Blocked evaluation of constant objects of the classes
Item_func_is_null and Item_is_not_null_test at the
prepare phase in the cases when the objects used subqueries. 


mysql-test/r/ps.result:
  Extended test case for bug #25027.
mysql-test/t/ps.test:
  Extended test case for bug #25027.
sql/sql_lex.cc:
  Returned back the assertion in st_select_lex_unit::set_limit,
  removed by the previous commit for this bug.

Removed an assertion that was not valid for the cases where the query
in a prepared statement contained a single-row non-correlated
subquery that was used as an argument of the IS NULL predicate.


mysql-test/r/ps.result:
  Added a test case for bug #25027.
mysql-test/t/ps.test:
  Added a test case for bug #25027.

into  olga.mysql.com:/home/igor/mysql-5.0-opt


sql/item_subselect.cc:
  Auto merged
mysql-test/r/subselect.result:
  Manual merge
mysql-test/t/subselect.test:
  Manual merge
sql/item_subselect.h:
  Manual merge

into  mysql.com:/home/gluh/MySQL/Merge/5.0-opt


sql/sql_class.h:
  Auto merged

into  mysql.com:/home/gluh/MySQL/Merge/5.0-opt

and no WHERE condition were applied for any subquery without tables.



mysql-test/r/subselect.result:
  Added a test case for bug #24670.
mysql-test/t/subselect.test:
  Added a test case for bug #24670.
sql/item_subselect.cc:
  Fixed bug #24670: optimizations that are legal only for subqueries without tables
  and no WHERE condition were applied for any subquery without tables.
  
  Removed an assertion that caused an abort for subqueries without tables and no 
  WHERE condition. 
  Blocked substitution of a single-row subquery without tables for the constant 
  row from its select list when the subquery contained a WHERE condition.
  This optimization is valid only for subquries without tables with no conditions.
  Any subquery without tables with WHERE clause returns NULL if the WHERE condition
  is FALSE. Erroneously it was always considered as non-nullable that could trigger 
  another optimization concerning IS NULL predicates which is applicable only for 
  non-nullable expressions and ultimately led to a wrong result returned by the outer
  query.
  Added a proper implementation of the virtual method may_be_null for class 
  subselect_single_select_engine.
sql/item_subselect.h:
  Fixed bug #24670: optimizations that are legal only for subqueries without tables
  and no WHERE condition were applied for any subquery without tables.
  Made method may_by_null for class subselect_engine vvirtual.

into  mysql.com:/home/gluh/MySQL/Merge/4.1-opt

mysql-test/r/gis.result:
  result fixed
mysql-test/t/gis.test:
  path to datafile fixed

mysql-test/r/gis.result:
  result fixed
sql/field.cc:
  Field_*::reset() now returns int
sql/sql_load.cc:
  merging fix

Remove DBUG_ENTER in my_end


client/mysqltest.c:
  Call 'mysql_server_end' as last function in 'free_used_memory'
  Don't use DBUG_VOID_RETURN after mysql_server_end in free_used_memory
  Only call mysql_server_end if mysql_server_init has been called

into  mysql.com:/home/hf/work/22372/my50-22372


mysql-test/r/gis.result:
  merging
mysql-test/t/gis.test:
  merging
sql/field.cc:
  merging
sql/field.h:
  merging
sql/sql_load.cc:
  merging

datafile added to be used in gis.test


mysql-test/std_data/bad_gis_data.dat:
  New BitKeeper file ``mysql-test/std_data/bad_gis_data.dat''

The problem is that the GEOMETRY NOT NULL can't automatically set
any value as a default one. We always tried to complete LOAD DATA
command even if there's not enough data in file. That doesn't work
for GEOMETRY NOT NULL. Now Field_*::reset() returns an error sign
and it's checked in mysql_load()


mysql-test/r/gis.result:
  test result
mysql-test/t/gis.test:
  testcase
sql/field.cc:
  reset() now returns error sign
sql/field.h:
  Field_*::reset() now returns error sign if the field can't be reset
sql/sql_load.cc:
  check if field can't be reset and return error if it's so

