There was two problems:
The first was the symptom, caused by bad error handling in
ha_partition. It did not handle print_error etc. when
having no partitions (when used by dummy handler).

The second was the real problem that when dropping tables
it reused the table type (storage engine) from when the lock
was asked for, not the table type that it had when gaining
the exclusive name lock. So that it tried to delete tables
from wrong storage engines.

Solutions for the first problem was to accept some handler
calls to the partitioning handler even if it was not setup
with any partitions, and also if possible fallback
to use the base handler's default functions.

Solution for the second problem was to remove the optimization
to reuse the definition from the cache, instead always check
the frm-file when holding the LOCK_open mutex

(updated with a fix for a debug print crash and better
comments as required by reviewer, and removed optimization
to avoid reading the frm-file).

mysql-test/r/partition_debug_sync.result:
  Bug#42438: Crash ha_partition::change_table_ptr
  
  New result file using DEBUG_SYNC for deterministic results.
mysql-test/t/partition_debug_sync.test:
  Bug#42438: Crash ha_partition::change_table_ptr
  
  New test file using DEBUG_SYNC for deterministic results.
sql/ha_partition.cc:
  Bug#42438: Crash ha_partition::change_table_ptr
  
  allow some handler calls, used by error handling, even when
  no partitions are setup. Fallback to default handling if possible.
sql/sql_base.cc:
  Bug#42438: Crash ha_partition::change_table_ptr
  
  Added DEBUG_SYNC point for deterministic test cases.
sql/sql_table.cc:
  Bug#42438: Crash ha_partition::change_table_ptr
  
  Always use the table type written in the .frm-file
  (i.e. the current table type) when deleting a table.
  
  Moved the check for log-table to not depend of the cache.
  
  Added DEBUG_SYNC points for deterministic test cases.

Problem: SHOW CREATE FUNCTION and SELECT DTD_IDENTIFIER FROM I_S.ROUTINES
returned wrong values in case of ENUM return data type and UCS2
character set.

Fix: the string to collect returned data type was incorrectly set to
"binary" character set, therefore UCS2 values where returned with
extra '\0' characters.
Setting string character set to creation_ctx->get_client_cs()
in sp_find_routine(), and to system_charset_info in sp_create_routine
fixes the problem.

Adding tests:
- the original test with Latin letters
- an extra test with non-Latin letters

the last IF ELSE part which decides the plugin name is not relevant as we still have
to substitute the occurences of INNOBASE with INNODB_PLUGIN.
Remove the last IF ELSE part in CMakeLists.txt as it doesn't make sense in 5.1.

manual merge 5.0-->5.1, updating InnoDB plugin.

The bug 38816 changed the lock that protects THD::query from
LOCK_thread_count to LOCK_thd_data, but didn't update the associated
InnoDB functions.

1. The innobase_mysql_prepare_print_arbitrary_thd and the
innobase_mysql_end_print_arbitrary_thd InnoDB functions have been
removed, since now we have a per-thread mutex: now we don't need to wrap
several inter-thread access tries to THD::query with a single global
LOCK_thread_count lock, so we can simplify the code.

2. The innobase_mysql_print_thd function has been modified to lock
LOCK_thd_data in direct way.

and rpl.rpl_get_master_version_and_clock.

applied revisions: r6201, r6202, r6207, r6208, r6210

r6202 - port fix for BUG#48469 to plugin

Detailed revision comments:

r6201 | marko | 2009-11-19 14:09:11 +0200 (Thu, 19 Nov 2009) | 2 lines
branches/zip: ha_innobase::add_index(): Clarify the comment
on orphaned tables when creating a primary key.
r6202 | jyang | 2009-11-19 15:01:00 +0200 (Thu, 19 Nov 2009) | 8 lines
branches/zip: Function fseg_free() is no longer defined
in branches/zip. To port fix for bug #48469 to zip,
we can use btr_free_root() which frees the page,
and also does not require mini-transaction.

