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af418bb9ef
This also means SKIP LOCKED is compatible with the NOWAIT/ WAIT n syntax consisten with the MySQL-8.0 implementation.
164 lines
6.4 KiB
Text
164 lines
6.4 KiB
Text
CREATE TABLE t1 ( a INT, b INT );
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INSERT INTO t1 VALUES (1, 1);
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CREATE VIEW v1 AS SELECT * FROM t1;
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CREATE TABLE t2 ( a INT );
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INSERT INTO t2 VALUES (1);
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#
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# The new non-standard keywords should still be useable as identifiers.
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# The standard ones should not.
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#
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CREATE TABLE t ( of INT );
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CREATE TABLE t0 ( skip INT, locked INT, nowait INT );
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DROP TABLE t, t0;
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CREATE PROCEDURE p0() BEGIN of: LOOP LEAVE of; END LOOP of; END|
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CREATE PROCEDURE p1() BEGIN skip: LOOP LEAVE skip; END LOOP skip; END|
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CREATE PROCEDURE p2() BEGIN locked: LOOP LEAVE locked; END LOOP locked; END|
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CREATE PROCEDURE p3() BEGIN nowait: LOOP LEAVE nowait; END LOOP nowait; END|
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DROP PROCEDURE p0;
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DROP PROCEDURE p1;
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DROP PROCEDURE p2;
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DROP PROCEDURE p3;
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#
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# Test of the syntax.
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#
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#
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# UPDATE ...
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#
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SELECT * FROM t1 FOR UPDATE;
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a b
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1 1
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SELECT * FROM t1 FOR UPDATE NOWAIT;
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a b
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1 1
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SELECT * FROM t1 FOR UPDATE SKIP LOCKED;
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a b
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1 1
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#
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# Dual locking clauses
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#
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SELECT * FROM t1 JOIN t2 FOR UPDATE;
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a b a
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1 1 1
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SELECT * FROM t1 STRAIGHT_JOIN t2 FOR UPDATE;
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a b a
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1 1 1
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#
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# Derived tables and views.
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#
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SELECT 1 FROM ( SELECT 1 ) AS t2 FOR UPDATE;
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1
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1
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SELECT 1 FROM v1 FOR UPDATE;
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1
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1
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#
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# Test of syntax errors.
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#
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SELECT * FROM t1 FOR SHARE WAIT WAIT;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'SHARE WAIT WAIT' at line 1
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SELECT * FROM t1 FOR SHARE WAIT NOWAIT;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'SHARE WAIT NOWAIT' at line 1
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SELECT * FROM t1 FOR SHARE WAIT SKIP LOCKED;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'SHARE WAIT SKIP LOCKED' at line 1
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SELECT * FROM t1 FOR SHARE WAIT 3 SKIP LOCKED;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'SHARE WAIT 3 SKIP LOCKED' at line 1
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SELECT * FROM t1 FOR SHARE NOWAIT SKIP LOCKED;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'SHARE NOWAIT SKIP LOCKED' at line 1
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SELECT 1 FOR UPDATE UNION SELECT 2;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 2' at line 1
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SELECT 1 LOCK IN SHARE MODE UNION SELECT 2;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 2' at line 1
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SELECT 1 FOR SHARE UNION SELECT 2;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'SHARE UNION SELECT 2' at line 1
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SELECT * FROM t1 LEFT JOIN t2 FOR UPDATE;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'FOR UPDATE' at line 1
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SELECT * FROM t1 LEFT JOIN t2 FOR SHARE;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'FOR SHARE' at line 1
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SELECT * FROM t1 LEFT JOIN t2 FOR SHARE OF t1 FOR UPDATE OF t2;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'FOR SHARE OF t1 FOR UPDATE OF t2' at line 1
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SELECT * FROM t1 RIGHT JOIN t2 FOR SHARE OF t1 FOR UPDATE OF t2;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'FOR SHARE OF t1 FOR UPDATE OF t2' at line 1
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#
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# Test of error messages.
