CREATE TABLE t1 ( a INT, b INT );
INSERT INTO t1 VALUES (1, 1);
CREATE VIEW v1 AS SELECT * FROM t1;
CREATE TABLE t2 ( a INT );
INSERT INTO t2 VALUES (1);
#
# The new non-standard keywords should still be useable as identifiers.
# The standard ones should not.
#
CREATE TABLE t ( of INT );
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'of INT )' at line 1
CREATE TABLE t0 ( skip INT, locked INT, nowait INT );
DROP TABLE t0;
CREATE PROCEDURE p() BEGIN of: LOOP LEAVE of; END LOOP of; END|
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'of: LOOP LEAVE of; END LOOP of; END' at line 1
CREATE PROCEDURE p1() BEGIN skip: LOOP LEAVE skip; END LOOP skip; END|
CREATE PROCEDURE p2() BEGIN locked: LOOP LEAVE locked; END LOOP locked; END|
CREATE PROCEDURE p3() BEGIN nowait: LOOP LEAVE nowait; END LOOP nowait; END|
DROP PROCEDURE p1;
DROP PROCEDURE p2;
DROP PROCEDURE p3;
#
#  Test of the syntax.
#
#
#  UPDATE ...
#
SELECT * FROM t1 FOR UPDATE;
a	b
1	1
SELECT * FROM t1 FOR UPDATE NOWAIT;
a	b
1	1
SELECT * FROM t1 FOR UPDATE SKIP LOCKED;
a	b
1	1
#
#  SHARE ...
#
SELECT * FROM t1 FOR SHARE;
a	b
1	1
SELECT * FROM t1 FOR SHARE NOWAIT;
a	b
1	1
SELECT * FROM t1 FOR SHARE SKIP LOCKED;
a	b
1	1
#
#  OF ...
#
SELECT * FROM t1 FOR SHARE OF t1;
a	b
1	1
SELECT * FROM t1 FOR SHARE OF t1 NOWAIT;
a	b
1	1
SELECT * FROM t1 FOR SHARE OF t1 SKIP LOCKED;
a	b
1	1
SELECT * FROM t1 FOR UPDATE OF t1;
a	b
1	1
SELECT * FROM t1 FOR UPDATE OF t1 NOWAIT;
a	b
1	1
SELECT * FROM t1 FOR UPDATE OF t1 SKIP LOCKED;
a	b
1	1
#
#  OF ...
#
SELECT * FROM t1, t2 FOR SHARE OF t1, t2;
a	b	a
1	1	1
SELECT * FROM t1, t2 FOR SHARE OF t1, t2 NOWAIT;
a	b	a
1	1	1
SELECT * FROM t1, t2 FOR SHARE OF t1, t2 SKIP LOCKED;
a	b	a
1	1	1
SELECT * FROM t1, t2 FOR UPDATE OF t1, t2;
a	b	a
1	1	1
SELECT * FROM t1, t2 FOR UPDATE OF t1, t2 NOWAIT;
a	b	a
1	1	1
SELECT * FROM t1, t2 FOR UPDATE OF t1, t2 SKIP LOCKED;
a	b	a
1	1	1
#
#  Dual locking clauses
#
SELECT * FROM t1 JOIN t2 FOR UPDATE;
a	b	a
1	1	1
SELECT * FROM t1 JOIN t2 FOR SHARE;
a	b	a
1	1	1
SELECT * FROM t1 STRAIGHT_JOIN t2 FOR UPDATE;
a	b	a
1	1	1
SELECT * FROM t1 STRAIGHT_JOIN t2 AS t12 FOR UPDATE OF t12;
a	b	a
1	1	1
SELECT * FROM t1 STRAIGHT_JOIN t2 FOR SHARE;
a	b	a
1	1	1
SELECT * FROM t1 STRAIGHT_JOIN t2 FOR SHARE OF t1;
a	b	a
1	1	1
SELECT * FROM t1 STRAIGHT_JOIN t2 FOR SHARE OF t1 FOR UPDATE OF t2;
a	b	a
1	1	1
SELECT * FROM t1 STRAIGHT_JOIN t2 AS t12 FOR UPDATE OF t12, t1 ;
a	b	a
1	1	1
SELECT * FROM t1 JOIN t2 FOR SHARE OF t1 FOR UPDATE OF t2;
a	b	a
1	1	1
SELECT * FROM t1 NATURAL JOIN t2 FOR SHARE OF t1 FOR UPDATE OF t2;
a	b
1	1
SELECT * FROM t1, t2 FOR SHARE OF t1 FOR UPDATE OF t2;
a	b	a
1	1	1
SELECT * FROM t1, t2 FOR SHARE OF t1 FOR SHARE OF t2;
a	b	a
1	1	1
SELECT * FROM t1 FOR SHARE OF t1 NOWAIT;
a	b
1	1
SELECT * FROM t1 FOR SHARE OF t1 SKIP LOCKED;
a	b
1	1
SELECT * FROM t1, t2 FOR SHARE OF t1 NOWAIT FOR SHARE OF t2 NOWAIT;
