diff options
author | Oleg Smirnov <olernov@gmail.com> | 2023-01-12 13:18:33 +0700 |
---|---|---|
committer | Oleg Smirnov <olernov@gmail.com> | 2023-01-20 13:47:36 +0700 |
commit | afb5deb9db44b52bd86512a8829a28ed52adcd0d (patch) | |
tree | 0cf8aef02b32b3ad7910f5c49cd50c480ee69a18 /mysql-test | |
parent | c256998b6e76ccb8f3237b13b8dcb7d60d12736d (diff) | |
download | mariadb-git-afb5deb9db44b52bd86512a8829a28ed52adcd0d.tar.gz |
MDEV-29294 Assertion `functype() == ((Item_cond *) new_item)->functype()' failed in Item_cond::remove_eq_conds on SELECT
Item_singlerow_subselect may be converted to Item_cond during
optimization. So there is a possibility of constructing nested
Item_cond_and or Item_cond_or which is not allowed (such
conditions must be flattened).
This commit checks if such kind of optimization has been applied
and flattens the condition if needed
Diffstat (limited to 'mysql-test')
-rw-r--r-- | mysql-test/main/select.result | 56 | ||||
-rw-r--r-- | mysql-test/main/select.test | 40 | ||||
-rw-r--r-- | mysql-test/main/select_jcl6.result | 56 | ||||
-rw-r--r-- | mysql-test/main/select_pkeycache.result | 56 |
4 files changed, 208 insertions, 0 deletions
diff --git a/mysql-test/main/select.result b/mysql-test/main/select.result index 1562144b164..fc3a29094ae 100644 --- a/mysql-test/main/select.result +++ b/mysql-test/main/select.result @@ -5639,4 +5639,60 @@ EXECUTE stmt; COUNT(DISTINCT a) 3 DROP TABLE t1; +# +# MDEV-29294: Assertion `functype() == ((Item_cond *) new_item)->functype()' +# failed in Item_cond::remove_eq_conds on SELECT +# +CREATE TABLE t1 (a INT); +INSERT INTO t1 VALUES (1),(2),(3); +# Test for nested OR conditions: +SELECT * FROM t1 WHERE a = 1 AND +(3 = 0 OR (SELECT a = 1 OR (SELECT 3 WHERE a = a) = 3)); +a +1 +EXPLAIN EXTENDED +SELECT * FROM t1 WHERE a = 1 AND +(3 = 0 OR (SELECT a = 1 OR (SELECT 3 WHERE a = a) = 3)); +id select_type table type possible_keys key key_len ref rows filtered Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using temporary +3 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL No tables used +Warnings: +Note 1276 Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1 +Note 1276 Field or reference 'test.t1.a' of SELECT #3 was resolved in SELECT #1 +Note 1276 Field or reference 'test.t1.a' of SELECT #3 was resolved in SELECT #1 +Note 1249 Select 2 was reduced during optimization +Note 1003 /* select#1 */ select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` = 1 and (1 or <expr_cache><`test`.`t1`.`a`>((/* select#3 */ select 3 from DUAL where `test`.`t1`.`a` = `test`.`t1`.`a`)) = 3) +PREPARE stmt FROM 'SELECT * FROM t1 WHERE a = 1 AND + (3 = 0 OR (SELECT a = 1 OR (SELECT 3 WHERE a = a) = 3))'; +EXECUTE stmt; +a +1 +EXECUTE stmt; +a +1 +CREATE VIEW v1 AS SELECT * FROM t1 WHERE a = 1 AND +(3 = 0 OR (SELECT a = 1 OR (SELECT 3 WHERE a = a) = 3)); +SELECT * FROM v1; +a +1 +# Test for nested AND conditions: +SELECT * FROM t1 WHERE a = 1 OR +(3 = 3 AND (SELECT a = 1 AND (SELECT 3 WHERE a = a) = 3)); +a +1 +PREPARE stmt FROM 'SELECT * FROM t1 WHERE a = 1 OR + (3 = 3 AND (SELECT a = 1 AND (SELECT 3 WHERE a = a) = 3))'; +EXECUTE stmt; +a +1 +EXECUTE stmt; +a +1 +CREATE VIEW v2 AS SELECT * FROM t1 WHERE a = 1 OR +(3 = 3 AND (SELECT a = 1 AND (SELECT 3 WHERE a = a) = 3)); +SELECT * FROM v2; +a +1 +DROP TABLE t1; +DROP VIEW v1, v2; End of 10.0 tests diff --git a/mysql-test/main/select.test b/mysql-test/main/select.test index 31487a6844e..ed8783d40f4 100644 --- a/mysql-test/main/select.test +++ b/mysql-test/main/select.test @@ -4742,4 +4742,44 @@ EXECUTE stmt; --enable_warnings DROP TABLE t1; +--echo # +--echo # MDEV-29294: Assertion `functype() == ((Item_cond *) new_item)->functype()' +--echo # failed in Item_cond::remove_eq_conds on SELECT +--echo # +CREATE TABLE t1 (a INT); +INSERT INTO t1 VALUES (1),(2),(3); + +--echo # Test for nested OR conditions: +SELECT * FROM t1 WHERE a = 1 AND + (3 = 0 OR (SELECT a = 1 OR (SELECT 3 WHERE a = a) = 3)); + +EXPLAIN EXTENDED +SELECT * FROM t1 WHERE a = 1 AND + (3 = 0 OR (SELECT a = 1 OR (SELECT 3 WHERE a = a) = 3)); + +PREPARE stmt FROM 'SELECT * FROM t1 WHERE a = 1 AND + (3 = 0 OR (SELECT a = 1 OR (SELECT 3 WHERE a = a) = 3))'; +EXECUTE stmt; +EXECUTE stmt; + +CREATE VIEW v1 AS SELECT * FROM t1 WHERE a = 1 AND + (3 = 0 OR (SELECT a = 1 OR (SELECT 3 WHERE a = a) = 3)); +SELECT * FROM v1; + +--echo # Test for nested AND conditions: +SELECT * FROM t1 WHERE a = 1 OR + (3 = 3 AND (SELECT a = 1 AND (SELECT 3 WHERE a = a) = 3)); + +PREPARE stmt FROM 'SELECT * FROM t1 WHERE a = 1 OR + (3 = 3 AND (SELECT a = 1 AND (SELECT 3 WHERE a = a) = 3))'; +EXECUTE stmt; +EXECUTE stmt; + +CREATE VIEW v2 AS SELECT * FROM t1 WHERE a = 1 OR + (3 = 3 AND (SELECT a = 1 AND (SELECT 3 WHERE a = a) = 3)); +SELECT * FROM v2; + +DROP TABLE t1; +DROP VIEW v1, v2; + --echo End of 10.0 tests diff --git a/mysql-test/main/select_jcl6.result b/mysql-test/main/select_jcl6.result index e144477b66e..e7c2e3e4807 100644 --- a/mysql-test/main/select_jcl6.result +++ b/mysql-test/main/select_jcl6.result @@ -5650,6 +5650,62 @@ EXECUTE stmt; COUNT(DISTINCT a) 3 DROP TABLE t1; +# +# MDEV-29294: Assertion `functype() == ((Item_cond *) new_item)->functype()' +# failed in Item_cond::remove_eq_conds on SELECT +# +CREATE TABLE t1 (a INT); +INSERT INTO t1 VALUES (1),(2),(3); +# Test for nested OR conditions: +SELECT * FROM t1 WHERE a = 1 AND +(3 = 0 OR (SELECT a = 1 OR (SELECT 3 WHERE a = a) = 3)); +a +1 +EXPLAIN EXTENDED +SELECT * FROM t1 WHERE a = 1 AND +(3 = 0 OR (SELECT a = 1 OR (SELECT 3 WHERE a = a) = 3)); +id select_type table type possible_keys key key_len ref rows filtered Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using temporary +3 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL No tables used +Warnings: +Note 1276 Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1 +Note 1276 Field or reference 'test.t1.a' of SELECT #3 was resolved in SELECT #1 +Note 1276 Field or reference 'test.t1.a' of SELECT #3 was resolved in SELECT #1 +Note 1249 Select 2 was reduced during optimization +Note 1003 /* select#1 */ select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` = 1 and (1 or <expr_cache><`test`.`t1`.`a`>((/* select#3 */ select 3 from DUAL where `test`.