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| Current File : //compat/linux/proc/self/root/home/usr.opt/mysql57/mysql-test/t/user_lock.test |
--echo #
--echo # Coverage for GET_LOCK, RELEASE_LOCK, RELEASE_ALL_LOCKS,
--echo # IS_USED_LOCK and IS_FREE_LOCK functions.
--echo #
--echo # Tests for WL#1159 "Allow multiple locks in GET_LOCK()".
--echo #
# This test uses send/reap.
--source include/not_embedded.inc
connection default;
--enable_connect_log
--echo # FT-1: The current connection has no user-level lock aquired at all.
--echo # There is no parallel connection holding the lock 'test'.
--echo # FT-1.1: IS_USED_LOCK returns NULL if the lock is unused.
SELECT IS_USED_LOCK('test') IS NULL AS expect_1;
--echo # FT-1.2: IS_FREE_LOCK returns 1 if the lock is unused.
SELECT IS_FREE_LOCK('test') = 1 AS expect_1;
--echo # FT-1.3: RELEASE_LOCK returns NULL when none of the existing connections
--echo # holds the lock 'test'.
SELECT RELEASE_LOCK('test') IS NULL AS expect_1;
--echo # FT-1.4: RELEASE_ALL_LOCKS returns the number of own locks freed.
--echo # This is 0 because the connection had no locks acquired.
SELECT RELEASE_ALL_LOCKS() = 0 AS expect_1;
--echo # FT-2: The current connection has success in aquiring a user level lock.
--echo # FT-2.1: GET_LOCK returns 1 if it manages to acquire a lock.
SELECT GET_LOCK('test', 0) = 1 AS expect_1;
--echo # FT-2.2: IS_USED_LOCK returns our connection id because its our lock.
SELECT IS_USED_LOCK('test') = CONNECTION_ID() AS expect_1;
--echo # FT-2.3: IS_FREE_LOCK returns 0 because the lock is held by our connection.
SELECT IS_FREE_LOCK('test') = 0 AS expect_1;
let $default_id= `SELECT CONNECTION_ID()`;
connect (con1,localhost,root,,);
connection con1;
let $con1_id= `SELECT CONNECTION_ID()`;
--echo # FT-3: Another connection holds a user-level lock.
--echo # FT-3.1: IS_USED_LOCK returns the id of the other connection default
--echo # which holds that lock. The result fits to FT-2.2.
--replace_result $default_id <default_id>
eval SET @aux = $default_id;
SELECT IS_USED_LOCK('test') = @aux AS expect_1;
--echo # FT-3.2: IS_FREE_LOCK returns 0 because the lock is held by the other
--echo # connection default.
SELECT IS_FREE_LOCK('test') = 0 AS expect_1;
--echo # FT-3.3: GET_LOCK returns 0 if it can't acquire a lock (wait timeout).
SELECT GET_LOCK('test', 0) = 0 expect_1;
--echo # FT-3.4: RELEASE_LOCK returns 0 if the lock belongs to another connection.
SELECT RELEASE_LOCK('test') = 0 AS expect_1;
--echo # FT-3.5: RELEASE_ALL_LOCKS returns the number of own locks freed.
--echo # This is 0 because the connection had no locks acquired and
--echo # we also cannot free locks held by others.
SELECT RELEASE_ALL_LOCKS() = 0 AS expect_1;
connection default;
--echo # FT-4.1: RELEASE_LOCK returns 1 if it successfully releases a lock.
SELECT RELEASE_LOCK('test') = 1 AS expect_1;
--echo # FT-4.2: RELEASE_LOCK returns NULL if it doesn't release a lock and
--echo # and there is no such lock. It also does not matter that we
--echo # held that lock somewhere before.
SELECT RELEASE_LOCK('test') IS NULL;
--echo # FT-5: A connection can hold multiple user-level locks.
--echo # FT-5.1: Several statements aquiring one lock per statement.
SELECT GET_LOCK('test1',0);
SELECT GET_LOCK('test2',0);
--echo # The connection holds two locks.
SELECT IS_USED_LOCK('test1') = CONNECTION_ID()
AND IS_USED_LOCK('test2') = CONNECTION_ID() AS expect_1;
--echo # FT-5.2: RELEASE_LOCK() frees the assigned user level lock only.
