diff options
Diffstat (limited to 'mysql-test/t/subselect4.test')
| -rw-r--r-- | mysql-test/t/subselect4.test | 333 |
1 files changed, 333 insertions, 0 deletions
diff --git a/mysql-test/t/subselect4.test b/mysql-test/t/subselect4.test new file mode 100644 index 00000000000..d71ce28d2b3 --- /dev/null +++ b/mysql-test/t/subselect4.test @@ -0,0 +1,333 @@ +# General purpose bug fix tests go here : subselect.test too large + + +--echo # +--echo # Bug #46791: Assertion failed:(table->key_read==0),function unknown +--echo # function,file sql_base.cc +--echo # + +CREATE TABLE t1 (a INT, b INT, KEY(a)); +INSERT INTO t1 VALUES (1,1),(2,2); +CREATE TABLE t2 LIKE t1; +INSERT INTO t2 VALUES (1,1),(2,2); +CREATE TABLE t3 LIKE t1; + +--echo # should have 1 impossible where and 2 dependent subqueries +EXPLAIN +SELECT 1 FROM t1 +WHERE NOT EXISTS (SELECT 1 FROM t2 WHERE 1 = (SELECT MIN(t2.b) FROM t3)) +ORDER BY count(*); + +--echo # should not crash the next statement +SELECT 1 FROM t1 +WHERE NOT EXISTS (SELECT 1 FROM t2 WHERE 1 = (SELECT MIN(t2.b) FROM t3)) +ORDER BY count(*); + +--echo # should not crash: the crash is caused by the previous statement +SELECT 1; + +DROP TABLE t1,t2,t3; + +--echo # +--echo # Bug #47106: Crash / segfault on adding EXPLAIN to a non-crashing +--echo # query +--echo # + +CREATE TABLE t1 ( + a INT, + b INT, + PRIMARY KEY (a), + KEY b (b) +); +INSERT INTO t1 VALUES (1, 1), (2, 1); + +CREATE TABLE t2 LIKE t1; +INSERT INTO t2 SELECT * FROM t1; + +CREATE TABLE t3 LIKE t1; +INSERT INTO t3 SELECT * FROM t1; + +--echo # Should not crash. +--echo # Should have 1 impossible where and 2 dependent subqs. +EXPLAIN +SELECT + (SELECT 1 FROM t1,t2 WHERE t2.b > t3.b) +FROM t3 WHERE 1 = 0 GROUP BY 1; + +--echo # should return 0 rows +SELECT + (SELECT 1 FROM t1,t2 WHERE t2.b > t3.b) +FROM t3 WHERE 1 = 0 GROUP BY 1; + +DROP TABLE t1,t2,t3; + +--echo End of 5.0 tests. + +--echo # +--echo # BUG#46743 "Azalea processing correlated, aggregate SELECT +--echo # subqueries incorrectly" +--echo # + +CREATE TABLE t1 (c int); +INSERT INTO t1 VALUES (NULL); +CREATE TABLE t2 (d int , KEY (d)); # index is needed for bug +INSERT INTO t2 VALUES (NULL),(NULL); # two rows needed for bug +# we see that subquery returns 0 rows +--echo 0 rows in subquery +SELECT 1 AS RESULT FROM t2,t1 WHERE d = c; +# so here it ends up as NULL +--echo base query +SELECT (SELECT 1 FROM t2 WHERE d = c) AS RESULT FROM t1 ; +EXPLAIN EXTENDED SELECT (SELECT 1 FROM t2 WHERE d = c) AS RESULT FROM t1 ; +--echo first equivalent variant +SELECT (SELECT 1 FROM t2 WHERE d = IFNULL(c,NULL)) AS RESULT FROM t1 GROUP BY c ; +EXPLAIN EXTENDED SELECT (SELECT 1 FROM t2 WHERE d = IFNULL(c,NULL)) AS RESULT FROM t1 GROUP BY c; +--echo second equivalent variant +# used to fail with 1242: Subquery returns more than 1 row +SELECT (SELECT 1 FROM t2 WHERE d = c) AS RESULT FROM t1 GROUP BY c ; +EXPLAIN EXTENDED SELECT (SELECT 1 FROM t2 WHERE d = c) AS RESULT FROM t1 GROUP BY c ; + +DROP TABLE t1,t2; + +--echo # +--echo # BUG#45928 "Differing query results depending on