--source include/have_innodb.inc

# Tests will be skipped for the view protocol because the view protocol creates 
# an additional util connection and other statistics data
-- source include/no_view_protocol.inc

# MDEV-254: Server hang with FLUSH TABLES WITH READ LOCK AND DISABLE CHECKPOINT
FLUSH TABLES WITH READ LOCK AND DISABLE CHECKPOINT;
UNLOCK TABLES;
CREATE TABLE t1 ( m MEDIUMTEXT ) ENGINE=InnoDB;
INSERT INTO t1 VALUES ( REPEAT('i',65535) );

DROP TABLE t1;

--echo
--echo #
--echo # WL#6168: FLUSH TABLES ... FOR EXPORT -- parser
--echo #
--echo

--echo # new "EXPORT" keyword is a valid user variable name:

SET @export = 10;

--echo # new "EXPORT" keyword is a valid SP parameter name:

CREATE PROCEDURE p1(export INT) BEGIN END;
DROP PROCEDURE p1;

--echo # new "EXPORT" keyword is a valid local variable name:

DELIMITER |;
CREATE PROCEDURE p1()
BEGIN
  DECLARE export INT;
END|
DELIMITER ;|
DROP PROCEDURE p1;

--echo # new "EXPORT" keyword is a valid SP name:

CREATE PROCEDURE export() BEGIN END;
DROP PROCEDURE export;

--echo # new FLUSH TABLES ... FOR EXPORT syntax:

--error ER_PARSE_ERROR
FLUSH TABLES FOR EXPORT;
--error ER_PARSE_ERROR
FLUSH TABLES WITH EXPORT;


CREATE TABLE t1 (i INT) engine=InnoDB;
CREATE TABLE t2 LIKE t1;

--error ER_PARSE_ERROR
FLUSH TABLES t1,t2 WITH EXPORT;

FLUSH TABLES t1, t2 FOR EXPORT;
UNLOCK TABLES;

--echo # case check
FLUSH TABLES t1, t2 for ExPoRt;
UNLOCK TABLES;
--echo # With LOCAL keyword
FLUSH LOCAL TABLES t1, t2 FOR EXPORT;
UNLOCK TABLES;
--echo # Tables with fully qualified names
FLUSH LOCAL TABLES test.t1, test.t2 for ExPoRt;
UNLOCK TABLES;

DROP TABLES t1, t2;

--echo # new "EXPORT" keyword is a valid table name:

CREATE TABLE export (i INT) engine=InnoDB;

--echo # it's ok to lock the "export" table for export:

FLUSH TABLE export FOR EXPORT;
UNLOCK TABLES;

DROP TABLE export;


--echo #
--echo # WL#6169 FLUSH TABLES ... FOR EXPORT -- runtime
--echo #

--echo # Test 1: Views, temporary tables, non-existent tables
--echo #

CREATE VIEW v1 AS SELECT 1;
CREATE TEMPORARY TABLE t1 (a INT);

FLUSH TABLES v1 FOR EXPORT;
UNLOCK TABLES;
--error ER_NO_SUCH_TABLE
FLUSH TABLES t1 FOR EXPORT;
--error ER_NO_SUCH_TABLE
FLUSH TABLES non_existent FOR EXPORT;

DROP TEMPORARY TABLE t1;
DROP VIEW v1;

--echo # Test 2: Blocked by update transactions, blocks updates.
--echo #

CREATE TABLE t1 (a INT PRIMARY KEY, b INT) engine= InnoDB;
CREATE TABLE t2 (a INT) engine= InnoDB;

--connect (con1, localhost, root)
START TRANSACTION;
INSERT INTO t1 VALUES (1, 1);

--connection default
--echo # Should be blocked
--echo # Sending:
--send FLUSH TABLES t1 FOR EXPORT

--connection con1
let $wait_condition=
  SELECT COUNT(*) = 1 FROM information_schema.processlist
  WHERE state = "Waiting for table metadata lock" AND
        info = "FLUSH TABLES t1 FOR EXPORT";
--source include/wait_condition.inc
COMMIT;

--connection default
--echo # Reaping: FLUSH TABLES t1 FOR EXPORT
--reap

--connection con1
--echo # Should not be blocked
INSERT INTO t2 VALUES (1);
--echo # Should be blocked
--echo # Sending:
--send INSERT INTO t1 VALUES (2, 2)

