Commit fd35e81b authored by andrey@lmy004's avatar andrey@lmy004

Merge ahristov@bk-internal.mysql.com:/home/bk/mysql-5.1-new

into lmy004.:/work/mysql-5.1-bug16415
parents 288fe2f1 ec4910c4
...@@ -1135,3 +1135,22 @@ id select_type table type possible_keys key key_len ref rows Extra ...@@ -1135,3 +1135,22 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ALL PRIMARY NULL NULL NULL 4 Using where 1 SIMPLE t2 ALL PRIMARY NULL NULL NULL 4 Using where
1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.a 1 1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.a 1
DROP TABLE t1,t2; DROP TABLE t1,t2;
CREATE TABLE t1 (id int(11) NOT NULL PRIMARY KEY, name varchar(20),
INDEX (name)) ENGINE=InnoDB;
CREATE TABLE t2 (id int(11) NOT NULL PRIMARY KEY, fkey int(11),
FOREIGN KEY (fkey) REFERENCES t2(id)) ENGINE=InnoDB;
INSERT INTO t1 VALUES (1,'A1'),(2,'A2'),(3,'B');
INSERT INTO t2 VALUES (1,1),(2,2),(3,2),(4,3),(5,3);
EXPLAIN
SELECT COUNT(*) FROM t2 LEFT JOIN t1 ON t2.fkey = t1.id
WHERE t1.name LIKE 'A%';
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index PRIMARY,name name 23 NULL 3 Using where; Using index
1 SIMPLE t2 ref fkey fkey 5 test.t1.id 1 Using where; Using index
EXPLAIN
SELECT COUNT(*) FROM t2 LEFT JOIN t1 ON t2.fkey = t1.id
WHERE t1.name LIKE 'A%' OR FALSE;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index PRIMARY,name name 23 NULL 3 Using where; Using index
1 SIMPLE t2 ref fkey fkey 5 test.t1.id 1 Using where; Using index
DROP TABLE t1,t2;
...@@ -759,3 +759,23 @@ EXPLAIN SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE t1.a > IF(t1.a = t2.b ...@@ -759,3 +759,23 @@ EXPLAIN SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE t1.a > IF(t1.a = t2.b
DROP TABLE t1,t2; DROP TABLE t1,t2;
#
# Test for bug #17164: ORed FALSE blocked conversion of outer join into join
#
CREATE TABLE t1 (id int(11) NOT NULL PRIMARY KEY, name varchar(20),
INDEX (name)) ENGINE=InnoDB;
CREATE TABLE t2 (id int(11) NOT NULL PRIMARY KEY, fkey int(11),
FOREIGN KEY (fkey) REFERENCES t2(id)) ENGINE=InnoDB;
INSERT INTO t1 VALUES (1,'A1'),(2,'A2'),(3,'B');
INSERT INTO t2 VALUES (1,1),(2,2),(3,2),(4,3),(5,3);
EXPLAIN
SELECT COUNT(*) FROM t2 LEFT JOIN t1 ON t2.fkey = t1.id
WHERE t1.name LIKE 'A%';
EXPLAIN
SELECT COUNT(*) FROM t2 LEFT JOIN t1 ON t2.fkey = t1.id
WHERE t1.name LIKE 'A%' OR FALSE;
DROP TABLE t1,t2;
...@@ -2563,10 +2563,13 @@ Item_cond::fix_fields(THD *thd, Item **ref) ...@@ -2563,10 +2563,13 @@ Item_cond::fix_fields(THD *thd, Item **ref)
(item= *li.ref())->check_cols(1)) (item= *li.ref())->check_cols(1))
return TRUE; /* purecov: inspected */ return TRUE; /* purecov: inspected */
used_tables_cache|= item->used_tables(); used_tables_cache|= item->used_tables();
if (!item->const_item())
{
tmp_table_map= item->not_null_tables(); tmp_table_map= item->not_null_tables();
not_null_tables_cache|= tmp_table_map; not_null_tables_cache|= tmp_table_map;
and_tables_cache&= tmp_table_map; and_tables_cache&= tmp_table_map;
const_item_cache&= item->const_item(); const_item_cache= FALSE;
}
with_sum_func= with_sum_func || item->with_sum_func; with_sum_func= with_sum_func || item->with_sum_func;
if (item->maybe_null) if (item->maybe_null)
maybe_null=1; maybe_null=1;
......
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