SELECT RELEASE_LOCK('test1') = 1 AS expect_1;
SELECT IS_FREE_LOCK('test1') = 1 AS expect_1;
SELECT IS_FREE_LOCK('test2') = 0 AS expect_1;
SELECT RELEASE_LOCK('test2') = 1 AS expect_1;
--echo # FT-5.3: RELEASE_ALL_LOCKS frees all locks all at once
--echo # and returns the number of locks freed.
SELECT GET_LOCK('test1',0);
SELECT GET_LOCK('test2',0);
SELECT RELEASE_ALL_LOCKS() = 2 AS expect_1;
SELECT IS_FREE_LOCK('test1') AND IS_FREE_LOCK('test2') AS expect_1;
--echo # FT-5.4: One statement aquiring more than one lock works the same way.
--echo # FT-5.4.1: More than one result expression with GET_LOCK, one row.
SELECT GET_LOCK('test1',0), GET_LOCK('test2',0);
--echo # The connections holds two locks.
SELECT IS_USED_LOCK('test1') = CONNECTION_ID()
AND IS_USED_LOCK('test2') = CONNECTION_ID() AS expect_1;
SELECT RELEASE_ALL_LOCKS() = 2 AS expect_1;
SELECT IS_USED_LOCK('test1') IS NULL AND IS_USED_LOCK('test2') IS NULL AS expect_1;
--echo # FT-5.4.2: More than one time GET_LOCK somewhere, one row.
SELECT GET_LOCK('test1',0) FROM (SELECT 1 AS col1) AS my_tab
WHERE GET_LOCK('test2',0) = 1;
SELECT IS_USED_LOCK('test1') = CONNECTION_ID()
AND IS_USED_LOCK('test2') = CONNECTION_ID() AS expect_1;
SELECT RELEASE_ALL_LOCKS() = 2 AS expect_1;
SELECT IS_USED_LOCK('test1') IS NULL AND IS_USED_LOCK('test2') IS NULL AS expect_1;
--echo # FT-5.4.3: One result expression with GET_LOCK, more than one result row.
SELECT GET_LOCK(col1,0) FROM (SELECT 'test1' AS col1 UNION SELECT 'test2') AS my_tab;
SELECT IS_USED_LOCK('test1') = CONNECTION_ID()
AND IS_USED_LOCK('test2') = CONNECTION_ID() AS expect_1;
SELECT RELEASE_ALL_LOCKS() = 2 AS expect_1;
SELECT IS_USED_LOCK('test1') IS NULL AND IS_USED_LOCK('test2') IS NULL AS expect_1;
--echo # FT-6: A connection can hold multiple user-level locks with same name.
--echo # FT-6.1: GET_LOCK() and RELEASE_LOCK() work recursively.
SELECT GET_LOCK('test', 0);
SELECT GET_LOCK('test', 0);
SELECT GET_LOCK('test', 0);
SELECT RELEASE_LOCK('test');
SELECT RELEASE_LOCK('test');
SELECT RELEASE_LOCK('test');
--echo # Once the last instance of the lock is released,
--echo # the next call returns NULL.
SELECT RELEASE_LOCK('test') IS NULL AS expect_1;
--echo # FT-6.2: Counting in RELEASE_ALL_LOCKS() for recursive locks is correct.
SELECT GET_LOCK('test', 0), GET_LOCK('test', 0);
SELECT RELEASE_ALL_LOCKS() = 2 AS expect_1;
--echo # FT-7: Check a statement with GET_LOCK() getting killed.
--echo # FT-7.1: KILL arrives when waiting for the user lock
--echo # The statement must return ER_QUERY_INTERRUPTED.
SELECT GET_LOCK('test', 0);
connection con1;
let $stmt= SELECT GET_LOCK('test', 7200);
--echo # Send statement and reap result later.
--send
eval $stmt;
connection default;
let $wait_condition= SELECT COUNT(*) > 0 FROM information_schema.processlist
WHERE info LIKE 'select%' AND state='User lock';
source include/wait_condition.inc;
--replace_result $con1_id <con1_id>
eval SET @aux = $con1_id;
KILL QUERY @aux;
connection con1;
--echo # Reap result of "$stmt".
--error ER_QUERY_INTERRUPTED
reap;
--echo # Check that Connection con1 sees the right state.
