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Current Path : /home/usr.opt/mysql57/mysql-test/t/
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Current File : //home/usr.opt/mysql57/mysql-test/t/single_delete_update.test
# The include statement below is a temp one for tests that are yet to
#be ported to run with InnoDB,
#but needs to be kept for tests that would need MyISAM in future.
--source include/force_myisam_default.inc

#
# Single table specific update/delete tests (mysql_update and mysql_delete)
#

--echo #
--echo # Bug #30584: delete with order by and limit clauses does not use
--echo #             limit efficiently
--echo #

CREATE TABLE t1 (i INT);
INSERT INTO t1 VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19),
                      (20),(21),(22),(23),(24),(25),(26),(27),(28),(29),
                      (30),(31),(32),(33),(34),(35);

CREATE TABLE t2(a INT, i INT PRIMARY KEY);
INSERT INTO t2 (i) SELECT i FROM t1;

FLUSH STATUS;
SELECT * FROM t2 WHERE i > 10 AND i <= 18 ORDER BY i LIMIT 1;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';

FLUSH STATUS;
DELETE FROM t2 WHERE i > 10 AND i <= 18 ORDER BY i LIMIT 1;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';
SELECT * FROM t2 WHERE i > 10 AND i <= 18 ORDER BY i;

DROP TABLE t2;

--echo #
--echo # index on field prefix:
--echo #

CREATE TABLE t2(a INT, i CHAR(2), INDEX(i(1)));
INSERT INTO t2 (i) SELECT i FROM t1;

FLUSH STATUS;
SELECT * FROM t2 WHERE i > 10 AND i <= 18 ORDER BY i LIMIT 1;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';

FLUSH STATUS;
DELETE FROM t2 WHERE i > 10 AND i <= 18 ORDER BY i LIMIT 1;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';
SELECT * FROM t2 WHERE i > 10 AND i <= 18 ORDER BY i;

DROP TABLE t2;

--echo #
--echo # constant inside ORDER BY list, should use filesort
--echo # on a small table
--echo #

CREATE TABLE t2(a INT, b INT, c INT, d INT, INDEX(a, b, c));
INSERT INTO t2 (a, b, c) SELECT i, i, i FROM t1;

FLUSH STATUS;
SELECT * FROM t2 WHERE b = 10 ORDER BY a, c LIMIT 7;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';

let $cnt = `SELECT COUNT(*) FROM t2 WHERE b = 10`;

FLUSH STATUS;
DELETE FROM t2 WHERE b = 10 ORDER BY a, c LIMIT 7;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';
--echo ## should be 5 (previous LIMIT)
eval SELECT $cnt - COUNT(*) FROM t2 WHERE b = 10;

DROP TABLE t2;

--echo #
--echo # same test as above (constant inside ORDER BY list), but with
--echo # a larger table - should not use filesort
--echo #

CREATE TABLE t2(a INT, b INT, c INT, d INT, INDEX(a, b, c));
INSERT INTO t2 (a, b, c) SELECT i, i, i FROM t1;

INSERT INTO t2 (a, b, c) SELECT t1.i, t1.i, t1.i FROM t1, t1 x1, t1 x2;

FLUSH STATUS;
SELECT * FROM t2 WHERE b = 10 ORDER BY a, c LIMIT 7;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';

let $cnt = `SELECT COUNT(*) FROM t2 WHERE b = 10`;

FLUSH STATUS;
DELETE FROM t2 WHERE b = 10 ORDER BY a, c LIMIT 7;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';
--echo ## should be 7 (previous LIMIT)
eval SELECT $cnt - COUNT(*) FROM t2 WHERE b = 10;

DROP TABLE t2;

--echo #
--echo # as above + partial index, should use filesort
--echo #

CREATE TABLE t2 (a CHAR(2), b CHAR(2), c CHAR(2), d CHAR(2), INDEX (a,b(1),c));
INSERT INTO t2 SELECT i, i, i, i FROM t1;

FLUSH STATUS;
SELECT * FROM t2 WHERE b = 10 ORDER BY a, c LIMIT 1;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';

FLUSH STATUS;
DELETE FROM t2 WHERE b = 10 ORDER BY a, c LIMIT 1;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';
SELECT * FROM t2 WHERE b = 10 ORDER BY a, c;

DROP TABLE t2;

--echo #
--echo # as above but index is without HA_READ_ORDER flag, should use filesort
--echo #

