Fields of view represented by Item_direct_view_ref. When complex expression
such as if(sum()>...,...) is splited in simpler parts by refs was ignored.
Beside this direct ref doesn't use it's result_field and thus can't store
it's result in tmp table which is needed for sum() ... group.
All this results in reported bug.

Item::split_sum_func2() now converts Item_direct_view_ref to Item_ref to
make fields from view being storable in tmp table.

into  zim.(none):/home/brian/mysql/mysql-5.0

Small tweak for random read performance (we shouldn't always tell the OS that we will be doing a linear scan). 

into  mysql.com:/usr/home/bar/mysql-5.0

into  mysql.com:/usr/home/bar/mysql-4.1.b12611

into  mysql.com:/usr/home/bar/mysql-5.0

  use saved view db name in case of view

  Variable character_set_system is selectable now
  More accurate error message results during 
  update of character_set_system and some other read only variables

into  mysql.com:/usr/home/bar/mysql-5.0

into  neptunus.(none):/home/msvensson/mysql/mysql-5.0

into mysql.com:/home/psergey/mysql-5.0-bug12941

into  mysql.com:/usr/home/bar/mysql-4.1.b12829

created item into item->result_field, not *(item->ref)->result_field.

into  neptunus.(none):/home/msvensson/mysql/mysql-5.0

into  neptunus.(none):/home/msvensson/mysql/mysql-4.1

into  sanja.is.com.ua:/home/bell/mysql/bk/work-mrg-5.0

into mysql.com:/Users/eric/bktmp/mysql-5.0

into  neptunus.(none):/home/msvensson/mysql/bug12715/my50-bug12715

into  neptunus.(none):/home/msvensson/mysql/bug12715/my50-bug12715

into mysql.com:/Users/eric/bktmp/mysql-4.1

into  sanja.is.com.ua:/home/bell/mysql/bk/work-mrg-5.0

into mysql.com:/Users/eric/bktmp/mysql-5.0

into  sanja.is.com.ua:/home/bell/mysql/bk/work-mrg-5.0

into  mysql.com:/home/alik/Documents/AllProgs/MySQL/devel/5.0-bug12953

OPTIMIZE TABLE statement is forbidden from usage in stored procedures/functions.

NOTE: OPTIMIZE TABLE statement can be useful in stored procedures. The idea is
that the user/administrator can create a stored procedure for admin
tasks (optimizing, backing up, etc). This procedure can be scheduled to run
automatically (by mean of internal cron (WL#1034)). So, once we can make this
statement work, it is worth doing it.

into  ua141d10.elisa.omakaista.fi:/home/my/bk/mysql-5.0

insensitively with boolean options. Added a warning if given
value is invalid and skips the option handling in that case.

 - Workaround

into  neptunus.(none):/home/msvensson/mysql/mysql-5.0

into  sanja.is.com.ua:/home/bell/mysql/bk/work-4.1

 - Common error handling regardless of --ps-protocol or not.

  Argument of RAND function can be constant value only

  adding test case.
item_cmpfunc.cc:
  Bug#12611
  ESCAPE + LIKE do not work when the escape char is a multibyte one
  Additional fix for 8bit character sets:
  escape character must be converted into
  operation character set.

  after merge fix

  Bug 12611 : ESCAPE + LIKE do not work when the escape char is a multibyte one
  Forgot to commit this file in the previous changeset,
  together with other files.