diff options
Diffstat (limited to 'mysql-test/main/group_min_max_innodb.result')
| -rw-r--r-- | mysql-test/main/group_min_max_innodb.result | 335 |
1 files changed, 335 insertions, 0 deletions
diff --git a/mysql-test/main/group_min_max_innodb.result b/mysql-test/main/group_min_max_innodb.result new file mode 100644 index 00000000..fed3d30b --- /dev/null +++ b/mysql-test/main/group_min_max_innodb.result @@ -0,0 +1,335 @@ +set @innodb_stats_persistent_save= @@innodb_stats_persistent; +set @innodb_stats_persistent_sample_pages_save= +@@innodb_stats_persistent_sample_pages; +set global innodb_stats_persistent= 1; +set global innodb_stats_persistent_sample_pages=100; +drop view if exists v1; +drop table if exists t1,t4; +create table t4 ( +pk_col int auto_increment primary key, a1 char(64), a2 char(64), b char(16), c char(16) not null, d char(16), dummy char(64) default ' ' +) engine=innodb; +insert into t4 (a1, a2, b, c, d) values +('a','a','a','a111','xy1'),('a','a','a','b111','xy2'),('a','a','a','c111','xy3'),('a','a','a','d111','xy4'), +('a','a','b','e112','xy1'),('a','a','b','f112','xy2'),('a','a','b','g112','xy3'),('a','a','b','h112','xy4'), +('a','b','a','i121','xy1'),('a','b','a','j121','xy2'),('a','b','a','k121','xy3'),('a','b','a','l121','xy4'), +('a','b','b','m122','xy1'),('a','b','b','n122','xy2'),('a','b','b','o122','xy3'),('a','b','b','p122','xy4'), +('b','a','a','a211','xy1'),('b','a','a','b211','xy2'),('b','a','a','c211','xy3'),('b','a','a','d211','xy4'), +('b','a','b','e212','xy1'),('b','a','b','f212','xy2'),('b','a','b','g212','xy3'),('b','a','b','h212','xy4'), +('b','b','a','i221','xy1'),('b','b','a','j221','xy2'),('b','b','a','k221','xy3'),('b','b','a','l221','xy4'), +('b','b','b','m222','xy1'),('b','b','b','n222','xy2'),('b','b','b','o222','xy3'),('b','b','b','p222','xy4'), +('c','a','a','a311','xy1'),('c','a','a','b311','xy2'),('c','a','a','c311','xy3'),('c','a','a','d311','xy4'), +('c','a','b','e312','xy1'),('c','a','b','f312','xy2'),('c','a','b','g312','xy3'),('c','a','b','h312','xy4'), +('c','b','a','i321','xy1'),('c','b','a','j321','xy2'),('c','b','a','k321','xy3'),('c','b','a','l321','xy4'), +('c','b','b','m322','xy1'),('c','b','b','n322','xy2'),('c','b','b','o322','xy3'),('c','b','b','p322','xy4'), +('d','a','a','a411','xy1'),('d','a','a','b411','xy2'),('d','a','a','c411','xy3'),('d','a','a','d411','xy4'), +('d','a','b','e412','xy1'),('d','a','b','f412','xy2'),('d','a','b','g412','xy3'),('d','a','b','h412','xy4'), +('d','b','a','i421','xy1'),('d','b','a','j421','xy2'),('d','b','a','k421','xy3'),('d','b','a','l421','xy4'), +('d','b','b','m422','xy1'),('d','b','b','n422','xy2'),('d','b','b','o422','xy3'),('d','b','b','p422','xy4'), +('a','a','a','a111','xy1'),('a','a','a','b111','xy2'),('a','a','a','c111','xy3'),('a','a','a','d111','xy4'), +('a','a','b','e112','xy1'),('a','a','b','f112','xy2'),('a','a','b','g112','xy3'),('a','a','b','h112','xy4'), +('a','b','a','i121','xy1'),('a','b','a','j121','xy2'),('a','b','a','k121','xy3'),('a','b','a','l121','xy4'), +('a','b','b','m122','xy1'),('a','b','b','n122','xy2'),('a','b','b','o122','xy3'),('a','b','b','p122','xy4'), +('b','a','a','a211','xy1'),('b','a','a','b211','xy2'),('b','a','a','c211','xy3'),('b','a','a','d211','xy4'), +('b','