the wrong buffer

handler::index_next_same() did not take into account that the
internally called function key_cmp_if_same() uses the fixed
buffer table->record[0] for key comparison instead of the
buffer provided by the caller of handler::index_next_same().

Added code to temporarily redirect table->record[0] and the fields
used for the key to the record buffer provided by the caller of
handler::index_next_same().

The test case is in partition.test already.

into  anubis.xiphis.org:/usr/home/antony/work/p1-bug31473.1-backport-5.1

into  mysql.com:/home/svoj/devel/mysql/BUG31159/mysql-5.1-engines

into  mysql.com:/home/svoj/devel/mysql/BUG31159/mysql-5.0-engines

into  mysql.com:/home/svoj/devel/mysql/BUG31159/mysql-4.1-engines

ucs2 doesn't provide required by fulltext ctype array. Crash
happens because fulltext attempts to use unitialized ctype
array.

Fixed by converting ucs2 fields to compatible utf8 analogue.

into  mattiasj-laptop.(none):/home/mattiasj/clones/mysql-5.1-bug30878

into  mattiasj-laptop.(none):/home/mattiasj/clones/mysql-5.1-bug30878

  causes the Server to crash.

Accessing partitioned table with an apostrophe in partition options
like DATA DIRECTORY, INDEX DIRECTORY or COMMENT causes server crash.

Partition options were saved in .frm file without escaping.
When accessing such table it is not possible to properly restore
partition information.
Crashed because there was no check for partition info parser failure.

Fixed by escaping quoted text in the partition info when writing it to
the frm-file and added a check that it was able to parse the partition
info before using it 

NOTE: If the comment is written by an earlier version of the server,
the corrupted frm-file is not fixed, but left corrupted, you have to
manually drop the table and recreate it.

into  anubis.xiphis.org:/usr/home/antony/work/mysql-5.1-engines.merge

into  anubis.xiphis.org:/usr/home/antony/work/mysql-5.0-engines.merge

into  anubis.xiphis.org:/usr/home/antony/work/mysql-5.1-engines.merge

into  anubis.xiphis.org:/usr/home/antony/work/mysql-5.0-engines.merge

into  anubis.xiphis.org:/usr/home/antony/work/mysql-4.1-engines.merge

into  lambda.hsd1.co.comcast.net.:/home/malff/TREE/mysql-5.1-runtime

into  lambda.hsd1.co.comcast.net.:/home/malff/TREE/mysql-5.1-rt-merge

into  lambda.hsd1.co.comcast.net.:/home/malff/TREE/mysql-5.1-rt-merge

into  lambda.hsd1.co.comcast.net.:/home/malff/TREE/mysql-5.0-rt-merge

into  pcg5ppc.xiphis.org:/private/Network/Servers/anubis.xiphis.org/home/antony/work/p1-bug31473.1-merge-5.1-engines

  "CSV does not work with NULL value in datetime fields"
  Attempting to insert a row with a NULL value for a DATETIME field
  results in a CSV file which the storage engine cannot read.
  Don't blindly assume that "0" is acceptable for all field types,
  Since CSV does not support NULL, we find out from the field the
  default non-null value.
  Do not permit the creation of a table with a nullable columns.

into  moksha.com.br:/Users/davi/mysql/mysql-5.1-runtime

into  moksha.com.br:/Users/davi/mysql/mysql-5.1-runtime

The general log write function (general_log_print) uses printf style
arguments which need to be pre-processed, meaning that the all arguments
are copied to a single buffer and the problem is that the buffer size is
constant (1022 characters) but queries can be much larger then this.

The solution is to introduce a new log write function that accepts a
buffer and it's length as arguments. The function is to be used when
a formatted output is not required, which is the case for almost all
query write-to-log calls.

This is a incompatible change with respect to the log format of prepared
statements.

The server crashed when a thread was killed while locking the
general_log table at statement begin.

The general_log table is handled like a performance schema table.
The state of open tables is saved and cleared so that this table
seems to be the only open one. Then this table is opened and locked.
After writing, the table is closed and the open table state is
restored. Before restoring, however, it is asserted that there is
no current table open.

After locking the table, mysql_lock_tables() checks if the thread
was killed in between. If so, it unlocks the table and returns an
error. open_ltable() just returns with the error and leaves closing
of the table to close_thread_tables(), which is called at
statement end.

open_performance_schema_table() did not take this into account.
It assumed that a failed open_ltable() would not leave an open
table behind.

Fixed by closing thread tables after open_ltable() and before
restore_backup_open_tables_state() if the thread was killed.

No test case. It requires correctly timed parallel execution.
Since this bug was detected by the test suite, it seems
dispensable to add another test.

into  damien-katzs-computer.local:/Users/dkatz/mysql-5.1-runtime

    
Previously, UDF *_init functions were passed constant strings with erroneous lengths. The length came from the containing variable's size, not the length of the value itself.
    
Now the *_init functions get the constant as a null terminated string with the correct length supplied too.

into  moksha.com.br:/Users/davi/mysql/mysql-5.1-runtime

Post merge fixes: close any open statement before
the change user command and fix test case output.

  table to partitioned

Problem:
Crashed because usage of an uninitialised mutex when auto_incrementing
  a partitioned temporary table

Fix:
Only locking (using the mutex) if not temporary table.

into  ramayana.hindu.god:/home/tsmith/m/bk/maint/51

in middle of block)

into  moksha.com.br:/Users/davi/mysql/mysql-5.1-runtime

The problem was that the RETURNS column in the mysql.proc was of
CHAR(64). That was not enough for storing long-named datatypes.

The fix is to change CHAR(64) to LONGBLOB, and to throw warnings
at the time a stored routine is created if some data is truncated
during writing into mysql.proc.

into  polly.(none):/home/kaa/src/maint/mysql-5.1-maint

into  polly.(none):/home/kaa/src/maint/mysql-5.0-maint