The table opening process now works the following way:
- Create common TABLE_SHARE object
- Read the .frm file and unpack it into the TABLE_SHARE object
- Create a TABLE object based on the information in the TABLE_SHARE
  object and open a handler to the table object

Other noteworthy changes:
- In TABLE_SHARE the most common strings are now LEX_STRING's
- Better error message when table is not found
- Variable table_cache is now renamed 'table_open_cache'
- New variable 'table_definition_cache' that is the number of table defintions that will be cached
- strxnmov() calls are now fixed to avoid overflows
- strxnmov() will now always add one end \0 to result
- engine objects are now created with a TABLE_SHARE object instead of a TABLE object.
- After creating a field object one must call field->init(table) before using it

- For a busy system this change will give you:
 - Less memory usage for table object
 - Faster opening of tables (if it's has been in use or is in table definition cache)
 - Allow you to cache many table definitions objects
 - Faster drop of table

into  mysql.com:/home/eric/fed-txn-mysql-5.1-new

into  mysql.com:/home/eric/fed-txn-mysql-5.1-new

Fix a possible problem on RPM un-install. bug#15145

into  krsna.patg.net:/home/patg/mysql-build/mysql-5.1-new

Post-review fixes to original changeset http://lists.mysql.com/internals/32422

into  mysql.com:/opt/local/work/mysql-5.1-new

into  mysql.com:/opt/local/work/mysql-5.1-new

COUNT(*) is 0" (the test case has been pushed already)

ps_6bdb (this one fails circa once over 4 runs). After the merge: the same PLUS mysql_client_test&sp (due to problem in fix of BUG#14845 which has also
been noticed in 5.0 too and Konstantin is looking at it) PLUS mysqlcheck (just consequence of mysql_client_test).
And a replication bugfix (thd->spcont must be taken into account when calling tables_ok(), as in 5.0,
and so some brackets were missing which changed one test).
Pekka will look at the NDB code where I just used "ul": ndb_charset test, and storage/ndb/src/kernel/vm/SimulatedBlock.cpp
and storage/ndb/src/kernel/blocks/dbtup/DbtupRoutines.cpp (SimulatedBlock.hpp automerged);
please also check storage/ndb/src/ndbapi/NdbRecAttr.cpp. Petr please check ha_tina.cc.

into  mysql.com:/home/mysql_src/mysql-5.1-merge-of-5.0

into  mysql.com:/home/mysql_src/mysql-5.1-merge-of-5.0
(2nd try; Pekka kindly accepted to fix storage/ndb/src/kernel/blocks/dbtup/DbtupRoutines.cpp
and storage/ndb/src/kernel/vm/SimulatedBlock.cpp after I push).

Patch that fixes crashing when partition uses blackole for 
underlying tables.

password": additional fix, also make sure that a syntax error is 
returned for set names="foo" when there is no such variable or no
stored procedure.

a UNION in which case returns BLOB". The bug is not present anymore.

into moonbone.local:/work/13622-bug-5.0-mysql

into  mysql.com:/home/mysql_src/mysql-5.1-merge-of-5.0 (not all files are good,
I'll fix; I'll ask some devs to check their part)

when COUNT(*) is 0". The bug itself cannot be repeated.

into moonbone.local:/work/13622-bug-5.0-mysql

into  mysql.com:/home/jimw/my/mysql-5.0-clean

Enabled view tests that didn't work before.

Note: This change was reviewed by Brian before the commit.

into  mysql.com:/home/jimw/my/mysql-5.0-clean

into  mysql.com:/home/jimw/my/mysql-4.1-clean

into  mysql.com:/home/jimw/my/mysql-4.1-clean

into  mysql.com:/home/jimw/my/mysql-4.1-clean

into  mysql.com:/opt/local/work/mysql-5.0-13524

into  mysql.com:/home/mysql_src/mysql-5.1

The code was reading a HASH or DYNAMIC_ARRAY which may be uninited (difference from 5.0
is that those vars were always zeroed in 5.0 because were static globals, while they are new'd in 5.1).

  BUG#12701: SHOW VARIABLES does not show correct size of buffer pool.
ha_innodb.cc:
  BUG#12701: SHOW VARIABLES does not show correct size of buffer pool

into lmy004.:/work/mysql-5.1-bdb_region