Now thd->mem_root is a pointer to thd->main_mem_root and THR_MALLOC is a pointer to thd->mem_root.
This gives us the following benefits:
- Allow us to easily detect if arena has already been swapped before (this fixes a bug in setup_conds() where arena was swaped twice in some cases)
- Faster swaps of arenas (as we don't have to copy the whole MEM_ROOT)
- We don't anymore have to call my_pthread_setspecific_ptr(THR_MALLOC,...) to change where memory is alloced. Now it's enough to set thd->mem_root



client/mysqltest.c:
  Remove some not needed defines
  (Things like this should be done in config-win.h)
include/config-win.h:
  Added popen() and pclose() compatibility macros
mysql-test/t/rpl_failed_optimize-master.opt:
  Portability fix
sql/ha_berkeley.cc:
  New thd->memroot handling
sql/item_cmpfunc.cc:
  Simpler arena swapping code
sql/item_func.cc:
  Simpler arena swapping code
sql/item_subselect.cc:
  Simpler arena swapping code
  New thd->mem_root handling
sql/item_sum.cc:
  New thd->mem_root handling
sql/item_timefunc.cc:
  Fixed not-initalized usage errors found by valgrind
sql/log_event.cc:
  New thd->mem_root handling
sql/mysql_priv.h:
  New thd->mem_root handling
sql/mysqld.cc:
  New thd->mem_root handling
sql/opt_range.cc:
  New thd->mem_root handling
sql/repl_failsafe.cc:
  New thd->mem_root handling
sql/set_var.cc:
  New thd->mem_root handling
sql/sql_acl.cc:
  New thd->mem_root handling
sql/sql_base.cc:
  Simpler arena swapping code
  New thd->mem_root handling
sql/sql_class.cc:
  New thd->mem_root handling
sql/sql_class.h:
  Simpler arena swapping code
  New thd->mem_root handling
sql/sql_db.cc:
  New thd->mem_root handling
sql/sql_error.cc:
  New thd->mem_root handling
sql/sql_help.cc:
  New thd->mem_root handling
sql/sql_insert.cc:
  New thd->mem_root handling
sql/sql_parse.cc:
  New thd->mem_root handling
  Added some extra checking of return value of new
sql/sql_prepare.cc:
  New thd->mem_root handling
sql/sql_select.cc:
  New thd->mem_root handling
sql/sql_select.h:
  New thd->mem_root handling
sql/sql_union.cc:
  Simpler arena swapping code
sql/sql_yacc.yy:
  New thd->mem_root handling
sql/table.cc:
  New thd->mem_root handling
sql/thr_malloc.cc:
  New thd->mem_root handling
tests/client_test.c:
  Added drop table to some tests
  Changed some table names to 't1'

into mysql.com:/M41/mysql-4.1

  My previous change that "set @A=NULL" doesn't change charset
  fixed 'Bug #6321' as well. Prove with a new test that
  FIELD(<uservariable content NULL>, ...) now works fine too.


mysql-test/t/user_var.test:
  My previous change that "set @A=NULL" doesn't change charset
  fixed 'Bug #6321' as well. Prove with a new test that
  FIELD(<uservariable content NULL>, ...) now works fine too.
mysql-test/r/user_var.result:
  My previous change that "set @A=NULL" doesn't change charset
  fixed 'Bug #6321' as well. Prove with a new test that
  FIELD(<uservariable content NULL>, ...) now works fine too.

_all_ versions. It tries to remove "Docs/Images/Makefile*" as part of the actions to
correct bug number 6350. If the source tree does not contain a dummy file matching
that pattern, this "rm" will fail, and so "Bootstrap" will fail.
The "Makefile.am" introduced with this changeset is identical to the one that will
arrive here when "joerg:1.2057" is propagated from 4.0,
so this separate introduction here is just to allow "Bootstraps" in the meantime.

character set with NULL, @A should be latin2
after this query sequence:

   SET @A=_latin2'string';
   SET @A=NULL;

I.e. the second query should not change the charset
to the current default value, but should keep the
original value assigned during the first query.
In order to do it, we don't copy charset
from the argument if the argument is NULL
and the variable has previously been initialized.


