path: root/mysql-test/include/icp_tests.inc

--echo #
--echo # Bug#36981 - "innodb crash when selecting for update"
--echo #

#
# Test 1: Test based on the reproduction test case for this bug.
#         This query resulted in a crash in InnoDB due to
#         InnoDB changing from using the index which the push condition
#         where for to use the clustered index due to "SELECT ... FOR UPDATE".
#

CREATE TABLE t1 (
  c1 CHAR(1),
  c2 CHAR(10),
  KEY (c1)
);

INSERT INTO t1 VALUES ('3', null);

SELECT * FROM t1 WHERE c1='3' FOR UPDATE;

DROP TABLE t1;

#
# Test 2: Extended test case to test that the correct rows are returned.
#         This test is for ensuring that if InnoDB refuses to accept
#         the pushed index condition it is still evaluated.
#         

CREATE TABLE t1 (a INT);
INSERT INTO t1 VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);

CREATE TABLE t2 (a INT);
INSERT INTO t2 SELECT A.a + 10*(B.a + 10*C.a) FROM t1 A, t1 B, t1 C;

CREATE TABLE t3 (
  c1 CHAR(10) NOT NULL,
  c2 CHAR(10) NOT NULL,
  c3 CHAR(200) NOT NULL,
  KEY (c1)
);

INSERT INTO t3 
  SELECT CONCAT('c-',1000+t2.a,'=w'), CONCAT('c-',1000+ t2.a,'=w'), 'filler'
  FROM t2;

INSERT INTO t3 
  SELECT CONCAT('c-',1000+t2.a,'=w'), CONCAT('c-',2000+t2.a,'=w'), 'filler-1'
  FROM t2;
 
INSERT INTO t3
  SELECT CONCAT('c-',1000+t2.a,'=w'), CONCAT('c-',3000+t2.a,'=w'), 'filler-2'
  FROM t2;

--sorted_result
SELECT c1,c3 FROM t3 WHERE c1 >= 'c-1994=w' and c1 != 'c-1996=w' FOR UPDATE;

DROP TABLE t1,t2,t3;

--echo #
--echo # Bug#42580 - Innodb's ORDER BY ..LIMIT returns no rows for
--echo #             null-safe operator <=> NULL
--echo #

CREATE TABLE t1(
  c1 DATE NOT NULL,
  c2 DATE NULL,
  c3 DATETIME,
  c4 TIMESTAMP,
  PRIMARY KEY(c1),
  UNIQUE(c2)
);

--echo
INSERT INTO t1 VALUES('0000-00-00', '0000-00-00', '2008-01-04', '2008-01-05');
INSERT INTO t1 VALUES('2007-05-25', '2007-05-25', '2007-05-26', '2007-05-26');
INSERT INTO t1 VALUES('2008-01-01', NULL        , '2008-01-02', '2008-01-03');
INSERT INTO t1 VALUES('2008-01-17', NULL        , NULL        , '2009-01-29');
INSERT INTO t1 VALUES('2009-01-29', '2009-01-29', '2009-01-29', '2009-01-29');

--echo
SELECT * FROM t1 WHERE c2 <=> NULL ORDER BY c1,c2;
--echo
SELECT * FROM t1 WHERE c2 <=> NULL ORDER BY c1,c2 LIMIT 2;

--echo
DROP TABLE t1;

--echo #
--echo # Bug#43617 - Innodb returns wrong results with timestamp's range value 
--echo #             in IN clause
--echo # (Note: Fixed by patch for BUG#42580)
--echo #

CREATE TABLE t1(
  c1 TIMESTAMP NOT NULL, 
  c2 TIMESTAMP NULL, 
  c3 DATE, 
  c4 DATETIME, 
  PRIMARY KEY(c1), 
  UNIQUE INDEX(c2)
);