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

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

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


mysql-test/mysql-test-run.pl:
  Auto merged

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


mysql-test/mysql-test-run.pl:
  Auto merged

client/mysqltest.c:
  Exclude

into  rolltop.ignatz42.dyndns.org:/mnt/storeage/mysql-4.1-maint

into  rolltop.ignatz42.dyndns.org:/mnt/storeage/mysql-5.0-maint


sql/sql_class.cc:
  Auto merged

into  rolltop.ignatz42.dyndns.org:/mnt/storeage/bug20836/my50-bug20836


sql/sql_class.cc:
  manual merge

- Comment Cleanup.


sql/sql_class.cc:
  Removed misleading comment.

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

mysql-test/mysql-test-run.pl:
  delete $default_vardir if the 4.1 vardir trick is to be used to re-enable more than one test run in sequence

into  mysql.com:/windows/Linux_space/MySQL/mysql-5.0-ndb

into  kpdesk.mysql.com:/home/thek/dev/tmp/mysql-5.0-maint

disables binlog.


mysql-test/t/disabled.def:
  disabled test flush2.

into  rolltop.ignatz42.dyndns.org:/mnt/storeage/mysql-4.1-maint


sql/sql_class.h:
  Auto merged

into  rolltop.ignatz42.dyndns.org:/mnt/storeage/mysql-5.0-maint


sql/sql_class.cc:
  Auto merged
sql/sql_class.h:
  Auto merged

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


Makefile.am:
  Auto merged
client/mysqltest.c:
  Auto merged
myisam/mi_open.c:
  Auto merged
mysql-test/lib/mtr_process.pl:
  Auto merged
mysql-test/mysql-test-run.pl:
  Auto merged
sql/mysqld.cc:
  Auto merged

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


BitKeeper/etc/ignore:
  auto-union
Docs/Makefile.am:
  Auto merged
Makefile.am:
  Auto merged
client/mysql.cc:
  Auto merged
client/mysqltest.c:
  Auto merged
include/Makefile.am:
  Auto merged
myisam/myisampack.c:
  Auto merged
mysql-test/lib/mtr_io.pl:
  Auto merged
mysql-test/lib/mtr_process.pl:
  Auto merged
mysql-test/mysql-test-run.pl:
  Auto merged
mysql-test/r/view_grant.result:
  Auto merged
mysql-test/t/view_grant.test:
  Auto merged
sql/handler.cc:
  Auto merged
sql/item.cc:
  Auto merged
sql/item_func.cc:
  Auto merged
sql/item_func.h:
  Auto merged
sql/item_timefunc.cc:
  Auto merged
sql/mysql_priv.h:
  Auto merged
sql/mysqld.cc:
  Auto merged
sql/sp.cc:
  Auto merged
sql/sql_base.cc:
  Auto merged
sql-common/my_time.c:
  Auto merged
sql/sql_handler.cc:
  Auto merged
extra/yassl/taocrypt/include/algebra.hpp:
  Manual merge with import of upstream yaSSL

Close any statements that might be open before program exit
Close any statments that might be open when calling "disable_ps_protocol"


client/mysqltest.c:
  Close any statements that might be open before program exit
  Close any statments that might be open when calling "disable_ps_protocol"

mysql-test/lib/mtr_misc.pl:
  Append .nlm to the binary name on NetWare

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

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


Makefile.am:
  Auto merged
client/mysqltest.c:
  Auto merged
mysql-test/lib/mtr_process.pl:
  Auto merged
mysql-test/mysql-test-run.pl:
  Auto merged
sql/mysqld.cc:
  Auto merged

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

into  rolltop.ignatz42.dyndns.org:/mnt/storeage/mysql-5.0-maint


myisam/myisampack.c:
  Auto merged