Approved by Marko.


r6207 | vasil | 2009-11-20 10:19:14 +0200 (Fri, 20 Nov 2009) | 54 lines
branches/zip: Merge r6198:6206 from branches/5.1:

(r6203 was skipped as it is already in branches/zip)

  ------------------------------------------------------------------------
  r6200 | vasil | 2009-11-19 12:14:23 +0200 (Thu, 19 Nov 2009) | 4 lines
  Changed paths:
     M /branches/5.1/btr/btr0btr.c
  
  branches/5.1:
  
  White space fixup - indent under the opening (
  
  ------------------------------------------------------------------------
  r6203 | jyang | 2009-11-19 15:12:22 +0200 (Thu, 19 Nov 2009) | 8 lines
  Changed paths:
     M /branches/5.1/btr/btr0btr.c
  
  branches/5.1: Use btr_free_root() instead of fseg_free() for
  the fix of bug #48469, because fseg_free() is not defined
  in the zip branch. And we could save one mini-trasaction started
  by fseg_free().
  
  Approved by Marko.
  
  
  ------------------------------------------------------------------------
  r6205 | jyang | 2009-11-20 07:55:48 +0200 (Fri, 20 Nov 2009) | 11 lines
  Changed paths:
     M /branches/5.1/handler/ha_innodb.cc
  
  branches/5.1: Add a special case to handle the Duplicated Key error
  and return DB_ERROR instead. This is to avoid a possible SIGSEGV
  by mysql error handling re-entering the storage layer for dup key
  info without proper table handle.
  This is to prevent a server crash when error situation in bug
  #45961 "DDL on partitioned innodb tables leaves data dictionary
  in an inconsistent state" happens.
  
  rb://157 approved by Sunny Bains.
  
  
  ------------------------------------------------------------------------
  r6206 | jyang | 2009-11-20 09:38:43 +0200 (Fri, 20 Nov 2009) | 5 lines
  Changed paths:
     M /branches/5.1/handler/ha_innodb.cc
  
  branches/5.1: Fix a minor code formating issue for 
  the parenthesis iplacement of the if condition in
  rename_table().
  
  
  ------------------------------------------------------------------------

r6208 | vasil | 2009-11-20 10:49:24 +0200 (Fri, 20 Nov 2009) | 4 lines
branches/zip:

Add ChangeLog entry for c6207.

r6210 | vasil | 2009-11-20 23:39:48 +0200 (Fri, 20 Nov 2009) | 3 lines
branches/zip:

Whitespace fixup.

applied revisions: r6197, r6198, r6199
r6197 - BUG#48317
r6199 - BUG#48526

Detailed revision comments:

r6197 | calvin | 2009-11-19 09:32:55 +0200 (Thu, 19 Nov 2009) | 6 lines
branches/zip: merge the fix of bug#48317 (CMake file)

Due to MySQL changes to the CMake, it is no longer able
to build InnoDB plugin as a static library on Windows.
The fix is proposed by Vlad of MySQL.

r6198 | vasil | 2009-11-19 09:44:31 +0200 (Thu, 19 Nov 2009) | 4 lines
branches/zip:

Add ChangeLog entry for r6197.

r6199 | vasil | 2009-11-19 12:10:12 +0200 (Thu, 19 Nov 2009) | 31 lines
branches/zip: Merge r6159:6198 from branches/5.1:

  ------------------------------------------------------------------------
  r6187 | jyang | 2009-11-18 05:27:30 +0200 (Wed, 18 Nov 2009) | 9 lines
  Changed paths:
     M /branches/5.1/btr/btr0btr.c
  
  branches/5.1: Fix bug #48469 "when innodb tablespace is
  configured too small, crash and corruption!". Function
  btr_create() did not check the return status of fseg_create(),
  and continue the index creation even there is no sufficient
  space.
  
  rb://205 Approved by Marko
  
  
  ------------------------------------------------------------------------
  r6188 | jyang | 2009-11-18 07:14:23 +0200 (Wed, 18 Nov 2009) | 8 lines
  Changed paths:
     M /branches/5.1/data/data0type.c
  
  branches/5.1: Fix bug #48526 "Data type for float and
  double is incorrectly reported in InnoDB table monitor".
  Certain datatypes are not printed correctly in
  dtype_print().
  
  rb://204 Approved by Marko.
  
