After merge fix. Renamed 'info' -> 'sort_param'.

into  chilla.local:/home/mydev/mysql-5.1-bug8283

After merge fix. MyISAM version 10.

into  chilla.local:/home/mydev/mysql-5.0-bug8283

into  chilla.local:/home/mydev/mysql-4.1-bug8283-one

OPTIMIZE TABLE with myisam_repair_threads > 1 performs a non-quick 
parallel repair. This means that it does not only rebuild all 
indexes, but also the data file.

Non-quick parallel repair works so that there is one thread per 
index. The first of the threads rebuilds also the new data file.

The problem was that all threads shared the read io cache on the
old data file. If there were holes (deleted records) in the table,
the first thread skipped them, writing only contiguous, non-deleted
records to the new data file. Then it built the new index so that
its entries pointed to the correct record positions. But the other
threads didn't know the new record positions, but put the positions
from the old data file into the index.

The new design is so that there is a shared io cache which is filled
by the first thread (the data file writer) with the new contiguous
records and read by the other threads. Now they know the new record
positions.

Another problem was that for the parallel repair of compressed
tables a common bit_buff and rec_buff was used. I changed it so
that thread specific buffers are used for parallel repair.

A similar problem existed for checksum calculation. I made this
multi-thread safe too.

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

into  may.pils.ru:/home/svoj/devel/bk/mysql-5.1-engines

into  mysql.com:/home/svoj/devel/mysql/BUG22937/mysql-5.1-engines

into  mysql.com:/home/svoj/devel/mysql/BUG22937/mysql-5.0-engines

into  mysql.com:/home/svoj/devel/mysql/BUG22937/mysql-4.1-engines

This is addition to fix for bug21617. Valgrind reports an error when
opening merge table that has underlying tables with less indexes than
in a merge table itself.

Copy at most min(file->keys, table->key_parts) elements from rec_per_key array.
This fixes problems when merge table and subtables have different number of keys.

into  mysql.com:/home/svoj/devel/mysql/BUG21381/mysql-5.1-engines

into  mysql.com:/home/svoj/devel/mysql/BUG21381/mysql-5.0-engines

into  mysql.com:/home/svoj/devel/mysql/BUG10974/mysql-5.1-engines

into  mysql.com:/home/svoj/devel/mysql/BUG10974/mysql-5.0-engines

into  mysql.com:/home/svoj/devel/mysql/BUG21381/mysql-5.1-engines

into  mysql.com:/home/svoj/devel/mysql/BUG21381/mysql-5.0-engines

into  mysql.com:/home/svoj/devel/mysql/BUG21381/mysql-4.1-engines

Though this is not storage engine specific problem, I was able to
repeat this problem with BDB and NDB engines only. That was the
reason to add a test case into ndb_update.test. As a result
different bad things could happen.

BDB has removed duplicate rows which is not expected.
NDB returns an error.

For multi table update notify storage engine about UPDATE IGNORE
as it is done in single table UPDATE.

Added license information display to output of plugins schema, and tagged all plugins with GPL flag. 

into  xiphis.org:/home/antony/work2/p2-bug22080.3

into  neptunus.(none):/home/msvensson/mysql/mysql-5.1-new-maint

into  neptunus.(none):/home/msvensson/mysql/mysql-5.1-new-maint

into  moonlight.intranet:/home/tomash/src/mysql_ab/mysql-5.1-real-bug21726

  After merge fix.
field.cc:
  After merge fix

Fixed a test case according to fix for bug10974.

into  neptunus.(none):/home/msvensson/mysql/mysql-5.1-new-maint

invocations of LAST_INSERT_ID.

Reding of LAST_INSERT_ID inside stored function wasn't noted by caller,
and no LAST_INSERT_ID_EVENT was issued for binary log.

The solution is to add THD::last_insert_id_used_bin_log, which is much
like THD::last_insert_id_used, but is reset only for upper-level
statements.  This new variable is used to issue LAST_INSERT_ID_EVENT.

into  moonlight.intranet:/home/tomash/src/mysql_ab/mysql-5.1-real-bug21726

into  neptunus.(none):/home/msvensson/mysql/mysql-5.1-new-maint