`t1`.`a` = `test`.`t1`.`a`)) = 3) +PREPARE stmt FROM 'SELECT * FROM t1 WHERE a = 1 AND + (3 = 0 OR (SELECT a = 1 OR (SELECT 3 WHERE a = a) = 3))'; +EXECUTE stmt; +a +1 +EXECUTE stmt; +a +1 +CREATE VIEW v1 AS SELECT * FROM t1 WHERE a = 1 AND +(3 = 0 OR (SELECT a = 1 OR (SELECT 3 WHERE a = a) = 3)); +SELECT * FROM v1; +a +1 +# Test for nested AND conditions: +SELECT * FROM t1 WHERE a = 1 OR +(3 = 3 AND (SELECT a = 1 AND (SELECT 3 WHERE a = a) = 3)); +a +1 +PREPARE stmt FROM 'SELECT * FROM t1 WHERE a = 1 OR + (3 = 3 AND (SELECT a = 1 AND (SELECT 3 WHERE a = a) = 3))'; +EXECUTE stmt; +a +1 +EXECUTE stmt; +a +1 +CREATE VIEW v2 AS SELECT * FROM t1 WHERE a = 1 OR +(3 = 3 AND (SELECT a = 1 AND (SELECT 3 WHERE a = a) = 3)); +SELECT * FROM v2; +a +1 +DROP TABLE t1; +DROP VIEW v1, v2; End of 10.0 tests set join_cache_level=default; set @@optimizer_switch=@save_optimizer_switch_jcl6; diff --git a/mysql-test/main/select_pkeycache.result b/mysql-test/main/select_pkeycache.result index 1562144b164..fc3a29094ae 100644 --- a/mysql-test/main/select_pkeycache.result +++ b/mysql-test/main/select_pkeycache.result @@ -5639,4 +5639,60 @@ EXECUTE stmt; COUNT(DISTINCT a) 3 DROP TABLE t1; +# +# MDEV-29294: Assertion `functype() == ((Item_cond *) new_item)->functype()' +# failed in Item_cond::remove_eq_conds on SELECT +# +CREATE TABLE t1 (a INT); +INSERT INTO t1 VALUES (1),(2),(3); +# Test for nested OR conditions: +SELECT * FROM t1 WHERE a = 1 AND +(3 = 0 OR (SELECT a = 1 OR (SELECT 3 WHERE a = a) = 3)); +a +1 +EXPLAIN EXTENDED +SELECT * FROM t1 WHERE a = 1 AND +(3 = 0 OR (SELECT a = 1 OR (SELECT 3 WHERE a = a) = 3)); +id select_type table type possible_keys key key_len ref rows filtered Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using temporary +3 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL No tables used +Warnings: +Note 1276 Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1 +Note 1276 Field or reference 'test.t1.a' of SELECT #3 was resolved in SELECT #1 +Note 1276 Field or reference 'test.t1.a' of SELECT #3 was resolved in SELECT #1 +Note 1249 Select 2 was reduced during optimization +Note 1003 /* select#1 */ select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` = 1 and (1 or <expr_cache><`test`.`t1`.`a`>((/* select#3 */ select 3 from DUAL where `test`.`t1`.`a` = `test`.`t1`.`a`)) = 3) +PREPARE stmt FROM 'SELECT * FROM t1 WHERE a = 1 AND + (3 = 0 OR (SELECT a = 1 OR (SELECT 3 WHERE a = a) = 3))'; +EXECUTE stmt; +a +1 +EXECUTE stmt; +a +1 +CREATE VIEW v1 AS SELECT * FROM t1 WHERE a = 1 AND +(3 = 0 OR (SELECT a = 1 OR (SELECT 3 WHERE a = a) = 3)); +SELECT * FROM v1; +a +1 +# Test for nested AND conditions: +SELECT * FROM t1 WHERE a = 1 OR +(3 = 3 AND (SELECT a = 1 AND (SELECT 3 WHERE a = a) = 3)); +a +1 +PREPARE stmt FROM 'SELECT * FROM t1 WHERE a = 1 OR + (3 = 3 AND (SELECT a = 1 AND (SELECT 3 WHERE a = a) = 3))'; +EXECUTE stmt; +a +1 +EXECUTE stmt; +a +1 +CREATE VIEW v2 AS SELECT * FROM t1 WHERE a = 1 OR +(3 = 3 AND (SELECT a = 1 AND (SELECT 3 WHERE a = a) = 3)); +SELECT * FROM v2; +a +1 +DROP TABLE t1; +DROP VIEW v1, v2; End of 10.0 tests |