  
  ------------------------------------------------------------------------

applied revisions: r6185, r6186, r6189, r6194

r6185 - only code changes incorporated, changesets which change
        innodb tests in the main mysql suite are discarded

r61889 - Fixes BUG#48782

Detailed revision comments:

r6185 | marko | 2009-11-17 16:44:20 +0200 (Tue, 17 Nov 2009) | 16 lines
branches/zip: Report duplicate table names
to the client connection, not to the error log.  This change will allow
innodb-index.test to be re-enabled.  It was previously disabled, because
mysql-test-run does not like output in the error log.

row_create_table_for_mysql(): Do not output anything to the error log
when reporting DB_DUPLICATE_KEY.  Let the caller report the error.
Add a TODO comment that the dict_table_t object is apparently not freed
when an error occurs.

create_table_def(): Convert InnoDB table names to the character set
of the client connection for reporting.  Use my_error(ER_WRONG_COLUMN_NAME)
for reporting reserved column names.  Report my_error(ER_TABLE_EXISTS_ERROR)
when row_create_table_for_mysql() returns DB_DUPLICATE_KEY.

rb://206
r6186 | vasil | 2009-11-17 16:48:14 +0200 (Tue, 17 Nov 2009) | 4 lines
branches/zip:

Add ChangeLog entry for r6185.

r6189 | marko | 2009-11-18 11:36:18 +0200 (Wed, 18 Nov 2009) | 5 lines
branches/zip: ha_innobase::add_index(): When creating the primary key
and the table is being locked by another transaction,
do not attempt to drop the table. (Bug #48782)

Approved by Sunny Bains over IM
r6194 | vasil | 2009-11-19 09:24:45 +0200 (Thu, 19 Nov 2009) | 5 lines
branches/zip:

Increment version number from 1.0.5 to 1.0.6 since 1.0.5 was just released
by MySQL and we will soon release 1.0.6.

Fixes several test cases.

applied revisions: r6181, r6182, r6183, r6184

r6183 - changes are made only to tests in innodb suite which is only 
        innodb-consistent-master.opt

Detailed revision comments:

r6181 | vasil | 2009-11-17 12:21:41 +0200 (Tue, 17 Nov 2009) | 33 lines
branches/zip:

At the end of innodb-index.test: restore the environment as it was before
the test was started to silence this warning:

  MTR's internal check of the test case 'main.innodb-index' failed.
  This means that the test case does not preserve the state that existed
  before the test case was executed.  Most likely the test case did not
  do a proper clean-up.
  This is the diff of the states of the servers before and after the
  test case was executed:
  mysqltest: Logging to '/tmp/autotest.sh-20091117_033000-zip.btyZwu/mysql-5.1/mysql-test/var/tmp/check-mysqld_1.log'.
  mysqltest: Results saved in '/tmp/autotest.sh-20091117_033000-zip.btyZwu/mysql-5.1/mysql-test/var/tmp/check-mysqld_1.result'.
  mysqltest: Connecting to server localhost:13000 (socket /tmp/autotest.sh-20091117_033000-zip.btyZwu/mysql-5.1/mysql-test/var/tmp/mysqld.1.sock) as 'root', connection 'default', attempt 0 ...
  mysqltest: ... Connected.
  mysqltest: Start processing test commands from './include/check-testcase.test' ...
  mysqltest: ... Done processing test commands.
  --- /tmp/autotest.sh-20091117_033000-zip.btyZwu/mysql-5.1/mysql-test/var/tmp/check-mysqld_1.result	2009-11-17 13:10:40.000000000 +0300
  +++ /tmp/autotest.sh-20091117_033000-zip.btyZwu/mysql-5.1/mysql-test/var/tmp/check-mysqld_1.reject	2009-11-17 13:10:54.000000000 +0300
  @@ -84,7 +84,7 @@
   INNODB_DOUBLEWRITE	ON
   INNODB_FAST_SHUTDOWN	1
   INNODB_FILE_FORMAT	Antelope
  -INNODB_FILE_FORMAT_CHECK	Antelope
  +INNODB_FILE_FORMAT_CHECK	Barracuda
   INNODB_FILE_PER_TABLE	OFF
   INNODB_FLUSH_LOG_AT_TRX_COMMIT	1
   INNODB_FLUSH_METHOD	
  
  mysqltest: Result content mismatch
  
  not ok

r6182 | marko | 2009-11-17 13:49:15 +0200 (Tue, 17 Nov 2009) | 1 line
branches/zip: Set svn:eol-style on mysql-test files.
r6183 | marko | 2009-11-17 13:51:16 +0200 (Tue, 17 Nov 2009) | 1 line
branches/zip: Prepend loose_ to plugin-only mysql-test options.
r6184 | marko | 2009-11-17 13:52:01 +0200 (Tue, 17 Nov 2009) | 1 line
branches/zip: innodb-index.test: Restore innodb_file_format_check.