CREATE TABLE t2 (a CHAR(2), b CHAR(2), c CHAR(2), d CHAR(2), INDEX (a,b,c)) ENGINE=HEAP;
INSERT INTO t2 SELECT i, i, i, i FROM t1;

FLUSH STATUS;
SELECT * FROM t2 WHERE b = 10 ORDER BY a, c LIMIT 5;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';

FLUSH STATUS;
DELETE FROM t2 WHERE b = 10 ORDER BY a, c LIMIT 5;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';
SELECT * FROM t2 WHERE b = 10 ORDER BY a, c;

DROP TABLE t2;

--echo #
--echo # quick select is Index Merge, should use filesort
--echo #

CREATE TABLE t2 (i INT, key1 INT, key2 INT, INDEX (key1), INDEX (key2))
ENGINE= MyISAM;
INSERT INTO t2 (key1, key2) SELECT i, i FROM t1;
FLUSH STATUS;
SELECT * FROM t2 WHERE key1 < 13 or key2 < 14 ORDER BY key1;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';
--replace_column 1 x 2 x 3 x 5 x 6 x 7 x 8 x 9 x 10 x 11 x
EXPLAIN EXTENDED SELECT * FROM t2 WHERE key1 < 13 or key2 < 14 ORDER BY key1;

FLUSH STATUS;
DELETE FROM t2 WHERE key1 < 13 or key2 < 14 ORDER BY key1;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';
SELECT * FROM t2 WHERE key1 < 13 or key2 < 14 ORDER BY key1;
--replace_column 1 x 2 x 3 x 5 x 6 x 7 x 8 x 9 x 10 x 11 x
EXPLAIN EXTENDED SELECT * FROM t2 WHERE key1 < 13 or key2 < 14 ORDER BY key1;
DROP TABLE t2;

--echo #
--echo # reverse quick select, should not use filesort
--echo #

CREATE TABLE t2(a INT, i INT PRIMARY KEY);
INSERT INTO t2 (i) SELECT i FROM t1;

FLUSH STATUS;
SELECT * FROM t2 WHERE i > 10 AND i <= 18 ORDER BY i DESC LIMIT 1;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';

FLUSH STATUS;
DELETE FROM t2 WHERE i > 10 AND i <= 18 ORDER BY i DESC LIMIT 1;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';
SELECT * FROM t2 WHERE i > 10 AND i <= 18 ORDER BY i;

DROP TABLE t2;

--echo #
--echo # mixed sorting direction, should use filesort
--echo #

CREATE TABLE t2 (a CHAR(2), b CHAR(2), c CHAR(2), INDEX (a, b));
INSERT INTO t2 SELECT i, i, i FROM t1;

FLUSH STATUS;
SELECT * FROM t2 ORDER BY a, b DESC LIMIT 5;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';

FLUSH STATUS;
DELETE FROM t2 ORDER BY a, b DESC LIMIT 5;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';
SELECT * FROM t2 ORDER BY a, b DESC;

DROP TABLE t2;

--echo #
--echo # LIMIT with no WHERE and DESC direction, should not use filesort
--echo #

CREATE TABLE t2 (a CHAR(2), b CHAR(2), c CHAR(2), INDEX (a, b));
INSERT INTO t2 (a, b) SELECT i, i FROM t1;
INSERT INTO t2 (a, b) SELECT t1.i, t1.i FROM t1, t1 x1, t1 x2;

FLUSH STATUS;
SELECT * FROM t2 ORDER BY a, b LIMIT 5;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';

FLUSH STATUS;
SELECT * FROM t2 ORDER BY a DESC, b DESC LIMIT 5;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';

FLUSH STATUS;
DELETE FROM t2 ORDER BY a DESC, b DESC LIMIT 5;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';
SELECT * FROM t2 WHERE c = 10 ORDER BY a DESC, b DESC;

DROP TABLE t1, t2;


--echo #
--echo # Bug #36569: UPDATE ... WHERE ... ORDER BY... always does a filesort
--echo #             even if not required
--echo #

CREATE TABLE t1 (i INT);
INSERT INTO t1 VALUES (10),(11),(12),(13),(14),(15),(16),(17),(18),(19),
                      (20),(21),(22),(23),(24),(25),(26),(27),(28),(29),
                      (30),(31),(32),(33),(34),(35);

CREATE TABLE t2(a INT, i INT PRIMARY KEY);
INSERT INTO t2 (i) SELECT i FROM t1;