SELECT IS_FREE_LOCK('test') = 0 AS expect_1;
SELECT IS_USED_LOCK('test') <> CONNECTION_ID() AS expect_1;
connection default;
SELECT RELEASE_LOCK('test') = 1 AS expect_1;
--echo # FT-7.2: The lock is not held by some other connection.
--echo # KILL arrives during the SLEEP phase after the lock is taken.
connection con1;
let $stmt= SELECT GET_LOCK('test', 7200), SLEEP(10);
--echo # Send statement and reap result later.
--send
eval $stmt;
connection default;
let $wait_condition= SELECT COUNT(*) > 0 FROM information_schema.processlist
WHERE info LIKE 'select%' AND state='User sleep';
source include/wait_condition.inc;
--replace_result $con1_id <con1_id>
eval SET @aux = $con1_id;
eval KILL QUERY @aux;
--echo # Connection con1 has got the lock.
SELECT IS_FREE_LOCK('test') = 0 AS expect_1;
connection con1;
--echo # Reap result of "$stmt".
--echo # We intentionally do not print the result.
--echo # If a statement killed in the 'user sleep' phase harvests finally
--echo # success or ER_QUERY_INTERRUPTED is NOT in the scope of current check.
--disable_result_log
--disable_abort_on_error
reap;
--enable_abort_on_error
--enable_result_log
--echo # The essential is that the connection con1 has got that lock.
SELECT IS_FREE_LOCK('test') = 0 AS expect_1;
SELECT IS_USED_LOCK('test') = CONNECTION_ID() AS expect_1;
connection default;
SELECT IS_FREE_LOCK('test') = 0 AS expect_1;
connection con1;
SELECT RELEASE_LOCK('test') = 1 AS expect_1;
--echo # FT-8: Check that user locks disappear if the session is killed.
connection con1;
SELECT GET_LOCK('test1', 0);
SELECT GET_LOCK('test1', 0);
let $con1_id= `SELECT CONNECTION_ID()`;
connection default;
SELECT IS_FREE_LOCK('test1') = 0 AS expect_1;
--replace_result $con1_id <con1_id>
eval SET @aux = $con1_id;
eval KILL @aux;
let $wait_condition= SELECT COUNT(*) = 0 FROM information_schema.processlist
WHERE id = $con1_id;
source include/wait_condition.inc;
SELECT IS_FREE_LOCK('test1') = 1 AS expect_1;
connection con1;
disconnect con1;
# Just reestablish the connection con1.
connect (con1,localhost,root,,);
--echo # FT-9: Check that Deadlocks are detected e.g. in case of a mutual wait.
connection default;
SELECT GET_LOCK('test1', 0);
connection con1;
SELECT GET_LOCK('test2', 0);
let $stmt= SELECT GET_LOCK('test1', 7200);
--echo # Send statement and reap result later.
--send
eval $stmt;
connection default;
let $wait_condition= SELECT COUNT(*) > 0 FROM information_schema.processlist
WHERE info LIKE 'select%' AND state='User lock';
source include/wait_condition.inc;
--error ER_USER_LOCK_DEADLOCK
SELECT GET_LOCK('test2', 7200);
SELECT RELEASE_LOCK('test1');
connection con1;
--echo # Reap result of "$stmt".
reap;
--echo # Two RELEASE_LOCK in one statement must work too.
SELECT RELEASE_LOCK('test2') + RELEASE_LOCK('test1') = 2 AS expect_1;
--echo # FT-10: Non user lock related locking/unlocking does not free
--echo # user locks.
--echo # FT-10.1: LOCK/UNLOCK TABLES
connection default;
CREATE TABLE t1 (id INT);
SELECT GET_LOCK('test1', 0);
LOCK TABLE t1 WRITE;
SELECT GET_LOCK('test2', 0);
UNLOCK TABLES;
SELECT RELEASE_ALL_LOCKS() = 2 AS expect_1;
--echo # FT-10.2: GLOBAL READ LOCK
SELECT GET_LOCK('test1', 0);
FLUSH TABLES WITH READ LOCK;
SELECT GET_LOCK('test2', 0);
UNLOCK TABLES;
SELECT (RELEASE_LOCK('test1') = 1) AND (RELEASE_LOCK('test3') IS NULL)
AND (RELEASE_LOCK('test2') = 1) AS expect_1;
--echo # FT-10.3: BEGIN/COMMIT/ROLLBACK don't unlock user locks.
