 
  statement: replication would switch to row-based, etc.

The question of what should be done when a user issues a statement that
explicitly modifies mysql.gtid_slave_pos table remains open.