mariadb/mysql-test/main/group_min_max_innodb.test

#
# Test file for WL#1724 (Min/Max Optimization for Queries with Group By Clause).
# The queries in this file test query execution via QUICK_GROUP_MIN_MAX_SELECT
# that depends on InnoDB
#

--source include/have_innodb.inc

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;

--disable_warnings
drop view if exists v1;
drop table if exists t1,t4;
--enable_warnings

#
# Bug #12672: primary key implcitly included in every innodb index
#

--disable_warnings
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;
--enable_warnings

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;

select distinct a1 from t4 where pk_col not in (1,2,3,4);

drop table t4;


#
# Bug #6142: a problem with the empty innodb table
#

--disable_warnings
create table t1 (
  a varchar(30), b varchar(30), primary key(a), key(b)
) engine=innodb;
--enable_warnings
select distinct a from t1;
drop table t1;

#
# Bug #9798: group by with rollup
#

--disable_warnings
create table t1(a int, key(a)) engine=innodb;
--enable_warnings
insert into t1 values(1);
select a, count(a) from t1 group by a with rollup;
drop table t1;


#
# Bug #13293 Wrongly used index results in endless loop.
#
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;
explain select distinct f1, f2 from t1;
drop table t1;


#
# Bug #36632: Select distinct from a simple view on an InnoDB table
#             returns incorrect results
#
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;

insert into t1 values (5), (6), (7);
select distinct pk from v1;

drop view v1;
drop table t1;

--echo End of 5.1 tests

--echo #
--echo # Bug#12540545 61101: ASSERTION FAILURE IN THREAD 1256741184 IN
--echo # FILE /BUILDDIR/BUILD/BUILD/MYSQ
--echo #

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';
SELECT COUNT(DISTINCT a) FROM t1 WHERE b = 'b';
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';
SELECT COUNT(DISTINCT a) FROM t1 WHERE b = 'b';
DROP TABLE t1;

--echo End of 5.5 tests

--echo #
--echo # Bug#17909656 - WRONG RESULTS FOR A SIMPLE QUERY WITH GROUP BY
--echo #

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;

-- disable_result_log
ANALYZE TABLE t1;
ANALYZE TABLE t2;
-- enable_result_log

let query=
SELECT c1, max(i2) FROM t1 WHERE (c1 = 'C' AND i2 = 17) OR ( c1 = 'F')
GROUP BY c1;
eval EXPLAIN $query;
eval $query;

let query=
SELECT c1, max(i2) FROM t1 WHERE (c1 = 'C' OR ( c1 = 'F' AND i2 = 17))
GROUP BY c1;
eval EXPLAIN $query;
eval $query;

let query=
SELECT c1, max(i2) FROM t1 WHERE (c1 = 'C' OR c1 = 'F' ) AND ( i2 = 17 )
GROUP BY c1;
eval EXPLAIN $query;
eval $query;

let query=
SELECT c1, max(i2) FROM t1 
WHERE ((c1 = 'C' AND (i2 = 40 OR i2 = 30)) OR ( c1 = 'F' AND (i2 = 40 )))
GROUP BY c1;
eval EXPLAIN $query;
eval $query;

let query=
SELECT c1, i1, max(i2) FROM t2
WHERE (c1 = 'C' OR ( c1 = 'F' AND i1 < 35)) AND ( i2 = 17 )
GROUP BY c1,i1;
eval EXPLAIN $query;
eval $query;

let query=
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;
eval EXPLAIN $query;
eval $query;

let query=
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;
eval EXPLAIN $query;
eval $query;

DROP TABLE t0,t1,t2;

--echo #
--echo # MDEV-MariaDB daemon leaks memory with specific query
--echo #

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;
drop table t1,t2;


--echo #
--echo # MDEV-30143: Segfault on select query using index for group-by and filesort
--echo #
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');

let query=
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;
--replace_column 9 #
eval EXPLAIN $query;
eval $query;

DROP TABLES t1, t2;

--echo #
--echo # MDEV-15656: Assertion `is_last_prefix <= 0' failed in
--echo #             QUICK_GROUP_MIN_MAX_SELECT::get_next
--echo #
SET @lru_depth.save= @@innodb_lru_scan_depth;
SET GLOBAL innodb_lru_scan_depth= 1024;

CREATE TABLE t1 (
  pk_part1 INT AUTO_INCREMENT,
  a VARCHAR(4),
  row_start timestamp(6) default current_timestamp,
  PRIMARY KEY (pk_part1, row_start)
) ENGINE=InnoDB;

INSERT INTO t1 (a) VALUES
('foo'),('bar'),('foo'),('bar'),('foo'),
('foo'),('bar'),('foo'),('bar'),('foo'),
('foo'),('bar'),('foo'),('bar'),('foo'),
('foo'),('bar'),('foo'),('bar'),('foo'),
('foo'),('bar'),('foo'),('bar'),('foo'),
('foo'),('bar'),('foo'),('bar'),('foo'),
('foo'),('bar'),('foo'),('bar'),('foo'),
('foo'),('bar'),('foo'),('bar'),('foo');

--connect (con1,localhost,root,,test)

SET SESSION TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;

--let $run= 20
--disable_result_log
while ($run)
{
  --send
    SELECT DISTINCT pk_part1 FROM t1;
  --connection default
  INSERT INTO t1 (pk_part1) VALUES (NULL);
  --connection con1
  --reap
  --dec $run
}
--enable_result_log

--disconnect con1
--connection default
DROP TABLE t1;
SET GLOBAL innodb_lru_scan_depth= @lru_depth.save;

set global innodb_stats_persistent= @innodb_stats_persistent_save;
set global innodb_stats_persistent_sample_pages=
             @innodb_stats_persistent_sample_pages_save;