otherwise COM_CHANGE_USER is unprotected and can be used for both privilege escalation and buffer overrun

mysql-test/r/group_by.result:
  Auto merged
mysql-test/t/group_by.test:
  Auto merged
sql/item_cmpfunc.cc:
  Auto merged
sql/item_cmpfunc.h:
  Auto merged

into sinisa.nasamreza.org:/mnt/work/mysql

(Patch from 4.0.5)


mysql-test/r/group_by.result:
  Updated results
mysql-test/t/group_by.test:
  Test for bug
sql/item_cmpfunc.cc:
  Fixed bug in MAX() optimization when used with JOIN and ON expressions
sql/item_cmpfunc.h:
  Fixed bug in MAX() optimization when used with JOIN and ON expressions
sql/opt_sum.cc:
  Fixed bug in MAX() optimization when used with JOIN and ON expressions

into sinisa.nasamreza.org:/mnt/work/mysql

sql/mysqld.cc:
  Auto merged

into sinisa.nasamreza.org:/mnt/work/mysql

 - reverted some incompatible/non-portable modifications


support-files/mysql.server.sh:
   - reverted non-portable change ("echo -n" does not work on all platforms)
   - reverted incompatible change (better fix the docs than break existing
     installations)

     - fix setting of niceness level

support-files/mysql.server.sh
     - applied some fixes from 4.0 mysql.server script
     - fix my.cnf parsing


scripts/safe_mysqld.sh:
   - fix setting of niceness level, if one adds "renice -20 $$" to safe_mysqld
     as hinted in the manual (which could result in NOHUP_NICENESS having a
     value of "-15" and hence there would be one dash too much)
support-files/mysql.server.sh:
   - applied some fixes from 4.0 mysql.server script
   - fix to actually parse the documented section ([mysql.server] not
     [mysql_server]) in my.cnf on startup

into mysql.com:/space/my/mysql-3.23

sql/mysqld.cc:
  Auto merged

Fix for Mac OS X shutdown


mysql-test/mysql-test-run.sh:
  Log client error messages
mysql-test/r/null_key.result:
  Test for bug in <=> NULL
mysql-test/t/null_key.test:
  Test for bug in <=> NULL
sql/mysqld.cc:
  Fix for Mac OS X shutdown
sql/opt_range.cc:
  Fixed bug with indexed NULL column <=> NULL

into mysql.com:/space/my/mysql-3.23

mysql-test/r/func_test.result:
  Fixing the error in result

 - applied some changes from the 4.0 tree (enable multiple 
   --conf-environment options, add --with-debug, don't add "-max"
   prefix just because BDB is enabled)


Build-tools/Do-compile:
   - applied some changes from the 4.0 tree (enable multiple 
     --conf-environment options, add --with-debug, don't add "-max"
     prefix just because BDB is enabled)

into sinisa.nasamreza.org:/mnt/work/mysql

into mysql.com:/space/my/mysql-3.23

  Backport of bug fix in 4.0: do not x-lock rows under LOCK TABLES READ unless the table is a temp table


sql/ha_innobase.cc:
  Backport of bug fix in 4.0: do not x-lock rows under LOCK TABLES READ unless the table is a temp table

  Backport of bug fix in 4.0: do not x-lock rows under LOCK TABLES READ unless the table is a temp table


innobase/include/row0mysql.h:
  Backport of bug fix in 4.0: do not x-lock rows under LOCK TABLES READ unless the table is a temp table
innobase/row/row0mysql.c:
  Backport of bug fix in 4.0: do not x-lock rows under LOCK TABLES READ unless the table is a temp table

   (thanks to Gwenole Beauchesne <gbeauchesne@mandrakesoft.com>


bdb/dist/aclocal/mutex.m4:
   - applied patch for AMD x86-64

configure.in:
  Auto merged