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Merge mysql.com:/d2/hf/mrg/mysql-5.0-opt

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into  mysql.com:/d2/hf/mrg/mysql-5.1-opt


mysql-test/r/alter_table.result:
  Auto merged
mysql-test/r/distinct.result:
  Auto merged
mysql-test/r/heap.result:
  Auto merged
mysql-test/r/ps_2myisam.result:
  Auto merged
mysql-test/r/ps_3innodb.result:
  Auto merged
mysql-test/r/ps_4heap.result:
  Auto merged
mysql-test/r/ps_5merge.result:
  Auto merged
mysql-test/r/ps_7ndb.result:
  Auto merged
mysql-test/r/query_cache.result:
  Auto merged
BitKeeper/deleted/.del-CMakeLists.txt~1:
  Auto merged
BitKeeper/deleted/.del-ps_6bdb.result:
  Auto merged
mysql-test/t/alter_table.test:
  Auto merged
mysys/my_error.c:
  Auto merged
sql/field.cc:
  Auto merged
sql/field.h:
  Auto merged
sql/item.cc:
  Auto merged
sql/item.h:
  Auto merged
sql/item_cmpfunc.cc:
  Auto merged
sql/item_cmpfunc.h:
  Auto merged
sql/item_sum.cc:
  Auto merged
sql/key.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
sql/table.cc:
  Auto merged
tests/mysql_client_test.c:
  Auto merged
mysql-test/include/mix1.inc:
  merging
mysql-test/r/group_by.result:
  SCCS merged
mysql-test/r/innodb_mysql.result:
  merging
mysql-test/r/join.result:
  merging
mysql-test/r/subselect.result:
  merging
mysql-test/r/type_datetime.result:
  SCCS merged
mysql-test/r/windows.result:
  SCCS merged
mysql-test/t/group_by.test:
  SCCS merged
mysql-test/t/join.test:
  merging
mysql-test/t/subselect.test:
  merging
mysql-test/t/type_datetime.test:
  merging
mysql-test/t/windows.test:
  SCCS merged
sql/item_timefunc.cc:
  merging
sql/sql_base.cc:
  SCCS merged
storage/innobase/handler/ha_innodb.cc:
  merging
This commit is contained in:
unknown
2007-04-29 13:19:32 +05:00
parent 8f374c8f34 7eb77da33a
commit 2031f55751
33 changed files with 1074 additions and 146 deletions
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23
sql/sql_select.cc
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@ -5615,8 +5615,9 @@ static void add_not_null_conds(JOIN *join)
for (uint i=join->const_tables ; i < join->tables ; i++)
{
JOIN_TAB *tab=join->join_tab+i;
if ((tab->type == JT_REF || tab->type == JT_REF_OR_NULL) &&
!tab->table->maybe_null)
if ((tab->type == JT_REF || tab->type == JT_EQ_REF ||
tab->type == JT_REF_OR_NULL) &&
!tab->table->maybe_null)
{
for (uint keypart= 0; keypart < tab->ref.key_parts; keypart++)
{
@ -8857,17 +8858,13 @@ static bool
test_if_equality_guarantees_uniqueness(Item *l, Item *r)
{
return r->const_item() &&
/* elements must be of the same result type */
(r->result_type() == l->result_type() ||
/* or dates compared to longs */
(((l->type() == Item::FIELD_ITEM &&
((Item_field *)l)->field->can_be_compared_as_longlong()) ||
(l->type() == Item::FUNC_ITEM &&
((Item_func *)l)->result_as_longlong())) &&
r->result_type() == INT_RESULT))
/* and must have the same collation if compared as strings */
&& (l->result_type() != STRING_RESULT ||
l->collation.collation == r->collation.collation);
/* elements must be compared as dates */
(Arg_comparator::can_compare_as_dates(l, r, 0) ||
/* or of the same result type */
(r->result_type() == l->result_type() &&
/* and must have the same collation if compared as strings */
(l->result_type() != STRING_RESULT ||
l->collation.collation == r->collation.collation)));
}
/*