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#
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CREATE DATABASE db1;
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CREATE TABLE db1.t1 ( a INT, b INT );
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INSERT INTO t1 VALUES (10, 10);
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SELECT MIN(a) FROM t1 FOR UPDATE SKIP LOCKED;
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MIN(a)
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1
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SELECT MAX(a) FROM t1 FOR UPDATE SKIP LOCKED;
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MAX(a)
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10
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SELECT SUM(a) FROM t1 FOR UPDATE SKIP LOCKED;
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SUM(a)
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11
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SELECT MIN(a) FROM t1 FOR UPDATE NOWAIT;
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MIN(a)
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1
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SELECT MAX(a) FROM t1 FOR UPDATE NOWAIT;
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MAX(a)
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10
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SELECT SUM(a) FROM t1 FOR UPDATE NOWAIT;
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SUM(a)
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11
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SELECT DISTINCT * FROM t1 FOR UPDATE SKIP LOCKED;
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a b
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1 1
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10 10
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SELECT DISTINCT * FROM t1 FOR UPDATE NOWAIT;
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a b
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1 1
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10 10
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SELECT MIN(b) FROM t1 GROUP BY a FOR UPDATE SKIP LOCKED;
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MIN(b)
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1
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10
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#
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# Regression testing.
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#
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DROP DATABASE db1;
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DROP VIEW v1;
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DROP TABLE t1, t2;
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#
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# Bug#25972285: UNCLEAR ERROR MESSAGE FOR NOWAIT
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#
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CREATE USER test@localhost;
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GRANT CREATE, SELECT, UPDATE on *.* to test@localhost;
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CREATE USER test2@localhost;
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GRANT CREATE, SELECT, UPDATE on *.* to test2@localhost;
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CREATE TABLE t1 ( a INT ) ENGINE=InnoDB;
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INSERT INTO t1 VALUES ( 1 );
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connect con1, localhost, test, , test;
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BEGIN;
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SELECT * FROM t1 WHERE a = 2 FOR UPDATE ;
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a
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connect con2,localhost,test2,,test;
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BEGIN;
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SELECT * FROM t1 FOR UPDATE NOWAIT;
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ERROR HY000: Lock wait timeout exceeded; try restarting transaction
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COMMIT;
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connection default;
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disconnect con1;
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disconnect con2;
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DROP TABLE t1;
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DROP USER test@localhost;
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DROP USER test2@localhost;
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#
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# Bug#30237291: "SELECT ... INTO VAR_NAME FOR UPDATE" NOT WORKING IN
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# MYSQL 8
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#
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SELECT 1 FROM DUAL LIMIT 1 INTO @var FOR UPDATE;
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Warnings:
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Warning 1287 '<select expression> INTO <destination>;' is deprecated and will be removed in a future release. Please use 'SELECT <select list> INTO <destination> FROM...' instead
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SELECT 1 FROM DUAL LIMIT 1 FOR UPDATE INTO @var;
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Warnings:
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Warning 1287 '<select expression> INTO <destination>;' is deprecated and will be removed in a future release. Please use 'SELECT <select list> INTO <destination> FROM...' instead
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SELECT 1 FROM DUAL LIMIT 1 INTO @var FOR UPDATE INTO @var;
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INTO @var' at line 1
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SELECT 1 UNION SELECT 1 FOR UPDATE INTO @var;
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Warnings:
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Warning 1287 '<select expression> INTO <destination>;' is deprecated and will be removed in a future release. Please use 'SELECT <select list> INTO <destination> FROM...' instead
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SELECT 1 UNION SELECT 1 INTO @var FOR UPDATE;
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Warnings:
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Warning 1287 '<select expression> INTO <destination>;' is deprecated and will be removed in a future release. Please use 'SELECT <select list> INTO <destination> FROM...' instead
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