After discussion with Satya this bug does not exist
in trunk.

additional backport of of bug43138 fix


mysql-test/t/myisam-system.test:
  additional backport of of bug43138 fix
sql/sql_db.cc:
  additional backport of of bug43138 fix

1. Fixes BUG#44030 - Error: (1500) Couldn't read the MAX(ID) autoinc value 
                     from the index (PRIMARY)

2. Disables the innodb-autoinc test for innodb plugin temporarily.
   The testcase for this bug has different result file for InnoDB plugin.
   Should add the testcase to Innodb suite with a different result file.

Detailed revision comments:

r5243 | sunny | 2009-06-04 03:17:14 +0300 (Thu, 04 Jun 2009) | 14 lines
branches/5.1: When the InnoDB and MySQL data dictionaries go out of sync, before
the bug fix we would assert on missing autoinc columns. With this fix we allow
MySQL to open the table but set the next autoinc value for the column to the
MAX value. This effectively disables the next value generation. INSERTs will
fail with a generic AUTOINC failure. However, the user should be able to
read/dump the table, set the column values explicitly, use ALTER TABLE to
set the next autoinc value and/or sync the two data dictionaries to resume
normal operations.

Fix Bug#44030 Error: (1500) Couldn't read the MAX(ID) autoinc value from the
index (PRIMARY)

rb://118

r5252 | sunny | 2009-06-04 10:16:24 +0300 (Thu, 04 Jun 2009) | 2 lines
branches/5.1: The version of the result file checked in was broken in r5243.

r5259 | vasil | 2009-06-05 10:29:16 +0300 (Fri, 05 Jun 2009) | 7 lines
branches/5.1:

Remove the word "Error" from the printout because the mysqltest suite
interprets it as an error and thus the innodb-autoinc test fails.

Approved by:	Sunny (via IM)
r5466 | vasil | 2009-07-02 10:46:45 +0300 (Thu, 02 Jul 2009) | 6 lines
branches/5.1:

Adjust the failing innodb-autoinc test to conform to the latest behavior
of the MySQL code. The idea and the comment in innodb-autoinc.test come
from Sunny.

      
The test case rpl_do_grant fails sporadically on PB2 with "Access
denied for user 'create_rout_db'@'localhost' ...". Inspecting the
test case, one may find that if issues a GRANT on the master
connection and immediately after it creates two new connections
(one to the master and one to the slave) using the credentials
set with the GRANT.
      
Unfortunately, there is no synchronization between master and
slave after the grant and before the connections are
established. This can result in slave not having executed the
GRANT by the time the connection is attempted.
      
This patch fixes this by deploying a sync_slave_with_master
between the grant and the connections attempt.

      
The test case creates two temporary tables, then closes the
connection, waits for it to disconnect, then syncs the slave with
the master, checks for remaining opened temporary tables on
slave (which should be 0) and finally drops the used
database (mysqltest).
      
Unfortunately, sometimes, the test fails with one open table on
the slave. This seems to be caused by the fact that waiting for
the connection to be closed is not sufficient. The test needs to
wait for the DROP event to be logged and only then synchronize
the slave with the master and proceed with the check. This is
caused by the asynchronous nature of the disconnect wrt
binlogging of the DROP temporary table statement.
      
We fix this by deploying a call to wait_for_binlog_event.inc
on the test case, which makes execution to wait for the DROP
temp tables event before synchronizing master and slave.

Problem: LOGGER::general_log_write() relied on valid "thd" parameter passed
but had inconsistent "if (thd)" check.

Fix: as we always pass a valid "thd" parameter to the method, 
redundant check removed.


sql/log.cc:
  Fix for bug#47130: misplaced or redundant check for null pointer?
    - code clean-up, as we rely on the "thd" parameter in the
  LOGGER::general_log_write(), redundant "if (thd)" check removed, 
  added assert(thd) instead.

The problem is that argument buffer can be used as result buffer
and it leads to argument value change.
The fix is to use 'old buffer' as result buffer only
if first argument is not constant item.


mysql-test/r/func_str.result:
  test result
mysql-test/t/func_str.test:
  test case
sql/item_strfunc.cc:
  The problem is that argument buffer can be used as result buffer
  and it leads to argument value change.
  The fix is to use 'old buffer' as result buffer only
  if first argument is not constant item.

In RBR, There is an inconsistency between slaves and master.
When INSERT statement which includes an auto_increment field is executed,
Store engine of master will check the value of the auto_increment field. 
It will generate a sequence number and then replace the value, if its value is NULL or empty.
if the field's value is 0, the store engine will do like encountering the NULL values 
unless NO_AUTO_VALUE_ON_ZERO is set into SQL_MODE.
In contrast, if the field's value is 0, Store engine of slave always generates a new sequence number 
whether or not NO_AUTO_VALUE_ON_ZERO is set into SQL_MODE.

SQL MODE of slave sql thread is always consistency with master's.
Another variable is related to this bug.
If generateing a sequence number is decided by the values of
table->auto_increment_field_not_null and SQL_MODE(if includes MODE_NO_AUTO_VALUE_ON_ZERO)
The table->auto_increment_is_not_null is FALSE, which causes this bug to appear. ..

partial backport of bug43138 fix


mysql-test/r/warnings.result:
  test result
mysql-test/t/warnings.test:
  test case
sql/sql_class.cc:
  partial backport of bug43138 fix
sql/sql_class.h:
  partial backport of bug43138 fix
sql/sql_table.cc:
  partial backport of bug43138 fix

on Windows in dbug.c) -- part 2: a patch for the DBUG subsystem
to detect misuse of DBUG_ENTER / DBUG_RETURN macros.
5.1 version.

            can crash under load

Merge from 5.0, after backport from 5.1/5.4 to 5.0.
This makes the fixes for
Bug 44068 (RESTORE can disable the MyISAM Key Cache)
Bug 40944 (Backup: crash after myisampack)
available to 5.1.