INSERT INTO t1 VALUES
  ('0000-00-00 00:00:00','0000-00-00 00:00:00','2008-01-04','2008-01-05 00:00:00'),
  ('1971-01-01 00:00:01','1980-01-01 00:00:01','2009-01-01','2009-01-02 00:00:00'),
  ('1999-01-01 00:00:00','1999-01-01 00:00:00', NULL,        NULL),
  ('2007-05-23 09:15:28','2007-05-23 09:15:28','2007-05-24','2007-05-24 09:15:28'),
  ('2007-05-27 00:00:00','2007-05-25 00:00:00','2007-05-26','2007-05-26 00:00:00'),
  ('2008-01-01 00:00:00', NULL,                '2008-01-02','2008-01-03 00:00:00'),
  ('2009-01-29 11:11:27','2009-01-29 11:11:27','2009-01-29','2009-01-29 11:11:27'),
  ('2038-01-09 03:14:07','2038-01-09 03:14:07','2009-01-05','2009-01-06 00:00:00');

--echo
SELECT * 
FROM t1 
WHERE c2 IN ('1971-01-01 00:00:01','2038-01-09 03:14:07') 
ORDER BY c2;

--echo
SELECT * 
FROM t1 
WHERE c2 IN ('1971-01-01 00:00:01','2038-01-09 03:14:07') 
ORDER BY c2 LIMIT 2;

--echo
SELECT * 
FROM t1 
WHERE c2 IN ('1971-01-01 00:00:01','2038-01-09 03:14:07') 
ORDER BY c2 DESC;

--echo
SELECT * 
FROM t1 
WHERE c2 IN ('1971-01-01 00:00:01','2038-01-09 03:14:07') 
ORDER BY c2 DESC LIMIT 2;

--echo
DROP TABLE t1;

--echo #
--echo # BUG#43618: MyISAM&Maria returns wrong results with 'between' 
--echo #            on timestamp
--echo #

CREATE TABLE t1(
   ts TIMESTAMP NOT NULL, 
   c char NULL,
   PRIMARY KEY(ts)
);

INSERT INTO t1 VALUES
   ('1971-01-01','a'),
   ('2007-05-25','b'),
   ('2008-01-01','c'),
   ('2038-01-09','d');

--disable_warnings

--echo
--echo # Execute select with invalid timestamp, desc ordering
SELECT *
FROM t1 
WHERE ts BETWEEN '0000-00-00' AND '2010-00-01 00:00:00' 
ORDER BY ts DESC
LIMIT 2; 

--echo
--echo # Should use index condition
EXPLAIN
SELECT *
FROM t1 
WHERE ts BETWEEN '0000-00-00' AND '2010-00-01 00:00:00' 
ORDER BY ts DESC
LIMIT 2; 
--echo

--enable_warnings

DROP TABLE t1;

--echo #
--echo # BUG#49906: Assertion failed - Field_varstring::val_str in field.cc
--echo # (Note: Fixed by patch for LP BUG#625841)
--echo #

CREATE TABLE t1 ( 
  f1 VARCHAR(1024),
  f2 VARCHAR(10),
  INDEX test_idx USING BTREE (f2,f1(5))
);

INSERT INTO t1 VALUES  ('a','c'), ('b','d');  

SELECT f1
FROM t1 
WHERE f2 LIKE 'd' 
ORDER BY f1;

DROP TABLE t1;

--echo #
--echo # Bug#52660 - "Perf. regr. using ICP for MyISAM on range queries on 
--echo #              an index containing TEXT"
--echo #

CREATE TABLE t1 (a INT);
INSERT INTO t1 VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);

CREATE TABLE t2 (a INT);
INSERT INTO t2 SELECT A.a + 10*(B.a) FROM t1 A, t1 B;

CREATE TABLE t3 (
  c1 TINYTEXT NOT NULL,
  i1 INT NOT NULL,
  KEY (c1(6),i1)
);

INSERT INTO t3 SELECT CONCAT('c-',1000+t2.a,'=w'), 1 FROM t2;