DELETE FROM t1;
BEGIN;
INSERT INTO t1 SET id = 1;
SELECT GET_LOCK('test1', 0);
COMMIT;
BEGIN;
INSERT INTO t1 SET id = 2;
SELECT GET_LOCK('test2', 0);
ROLLBACK;
SELECT RELEASE_ALL_LOCKS() = 2 AS expect_1;
SELECT id FROM t1 ORDER BY id;
DELETE FROM t1;
--echo # FT-11: Deadlocks between user locks and other metadata locks
--echo # are correctly detected.
--echo #
--echo # FT-11.1: Waits for user-level locks are preferred as victim over DDL.
--echo # Without any user locks : "default" waits till "con1" COMMITs.
SELECT GET_LOCK('test', 0);
connection con1;
BEGIN;
INSERT INTO t1 VALUES (1);
let $stmt= SELECT GET_LOCK('test', 7200);
--echo # Send statement and reap result later.
--send
eval $stmt;
connection default;
let $wait_condition= SELECT COUNT(*) > 0 FROM information_schema.processlist
WHERE info LIKE 'select%' AND state = 'User lock';
source include/wait_condition.inc;
let $stmt1= RENAME TABLE t1 TO t2;
--echo # Send statement and reap result later.
--send
eval $stmt1;
connection con1;
--echo # Reap result of "$stmt".
--error ER_USER_LOCK_DEADLOCK
reap;
--echo # When user-level lock wait is aborted due to deadlock the
--echo # transaction is not rolled back.
let $wait_condition= SELECT COUNT(*) > 0 FROM information_schema.processlist
WHERE info LIKE 'rename%' AND state = 'Waiting for table metadata lock';
source include/wait_condition.inc;
COMMIT;
connection default;
--echo # Reap result of "$stmt1".
reap;
RENAME TABLE t2 TO t1;
SELECT RELEASE_LOCK('test');
connection con1;
--echo # The row inserted in the committed transaction must exist.
SELECT COUNT(*) = 1 AS expect_1 FROM t1 WHERE id = 1;
connection default;
--echo # FT-11.2: Waits for DML locks are preferred as victim over waits for
--echo # user-level locks.
--echo # Without any user locks : "default" waits till MDL lock timout kicks in.
SELECT GET_LOCK('test', 0);
connection con1;
LOCK TABLE t1 WRITE;
let $stmt= SELECT GET_LOCK('test', 7200);
--echo # Send statement and reap result later.
--send
eval $stmt;
connection default;
let $wait_condition= SELECT COUNT(*) > 0 FROM information_schema.processlist
WHERE info LIKE 'select%' AND state = 'User lock';
source include/wait_condition.inc;
--error ER_LOCK_DEADLOCK
SELECT COUNT(*) FROM t1;
--echo # User-level lock is not released even though transaction/statement
--echo # is rolled back in this case.
SELECT RELEASE_LOCK('test') = 1 AS expect_1;
connection con1;
--echo # Reap result of "$stmt".
reap;
SELECT RELEASE_LOCK('test');
UNLOCK TABLES;
--echo # FT-12: GET_LOCK in some scenarios of interest.
--echo # The user-level lock related functions work well.
--echo # The "main" property of interest seen is:
--echo # Some failing statement might have taken user-level locks
--echo # and these locks will not get freed because the statement
--echo # failed.
--echo # FT-12.1: GET_LOCK within some TRIGGER, User locks stay recursive
connection default;
DELETE FROM t1;
--echo # Warning: The trigger definition used is "evil" and not for use
--echo # some production environment.
CREATE TRIGGER trig_t1_ins BEFORE INSERT ON t1 FOR EACH ROW
SET @aux = GET_LOCK(new.id,7200);
SELECT GET_LOCK(CAST(2 AS CHAR),0);
--echo # Success == No collision with own user lock.
--echo # Get a second with same name and two with other names.
INSERT INTO t1 VALUES(1),(2),(3);
SELECT RELEASE_LOCK(1) = 1 AS expect_1;
SELECT RELEASE_LOCK(2) = 1 AS expect_1;
--echo # Get again 1.