a','b','e212','xy1'),('b','a','b','f212','xy2'),('b','a','b','g212','xy3'),('b','a','b','h212','xy4'), +('b','b','a','i221','xy1'),('b','b','a','j221','xy2'),('b','b','a','k221','xy3'),('b','b','a','l221','xy4'), +('b','b','b','m222','xy1'),('b','b','b','n222','xy2'),('b','b','b','o222','xy3'),('b','b','b','p222','xy4'), +('c','a','a','a311','xy1'),('c','a','a','b311','xy2'),('c','a','a','c311','xy3'),('c','a','a','d311','xy4'), +('c','a','b','e312','xy1'),('c','a','b','f312','xy2'),('c','a','b','g312','xy3'),('c','a','b','h312','xy4'), +('c','b','a','i321','xy1'),('c','b','a','j321','xy2'),('c','b','a','k321','xy3'),('c','b','a','l321','xy4'), +('c','b','b','m322','xy1'),('c','b','b','n322','xy2'),('c','b','b','o322','xy3'),('c','b','b','p322','xy4'), +('d','a','a','a411','xy1'),('d','a','a','b411','xy2'),('d','a','a','c411','xy3'),('d','a','a','d411','xy4'), +('d','a','b','e412','xy1'),('d','a','b','f412','xy2'),('d','a','b','g412','xy3'),('d','a','b','h412','xy4'), +('d','b','a','i421','xy1'),('d','b','a','j421','xy2'),('d','b','a','k421','xy3'),('d','b','a','l421','xy4'), +('d','b','b','m422','xy1'),('d','b','b','n422','xy2'),('d','b','b','o422','xy3'),('d','b','b','p422','xy4'); +create index idx12672_0 on t4 (a1); +create index idx12672_1 on t4 (a1,a2,b,c); +create index idx12672_2 on t4 (a1,a2,b); +analyze table t4; +Table Op Msg_type Msg_text +test.t4 analyze status Engine-independent statistics collected +test.t4 analyze status OK +select distinct a1 from t4 where pk_col not in (1,2,3,4); +a1 +a +b +c +d +drop table t4; +create table t1 ( +a varchar(30), b varchar(30), primary key(a), key(b) +) engine=innodb; +select distinct a from t1; +a +drop table t1; +create table t1(a int, key(a)) engine=innodb; +insert into t1 values(1); +select a, count(a) from t1 group by a with rollup; +a count(a) +1 1 +NULL 1 +drop table t1; +create table t1 (f1 int, f2 char(1), primary key(f1,f2)) engine=innodb; +insert into t1 values ( 1,"e"),(2,"a"),( 3,"c"),(4,"d"); +alter table t1 drop primary key, add primary key (f2, f1); +explain select distinct f1 a, f1 b from t1; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 index NULL PRIMARY 5 NULL 4 Using index; Using temporary +explain select distinct f1, f2 from t1; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 index NULL PRIMARY 5 NULL 4 Using index +drop table t1; +create table t1(pk int primary key) engine=innodb; +create view v1 as select pk from t1 where pk < 20; +insert into t1 values (1), (2), (3), (4); +select distinct pk from v1; +pk +1 +2 +3 +4 +insert into t1 values (5), (6), (7); +select distinct pk from v1; +pk +1 +2 +3 +4 +5 +6 +7 +drop view v1; +drop table t1; +End of 5.1 tests +# +# Bug#12540545 61101: ASSERTION FAILURE IN THREAD 1256741184 IN +# FILE /BUILDDIR/BUILD/BUILD/MYSQ +# +CREATE TABLE t1 (a CHAR(1), b CHAR(1), PRIMARY KEY (a,b)) ENGINE=InnoDB; +INSERT INTO t1 VALUES ('a', 'b'), ('c', 'd'); +EXPLAIN SELECT COUNT(DISTINCT a) FROM t1 WHERE b = 'b'; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 index NULL PRIMARY 2 NULL 2 Using where; Using index +SELECT COUNT(DISTINCT a) FROM t1 WHERE b = 'b'; +COUNT(DISTINCT a) +1 +DROP TABLE t1; +CREATE TABLE t1 (a CHAR(1) NOT NULL, b CHAR(1) NOT NULL, UNIQUE KEY (a,b)) +ENGINE=InnoDB; +INSERT