1. add testcase for BUG#46676
2. Allow CREATE INDEX to be interrupted
3. ha_innobase::change_active_index(): When the history is
   missing, report it to the client, not to the error log
4. ChangeLog entries

appplied revisions:r6169, r6170, r6175, r6177, r6179

Detailed revision comments:

r6169 | calvin | 2009-11-12 14:40:43 +0200 (Thu, 12 Nov 2009) | 6 lines
branches/zip: add test case for bug#46676

This crash is reproducible with InnoDB plugin 1.0.4 + MySQL 5.1.37.
But no longer reproducible after MySQL 5.1.38 (with plugin 1.0.5).
Add test case to catch future regression.

r6170 | marko | 2009-11-12 15:49:08 +0200 (Thu, 12 Nov 2009) | 4 lines
branches/zip: Allow CREATE INDEX to be interrupted.  (Issue #354)

rb://183 approved by Heikki Tuuri

r6175 | vasil | 2009-11-16 20:07:39 +0200 (Mon, 16 Nov 2009) | 4 lines
branches/zip:

Wrap line at 78th char in the ChangeLog

r6177 | calvin | 2009-11-16 20:20:38 +0200 (Mon, 16 Nov 2009) | 2 lines
branches/zip: add an entry to ChangeLog for r6065

r6179 | marko | 2009-11-17 10:19:34 +0200 (Tue, 17 Nov 2009) | 2 lines
branches/zip: ha_innobase::change_active_index(): When the history is
missing, report it to the client, not to the error log.

applied revisions: r6161, r6162, r6163

Detailed revision comments:

r6161 | vasil | 2009-11-11 15:36:16 +0200 (Wed, 11 Nov 2009) | 4 lines
branches/zip:

Add changelog entry for r6160.

r6162 | vasil | 2009-11-11 16:00:12 +0200 (Wed, 11 Nov 2009) | 4 lines
branches/zip:

Add ChangeLog for r6157.

r6163 | calvin | 2009-11-11 17:53:20 +0200 (Wed, 11 Nov 2009) | 8 lines
branches/zip: Exclude thd_binlog_filter_ok() when building
with older version of MySQL.

thd_binlog_filter_ok() is introduced in MySQL 5.1.41. But the
plugin can be built with MySQL prior to 5.1.41.

Approved by Heikki (on IM).

applied revisions: r6160

Detailed revision comments:

r6160 | vasil | 2009-11-11 15:33:49 +0200 (Wed, 11 Nov 2009) | 72 lines
branches/zip: Merge r6152:6159 from branches/5.1:

(r6158 was skipped as an equivallent change has already been merged from MySQL)

  ------------------------------------------------------------------------
  r6154 | calvin | 2009-11-11 02:51:17 +0200 (Wed, 11 Nov 2009) | 17 lines
  Changed paths:
     M /branches/5.1/include/os0file.h
     M /branches/5.1/os/os0file.c
  
  branches/5.1: fix bug#3139: Mysql crashes: 'windows error 995'
  after several selects on a large DB
  
  During stress environment, Windows AIO may fail with error code
  ERROR_OPERATION_ABORTED. InnoDB does not handle the error, rather
  crashes. The cause of the error is unknown, but likely due to
  faulty hardware or driver.
  
  This patch introduces a new error code OS_FILE_OPERATION_ABORTED,
  which maps to Windows ERROR_OPERATION_ABORTED (995). When the error
  is detected during AIO, the InnoDB will issue a synchronous retry
  (read/write).
  
  This patch has been extensively tested by MySQL support.
  
  Approved by: Marko
  rb://196
  ------------------------------------------------------------------------
  r6158 | vasil | 2009-11-11 14:52:14 +0200 (Wed, 11 Nov 2009) | 37 lines
  Changed paths:
     M /branches/5.1/handler/ha_innodb.cc
     M /branches/5.1/handler/ha_innodb.h
  
  branches/5.1:
  
  Merge a change from MySQL:
  (this has been reviewed by Calvin and Marko, and Calvin says Luis has
  incorporated Marko's suggestions)
  
    ------------------------------------------------------------
    revno: 3092.5.1
    committer: Luis Soares <luis.soares@sun.com>
    branch nick: mysql-5.1-bugteam
    timestamp: Thu 2009-09-24 15:52:52 +0100
    message:
      BUG#42829: binlogging enabled for all schemas regardless of
      binlog-db-db / binlog-ignore-db
            
      InnoDB will return an error if statement based replication is used
      along with transaction isolation level READ-COMMITTED (or weaker),
      even if the statement in question is filtered out according to the
      binlog-do-db rules set. In this case, an error should not be printed.
            