FLUSH STATUS;
SELECT * FROM t2 WHERE i > 10 AND i <= 18 ORDER BY i LIMIT 1;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';

FLUSH STATUS;
UPDATE t2 SET a = 10 WHERE i > 10 AND i <= 18 ORDER BY i LIMIT 1;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';
SELECT * FROM t2 WHERE i > 10 AND i <= 18 ORDER BY i;

DROP TABLE t2;

--echo #
--echo # index on field prefix:
--echo #

CREATE TABLE t2(a INT, i CHAR(2), INDEX(i(1)));
INSERT INTO t2 (i) SELECT i FROM t1;

FLUSH STATUS;
SELECT * FROM t2 WHERE i > 10 AND i <= 18 ORDER BY i LIMIT 5;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';

FLUSH STATUS;
UPDATE t2 SET a = 10 WHERE i > 10 AND i <= 18 ORDER BY i LIMIT 5;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';
SELECT * FROM t2 WHERE i > 10 AND i <= 18 ORDER BY i;

DROP TABLE t2;

--echo #
--echo # constant inside ORDER BY list, should use filesort
--echo # on a small table
--echo #

CREATE TABLE t2(a INT, b INT, c INT, d INT, INDEX(a, b, c));
INSERT INTO t2 (a, b, c) SELECT i, i, i FROM t1;

FLUSH STATUS;
SELECT * FROM t2 WHERE b = 10 ORDER BY a, c LIMIT 7;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';

let $cnt = `SELECT COUNT(*) FROM t2 WHERE b = 10`;

FLUSH STATUS;
UPDATE t2 SET d = 10 WHERE b = 10 ORDER BY a, c LIMIT 7;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';
--echo ## should be 5 (previous LIMIT)
SELECT COUNT(*) FROM t2 WHERE b = 10 AND d = 10 ORDER BY a, c;

DROP TABLE t2;

--echo #
--echo # same test as above (constant inside ORDER BY list), but with
--echo # a larger table - should not use filesort
--echo #

CREATE TABLE t2(a INT, b INT, c INT, d INT, INDEX(a, b, c));
INSERT INTO t2 (a, b, c) SELECT i, i, i FROM t1;

INSERT INTO t2 (a, b, c) SELECT t1.i, t1.i, t1.i FROM t1, t1 x1, t1 x2;

FLUSH STATUS;
SELECT * FROM t2 WHERE b = 10 ORDER BY a, c LIMIT 7;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';

let $cnt = `SELECT COUNT(*) FROM t2 WHERE b = 10`;

FLUSH STATUS;
UPDATE t2 SET d = 10 WHERE b = 10 ORDER BY a, c LIMIT 7;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';
--echo ## should be 7 (previous LIMIT)
SELECT COUNT(*) FROM t2 WHERE b = 10 AND d = 10 ORDER BY a, c;

DROP TABLE t2;

--echo #
--echo # as above + partial index, should use filesort
--echo #

CREATE TABLE t2 (a CHAR(2), b CHAR(2), c CHAR(2), d CHAR(2), INDEX (a,b(1),c));
INSERT INTO t2 SELECT i, i, i, i FROM t1;

FLUSH STATUS;
SELECT * FROM t2 WHERE b = 10 ORDER BY a, c LIMIT 5;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';

FLUSH STATUS;
UPDATE t2 SET d = 10 WHERE b = 10 ORDER BY a, c LIMIT 5;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';
SELECT * FROM t2 WHERE b = 10 ORDER BY a, c;

DROP TABLE t2;

--echo #
--echo # as above but index is without HA_READ_ORDER flag, should use filesort
--echo #

CREATE TABLE t2 (a CHAR(2), b CHAR(2), c CHAR(2), d CHAR(2), INDEX (a,b,c)) ENGINE=HEAP;
INSERT INTO t2 SELECT i, i, i, i FROM t1;

FLUSH STATUS;
SELECT * FROM t2 WHERE b = 10 ORDER BY a, c LIMIT 5;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';

FLUSH STATUS;
UPDATE t2 SET d = 10 WHERE b = 10 ORDER BY a, c LIMIT 5;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';
SELECT * FROM t2 WHERE b = 10 ORDER BY a, c;

DROP TABLE t2;

--echo #
--echo # quick select is Index Merge, should use filesort
--echo #

CREATE TABLE t2 (i INT, key1 INT, key2 INT, INDEX (key1), INDEX (key2))
ENGINE= MyISAM;
INSERT INTO t2 (key1, key2) SELECT i, i FROM t1;