INTO t1 VALUES ('a', 'b'), ('c', 'd'); +EXPLAIN SELECT COUNT(DISTINCT a) FROM t1 WHERE b = 'b'; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 index NULL a 2 NULL 2 Using where; Using index +SELECT COUNT(DISTINCT a) FROM t1 WHERE b = 'b'; +COUNT(DISTINCT a) +1 +DROP TABLE t1; +End of 5.5 tests +# +# Bug#17909656 - WRONG RESULTS FOR A SIMPLE QUERY WITH GROUP BY +# +CREATE TABLE t0 ( +i1 INTEGER NOT NULL +); +INSERT INTO t0 VALUES (1),(2),(3),(4),(5),(6),(7),(8),(9),(10), +(11),(12),(13),(14),(15),(16),(17),(18),(19),(20), +(21),(22),(23),(24),(25),(26),(27),(28),(29),(30); +CREATE TABLE t1 ( +c1 CHAR(1) NOT NULL, +i1 INTEGER NOT NULL, +i2 INTEGER NOT NULL, +UNIQUE KEY k1 (c1,i2) +) ENGINE=InnoDB; +INSERT INTO t1 SELECT 'A',i1,i1 FROM t0; +INSERT INTO t1 SELECT 'B',i1,i1 FROM t0; +INSERT INTO t1 SELECT 'C',i1,i1 FROM t0; +INSERT INTO t1 SELECT 'D',i1,i1 FROM t0; +INSERT INTO t1 SELECT 'E',i1,i1 FROM t0; +INSERT INTO t1 SELECT 'F',i1,i1 FROM t0; +CREATE TABLE t2 ( +c1 CHAR(1) NOT NULL, +i1 INTEGER NOT NULL, +i2 INTEGER NOT NULL, +UNIQUE KEY k2 (c1,i1,i2) +) ENGINE=InnoDB; +INSERT INTO t2 SELECT 'A',i1,i1 FROM t0; +INSERT INTO t2 SELECT 'B',i1,i1 FROM t0; +INSERT INTO t2 SELECT 'C',i1,i1 FROM t0; +INSERT INTO t2 SELECT 'D',i1,i1 FROM t0; +INSERT INTO t2 SELECT 'E',i1,i1 FROM t0; +INSERT INTO t2 SELECT 'F',i1,i1 FROM t0; +ANALYZE TABLE t1; +ANALYZE TABLE t2; +EXPLAIN SELECT c1, max(i2) FROM t1 WHERE (c1 = 'C' AND i2 = 17) OR ( c1 = 'F') +GROUP BY c1; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 range k1 k1 5 NULL 31 Using where; Using index +SELECT c1, max(i2) FROM t1 WHERE (c1 = 'C' AND i2 = 17) OR ( c1 = 'F') +GROUP BY c1; +c1 max(i2) +C 17 +F 30 +EXPLAIN SELECT c1, max(i2) FROM t1 WHERE (c1 = 'C' OR ( c1 = 'F' AND i2 = 17)) +GROUP BY c1; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 range k1 k1 5 NULL 31 Using where; Using index +SELECT c1, max(i2) FROM t1 WHERE (c1 = 'C' OR ( c1 = 'F' AND i2 = 17)) +GROUP BY c1; +c1 max(i2) +C 30 +F 17 +EXPLAIN SELECT c1, max(i2) FROM t1 WHERE (c1 = 'C' OR c1 = 'F' ) AND ( i2 = 17 ) +GROUP BY c1; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 range k1 k1 5 NULL 1 Using where; Using index for group-by +SELECT c1, max(i2) FROM t1 WHERE (c1 = 'C' OR c1 = 'F' ) AND ( i2 = 17 ) +GROUP BY c1; +c1 max(i2) +C 17 +F 17 +EXPLAIN SELECT c1, max(i2) FROM t1 +WHERE ((c1 = 'C' AND (i2 = 40 OR i2 = 30)) OR ( c1 = 'F' AND (i2 = 40 ))) +GROUP BY c1; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 range k1 k1 5 NULL 3 Using where; Using index +SELECT c1, max(i2) FROM t1 +WHERE ((c1 = 'C' AND (i2 = 40 OR i2 = 30)) OR ( c1 = 'F' AND (i2 = 40 ))) +GROUP BY c1; +c1 max(i2) +C 30 +EXPLAIN SELECT c1, i1, max(i2) FROM t2 +WHERE (c1 = 'C' OR ( c1 = 'F' AND i1 < 35)) AND ( i2 = 17 ) +GROUP BY c1,i1; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t2 range k2 k2 9 NULL 60 Using where; Using index for group-by +SELECT c1, i1, max(i2) FROM t2 +WHERE (c1 = 'C' OR ( c1 = 'F' AND i1 < 35)) AND ( i2 = 17 ) +GROUP BY c1,i1; +c1 i1 max(i2) +C 17 17 +F 17 17 +EXPLAIN SELECT c1, i1, max(i2) FROM t2 +WHERE (((c1 = 'C' AND i1 < 40) OR ( c1 = 'F' AND i1 < 35)) AND ( i2 = 17 )) +GROUP BY c1,i1; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t2 range k2 k2 9 NULL 