mysql-test/r/ps_6bdb.result:
  t
mysql-test/r/ps_5merge.result:
  t
mysql-test/r/ps_3innodb.result:
  t
mysql-test/r/ps_7ndb.result:
  t
mysql-test/r/ps_4heap.result:
  t
mysql-test/r/ps_2myisam.result:
  t
sql/item_func.cc:
  t

into mysql.com:/usr/local/home/marty/MySQL/test/mysql-4.1

into rurik.mysql.com:/home/igor/mysql-4.1

  Bug #6351 make test failure "Unknown character set"
  UCS2 related tests were moved into ctype_ucs.


mysql-test/t/ps.test:
  Bug #6351 make test failure "Unknown character set"
  UCS2 related tests were moved into ctype_ucs.
  Bug #6351 make test failure "Unknown character set"
  UCS2 related tests were moved into ctype_ucs.
mysql-test/t/ctype_ucs.test:
  Bug #6351 make test failure "Unknown character set"
  UCS2 related tests were moved into ctype_ucs.
mysql-test/r/ctype_ucs.result:
  Bug #6351 make test failure "Unknown character set"
  UCS2 related tests were moved into ctype_ucs.
mysql-test/r/ps.result:
  Bug #6351 make test failure "Unknown character set"
  UCS2 related tests were moved into ctype_ucs.

  - 'mysqldump --help' comment that --xeh-blob
    doesn't work with --extended-inserts was removed.
    It does work now. Thanks to Lachlan
    who noticed this wrong help message.
  - Switched to use the recently introduced
    mysql_hex_string() instead of slow sprintf().
    Thanks to Sinisa for the idea.
  - 'mysqldump --hex-blob' dumps in HEX not only
    BLOBs but also BINARY(x) columns. 
    Thanks to Paul.


client/mysqldump.c:
  - comment that --xeh-blob doesn't work with --extended-inserts was removed. It does work now.
  - Switched to use recently introduced mysql_hex_string()
    instead of sprintf()
  - BINARY(x) are dumped in HEX too

  Minor clean-ups


libmysql/libmysql.c:
  Minor clean-ups
libmysql/libmysql.def:
  bk commit

into rurik.mysql.com:/home/igor/dev/mysql-4.1-0

  Added a case for bug #6365.
item_cmpfunc.cc:
  Fixed bug #6365 : Server crashed when list of values
  in IN predicate contains NULL while the tested field is
  of the character type and not of the default set;
  e.g. when f in 'f IN (NULL,'aa') belongs to binary
  character set, while the default character set is latin1.


sql/item_cmpfunc.cc:
  Fixed bug #6365 : Server crash when list of values
  in IN predicate contains NULL while the tested field is
  of the character type of not of the default set
  e.g. when f in 'f IN (NULL,'aa') belongs to binary
  character set, while the default character set is latin1.
mysql-test/t/func_in.test:
  Added a case for bug #6365.
mysql-test/r/func_in.result:
  Added a case for bug #6365.

  Missing initialized for "lengths" element.
  ,


client/mysqladmin.c:
  Missing initialized for "lengths" element.
  ,

(prepared staements)": adding the test case to close the bug
(the bug was fixed along with other conversion incompatibilities 
in 4.1.7)


tests/client_test.c:
  A test case for Bug#4172: "Floating point conversion loses precision 
  (prepared staements)"
  Fix memleak.

code check is wrong".


acinclude.m4:
  Fix for Bug#6408 "configure checking for custom zlib fails because
  code check is wrong".
  AC_TRY_LINK needs something it can put into main() as its second argument.
  Apparently everything worked before because gcc supports nested functions.

into mysql.com:/home/wax/mysql/mysql-4.1mysqltest

client/mysqltest.c:
  autocommit
mysql-test/Makefile.am:
  changed mysql_test_run to mysql_test_run_new

mysql-test/r/fulltext.result:
  Auto merged
mysql-test/t/fulltext.test:
  Auto merged
mysql-test/t/insert.test:
  Auto merged
mysql-test/t/type_float.test:
  Auto merged

into hundin.mysql.fi:/home/marko/j/mysql-4.1


innobase/row/row0mysql.c:
  Auto merged

into poseidon.ndb.mysql.com:/home/tomas/mysql-4.1

  changed to use new switch


mysql-test/ndb/ndbcluster.sh:
  updated start script for ndbcluster to make better cleanup
ndb/test/run-test/main.cpp:
  changed to use new switch

  write_row(): document the ALTER TABLE tweak better,
  and commit every n*10000 rows, not n*10000-1 rows.