      This patch addresses this issue by extending the existing check in
      external_lock to take into account the filter rules before deciding to
      print an error. Furthermore, it also changes decide_logging_format to
      take into consideration whether the statement is filtered out from 
      binlog before decision is made.
    added:
      mysql-test/suite/binlog/r/binlog_stm_do_db.result
      mysql-test/suite/binlog/t/binlog_stm_do_db-master.opt
      mysql-test/suite/binlog/t/binlog_stm_do_db.test
    modified:
      sql/sql_base.cc
      sql/sql_class.cc
      storage/innobase/handler/ha_innodb.cc
      storage/innobase/handler/ha_innodb.h
      storage/innodb_plugin/handler/ha_innodb.cc
      storage/innodb_plugin/handler/ha_innodb.h
  
  ------------------------------------------------------------------------

applied revisions: r6157

Detailed revision comments:

r6157 | jyang | 2009-11-11 14:27:09 +0200 (Wed, 11 Nov 2009) | 10 lines
branches/zip: Fix an issue that a local variable defined
in innodb_file_format_check_validate() is being referenced
across function in innodb_file_format_check_update().
In addition, fix "set global innodb_file_format_check =
DEFAULT" call.
Bug #47167: "set global innodb_file_format_check" cannot
set value by User-Defined Variable."
rb://169 approved by Sunny Bains and Marko.

Enable partition_innodb_plugin.test for BUG#32430
applied revisions: r6134, r6137, r6153

Detailed revision comments:

r6134 | marko | 2009-11-04 09:57:29 +0200 (Wed, 04 Nov 2009) | 5 lines
branches/zip: innobase_convert_identifier(): Convert table names with
explain_filename() to address Bug #32430: 'show innodb status'
causes errors Invalid (old?) table or database name in logs.

rb://134 approved by Sunny Bains
r6137 | marko | 2009-11-04 15:24:28 +0200 (Wed, 04 Nov 2009) | 1 line
branches/zip: dict_index_too_big_for_undo(): Correct a typo.
r6153 | vasil | 2009-11-10 15:33:22 +0200 (Tue, 10 Nov 2009) | 145 lines
branches/zip: Merge r6125:6152 from branches/5.1:

(everything except the last white-space change was skipped as it is already
in branches/zip)

  ------------------------------------------------------------------------
  r6127 | vasil | 2009-10-30 11:18:25 +0200 (Fri, 30 Oct 2009) | 18 lines
  Changed paths:
     M /branches/5.1/Makefile.am
     M /branches/5.1/mysql-test/innodb-autoinc.result
     M /branches/5.1/mysql-test/innodb-autoinc.test
  
  branches/5.1:
  
  Backport c6121 from branches/zip:
  
    ------------------------------------------------------------------------
    r6121 | sunny | 2009-10-30 01:42:11 +0200 (Fri, 30 Oct 2009) | 7 lines
    Changed paths:
       M /branches/zip/mysql-test/innodb-autoinc.result
    
    branches/zip: This test has been problematic for sometime now. The underlying
    bug is that the data dictionaries get out of sync. In the AUTOINC code we
    try and apply salve to the symptoms. In the past MySQL made some unrelated
    change and the dictionaries stopped getting out of sync and this test started
    to fail. Now, it seems they have reverted that changed and the test is
    passing again. I suspect this is not he last time that this test will change.
    
    ------------------------------------------------------------------------
  
  ------------------------------------------------------------------------
  r6129 | vasil | 2009-10-30 17:14:22 +0200 (Fri, 30 Oct 2009) | 4 lines
  Changed paths:
     M /branches/5.1/Makefile.am
  
  branches/5.1:
  
  Revert a change to Makefile.am that sneaked unnoticed in c6127.
  