EXPLAIN
SELECT c1 FROM t3 WHERE c1 >= 'c-1004=w' and c1 <= 'c-1006=w';
SELECT c1 FROM t3 WHERE c1 >= 'c-1004=w' and c1 <= 'c-1006=w';

EXPLAIN
SELECT c1 FROM t3 WHERE c1 >= 'c-1004=w' and c1 <= 'c-1006=w' and i1 > 2;
SELECT c1 FROM t3 WHERE c1 >= 'c-1004=w' and c1 <= 'c-1006=w' and i1 > 2;

EXPLAIN
SELECT c1 FROM t3 WHERE c1 >= 'c-1004=w' and c1 <= 'c-1006=w' or i1 > 2;
SELECT c1 FROM t3 WHERE c1 >= 'c-1004=w' and c1 <= 'c-1006=w' or i1 > 2;

DROP TABLE t1, t2, t3;

--echo #
--echo # Bug#40992 - InnoDB: Crash when engine_condition_pushdown is on
--echo #

CREATE TABLE t (
  dummy INT PRIMARY KEY, 
  a INT UNIQUE, 
  b INT
);

INSERT INTO t VALUES (1,1,1),(3,3,3),(5,5,5);

SELECT * FROM t WHERE a > 2 FOR UPDATE;

DROP TABLE t;


--echo #
--echo # Bug#35080 - Innodb crash at mem_block_get_len line 72
--echo #

CREATE TABLE t1 (
  t1_autoinc INT(11) NOT NULL AUTO_INCREMENT,
  uuid VARCHAR(36) DEFAULT NULL,
  PRIMARY KEY (t1_autoinc),
  KEY k (uuid)
);

CREATE TABLE t2 (
  t2_autoinc INT(11) NOT NULL AUTO_INCREMENT,
  uuid VARCHAR(36) DEFAULT NULL,
  date DATETIME DEFAULT NULL,
  PRIMARY KEY (t2_autoinc),
  KEY k (uuid)
);

CREATE VIEW v1 AS 
  SELECT t1_autoinc, uuid
  FROM t1
  WHERE (ISNULL(uuid) OR (uuid like '%-%'));

CREATE VIEW v2 AS 
  SELECT t2_autoinc, uuid, date 
  FROM t2
  WHERE (ISNULL(uuid) OR (LENGTH(uuid) = 36));

CREATE PROCEDURE delete_multi (IN uuid CHAR(36))
  DELETE v1, v2 FROM v1 INNER JOIN v2
  ON v1.uuid = v2.uuid
  WHERE v1.uuid = @uuid;

SET @uuid = UUID();

INSERT INTO v1 (uuid) VALUES (@uuid);
INSERT INTO v2 (uuid, date) VALUES (@uuid, '2009-09-09');

CALL delete_multi(@uuid);

DROP procedure delete_multi;
DROP table t1,t2;
DROP view v1,v2;

--echo #
--echo # Bug#41996 - multi-table delete crashes server (InnoDB table)
--echo #

CREATE TABLE t1 (
  b BIGINT,
  i INT, 
  KEY (b)
);

INSERT INTO t1 VALUES (2, 2);

DELETE t1 FROM t1 a, t1 WHERE a.i=t1.b;

DROP TABLE t1;

--echo #
--echo # Bug#43448 - Server crashes on multi table delete with Innodb
--echo #

CREATE TABLE t1 (
  id1 INT NOT NULL AUTO_INCREMENT PRIMARY KEY, 
  t CHAR(12)
);

CREATE TABLE t2 (
  id2 INT NOT NULL, 
  t CHAR(12)
);

CREATE TABLE t3(
  id3 INT NOT NULL, 
  t CHAR(12), 
  INDEX(id3)
);

delimiter |;

CREATE PROCEDURE insert_data ()
BEGIN
  DECLARE i1 INT DEFAULT 20;
  DECLARE i2 INT;
  DECLARE i3 INT;

