to prepare for a tree parent alignment.
No code changes.

Conflicts:
  - client/mysqltest.cc
  - mysql-test/collections/default.experimental
  - mysql-test/suite/rpl/t/disabled.def
  - sql/mysqld.cc
  - sql/opt_range.cc
  - sql/sp.cc
  - sql/sql_acl.cc
  - sql/sql_partition.cc
  - sql/sql_table.cc

This is no tree that will progress through "beta" and "rc" to "GA",
rather it is a series of "milestones",
so the version is
                  5.5.0-m2

Add the test to disabled list and remove from the experimental list.

Added back n_frees, use 'clear' instead of 'free' since memory is
not freed here.

Before this patch, semisync assumed transactions running in parallel
can not be larger than max_connections, but this is not true when
the event scheduler is executing events, and cause semisync run out
of preallocated transaction nodes.

Fix the problem by allocating transaction nodes dynamically.

This patch also fixed a possible deadlock when running UNINSTALL
PLUGIN rpl_semi_sync_master and updating in parallel. Fixed by
releasing the internal Delegate lock before unlock the plugins.

These tests are fails due to result mismatch only in embedded mode.

Merging revisions 3221 to 3230 from mysql-5.1-bugteam

THese are revisions for inbuilt Innodb in 5.1.
From revno 3212 to 3220 in mysql-5.1-bugteam

      
Add the test to disabled list and remove from the experimental list.

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.