  ------------------------------------------------------------------------
  r6136 | marko | 2009-11-04 12:28:10 +0200 (Wed, 04 Nov 2009) | 15 lines
  Changed paths:
     M /branches/5.1/handler/ha_innodb.cc
     M /branches/5.1/include/ha_prototypes.h
     M /branches/5.1/ut/ut0ut.c
  
  branches/5.1: Port r6134 from branches/zip:
  
    ------------------------------------------------------------------------
    r6134 | marko | 2009-11-04 07:57:29 +0000 (Wed, 04 Nov 2009) | 5 lines
  
    branches/zip: innobase_convert_identifier(): Convert table names with
    explain_filename() to address Bug #32430: 'show innodb status'
    causes errors Invalid (old?) table or database name in logs.
  
    rb://134 approved by Sunny Bains
    ------------------------------------------------------------------------
  
  innobase_print_identifier(): Replace with innobase_convert_name().
  
  innobase_convert_identifier(): New function, called by innobase_convert_name().
  ------------------------------------------------------------------------
  r6149 | vasil | 2009-11-09 11:15:01 +0200 (Mon, 09 Nov 2009) | 5 lines
  Changed paths:
     M /branches/5.1/CMakeLists.txt
  
  branches/5.1:
  
  Followup to r5700: Adjust the changes so they are the same as in the BZR
  repository.
  
  ------------------------------------------------------------------------
  r6150 | vasil | 2009-11-09 11:43:31 +0200 (Mon, 09 Nov 2009) | 58 lines
  Changed paths:
     M /branches/5.1/handler/ha_innodb.cc
  
  branches/5.1:
  
  Merge a part of r2911.5.5 from MySQL:
  (the other part of this was merged in c5700)
  
    ------------------------------------------------------------
    revno: 2911.5.5
    committer: Vladislav Vaintroub <vvaintroub@mysql.com>
    branch nick: 5.1-innodb_plugin
    timestamp: Wed 2009-06-10 10:59:49 +0200
    message:
      Backport WL#3653 to 5.1 to enable bundled innodb plugin.
      Remove custom DLL loader code from innodb plugin code, use 
      symbols exported from mysqld.
    removed:
      storage/innodb_plugin/handler/handler0vars.h
      storage/innodb_plugin/handler/win_delay_loader.cc
    added:
      storage/mysql_storage_engine.cmake
      win/create_def_file.js
    modified:
      CMakeLists.txt
      include/m_ctype.h
      include/my_global.h
      include/my_sys.h
      include/mysql/plugin.h
      libmysqld/CMakeLists.txt
      mysql-test/mysql-test-run.pl
      mysql-test/t/plugin.test
      mysql-test/t/plugin_load-master.opt
      mysys/charset.c
      sql/CMakeLists.txt
      sql/handler.h
      sql/mysql_priv.h
      sql/mysqld.cc
      sql/sql_class.cc
      sql/sql_class.h
      sql/sql_list.h
      sql/sql_profile.h
      storage/Makefile.am
      storage/archive/CMakeLists.txt
      storage/blackhole/CMakeLists.txt
      storage/csv/CMakeLists.txt
      storage/example/CMakeLists.txt
      storage/federated/CMakeLists.txt
      storage/heap/CMakeLists.txt
      storage/innobase/CMakeLists.txt
      storage/innobase/handler/ha_innodb.cc
      storage/innodb_plugin/CMakeLists.txt
      storage/innodb_plugin/handler/ha_innodb.cc
      storage/innodb_plugin/handler/handler0alter.cc
      storage/innodb_plugin/handler/i_s.cc
      storage/innodb_plugin/plug.in
      storage/myisam/CMakeLists.txt
      storage/myisammrg/CMakeLists.txt
      win/Makefile.am
      win/configure.js
  
  ------------------------------------------------------------------------
  r6152 | vasil | 2009-11-10 15:30:20 +0200 (Tue, 10 Nov 2009) | 4 lines
  Changed paths:
     M /branches/5.1/handler/ha_innodb.cc
  
  branches/5.1:
  
  White space fixup.
  
  ------------------------------------------------------------------------

Detailed revision comments:

r6130 | marko | 2009-11-02 11:42:56 +0200 (Mon, 02 Nov 2009) | 9 lines
branches/zip: Free all resources at shutdown. Set pointers to NULL, so
that Valgrind will not complain about freed data structures that are
reachable via pointers.  This addresses Bug #45992 and Bug #46656.

This patch is mostly based on changes copied from branches/embedded-1.0,
mainly c5432, c3439, c3134, c2994, c2978, but also some other code was
copied.  Some added cleanup code is specific to MySQL/InnoDB.

rb://199 approved by Sunny Bains

      
SET TRANSACTION ISOLATION LEVEL is used to temporarily set
the trans.iso.level for the next transaction.  After the
transaction, the iso.level is (re-)set to value of the 
session variable 'tx_isolation'.