SELECT RELEASE_LOCK(2) = 1 AS expect_1;
SELECT RELEASE_LOCK(3) = 1 AS expect_1;
# Release what remains: 0
SELECT RELEASE_ALL_LOCKS() = 0 AS expect_1;
SELECT COUNT(*) FROM t1;
--echo # FT-12.2: GET_LOCK in an INSERT TRIGGER loses against a MDL lock request.
connection default;
DELETE FROM t1;
SELECT GET_LOCK(2,0);
connection con1;
let $stmt= INSERT INTO t1 VALUES(1),(2),(3);
--echo # Send statement and reap result later.
--send
eval $stmt;
connection default;
let $wait_condition= SELECT COUNT(*) > 0 FROM information_schema.processlist
WHERE info LIKE 'SET @aux%' AND state = 'User lock';
source include/wait_condition.inc;
RENAME TABLE t1 TO t1x;
RENAME TABLE t1x TO t1;
connection con1;
--echo # Reap result of "$stmt".
--error ER_USER_LOCK_DEADLOCK
reap;
SELECT RELEASE_ALL_LOCKS();
SELECT COUNT(*) FROM t1;
connection default;
SELECT RELEASE_ALL_LOCKS();
--echo # FT-12.3: GET_LOCK in a better designed INSERT TRIGGER loses.
--echo # FT-12.3.1: Session with INSERT loses via user lock deadlock.
connection default;
DELETE FROM t1;
DROP TRIGGER trig_t1_ins;
--delimiter |
CREATE TRIGGER trig_t1_ins BEFORE INSERT ON t1 FOR EACH ROW
BEGIN
SET @aux = GET_LOCK(2,1);
IF @aux <> 1 THEN
SIGNAL SQLSTATE '45000'
SET MESSAGE_TEXT = 'LOCK 2 not got. Abort.', MYSQL_ERRNO = 9999;
END IF;
END;|
--delimiter ;
SELECT GET_LOCK(CAST(2 AS CHAR),0);
connection con1;
SELECT GET_LOCK(CAST(1 AS CHAR),0);
connection default;
let $stmt= SELECT GET_LOCK(CAST(1 AS CHAR),7200);
--echo # Send statement and reap result later.
--send
eval $stmt;
connection con1;
let $wait_condition= SELECT COUNT(*) > 0 FROM information_schema.processlist
WHERE info LIKE 'select%' AND state = 'User lock';
source include/wait_condition.inc;
--error ER_USER_LOCK_DEADLOCK
INSERT INTO t1 VALUES(1),(2),(3);
SELECT RELEASE_ALL_LOCKS();
SELECT COUNT(*) FROM t1;
connection default;
--echo # Reap result of "$stmt".
--reap
SELECT RELEASE_ALL_LOCKS();
--echo # FT-12.3.2: INSERT fails in TRIGGER because not getting a user lock in time.
connection default;
DELETE FROM t1;
SELECT GET_LOCK(CAST(2 AS CHAR),0);
connection con1;
--error 9999
INSERT INTO t1 VALUES(1),(2),(3);
SELECT @aux;
SELECT RELEASE_ALL_LOCKS();
SELECT COUNT(*) FROM t1;
connection default;
SELECT RELEASE_ALL_LOCKS();
DROP TRIGGER trig_t1_ins;
--echo # FT-12.4: User locks and violation of uniqueness.
connection default;
CREATE TABLE t2 (col1 INT, col2 INT, PRIMARY KEY(col1));
DELETE FROM t1;
INSERT INTO t1 VALUES(1),(2),(1);
--error ER_DUP_ENTRY
INSERT INTO t2 SELECT id, GET_LOCK(id,0) FROM t1;
SELECT RELEASE_ALL_LOCKS();
SELECT * FROM t2;
DELETE FROM t1;
DELETE FROM t2;
INSERT INTO t1 VALUES(1),(1),(2);
--error ER_DUP_ENTRY
INSERT INTO t2 SELECT id, GET_LOCK(id,0) FROM t1;
SELECT RELEASE_ALL_LOCKS();
SELECT * FROM t2;
DROP TABLE t2;
--echo # FT-12.5: GET_LOCK in a statement having wrong syntax anyway.
--echo # We get no lock because full syntax check comes first.
--error ER_BAD_FIELD_ERROR
SELECT GET_LOCK('test', 0) ORDER BY oscar;
SELECT RELEASE_ALL_LOCKS() = 0 AS expect_1;
--echo # Cleanup.
connection default;
DROP TABLE t1;
--echo # FT-12.6: Mix of GET_LOCK and RELEASE*LOCK*
--echo # Execution is from the left to the right.