  WHILE (i1 > 0) DO
    INSERT INTO t1(t) VALUES (i1);
    SET i2 = 2;
    WHILE (i2 > 0) DO
      INSERT INTO t2(id2, t) VALUES (i1, i2);
      SET i3 = 2;
      WHILE (i3 > 0) DO
        INSERT INTO t3(id3, t) VALUES (i1, i2);
        SET i3 = i3 -1;
      END WHILE;
      SET i2 = i2 -1;
    END WHILE;
    SET i1 = i1 - 1;
  END WHILE;
END |

delimiter ;|

CALL insert_data();

SELECT COUNT(*) FROM t1 WHERE id1 > 10;
SELECT COUNT(*) FROM t2 WHERE id2 > 10;
SELECT COUNT(*) FROM t3 WHERE id3 > 10;

DELETE t1, t2, t3 
FROM t1, t2, t3 
WHERE t1.id1 = t2.id2 AND t2.id2 = t3.id3 AND t1.id1 > 3;

SELECT COUNT(*) FROM t1;
SELECT COUNT(*) FROM t2;
SELECT COUNT(*) FROM t3;

DROP PROCEDURE insert_data;
DROP TABLE t1, t2, t3;

--echo #
--echo # Bug#57372 "Multi-table updates and deletes fail when running with ICP 
--echo #            against InnoDB"
--echo #

CREATE TABLE t1 (
  a INT KEY, 
  b INT
);

CREATE TABLE t2 (
  a INT KEY, 
  b INT
);

INSERT INTO t1 VALUES (1, 101), (2, 102), (3, 103), (4, 104), (5, 105);
INSERT INTO t2 VALUES (1, 1), (2, 2), (3, 3), (4, 4), (5, 5);

UPDATE t1, t2 
SET t1.a = t1.a + 100, t2.b = t1.a + 10 
WHERE t1.a BETWEEN 2 AND 4 AND t2.a = t1.b - 100;

--sorted_result
SELECT * FROM t1;
--sorted_result
SELECT * FROM t2;

DROP TABLE t1, t2;

--echo #
--echo # Bug#52605 - "Adding LIMIT 1 clause to query with complex range 
--echo #              predicate causes wrong results"
--echo #

CREATE TABLE t1 (
  pk INT NOT NULL,
  c1 INT,
  PRIMARY KEY (pk),
  KEY k1 (c1)
);

INSERT INTO t1 VALUES (1,NULL);
INSERT INTO t1 VALUES (2,6);
INSERT INTO t1 VALUES (3,NULL);
INSERT INTO t1 VALUES (4,6);
INSERT INTO t1 VALUES (5,NULL);
INSERT INTO t1 VALUES (6,NULL);
INSERT INTO t1 VALUES (7,9);
INSERT INTO t1 VALUES (8,0);

SELECT pk, c1
FROM t1  
WHERE (pk BETWEEN 4 AND 5 OR pk < 2) AND c1 < 240
ORDER BY c1
LIMIT 1;

EXPLAIN SELECT pk, c1
FROM t1  
WHERE (pk BETWEEN 4 AND 5 OR pk < 2) AND c1 < 240
ORDER BY c1
LIMIT 1;

DROP TABLE t1;

--echo #
--echo # Bug#59259 "Incorrect rows returned for a correlated subquery
--echo #            when ICP is on"
--echo #

CREATE TABLE t1 (pk INTEGER PRIMARY KEY, i INTEGER NOT NULL) ENGINE=InnoDB;

INSERT INTO t1 VALUES (11,0);
INSERT INTO t1 VALUES (12,5);
INSERT INTO t1 VALUES (15,0);

CREATE TABLE t2 (pk INTEGER PRIMARY KEY, i INTEGER NOT NULL) ENGINE=InnoDB;

INSERT INTO t2 VALUES (11,1);
INSERT INTO t2 VALUES (12,2);
INSERT INTO t2 VALUES (15,4);

set @save_optimizer_switch= @@optimizer_switch;
set optimizer_switch='semijoin=off';