The bug is caused by setting the thd->variables.tx_isolation 
field to the value of the session variable upon each
statement commit.  It should only be set at the end of the
full transaction.

The fix has been to remove the setting of the variable in
ha_autocommit_or_rollback if we're in a transaction, as it 
will be correctly set in  either ha_rollback or 
ha_commit_one_phase.  

If, on the other hand, we're in  autocommit mode, tx_isolation 
will be explicitly set here.



mysql-test/t/innodb_mysql.test:
  "SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED" sets
  the trans.isolation for the next transaction.  We test
  that @@tx_isolation keeps this value during the transaction,
  and is only reset back to the session value at the end
  of the transaction.

1. Enabling the disabled test for BUG#32430 for builtin innodb
2. Disabling the innodb-autoinc.test for innodb plugin.

1. BUG#47720 - REPLACE INTO Autoincrement column with negative values.

Detailed revision comments:

r6235 | sunny | 2009-11-26 01:14:42 +0200 (Thu, 26 Nov 2009) | 9 lines
branches/5.1: Fix Bug#47720 - REPLACE INTO Autoincrement column with negative values.

This bug is similiar to the negative autoinc filter patch from earlier,
with the additional handling of filtering out the negative column values
set explicitly by the user.

rb://184
Approved by Heikki.

1. BUG#49032 - auto_increment field does not initialize to last value 
               in InnoDB Storage Engine

2. Fix whitespace issues and fix tests and make read float/double arg const

Detailed revision comments:

r6231 | sunny | 2009-11-25 10:26:27 +0200 (Wed, 25 Nov 2009) | 7 lines
branches/5.1: Fix BUG#49032 - auto_increment field does not initialize to last value in InnoDB Storage Engine.

We use the appropriate function to read the column value for non-integer
autoinc column types, namely float and double.

rb://208. Approved by Marko.

r6232 | sunny | 2009-11-25 10:27:39 +0200 (Wed, 25 Nov 2009) | 2 lines
branches/5.1: This is an interim fix, fix white space errors.

r6233 | sunny | 2009-11-25 10:28:35 +0200 (Wed, 25 Nov 2009) | 2 lines
branches/5.1: This is an interim fix, fix tests and make read float/double arg const.


r6234 | sunny | 2009-11-25 10:29:03 +0200 (Wed, 25 Nov 2009) | 2 lines
branches/5.1: This is an interim fix, fix whitepsace issues.

1. BUG#48482 - innodb-autoinc.test fails with results difference

2. enable the disabled test

Detailed revision comments:

r6230 | sunny | 2009-11-24 23:52:43 +0200 (Tue, 24 Nov 2009) | 3 lines
branches/5.1: Fix autoinc failing test results.
(this should be skipped when merging 5.1 into zip)

1. BUG#45961 - DDL on partitioned innodb tables leaves data dictionary 
               in an inconsistent state

2. Fix formatting

Detailed revision comments:

r6205 | jyang | 2009-11-20 07:55:48 +0200 (Fri, 20 Nov 2009) | 11 lines
branches/5.1: Add a special case to handle the Duplicated Key error
and return DB_ERROR instead. This is to avoid a possible SIGSEGV
by mysql error handling re-entering the storage layer for dup key
info without proper table handle.
This is to prevent a server crash when error situation in bug
#45961 "DDL on partitioned innodb tables leaves data dictionary
in an inconsistent state" happens.

rb://157 approved by Sunny Bains.


r6206 | jyang | 2009-11-20 09:38:43 +0200 (Fri, 20 Nov 2009) | 3 lines
branches/5.1: Non-functional change, fix formatting.

1. BUG#48526 - Data type for float and double is incorrectly 
               reported in InnoDB table monitor

Detailed revision comments:

r6188 | jyang | 2009-11-18 07:14:23 +0200 (Wed, 18 Nov 2009) | 8 lines
branches/5.1: Fix bug #48526 "Data type for float and
double is incorrectly reported in InnoDB table monitor".
Certain datatypes are not printed correctly in
dtype_print().

rb://204 Approved by Marko.