SELECT GET_LOCK('test', 0), RELEASE_LOCK('test');
SELECT IS_FREE_LOCK('test') = 1 AS expect_1;
SELECT GET_LOCK('test', 0), RELEASE_LOCK('test'), GET_LOCK('test', 0);
SELECT IS_FREE_LOCK('test') = 0 AS expect_1;
SELECT RELEASE_LOCK('test') = 1 AS expect_1;
SELECT GET_LOCK('test', 0), GET_LOCK('test1', 0), RELEASE_ALL_LOCKS(),
GET_LOCK('test', 0);
SELECT RELEASE_ALL_LOCKS() = 1 AS expect_1;
--echo # FT-13: Check types of function results.
CREATE TABLE t1 AS SELECT GET_LOCK('test', 0) AS g, RELEASE_LOCK('test') AS r,
RELEASE_ALL_LOCKS() AS ra, IS_USED_LOCK('test') AS isu,
IS_FREE_LOCK('test') AS isf;
DESCRIBE t1;
DROP TABLE t1;
--echo # FT-14: Check the handling of user-level lock related function parameters.
--echo # FT-14.1: Lock names with NULL or "" assigned.
--error ER_USER_LOCK_WRONG_NAME
SELECT GET_LOCK(NULL, 0);
--error ER_USER_LOCK_WRONG_NAME
SELECT GET_LOCK("", 0);
--error ER_USER_LOCK_WRONG_NAME
SELECT RELEASE_LOCK(NULL);
--error ER_USER_LOCK_WRONG_NAME
SELECT RELEASE_LOCK("");
--error ER_USER_LOCK_WRONG_NAME
SELECT IS_USED_LOCK(NULL);
--error ER_USER_LOCK_WRONG_NAME
SELECT IS_USED_LOCK("");
--error ER_USER_LOCK_WRONG_NAME
SELECT IS_FREE_LOCK(NULL);
--error ER_USER_LOCK_WRONG_NAME
SELECT IS_FREE_LOCK("");
--echo # FT-14.2: Length of lock name at the limit of 64.
SELECT GET_LOCK(REPEAT('a', 64), 0) = 1 AS expect_1;
SELECT IS_USED_LOCK(REPEAT('a', 64)) = CONNECTION_ID() AS expect_1;
SELECT IS_FREE_LOCK(REPEAT('a', 64)) = 0 AS expect_1;
SELECT RELEASE_LOCK(REPEAT('a', 64)) = 1 AS expect_1;
--echo # FT-14.3: Lock name too long.
--error ER_USER_LOCK_WRONG_NAME
SELECT GET_LOCK(REPEAT('a', 65), 0);
--error ER_USER_LOCK_WRONG_NAME
SELECT IS_USED_LOCK(REPEAT('a', 65));
--error ER_USER_LOCK_WRONG_NAME
SELECT IS_FREE_LOCK(REPEAT('a', 65));
--error ER_USER_LOCK_WRONG_NAME
SELECT RELEASE_LOCK(REPEAT('a', 65));
--echo # FT-14.4: Check that lock names are case-insensitive.
SELECT GET_LOCK('A', 0);
connection con1;
SELECT GET_LOCK('a', 0);
connection default;
SELECT IS_USED_LOCK('a') = CONNECTION_ID();
SELECT IS_FREE_LOCK('a');
SELECT RELEASE_LOCK('a');
--echo # FT-14.5: Check that lock names are converted and compared in utf-8,
--echo # to do this use 'ัะตัั' in various encodings as lock name.
SELECT GET_LOCK(_cp1251 0xf2e5f1f2, 0);
connection con1;
SELECT GET_LOCK(_utf8 0xd182d0b5d181d182, 0);
connection default;
SELECT IS_USED_LOCK(_koi8r 0xd4c5d3d4) = CONNECTION_ID();
SELECT IS_FREE_LOCK(_utf8 0xd182d0b5d181d182);
SELECT RELEASE_LOCK(_utf8 0xd182d0b5d181d182);
--echo # FT-14.6: Check wrong number of parameters.