a	b	a
1	1	1
#
# Derived tables and views.
#
SELECT 1 FROM ( SELECT 1 ) AS t2 FOR UPDATE;
1
1
SELECT 1 FROM v1 FOR UPDATE;
1
1
#
#  Test of syntax errors.
#
SELECT * FROM t1 FOR SHARE WAIT WAIT;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'WAIT WAIT' at line 1
SELECT * FROM t1 FOR SHARE WAIT NOWAIT;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'WAIT NOWAIT' at line 1
SELECT * FROM t1 FOR SHARE WAIT SKIP LOCKED;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'WAIT SKIP LOCKED' at line 1
SELECT 1 FOR UPDATE UNION SELECT 2;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'UNION SELECT 2' at line 1
SELECT 1 LOCK IN SHARE MODE UNION SELECT 2;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'UNION SELECT 2' at line 1
SELECT 1 FOR SHARE UNION SELECT 2;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'UNION SELECT 2' at line 1
SELECT * FROM t1 LEFT JOIN t2 FOR UPDATE;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'FOR UPDATE' at line 1
SELECT * FROM t1 LEFT JOIN t2 FOR SHARE;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'FOR SHARE' at line 1
SELECT * FROM t1 LEFT JOIN t2 FOR SHARE OF t1 FOR UPDATE OF t2;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'FOR SHARE OF t1 FOR UPDATE OF t2' at line 1
SELECT * FROM t1 RIGHT JOIN t2 FOR SHARE OF t1 FOR UPDATE OF t2;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'FOR SHARE OF t1 FOR UPDATE OF t2' at line 1
#
# Test of deprecation warnings.
#
CREATE PROCEDURE p1()
BEGIN
DECLARE c CURSOR FOR SELECT a FROM t1 FOR UPDATE;
END|
CREATE PROCEDURE p2()
BEGIN
DECLARE c CURSOR FOR SELECT a FROM t1 LOCK IN SHARE MODE;
END|
DROP PROCEDURE p1;
DROP PROCEDURE p2;
SELECT MIN(a) FROM t1 FOR UPDATE;
MIN(a)
1
SELECT MAX(a) FROM t1 FOR UPDATE;
MAX(a)
1
SELECT SUM(a) FROM t1 FOR UPDATE;
SUM(a)
1
SELECT DISTINCT * FROM t1 FOR UPDATE;
a	b
1	1
SELECT MIN(b) FROM t1 GROUP BY a FOR UPDATE;
MIN(b)
1
SELECT MIN(a) FROM t1 LOCK IN SHARE MODE;
MIN(a)
1
SELECT MAX(a) FROM t1 LOCK IN SHARE MODE;
MAX(a)
1
SELECT SUM(a) FROM t1 LOCK IN SHARE MODE;
SUM(a)
1
SELECT DISTINCT * FROM t1 LOCK IN SHARE MODE;
a	b
1	1
SELECT MIN(b) FROM t1 GROUP BY a LOCK IN SHARE MODE;
MIN(b)
1
SELECT 1 UNION SELECT 2 FOR UPDATE;
1
1
2
SELECT 1 UNION SELECT 2 LOCK IN SHARE MODE;
1
1
2
#
# Test of error messages.
#
SELECT * FROM t1 FOR SHARE OF t2;
ERROR HY000: Unresolved table name `t2` in locking clause.
SELECT * FROM t1 t1a FOR SHARE OF t1;
ERROR HY000: Unresolved table name `t1` in locking clause.
SELECT * FROM t1 t1a, t2 t2a FOR SHARE OF t1a, t2;
ERROR HY000: Unresolved table name `t2` in locking clause.
SELECT * FROM t1 STRAIGHT JOIN t2 FOR SHARE OF t1;
ERROR HY000: Unresolved table name `t1` in locking clause.
SELECT * FROM t1 STRAIGHT JOIN t2 FOR SHARE OF t1 FOR UPDATE OF t2;
ERROR HY000: Unresolved table name `t1` in locking clause.
SELECT * FROM t1 STRAIGHT JOIN t2 AS t12 FOR UPDATE OF t12, t1 ;
ERROR HY000: Unresolved table name `t1` in locking clause.
