This patch corrects an error encountered in PB where Windows machines
are built in release mode have an extraneous parameter added in place
of the --console option. This is caused by the insert of '(null' 
instead of an empty string. In non-debug mode, the string is explicitly
set to an empty string.

Patch also fixes a result mismatch on Windows machines.

This patch adds the length of the buffer in the strncat operation
to prevent buffer overrun. 

      
Changed semantics of AUTHENTICATION_WIN_LOG environment variable recognized by client library to accept the following values which are levels of logging done during Windows authentication handshake:
      
  0 - no logging
  1 - log only error messages
  2 - additionally log warnings
  3 - additionally log info notes
  4 - also log debug messages
      
Setting it to 'on', 'yes' or 'true' will request log level 2 and setting it to 'debug' or 'dbug' will request log level 4.

This patch corrects an unsafe string concatenation for a Windows-specific
code segment. The symptoms were, under certain conditions like specifying
the location of my-print-defaults and the basedir, and run on a release
build, the client would exit without printing any messages. 

This patch corrects an unsafe string concatenation in the Windows
specific code for building the bootstrap command to enable or
disable the plugin. 

FROM OK PACKET
  
There's no reliable way (without knowing the protocol variants that each
plugin pair implements) to find out when does the authentication exchange
end.
The server is changed to send all the extra authentication packets that 
server plugins need to send prefixed with the \x1 command.

         to install or uninstall dynamically

This patch does the following:
- Step the plugin interface version.
- A flag field to the st_mysql_plugin structure that is
  used by plugins to provide basic information about the
  plugin.
- Two new flags to mark that a plugin cannot be loaded
  or unloaded dynamically (from a running server) but
  has to be installed or uninstalled offline.
- Two new error messages for reporting error when trying
  to install or uninstall a plugin marked as not instal-
  lable or not uninstallable.
- Update all plugins to initialize the new flags field
  to 0 explicitly.

This is a missing commit message for revision:

  mats.kindahl@oracle.com-20110815181211-4l94m162xs1mtrei

  Blind attempt to fix BUG 12881278 - MAIN.MYISAM TEST FAILS ON LINUX
  
  The printed text is truncated on char 63:
  
    "MySQL thread id 1236, OS thread handle 0x7ff187b96700, query id"
  
  still I do not understand how this truncation could have caused the
  main.myisam failure but anyway - the buffer needs to be increased.

  Also look into directories lib64 in addition to lib

Look for suite/thread_pool/plugin.defs

to mysql-5.5.16-release.

Original revision:
# revision-id: georgi.kodinov@oracle.com-20110812135004-3z3yjy7krf374clu
# parent: georgi.kodinov@oracle.com-20110812112536-dmh9i67tm8pqvz1a
# committer: Georgi Kodinov <Georgi.Kodinov@Oracle.com>
# branch nick: B12777649-5.5
# timestamp: Fri 2011-08-12 16:50:04 +0300
# message:
#   Bug #12777649: "OS THREAD ID" REMOVED 
#   
#   Pushed Calvin's patch.

from mysql-5.5 to mysql-5.5.16-release.

Original revision:
# revision-id: bjorn.munch@oracle.com-20110812104938-peswzao46f4lvm9p
# parent: dmitry.lenev@oracle.com-20110811155849-feyt3h7tj48padiu
# committer: Bjorn Munch <bjorn.munch@oracle.com>
# branch nick: main-55
# timestamp: Fri 2011-08-12 12:49:38 +0200
# message:
#   Small followup fix to WL 5710:
#     Test mysql_plugin failed if version string ended in -mN

to mysql-5.5.16-release.