FLUSH STATUS;
SELECT * FROM t2 WHERE key1 < 13 or key2 < 14 ORDER BY key1;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';
--replace_column 1 x 2 x 3 x 5 x 6 x 7 x 8 x 9 x 10 x 11 x
EXPLAIN EXTENDED SELECT * FROM t2 WHERE key1 < 13 or key2 < 14 ORDER BY key1;

FLUSH STATUS;
UPDATE t2 SET i = 123 WHERE key1 < 13 or key2 < 14 ORDER BY key1;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';
SELECT * FROM t2 WHERE key1 < 13 or key2 < 14 ORDER BY key1;
--replace_column 1 x 2 x 3 x 5 x 6 x 7 x 8 x 9 x 10 x 11 x
EXPLAIN EXTENDED SELECT * FROM t2 WHERE key1 < 13 or key2 < 14 ORDER BY key1;

DROP TABLE t2;

--echo #
--echo # reverse quick select, should not use filesort
--echo #

CREATE TABLE t2(a INT, i INT PRIMARY KEY);
INSERT INTO t2 (i) SELECT i FROM t1;

FLUSH STATUS;
SELECT * FROM t2 WHERE i > 10 AND i <= 18 ORDER BY i DESC LIMIT 1;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';

FLUSH STATUS;
UPDATE t2 SET a = 10 WHERE i > 10 AND i <= 18 ORDER BY i DESC LIMIT 1;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';
SELECT * FROM t2 WHERE i > 10 AND i <= 18 ORDER BY i;

DROP TABLE t2;

--echo #
--echo # mixed sorting direction, should use filesort
--echo #

CREATE TABLE t2 (a CHAR(2), b CHAR(2), c CHAR(2), INDEX (a, b));
INSERT INTO t2 SELECT i, i, i FROM t1;

FLUSH STATUS;
SELECT * FROM t2 ORDER BY a, b DESC LIMIT 5;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';

FLUSH STATUS;
UPDATE t2 SET c = 10 ORDER BY a, b DESC LIMIT 5;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';
SELECT * FROM t2 WHERE c = 10 ORDER BY a, b DESC;

DROP TABLE t2;

--echo #
--echo # LIMIT with no WHERE and DESC direction, should not use filesort
--echo #

CREATE TABLE t2 (a CHAR(2), b CHAR(2), c CHAR(2), INDEX (a, b));
INSERT INTO t2 (a, b) SELECT i, i FROM t1;
INSERT INTO t2 (a, b) SELECT t1.i, t1.i FROM t1, t1 x1, t1 x2;

FLUSH STATUS;
SELECT * FROM t2 ORDER BY a, b LIMIT 5;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';

FLUSH STATUS;
SELECT * FROM t2 ORDER BY a DESC, b DESC LIMIT 5;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';

FLUSH STATUS;
UPDATE t2 SET c = 10 ORDER BY a DESC, b DESC LIMIT 5;
SHOW SESSION STATUS LIKE 'Sort%';
SHOW STATUS LIKE 'Handler_read_%';
SELECT * FROM t2 WHERE c = 10 ORDER BY a DESC, b DESC;

DROP TABLE t1, t2;


--echo #
--echo # Bug #53742: UPDATEs have no effect after applying patch for bug 36569
--echo #

--disable_warnings
CREATE TABLE t1 (
  pk INT NOT NULL AUTO_INCREMENT,
  c1_idx CHAR(1) DEFAULT 'y',
  c2 INT,
  PRIMARY KEY (pk),
  INDEX c1_idx (c1_idx)
) ENGINE=InnoDB;
--enable_warnings

INSERT INTO t1 VALUES (), (), (), ();

SELECT * FROM t1 WHERE c1_idx = 'y' ORDER BY pk DESC LIMIT 2;
UPDATE t1 SET c2 = 0 WHERE c1_idx = 'y' ORDER BY pk DESC LIMIT 2;
SELECT * FROM t1 WHERE c1_idx = 'y' ORDER BY pk DESC LIMIT 2;
SELECT * FROM t1 WHERE c1_idx = 'y' ORDER BY pk DESC;

DELETE FROM t1 WHERE c1_idx = 'y' ORDER BY pk DESC LIMIT 2;
SELECT * FROM t1 WHERE c1_idx = 'y' ORDER BY pk DESC;

DROP TABLE t1;
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