- open and create derived tables
- detect which tables should be locked for write
- lock and fill derived tables
some unitialized variables fixed

into serg.mylan:/usr/home/serg/Abk/mysql-5.0

into serg.mylan:/usr/home/serg/Abk/mysql-5.0

two more round() modes - CEILING and FLOOR

into mysql.com:/home/my/mysql-5.0

  - No RESTICT|CASCADE in DROP SP (since it's not implemented)
  - Added optional "noise" to FETCH: [[NEXT] FROM]
  - At least one statement required in all block constructs except BEGIN-END
    (where zero is allowed)

FOUND is not a reserved keyword anymore
Added Item_field::set_no_const_sub() to be able to mark fields that can't be substituted
Added 'simple_select' method to be able to quickly determinate if a select_result is a normal SELECT
Note that the 5.0 tree is not yet up to date: Sanja will have to fix multi-update-locks for this merge to be complete

into serg.mylan:/usr/home/serg/Abk/mysql-5.0

into gluh.mysql.r18.ru:/home/gluh/MySQL/mysql-5.0

tests added

more tests

into serg.mylan:/usr/home/serg/Abk/mysql-5.0

into mysql.com:/home/timka/mysql/src/5.0-dbg

rounding bugs fixed

Fix for BUG#6303 + fix for discovered bug with sub-queries when analyzin queries for MIN/MAX optimization (WL#1724).

  string2decimal_fixed
  decimal_round(from, to)
  decimal_make_zero
  decimal_string_size
  decimal_neg

into serg.mylan:/usr/home/serg/Abk/mysql-5.0

into the column character set on INSERT/UPDATE.

into mysql.com:/M41/mysql-4.1

args[0] is now used instead.