--connection default
let $wait_condition=
  SELECT COUNT(*) = 1 FROM information_schema.processlist
  WHERE state = "Waiting for table metadata lock" AND
        info = "INSERT INTO t1 VALUES (2, 2)";
--source include/wait_condition.inc
UNLOCK TABLES;

--connection con1
--echo # Reaping: INSERT INTO t1 VALUES (2, 2);
--reap

--echo # Test 3: Read operations should not be affected.
--echo # 

START TRANSACTION;
SELECT * FROM t1;

--connection default
--echo # Should not be blocked
FLUSH TABLES t1 FOR EXPORT;

--connection con1
COMMIT;
--echo # Should not be blocked
SELECT * FROM t1;

--connection default
UNLOCK TABLES;

--echo # Test 4: Blocked by DDL, blocks DDL.
--echo #

START TRANSACTION;
SELECT * FROM t1;

--connect (con2, localhost, root)
--echo # Sending:
--send ALTER TABLE t1 ADD INDEX i1(b)

--connection con1
let $wait_condition=
  SELECT COUNT(*) = 1 FROM information_schema.processlist
  WHERE state = "Waiting for table metadata lock" AND
        info = "ALTER TABLE t1 ADD INDEX i1(b)";
--source include/wait_condition.inc
--echo # Should be blocked
--send FLUSH TABLE t1 FOR EXPORT

--connection default
let $wait_condition=
  SELECT COUNT(*) = 1 FROM information_schema.processlist
  WHERE state = "Waiting for table metadata lock" AND
        info = "FLUSH TABLE t1 FOR EXPORT";
--source include/wait_condition.inc
COMMIT;

--connection con2
--echo # Reaping ALTER TABLE ...
--reap

--connection con1
--echo # Reaping FLUSH TABLE t1 FOR EXPORT
--reap
UNLOCK TABLES;

--connection default
FLUSH TABLE t1 FOR EXPORT;

--connection con2
--echo # Should be blocked
--send DROP TABLE t1

--connection default
let $wait_condition=
  SELECT COUNT(*) = 1 FROM information_schema.processlist
  WHERE state = "Waiting for table metadata lock" AND
        info = "DROP TABLE t1";
--source include/wait_condition.inc
UNLOCK TABLES;

--connection con2
--echo # Reaping DROP TABLE t1
--reap
--disconnect con2
--connection default
DROP TABLE t2;

--echo # Test 5: Compatibilty with FLUSH TABLES WITH READ LOCK
--echo #

CREATE TABLE t1(a INT) engine= InnoDB;
FLUSH TABLES WITH READ LOCK;

--connection con1
--echo # This should not block
FLUSH TABLE t1 FOR EXPORT;
UNLOCK TABLES;

--connection default
UNLOCK TABLES;
DROP TABLE t1;

--echo # Test 6: Unsupported storage engines.
--echo #

CREATE TABLE t1(a INT) engine= MEMORY;
--error ER_ILLEGAL_HA
FLUSH TABLE t1 FOR EXPORT;
DROP TABLE t1;

--disconnect con1
--connection default

--echo # Test 7: Check privileges required.
--echo # in flush-innodb-notembedded.test

--echo # Test 8: FLUSH TABLE <table_list> FOR EXPORT is incompatible
--echo #         with itself (to avoid race conditions in metadata
--echo #         file handling).
--echo #

CREATE TABLE t1 (a INT) engine= InnoDB;
CREATE TABLE t2 (a INT) engine= InnoDB;

--connect (con1, localhost, root)
FLUSH TABLE t1 FOR EXPORT;

--connection default
--echo # This should not block
FLUSH TABLE t2 FOR EXPORT;
UNLOCK TABLES;
--echo # This should block
--echo # Sending:
--send FLUSH TABLE t1 FOR EXPORT

--connection con1
let $wait_condition=
  SELECT COUNT(*) = 1 FROM information_schema.processlist
  WHERE state = "Waiting for table metadata lock" AND
        info = "FLUSH TABLE t1 FOR EXPORT";
--source include/wait_condition.inc
UNLOCK TABLES;

--connection default
--echo # Reaping: FLUSH TABLE t1 FOR EXPORT
--reap
UNLOCK TABLES;

--echo # Test 9: LOCK TABLES ... READ is not affected
--echo #

LOCK TABLE t1 READ;

--connection con1
--echo # Should not block
FLUSH TABLE t1 FOR EXPORT;
UNLOCK TABLES;

--connection default
UNLOCK TABLES;
FLUSH TABLE t1 FOR EXPORT;