EXPLAIN
SELECT * FROM t1
WHERE pk IN (SELECT it.pk FROM t2 JOIN t2 AS it ON it.i=it.i WHERE it.pk-t1.i<10);
SELECT * FROM t1
WHERE pk IN (SELECT it.pk FROM t2 JOIN t2 AS it ON it.i=it.i WHERE it.pk-t1.i<10);

set optimizer_switch=@save_optimizer_switch;

DROP TABLE t1, t2;

--echo #
--echo # Bug #58816 "Extra temporary duplicate rows in result set when 
--echo #             switching ICP off"
--echo #

set @save_optimizer_switch= @@optimizer_switch;

CREATE TABLE t1 (
  pk INT NOT NULL,
  c1 INT NOT NULL,
  PRIMARY KEY (pk)
);

INSERT INTO t1 VALUES (1,9),(2,7),(3,6),(4,3),(5,1);

EXPLAIN SELECT pk, c1 FROM t1 WHERE pk <> 3;

SET SESSION optimizer_switch='index_condition_pushdown=off';

SELECT pk, c1 FROM t1 WHERE pk <> 3;

DROP TABLE t1;

set optimizer_switch= @save_optimizer_switch;

--echo #
--echo # Bug#58837: ICP crash or valgrind error due to uninitialized 
--echo #            value in innobase_index_cond
--echo #

CREATE TABLE t1 (
  t1_int INT,
  t1_time TIME
);

CREATE TABLE t2 ( 
  t2_int int PRIMARY KEY,
  t2_int2 INT
);

--disable_warnings
INSERT INTO t2 VALUES ();
INSERT INTO t1 VALUES ();
--enable_warnings

SELECT * FROM t1 AS t1a 
  WHERE NOT EXISTS (SELECT * FROM t1 AS t1b
                      WHERE t1b.t1_int NOT IN
                            (SELECT t2.t2_int FROM t2
                               WHERE t1b.t1_time LIKE t1b.t1_int
                                     OR t1b.t1_time <> t2.t2_int2
                                        AND 6=7));

DROP TABLE t1,t2;

--echo #
--echo # Bug#59186: Wrong results of join when ICP is enabled
--echo #            (fixed by the patch for LP bug #694092)
--echo #

CREATE TABLE t1 (
  pk INTEGER NOT NULL,
  c1 VARCHAR(3) NOT NULL,
  PRIMARY KEY (pk)
);
INSERT INTO t1 VALUES (1,'y'),(0,'or');

CREATE TABLE t2 (
  pk INTEGER NOT NULL,
  c1 VARCHAR(3) NOT NULL,
  c2 VARCHAR(6) NOT NULL,
  PRIMARY KEY (pk)
);
INSERT INTO t2 VALUES (6,'y','RPOYT'),(10,'m','JINQE');

EXPLAIN
SELECT c2 FROM t1 JOIN t2 ON t1.c1 = t2.c1
WHERE (t2.pk <= 4 AND t1.pk IN (2,1)) OR
      (t1.pk > 1 AND t2.pk BETWEEN 6 AND 6);
SELECT c2 FROM t1 JOIN t2 ON t1.c1 = t2.c1
WHERE (t2.pk <= 4 AND t1.pk IN (2,1)) OR
      (t1.pk > 1 AND t2.pk BETWEEN 6 AND 6);

DROP TABLE t1, t2;

--echo #
--echo # Bug#58838: "Wrong results with HAVING + LIMIT without GROUP BY when 
--echo #            ICP is enabled".
--echo #            (Fixed by the patches for LP bugs #668644, #702322)
--echo # 

CREATE TABLE t1 (
  pk INT NOT NULL,
  c1 INT,
  PRIMARY KEY (pk),
  KEY col_int_key (c1)
);

INSERT INTO t1 VALUES (1,37),(2,8),(3,-25),(4,NULL),(5,55);