sql/ha_innodb.cc:
  write_row(): document the ALTER TABLE tweak better,
  and commit every n*10000 rows, not n*10000-1 rows.

ndb/src/kernel/blocks/dblqh/DblqhMain.cpp:
  bug #6426 fix

into mysql.com:/space/pekka/ndb/version/my41

into poseidon.ndb.mysql.com:/home/tomas/mysql-4.1

  ugly fix for 'quadita2' ia64 icc -O1


ndb/src/kernel/blocks/dbacc/DbaccMain.cpp:
  ugly fix for 'quadita2' ia64 icc -O1

into mysql.com:/usr/local/home/marty/MySQL/test/mysql-4.1


sql/ha_ndbcluster.cc:
  Auto merged

into poseidon.ndb.mysql.com:/home/tomas/mysql-4.1

into gw.mysql.r18.ru:/usr/home/ram/work/4.1.b6331

  "SHOW CREATE TABLE" mysql-4.0 and mysql-3.23 
  compatibiliry mode change:
  Check that a binary collation adds 'binary'
  suffix into a char() column definition in
  mysql40 and mysql2323 modes. This allows
  not to lose the column's case sensitivity
  when loading the dump in pre-4.1 servers.


mysql-test/t/sql_mode.test:
  "SHOW CREATE TABLE" mysql-4.0 and mysql-3.23 
  compatibiliry mode change:
mysql-test/r/sql_mode.result:
  "SHOW CREATE TABLE" mysql-4.0 and mysql-3.23 
  compatibiliry mode change:
  Check that a binary collation adds 'binary'
  suffix into a char() column definition in
  mysql40 and mysql2323 modes. This allows
  not to lose the column's case sensitivity
  when loading the dump in pre-4.1 servers.
sql/field.cc:
  "SHOW CREATE TABLE" mysql-4.0 and mysql-3.23 
  compatibiliry mode change:
  Check that a binary collation adds 'binary'
  suffix into a char() column definition in
  mysql40 and mysql2323 modes. This allows
  not to lose the column's case sensitivity
  when loading the dump in pre-4.1 servers.

  Do not print to .err log about discarding ibuf entries in DISCARD TABLESPACE; removed compiler warning about unused variable


innobase/ibuf/ibuf0ibuf.c:
  Do not print to .err log about discarding ibuf entries in DISCARD TABLESPACE; removed compiler warning about unused variable

innobase/include/lock0lock.h:
  Added function lock_get_ix_table()
innobase/include/row0mysql.h:
  Added parameter "table" to row_lock_table_for_mysql()
innobase/lock/lock0lock.c:
  Added function lock_get_ix_table()
innobase/row/row0mysql.c:
  Added parameter "table" to row_lock_table_for_mysql()
sql/ha_innodb.cc:
  write_row(): commit every 10000 rows in ALTER TABLE
sql/ha_innodb.h:
  Added member variable num_write_row

ndb/src/ndbapi/ndberror.c:
  826 error text
mysql-test/r/ndb_blob.result:
  result displayed error
mysql-test/t/ndb_blob.test:
  result displayed error
ndb/src/ndbapi/NdbBlob.cpp:
  update head+inline earlier
ndb/src/ndbapi/NdbOperationExec.cpp:
  blob IgnoreError bug
ndb/test/ndbapi/testBlobs.cpp:
  tried to set non-nullable to null, causing a complex abort case
ndb/src/ndbapi/NdbConnection.cpp:
  prepared ops CAN be left in complex abort

into poseidon.ndb.mysql.com:/home/tomas/mysql-4.1

into mysql.com:/home/bk/b5551-4.1-v4

The idea of the fix is that the administrative statements 
OPTIMIZE TABLE, REPAIR TABLE and ANALYZE TABLE should not 
generate binlog errors if there is no errors on the master.


sql/sql_parse.cc:
  No binlog error generated
sql/sql_table.cc:
  Documentation
BitKeeper/etc/logging_ok:
  Logging to logging@openlogging.org accepted