--error ER_WRONG_PARAMCOUNT_TO_NATIVE_FCT
SELECT GET_LOCK('test');
--error ER_WRONG_PARAMCOUNT_TO_NATIVE_FCT
SELECT GET_LOCK('test', 0, 1);
--error ER_WRONG_PARAMCOUNT_TO_NATIVE_FCT
SELECT RELEASE_LOCK();
--error ER_WRONG_PARAMCOUNT_TO_NATIVE_FCT
SELECT RELEASE_LOCK('test', 1);
--error ER_WRONG_PARAMCOUNT_TO_NATIVE_FCT
SELECT RELEASE_ALL_LOCKS('test');
--error ER_WRONG_PARAMCOUNT_TO_NATIVE_FCT
SELECT IS_USED_LOCK();
--error ER_WRONG_PARAMCOUNT_TO_NATIVE_FCT
SELECT IS_USED_LOCK('test', 'test2');
--error ER_WRONG_PARAMCOUNT_TO_NATIVE_FCT
SELECT IS_FREE_LOCK();
--error ER_WRONG_PARAMCOUNT_TO_NATIVE_FCT
SELECT IS_FREE_LOCK('test', 'test2');
--echo # FT-14.7: NULL timeout is interpreted as 0 timeout.
connection con1;
SELECT GET_LOCK("test", 0);
connection default;
--echo # Interpretation as 0 leads to use of send/reap is not required.
SELECT GET_LOCK("test", NULL) = 0 AS expect_1;
connection con1;
SELECT RELEASE_LOCK("test");
connection default;
--echo # FT-14.8: Check that a negative timeout is interpreted as infinite wait.
--echo # Test case for
--echo # BUG#11764049 GET_LOCK() TIMEOUT BEHAVES DIFFERENTLY ON
--echo # DIFFERING PLATFORMS
connection default;
SELECT GET_LOCK('test', 0);
connection con1;
let $stmt= SELECT GET_LOCK('test', -1);
--echo # Send statement and reap result later.
--send
eval $stmt;
connection default;
let $wait_condition= SELECT COUNT(*) > 0 FROM information_schema.processlist
WHERE info LIKE 'select%' AND state = 'User lock';
source include/wait_condition.inc;
SELECT RELEASE_LOCK('test');
connection con1;
--echo # Reap result of "$stmt".
reap;
SELECT RELEASE_LOCK('test');
disconnect con1;
# This sub test was in history placed in func_misc.test.
#
# Bug#16501: IS_USED_LOCK does not appear to work
#
connection default;
CREATE TABLE t1 (conn CHAR(7), connection_id INT);
INSERT INTO t1 VALUES ('default', CONNECTION_ID());
SELECT GET_LOCK('bug16501',600);
connect (con1,localhost,root,,);
INSERT INTO t1 VALUES ('con1', CONNECTION_ID());
SELECT IS_USED_LOCK('bug16501') = connection_id
FROM t1
WHERE conn = 'default';
let $stmt= SELECT GET_LOCK('bug16501',600);
--echo # Send statement and reap result later.
--send
eval $stmt;
connection default;
SELECT IS_USED_LOCK('bug16501') = CONNECTION_ID();
SELECT RELEASE_LOCK('bug16501');
connection con1;
--echo # Reap result of "$stmt".
reap;
connection default;
SELECT IS_USED_LOCK('bug16501') = connection_id
FROM t1
WHERE conn = 'con1';
connection con1;
SELECT IS_USED_LOCK('bug16501') = CONNECTION_ID();
SELECT RELEASE_LOCK('bug16501');
SELECT IS_USED_LOCK('bug16501');
connection default;
SELECT RELEASE_ALL_LOCKS();
DROP TABLE t1;
connection con1;
disconnect con1;
--source include/wait_until_disconnected.inc
connection default;
--disable_connect_log
--echo #
--echo # Bug#20031761 ASSERTION `SCALE >= 0 && PRECISION > 0 &&
--echo # SCALE <= PRECISION' FAILED
--echo #
SET @@session.div_precision_increment=0;
select * from(SELECT MIN(GET_LOCK(0,0) / 1 ^ 0)) as a;
select * from(SELECT MAX(RELEASE_LOCK(0) / 1 ^ 0)) as a;
select * from(SELECT MAX(RELEASE_ALL_LOCKS() / 1 ^ 0)) as a;
SET @@session.div_precision_increment=default;
--echo #
--echo # End of tests
--echo #