SELECT * FROM no_such_database.t1 FOR SHARE OF no_such_database.t1;
ERROR 42000: Unknown database 'no_such_database'
SELECT * FROM no_such_database.t1 t1a FOR SHARE OF no_such_database.t1;
ERROR HY000: Unresolved table name `no_such_database`.`t1` in locking clause.
SELECT * FROM no_such_database.t1 t1a FOR SHARE OF t1a;
ERROR 42000: Unknown database 'no_such_database'
SELECT * FROM no_such_database.t1 FOR SHARE OF t1;
ERROR 42000: Unknown database 'no_such_database'
SELECT * FROM t1 FOR SHARE OF no_such_database.t1;
ERROR HY000: Unresolved table name `no_such_database`.`t1` in locking clause.
CREATE DATABASE db1;
CREATE TABLE db1.t1 ( a INT, b INT );
INSERT INTO t1 VALUES (10, 10);
SELECT * FROM t1 FOR SHARE OF db1.t1;
ERROR HY000: Unresolved table name `db1`.`t1` in locking clause.
SELECT * FROM t1 FOR UPDATE OF t1 FOR SHARE OF t1;
ERROR HY000: Table `t1` appears in multiple locking clauses.
SELECT * FROM t1, t2 FOR UPDATE OF t2 FOR SHARE OF t1 FOR UPDATE OF t2;
ERROR HY000: Table `t2` appears in multiple locking clauses.
SELECT * FROM t1, t2 FOR UPDATE FOR SHARE OF t1;
ERROR HY000: Table `t1` appears in multiple locking clauses.
SELECT * FROM t1, t2 FOR UPDATE FOR SHARE OF t2;
ERROR HY000: Table `t2` appears in multiple locking clauses.
SELECT * FROM t1, t2 FOR SHARE FOR UPDATE OF t1;
ERROR HY000: Table `t1` appears in multiple locking clauses.
SELECT * FROM t1, t2 FOR SHARE FOR UPDATE OF t2;
ERROR HY000: Table `t2` appears in multiple locking clauses.
SELECT * FROM t1, t2 FOR UPDATE OF t1 FOR SHARE;
ERROR HY000: Table t1 appears in multiple locking clauses.
SELECT * FROM t1, t2 FOR UPDATE OF t2 FOR SHARE;
ERROR HY000: Table t2 appears in multiple locking clauses.
SELECT MIN(a) FROM t1 FOR UPDATE SKIP LOCKED;
MIN(a)
1
SELECT MAX(a) FROM t1 FOR UPDATE SKIP LOCKED;
MAX(a)
10
SELECT SUM(a) FROM t1 FOR UPDATE SKIP LOCKED;
SUM(a)
11
SELECT MIN(a) FROM t1 FOR UPDATE NOWAIT;
MIN(a)
1
SELECT MAX(a) FROM t1 FOR UPDATE NOWAIT;
MAX(a)
10
SELECT SUM(a) FROM t1 FOR UPDATE NOWAIT;
SUM(a)
11
SELECT DISTINCT * FROM t1 FOR UPDATE SKIP LOCKED;
a	b
1	1
10	10
SELECT DISTINCT * FROM t1 FOR UPDATE NOWAIT;
a	b
1	1
10	10
SELECT MIN(b) FROM t1 GROUP BY a FOR UPDATE OF t1;
MIN(b)
1
10
SELECT MIN(b) FROM t1 GROUP BY a FOR UPDATE SKIP LOCKED;
MIN(b)
1
10
SELECT MIN(b) FROM t1 GROUP BY a FOR SHARE;
MIN(b)
1
10
#
# Regression testing.
#
DROP DATABASE db1;
DROP VIEW v1;
DROP TABLE t1, t2;
#
# Bug#25972285: UNCLEAR ERROR MESSAGE FOR NOWAIT
#
CREATE USER test@localhost;
GRANT CREATE, SELECT, UPDATE on *.* to test@localhost;
CREATE USER test2@localhost;
GRANT CREATE, SELECT, UPDATE on *.* to test2@localhost;
CREATE TABLE t1 ( a INT ) ENGINE=InnoDB;
INSERT INTO t1 VALUES ( 1 );
BEGIN;
SELECT * FROM t1 WHERE a = 2 FOR UPDATE ;
a
BEGIN;
SELECT * FROM t1 FOR UPDATE NOWAIT;
ERROR HY000: Statement aborted because lock(s) could not be acquired immediately and NOWAIT is set.
COMMIT;
DROP TABLE t1;
DROP USER test@localhost;
DROP USER test2@localhost;