on decimal column

The problem was that there was no check to disallow DECIMAL
columns in the code (it was accepted as if it was INTEGER).

Solution was to correctly disallow DECIMAL columns in
COLUMNS partitioning. As documented.

Conflicts:
  - sql/sql_base.cc

Conflicts:
  - support-files/mysql.spec.sh
  - configure.in

Now that Oracle has legally acquired Sun, change the copyright owner
and the vendor.

Conflicts:
  - sql/item.cc

Conflicts:
  - scripts/mysqld_multi.sh
  - sql/item_timefunc.cc

Conflicts:
  - sql/share/Makefile.am

as provided by Trudy Pelzer.

suffer. The problem was that when custom C flags were defined with in environment 
variable CFLAGS, WITH_DEBUG did not have any effect. Also, switch from 
WITH_DEBUG=ON to WITH_DEBUG=OFF   was not handled correctly .Expected is switch 
to with RelwithDebInfo or when custom compiler flags  are defined, to None.

Fixed the missing initialization of locker_lost.

This fix is not strictly necessary, but is desirable to re-align the code
from 5.5 and 6.0, and reduce the spurious code differences.

This will facilitate maintenance and help to apply patches cleanly, for merges.

Followup: Changes in sys_vars test suite

  mysql-test/suite/sys_vars/r/optimizer_search_depth_basic.result
    Added warnings.

into mysql-next-4284 tree.

into mysql-next-4284.

restoring the maximum of slave_net_timeout as defined
#define LONG_TIMEOUT ((ulong) 3600L*24L*365L)

      
Add deprecation warning when variable optimizer_search_depth is given
the value 63.
      
  mysql-test/r/greedy_optimizer.result
    Updated with warning text.
  mysql-test/r/mysqld--help-notwin.result
    Updated with warning from mysqld --help --verbose.
  mysql-test/r/mysqld--help-win.result
    Updated with warning from mysqld --help --verbose.
  sql/sys_vars.cc
    Added an update check function to the constructor invocation for
    the optimizer_search_depth variable. The function emits a
    warning message for the value 63.

into mysql-next-4284 tree.

Fixed failed assert on 64 bit platforms, introduced by the previous fix.

mysqld: sys_vars.h:125: Assertion `size == sizeof(T)' failed.