MRR and +--echo # engine_condition_pushdown settings" +--echo # + +CREATE TABLE `t1` ( + `pk` int(11) NOT NULL AUTO_INCREMENT, + `time_nokey` time NOT NULL, + `varchar_key` varchar(1) NOT NULL, + `varchar_nokey` varchar(1) NOT NULL, + PRIMARY KEY (`pk`), + KEY `varchar_key` (`varchar_key`) +) AUTO_INCREMENT=12 DEFAULT CHARSET=latin1; +INSERT INTO `t1` VALUES (10,'00:00:00','i','i'),(11,'00:00:00','',''); + +set @old_optimizer_switch = @@session.optimizer_switch, + @old_optimizer_use_mrr = @@session.optimizer_use_mrr, + @old_engine_condition_pushdown = @@session.engine_condition_pushdown; + +SET SESSION OPTIMIZER_SWITCH = 'materialization=off,semijoin=off,loosescan=off,firstmatch=off'; +SET SESSION optimizer_use_mrr = 'force'; +SET SESSION engine_condition_pushdown = 1; + + SELECT `time_nokey` G1 FROM t1 WHERE ( `varchar_nokey` , `varchar_key` ) IN ( +SELECT `varchar_nokey` , `varchar_nokey` ) AND `varchar_key` >= 'c' HAVING G1 ORDER +BY `pk` ; + +set @@session.optimizer_switch = @old_optimizer_switch, + @@session.optimizer_use_mrr = @old_optimizer_use_mrr, + @@session.engine_condition_pushdown = @old_engine_condition_pushdown; + +DROP TABLE t1; + +--echo # +--echo # BUG#45863 "Assertion failed: (fixed == 0), function fix_fields(), +--echo # file item.cc, line 4448" +--echo # +--disable_warnings +DROP TABLE IF EXISTS C, BB; +--enable_warnings + +CREATE TABLE C ( + varchar_nokey varchar(1) NOT NULL +); +INSERT INTO C VALUES + ('k'),('a'),(''),('u'),('e'),('v'),('i'), + ('t'),('u'),('f'),('u'),('m'),('j'),('f'), + ('v'),('j'),('g'),('e'),('h'),('z'); +CREATE TABLE BB ( + varchar_nokey varchar(1) NOT NULL +); +INSERT INTO BB VALUES ('i'),('t'); +-- error ER_OPERAND_COLUMNS +SELECT varchar_nokey FROM C +WHERE (varchar_nokey, OUTR) IN (SELECT varchar_nokey + FROM BB); +-- error ER_BAD_FIELD_ERROR +SELECT varchar_nokey FROM C +WHERE (varchar_nokey, OUTR) IN (SELECT varchar_nokey, varchar_nokey + FROM BB); +DROP TABLE C,BB; + +--echo # +--echo # During work with BUG#45863 I had problems with a query that was +--echo # optimized differently in regular and prepared mode. +--echo # Because there was a bug in one of the selected strategies, I became +--echo # aware of the problem. Adding an EXPLAIN query to catch this. + +--disable_warnings +DROP TABLE IF EXISTS t1, t2, t3; +--enable_warnings + +CREATE TABLE t1 + (EMPNUM CHAR(3) NOT NULL, + EMPNAME CHAR(20), + GRADE DECIMAL(4), + CITY CHAR(15)); + +CREATE TABLE t2 + (PNUM CHAR(3) NOT NULL, + PNAME CHAR(20), + PTYPE CHAR(6), + BUDGET DECIMAL(9), + CITY CHAR(15)); + +CREATE TABLE t3 + (EMPNUM CHAR(3) NOT NULL, + PNUM CHAR(3) NOT NULL, + HOURS DECIMAL(5)); + +INSERT INTO t1 VALUES ('E1','Alice',12,'Deale'); +INSERT INTO t1 VALUES ('E2','Betty',10,'Vienna'); +INSERT INTO t1 VALUES ('E3','Carmen',13,'Vienna'); +INSERT INTO t1 VALUES ('E4','Don',12,'Deale'); +INSERT INTO t1 VALUES ('E5','Ed',13,'Akron'); + +INSERT INTO t2 VALUES ('P1','MXSS','Design',10000,'Deale'); +INSERT INTO t2 VALUES ('P2','CALM','Code',30000,'Vienna'); +INSERT INTO t2 VALUES ('P3','SDP','Test',30000,'Tampa'); +INSERT INTO t2 VALUES ('P4','SDP','Design',20000,'Deale'); +INSERT INTO t2 VALUES ('P5','IRM','Test',10000,'Vienna'); +INSERT INTO t2 VALUES ('P6','PAYR','Design',50000,'Deale'); + +INSERT INTO t3 VALUES ('E1','P1',40); +INSERT INTO t3 VALUES ('E1','P2',20); +INSERT INTO t3 VALUES ('E1','P3',80); +INSERT INTO t3 VALUES ('E1','P4',20); +INSERT INTO t3 VALUES ('E1','P5',12); +INSERT INTO t3 VALUES ('E1','P6',12); +INSERT INTO t3 VALUES ('E2','P1',40); +INSERT INTO t3 VALUES ('E2','P2',80); +INSERT INTO t3 VALUES ('E3','P2',20); +INSERT INTO t3 VALUES ('E4','P2',20); +INSERT INTO t3 VALUES ('E4','P4',40); +INSERT INTO t3 VALUES ('E4','P5',80); + +SET @old_optimizer_switch = @@session.optimizer_switch; +SET @old_join_cache_level = @@session.join_cache_level; +SET SESSION optimizer_switch = 'firstmatch=on,loosescan=on,materialization=on,semijoin=on'; +SET SESSION join_cache_level = 1; + +CREATE UNIQUE INDEX t1_IDX ON t1(EMPNUM); + +EXPLAIN SELECT EMPNAME +FROM t1 +WHERE EMPNUM IN + (SELECT EMPNUM + FROM t3 + WHERE PNUM IN + (SELECT PNUM + FROM t2 + WHERE PTYPE = 'Design')); + +PREPARE stmt FROM "EXPLAIN SELECT EMPNAME +FROM t1 +WHERE EMPNUM IN + (SELECT EMPNUM + FROM t3 + WHERE PNUM IN + (SELECT PNUM + FROM t2 + WHERE PTYPE = 'Design'))"; +EXECUTE stmt; +EXECUTE stmt; +DEALLOCATE PREPARE stmt; + +DROP INDEX t1_IDX ON t1; +CREATE INDEX t1_IDX ON t1(EMPNUM); + +EXPLAIN SELECT EMPNAME +FROM t1 +WHERE EMPNUM IN + (SELECT EMPNUM + FROM t3 + WHERE PNUM IN + (SELECT PNUM + FROM t2 + WHERE PTYPE = 'Design')); + +PREPARE stmt FROM "EXPLAIN SELECT EMPNAME +FROM t1 +WHERE EMPNUM IN + (SELECT EMPNUM + FROM t3 + WHERE PNUM IN + (SELECT PNUM + FROM t2 + WHERE PTYPE = 'Design'))"; +EXECUTE stmt; +EXECUTE stmt; +DEALLOCATE PREPARE stmt; + +DROP INDEX t1_IDX ON t1; + +EXPLAIN SELECT EMPNAME +FROM t1 +WHERE EMPNUM IN + (SELECT EMPNUM + FROM t3 + WHERE PNUM IN + (SELECT PNUM + FROM t2 + WHERE PTYPE = 'Design')); + +PREPARE stmt FROM "EXPLAIN SELECT EMPNAME +FROM t1 +WHERE EMPNUM IN + (SELECT EMPNUM + FROM t3 + WHERE PNUM IN + (SELECT PNUM + FROM t2 + WHERE PTYPE = 'Design'))"; +EXECUTE stmt; +EXECUTE stmt; +DEALLOCATE PREPARE stmt; + +SET SESSION optimizer_switch = @old_optimizer_switch; +SET SESSION join_cache_level = @old_join_cache_level; + +DROP TABLE t1, t2, t3; + +--echo # +--echo # BUG#45221 Query SELECT pk FROM C WHERE pk IN (SELECT int_key) failing +--echo # + +CREATE TABLE t1 ( + i1_key INT, + i2 INT, + i3 INT, + KEY i1_index (i1_key) +); + +INSERT INTO t1 VALUES (9,1,2), (9,2,1); + +CREATE TABLE t2 ( + pk INT NOT NULL, + i1 INT, + PRIMARY KEY (pk) +); + +INSERT INTO t2 VALUES (9,1); + +--echo # Enable Index condition pushdown +--replace_column 1 # +SELECT @old_icp:=@@engine_condition_pushdown; +SET SESSION engine_condition_pushdown = 'ON'; + +--echo +SELECT pk +FROM t2 +WHERE + pk IN ( + SELECT i1_key + FROM t1 + WHERE t1.i2 < t1.i3 XOR t2.i1 > 1 + ORDER BY t1.i2 desc); + +--echo # Restore old value for Index condition pushdown +SET SESSION engine_condition_pushdown=@old_icp; + +DROP TABLE t1,t2; |