Original revision:
# revision-id: dmitry.lenev@oracle.com-20110811155849-feyt3h7tj48padiu
# parent: tatjana.nuernberg@oracle.com-20110811120945-c6x9a5d2du8s9oj2
# committer: Dmitry Lenev <Dmitry.Lenev@oracle.com>
# branch nick: mysql-5.5-12828477
# timestamp: Thu 2011-08-11 19:58:49 +0400
# message:
#   Fix for bug #12828477 - "MDL SUBSYSTEM CREATES BIG OVERHEAD 
#   FOR CERTAIN QUERIES TO INFORMATION_SCHEMA".
#   
#   The problem was that metadata locking subsystem introduced
#   too much overhead for queries to I_S which were processed by
#   opening only .FRM or .TRG files and had to scanned a lot of
#   tables (e.g. SELECT COUNT(*) FROM I_S.TRIGGERS was affected). 
#   The same effect was not observed for similar queries which 
#   performed full-blown table open in order to fill I_S table.
#   
#   The problem stemmed from the fact that in case when I_S 
#   implementation opened only .FRM or .TRG file for each table 
#   processed it didn't release metadata lock it has acquired on 
#   the table after finishing its processing. As result, list
#   of acquired metadata locks were growing until the end of 
#   statement. Since acquisition of each new lock required 
#   search in the list of already acquired locks performance
#   degraded.
#   
#   The same effect is not observed when I_S implementation
#   performs full-blown table open for each table being
#   processed, as in the latter cases metadata lock on the
#   table is released right after table processing.
#   
#   This fix addressed the problem by ensuring that I_S 
#   implementation releases metadata lock after processing
#   the table in both cases of full-blown table open and in 
#   case when only .FRM or .TRG file is read.

Original revision id:
# revno: 3489 [merge]
# revision-id: tatjana.nuernberg@oracle.com-20110811120945-c6x9a5d2du8s9oj2
# parent: tatjana.nuernberg@oracle.com-20110811112736-so8r813hs8dmf7nr
# parent: chuck.bell@oracle.com-20110810183949-2s9uxcuoux2p668e
# committer: Tatjana Azundris Nuernberg <tatjana.nuernberg@oracle.com>
# branch nick: 55-9
# timestamp: Thu 2011-08-11 13:09:45 +0100
# message:
#   auto-merge

This merge revision also has a patch for Bug 12664445, which has been also
taken to 5.5.16.

  FRAMEWORK FOR SOME PLUGINS TO WORK
to the 5.5.16 release clone.  

  PAM AUTHENTICATION SETTINGS
to the release clone.

row_sel_field_store_in_mysql_format(): Do not pad the unused part of
the buffer reserved for a True VARCHAR column (introduced in 5.0.3).
Add Valgrind instrumentation ensuring that the unused part will be
flagged uninitialized.

row_sel_copy_cached_field_for_mysql(): New function: Copy a field
that is in the MySQL row format, not copying the unused tail of
VARCHAR columns.

row_sel_pop_cached_row_for_mysql(): Invoke
row_sel_copy_cached_field_for_mysql() for copying fields.
When the row is long, copy it field-by-field.

rb:715 approved by Inaam Rana

for compressed InnoDB tables

ha_innodb::info_low(): For calculating data_length or index_length,
use the compressed page size for compressed tables instead of UNIV_PAGE_SIZE.

rb:714 approved by Sunny Bains

BUG #11754979 - 46675: ON DUPLICATE KEY UPDATE AND UPDATECOUNT() POSSIBLY WRONG 

The mysql_affected_rows() client call returns 3 instead of 2 on
INSERT ... ON DUPLICATE KEY UPDATE query with a duplicated key value.

The fix for the old bug #29692 was incomplete: unnecessary double
increment of "touched" rows still happened.

This bugfix removes:
1) unneeded increment of "touched" rows and
2) useless double resetting of auto-increment value.

There is an optimization of DISTINCT in JOIN::optimize()
which depends on THD::used_tables value. Each SELECT statement
inside SP resets used_tables value(see mysql_select()) and it
leads to wrong result. The fix is to replace THD::used_tables
with LEX::used_tables.