1. BUG#4869 - when innodb tablespace is configured too small,
              crash and corruption!

Detailed revision comments:

r6187 | jyang | 2009-11-18 05:27:30 +0200 (Wed, 18 Nov 2009) | 9 lines
branches/5.1: Fix bug #48469 "when innodb tablespace is
configured too small, crash and corruption!". Function
btr_create() did not check the return status of fseg_create(),
and continue the index creation even there is no sufficient
space.

rb://205 Approved by Marko

r6200 | vasil | 2009-11-19 12:14:23 +0200 (Thu, 19 Nov 2009) | 4 lines
branches/5.1:

White space fixup - indent under the opening (

r6203 | jyang | 2009-11-19 15:12:22 +0200 (Thu, 19 Nov 2009) | 8 lines
branches/5.1: Use btr_free_root() instead of fseg_free() for
the fix of bug #48469, because fseg_free() is not defined
in the zip branch. And we could save one mini-trasaction started
by fseg_free().

Approved by Marko.

1. BUG#3139 - Mysql crashes: "windows error 995" after several 
              selects on a large DB

Detailed revision comments:

r6154 | calvin | 2009-11-11 02:51:17 +0200 (Wed, 11 Nov 2009) | 17 lines
branches/5.1: fix bug#3139: Mysql crashes: 'windows error 995'
after several selects on a large DB

During stress environment, Windows AIO may fail with error code
ERROR_OPERATION_ABORTED. InnoDB does not handle the error, rather
crashes. The cause of the error is unknown, but likely due to
faulty hardware or driver.

This patch introduces a new error code OS_FILE_OPERATION_ABORTED,
which maps to Windows ERROR_OPERATION_ABORTED (995). When the error
is detected during AIO, the InnoDB will issue a synchronous retry
(read/write).

This patch has been extensively tested by MySQL support.

Approved by: Marko
rb://196

1. BUG#32430 - 'show innodb status' causes errors Invalid (old?) table
               or database name in logs

2. White space fixup

Detailed revision comments:

r6136 | marko | 2009-11-04 12:28:10 +0200 (Wed, 04 Nov 2009) | 15 lines
branches/5.1: Port r6134 from branches/zip:

  ------------------------------------------------------------------------
  r6134 | marko | 2009-11-04 07:57:29 +0000 (Wed, 04 Nov 2009) | 5 lines

  branches/zip: innobase_convert_identifier(): Convert table names with
  explain_filename() to address Bug #32430: 'show innodb status'
  causes errors Invalid (old?) table or database name in logs.

  rb://134 approved by Sunny Bains
  ------------------------------------------------------------------------

innobase_print_identifier(): Replace with innobase_convert_name().

innobase_convert_identifier(): New function, called by innobase_convert_name().
r6152 | vasil | 2009-11-10 15:30:20 +0200 (Tue, 10 Nov 2009) | 4 lines
branches/5.1:

White space fixup.

Fix for failure on windows PB2 because of the result content mismatch.
In windows additional information about TCP port was causing failures.
Added to regex.

      
The 'slave_patternload_file' is assigned to the real path of the load data file 
when initializing the object of Relay_log_info. But the path of the load data
file is not formatted to real path when executing event from relay log. So the 
error will be encountered if the path of the load data file is a symbolic link.

Actually the global 'opt_secure_file_priv' is not formatted to real path when 
loading data from file. So the same thing will happen too.

      
To fix these errors, the path of the load data file should be formatted to 
real path when executing event from relay log. And the 'opt_secure_file_priv' 
should be formatted to real path when loading data infile.


mysql-test/suite/rpl/r/rpl_loaddata_symlink.result:
  Test result for bug#43913.
mysql-test/suite/rpl/t/rpl_loaddata_symlink-master.sh:
  Added the test file to create a link from $MYSQLTEST_VARDIR/std_data 
  to $MYSQLTEST_VARDIR/std_data_master_link
mysql-test/suite/rpl/t/rpl_loaddata_symlink-slave.sh:
  Added the test file to create a link from $MYSQLTEST_VARDIR/std_data 
  to $MYSQLTEST_VARDIR/std_data_slave_link
mysql-test/suite/rpl/t/rpl_loaddata_symlink.test:
  Added the test file to verify if loading data infile will work fine 
  if the path of the load data file is a symbolic link.
sql/rpl_rli.cc:
  Added call 'my_realpath' function for avoiding sometimes the 'fn_format' 
  function can't format real path rightly.

dependent on the case mode