60 Using where; Using index for group-by +SELECT c1, i1, max(i2) FROM t2 +WHERE (((c1 = 'C' AND i1 < 40) OR ( c1 = 'F' AND i1 < 35)) AND ( i2 = 17 )) +GROUP BY c1,i1; +c1 i1 max(i2) +C 17 17 +F 17 17 +EXPLAIN SELECT c1, i1, max(i2) FROM t2 +WHERE ((c1 = 'C' AND i1 < 40) OR ( c1 = 'F' AND i1 < 35) OR ( i2 = 17 )) +GROUP BY c1,i1; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t2 index k2 k2 9 NULL 180 Using where; Using index +SELECT c1, i1, max(i2) FROM t2 +WHERE ((c1 = 'C' AND i1 < 40) OR ( c1 = 'F' AND i1 < 35) OR ( i2 = 17 )) +GROUP BY c1,i1; +c1 i1 max(i2) +A 17 17 +B 17 17 +C 1 1 +C 2 2 +C 3 3 +C 4 4 +C 5 5 +C 6 6 +C 7 7 +C 8 8 +C 9 9 +C 10 10 +C 11 11 +C 12 12 +C 13 13 +C 14 14 +C 15 15 +C 16 16 +C 17 17 +C 18 18 +C 19 19 +C 20 20 +C 21 21 +C 22 22 +C 23 23 +C 24 24 +C 25 25 +C 26 26 +C 27 27 +C 28 28 +C 29 29 +C 30 30 +D 17 17 +E 17 17 +F 1 1 +F 2 2 +F 3 3 +F 4 4 +F 5 5 +F 6 6 +F 7 7 +F 8 8 +F 9 9 +F 10 10 +F 11 11 +F 12 12 +F 13 13 +F 14 14 +F 15 15 +F 16 16 +F 17 17 +F 18 18 +F 19 19 +F 20 20 +F 21 21 +F 22 22 +F 23 23 +F 24 24 +F 25 25 +F 26 26 +F 27 27 +F 28 28 +F 29 29 +F 30 30 +DROP TABLE t0,t1,t2; +# +# MDEV-MariaDB daemon leaks memory with specific query +# +CREATE TABLE t1 (`voter_id` int(11) unsigned NOT NULL, +`language_id` int(11) unsigned NOT NULL DEFAULT '1' +) ENGINE=InnoDB DEFAULT CHARSET=utf8; +CREATE TABLE t2 (`voter_id` int(10) unsigned NOT NULL DEFAULT '0', +`serialized_c` mediumblob) ENGINE=InnoDB DEFAULT CHARSET=utf8; +insert into t2 values (1,repeat("a",1000)),(2,repeat("a",1000)),(3,repeat("b",1000)),(4,repeat("c",1000)),(4,repeat("b",1000)); +SELECT GROUP_CONCAT(t1.language_id SEPARATOR ',') AS `translation_resources`, `d`.`serialized_c` FROM t2 AS `d` LEFT JOIN t1 ON `d`.`voter_id` = t1.`voter_id` GROUP BY `d`.`voter_id` ORDER BY 10-d.voter_id+RAND()*0; +translation_resources serialized_c +NULL cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc +NULL bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb +NULL aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +NULL aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +drop table t1,t2; +# +# MDEV-30143: Segfault on select query using index for group-by and filesort +# +CREATE TABLE t1 (a varchar(35), b varchar(4)) ENGINE=InnoDB; +INSERT INTO t1 VALUES +('Albania','AXA'),('Australia','AUS'),('American Samoa','AMSA'),('Bahamas','BS'); +CREATE TABLE t2 (a varchar(4), b varchar(50), PRIMARY KEY (b,a), KEY (a)) ENGINE=InnoDB; +INSERT INTO t2 VALUES +('BERM','African Methodist Episcopal'),('AUS','Anglican'),('BERM','Anglican'),('BS','Anglican'),('BS','Baptist'),('BS','Methodist'); +EXPLAIN SELECT t1.a +FROM (SELECT a FROM t2 GROUP BY a ORDER BY COUNT(DISTINCT b) LIMIT 1) dt +JOIN t1 ON dt.a=t1.b; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL # Using where +1 PRIMARY <derived2> ref key0 key0 6 test.t1.b # +2 DERIVED t2 range a a 58 NULL # Using index for group-by; Using temporary; Using filesort +SELECT t1.a +FROM (SELECT a FROM t2 GROUP BY a ORDER BY COUNT(DISTINCT b) LIMIT 1) dt +JOIN t1 ON dt.a=t1.b; +a +Australia +DROP TABLES t1, t2; +set global innodb_stats_persistent= @innodb_stats_persistent_save; +set global innodb_stats_persistent_sample_pages= +@innodb_stats_persistent_sample_pages_save; |