SELECT pk FROM t1 WHERE c1 <> 1 HAVING pk = 3 ORDER BY pk LIMIT 0;
SELECT pk FROM t1 WHERE c1 <> 1 HAVING pk = 3 ORDER BY pk LIMIT 1;
SELECT pk FROM t1 WHERE c1 <> 1 HAVING pk = 3 ORDER BY pk LIMIT 2;
SELECT pk FROM t1 WHERE c1 <> 1 HAVING pk = 3 ORDER BY pk LIMIT 5;

DROP TABLE t1;

--echo #
--echo # Bug#59483 "Crash on INSERT/REPLACE in
--echo #            rec_convert_dtuple_to_rec_comp with ICP on"
--echo #

CREATE TABLE t1 (
 pk INTEGER AUTO_INCREMENT PRIMARY KEY,
 i1 INTEGER,
 c1 CHAR(6),
 i2 INTEGER NOT NULL,
 KEY (i2)
);

INSERT INTO t1 VALUES
 (NULL, 4, 'that', 8),
 (NULL, 1, 'she', 6),
 (NULL, 6, 'tell', 2);

SELECT * FROM t1 WHERE i2 IN (3, 6) LIMIT 2 FOR UPDATE;
INSERT INTO t1 (i2) VALUES (1);

DROP TABLE t1;

--echo #
--echo # Bug #11766678 - 59843:
--echo # USING UNINITIALISED VALUE IN USES_INDEX_FIELDS_ONLY
--echo #

CREATE TABLE t1 (
  col999 FLOAT NOT NULL,
  COL1000 VARBINARY(179) NOT NULL,
  col1003 DATE DEFAULT NULL,
  KEY idx4267 (col1000, col1003)
);

INSERT INTO t1 VALUES (),();
SELECT col999 FROM t1 WHERE col1000 = "3" AND col1003 <=> sysdate();

DROP TABLE t1;

--echo #
--echo # BUG#12822678 - ICP WITH STRAIGHT_JOIN
--echo #

CREATE TABLE t1 (
  i1 INTEGER NOT NULL,
  d1 DOUBLE,
  KEY k1 (d1)
);
INSERT INTO t1 VALUES (10,1), (17,NULL), (22,NULL);

CREATE TABLE t2 (
  pk INTEGER NOT NULL,
  i1 INTEGER NOT NULL,
  PRIMARY KEY (pk)
);
INSERT INTO t2 VALUES (4,1);

EXPLAIN
SELECT t1.d1, t2.pk, t2.i1 FROM t1 STRAIGHT_JOIN t2 ON t2.i1
  WHERE t2.pk <> t1.d1 AND t2.pk = 4;
SELECT t1.d1, t2.pk, t2.i1 FROM t1 STRAIGHT_JOIN t2 ON t2.i1
  WHERE t2.pk <> t1.d1 AND t2.pk = 4;

DROP TABLE t1, t2;

--echo #
--echo # BUG#778434 Wrong result with in_to_exists=on in maria-5.3-mwl89
--echo #
CREATE TABLE t1 ( f11 int) ;
INSERT IGNORE INTO t1 VALUES (0);

CREATE TABLE t2 ( f10 int) ;
INSERT IGNORE INTO t2 VALUES (0);

CREATE TABLE t3 ( f1 int NOT NULL , f10 int, PRIMARY KEY (f1)) ;
INSERT IGNORE INTO t3 VALUES (6,0),(10,0);

CREATE TABLE t4 ( f11 int) ;
INSERT IGNORE INTO t4 VALUES
(0),(0),(0),(0),(0),(0),(0),(0),(0),(0),(NULL),
(0),(0),(0),(0),(0),(0),(0),(0),(0),(0);

set @tmp_778434=@@optimizer_switch;
SET optimizer_switch='materialization=off,in_to_exists=on,subquery_cache=off,semijoin=off';