--connection con1
--echo # Should not block
LOCK TABLE t1 READ;
UNLOCK TABLES;

--connection default
UNLOCK TABLES;

--disconnect con1
--connection default
DROP TABLE t1, t2;

--echo # Test 10: Lock is released if transaction is started after doing
--echo #          'flush table..' in same session

CREATE TABLE t1 ( i INT ) ENGINE = Innodb;
FLUSH TABLE t1 FOR EXPORT;
--echo # error as active locks already exist
--error ER_LOCK_OR_ACTIVE_TRANSACTION
FLUSH TABLE t1 FOR EXPORT;
--echo # active locks will be released due to start transaction
START TRANSACTION;
--echo # passes as start transaction released ealier locks
FLUSH TABLE t1 FOR EXPORT;
UNLOCK TABLES;
DROP TABLE t1;

--echo # Test 11: Test 'flush table with fully qualified table names
--echo #          and with syntax local/NO_WRITE_TO_BINLOG

--connect (con1, localhost, root)

--connection default
CREATE TABLE t1 ( i INT ) ENGINE = Innodb;
INSERT INTO t1 VALUES (100),(200);
FLUSH LOCAL TABLES test.t1 FOR EXPORT;
--connection con1
--echo # Should be blocked
--echo # Sending:
--send FLUSH LOCAL TABLES t1 FOR EXPORT

--connection default
let $wait_condition=
  SELECT COUNT(*) = 1 FROM information_schema.processlist
  WHERE state = "Waiting for table metadata lock" AND
        info = "FLUSH LOCAL TABLES t1 FOR EXPORT";
--source include/wait_condition.inc
UNLOCK TABLE;

--connection con1
--echo # Reaping: FLUSH LOCAL TABLES t1 FOR EXPORT
--reap
SELECT * FROM t1 ORDER BY i;

--connection default
--echo # Should be blocked
--echo # Sending:
--send FLUSH NO_WRITE_TO_BINLOG TABLES test.t1 FOR EXPORT

--connection con1
let $wait_condition=
  SELECT COUNT(*) = 1 FROM information_schema.processlist
  WHERE state = "Waiting for table metadata lock" AND
        info = "FLUSH NO_WRITE_TO_BINLOG TABLES test.t1 FOR EXPORT";
--source include/wait_condition.inc
UNLOCK TABLES;

--connection default
--echo # Reaping: FLUSH NO_WRITE_TO_BINLOG TABLES test.t1 FOR EXPORT
--reap
SELECT * FROM t1 ORDER BY i;
UNLOCK TABLE;
DROP TABLE t1;

--echo # Test 12: Active transaction get committed if user execute
--echo #          "FLUSH TABLE ... FOR EXPORT" or "LOCK TABLE.."

--connection default
CREATE TABLE t1 ( i INT ) ENGINE = Innodb;
INSERT INTO t1 VALUES (100),(200);
START TRANSACTION;
INSERT INTO t1 VALUES (300);
--echo # 'flush table..' commit active transaction from same session
FLUSH LOCAL TABLES test.t1 FOR EXPORT;
ROLLBACK;
SELECT * FROM t1 ORDER BY i;
START TRANSACTION;
INSERT INTO t1 VALUES (400);
--echo # 'lock table ..' commit active transaction from same session
LOCK TABLES test.t1 READ;
ROLLBACK;
SELECT * FROM t1 ORDER BY i;
UNLOCK TABLES;
DROP TABLE t1;

--echo # Test 13: Verify "FLUSH TABLE ... FOR EXPORT" and "LOCK TABLE.."
--echo #          in same session   

--connection default
CREATE TABLE t1 ( i INT ) ENGINE = Innodb;
--echo # Lock table 
LOCK TABLES test.t1 WRITE;
--echo # 'lock table ..' completes even if table lock is acquired  
--echo # in same session using 'lock table'. Previous locks are released.
LOCK TABLES test.t1 READ;
--echo # 'flush table ..' gives error if table lock is acquired 
--echo # in same session using 'lock table ..'
--error ER_LOCK_OR_ACTIVE_TRANSACTION
FLUSH TABLES test.t1 FOR EXPORT;
--echo # 'lock table ..' completes even if table lock is acquired  
--echo # in same session using 'flush table'. Previous locks are released.
LOCK TABLES test.t1 WRITE;
UNLOCK TABLES;
DROP TABLE t1;

--disconnect con1
--connection default

--echo # End of 5.6 tests