SELECT * FROM t1 INNER JOIN t2 ON t2.f10 = t1.f11
WHERE (6, 234) IN (
        SELECT t3.f1, t3.f1
        FROM t3 JOIN t4 ON t4.f11 = t3.f10
);

DROP TABLE t1,t2,t3,t4;
set optimizer_switch= @tmp_778434;

--echo #
--echo # Bug#885168: ICP for one index + potential ORDER BY for another
--echo #

CREATE TABLE t1 (a varchar(64), b varchar(10), INDEX(a), INDEX(b)) ;
INSERT INTO t1 VALUES 
  ('Ohio','Iowa'), ('k','d'), ('bdkpj','mbdkpjdanp'), ('d','xdmbdkpjda'),
  ('fkxdmbdkpjdanpje','o'), ('f','Pennsylvan'), ('Virginia','ei');

SET SESSION optimizer_switch='index_condition_pushdown=off';
EXPLAIN
SELECT * FROM t1 
  WHERE NOT(b = 'Texas') AND b BETWEEN 'wy' AND 'y' OR b = 'Pennsylvania'
  ORDER BY a;
SELECT * FROM t1 
  WHERE NOT(b = 'Texas') AND b BETWEEN 'wy' AND 'y' OR b = 'Pennsylvania'
  ORDER BY a;

SET SESSION optimizer_switch='index_condition_pushdown=on';
EXPLAIN
SELECT * FROM t1 
  WHERE NOT(b = 'Texas') AND b BETWEEN 'wy' AND 'y' OR b = 'Pennsylvania'
  ORDER BY a;
SELECT * FROM t1 
  WHERE NOT(b = 'Texas') AND b BETWEEN 'wy' AND 'y' OR b = 'Pennsylvania'
  ORDER BY a;

DROP TABLE t1;

--echo #
--echo # Bug#886145: join with ICP + ORDER BY  
--echo #

CREATE TABLE t1 (b int NOT NULL, c int, a varchar(1024), PRIMARY KEY (b));
INSERT INTO t1 VALUES (1,4,'Ill');

CREATE TABLE t2 (a varchar(1024), KEY (a(512)));
INSERT INTO t2 VALUES
  ('Ill'), ('eckqzsflbzaffti'), ('w'), ('she'), ('gxbwypqtjzwywwer'), ('w');

SET SESSION optimizer_switch='index_condition_pushdown=off';
EXPLAIN
SELECT t1.b, t1.c FROM t1, t2 WHERE t1.a = t2.a AND t1.b != 0 
  HAVING t1.c != 5 ORDER BY t1.c;
SELECT t1.b, t1.c FROM t1, t2 WHERE t1.a = t2.a AND t1.b != 0
  HAVING t1.c != 5 ORDER BY t1.c;

SET SESSION optimizer_switch='index_condition_pushdown=on';
EXPLAIN
SELECT t1.b, t1.c FROM t1, t2 WHERE t1.a = t2.a AND t1.b != 0
  HAVING t1.c != 5 ORDER BY t1.c;
SELECT t1.b, t1.c FROM t1, t2 WHERE t1.a = t2.a AND t1.b != 0
  HAVING t1.c != 5 ORDER BY t1.c;

DROP TABLE t1,t2;

--echo #
--echo # Bug#879871: InnoDB: possible ICP + GROUP BY primary index  
--echo #

CREATE TABLE t1 (
  a int NOT NULL, b int, c varchar(1), d varchar(1),
 PRIMARY KEY (a), KEY c (c,b)
);
INSERT INTO t1 VALUES (10,8,'g','g');

SET SESSION optimizer_switch='index_condition_pushdown=off';
SELECT a FROM t1 WHERE c IS NULL AND d IS NOT NULL GROUP BY 1;

SET SESSION optimizer_switch='index_condition_pushdown=on';
SELECT a FROM t1 WHERE c IS NULL AND d IS NOT NULL GROUP BY 1;

DROP TABLE t1;