mariadb/mysql-test/main/partition_innodb_semi_consistent.test

-- source include/no_view_protocol.inc

-- source include/have_partition.inc
-- source include/not_embedded.inc
-- source include/have_innodb.inc

--disable_warnings
drop table if exists t1;
--enable_warnings

# basic tests of semi-consistent reads
# for verifying Bug#40595: Non-matching rows not released with READ-COMMITTED
#               on tables with partitions

connect (a,localhost,root,,);
connect (b,localhost,root,,);
connection a;
set binlog_format=mixed;
set session transaction isolation level repeatable read;
create table t1(a int not null)
engine=innodb
DEFAULT CHARSET=latin1
PARTITION BY RANGE(a)
(PARTITION p0 VALUES LESS THAN (20),
 PARTITION p1 VALUES LESS THAN MAXVALUE);
insert into t1 values (1),(2),(3),(4),(5),(6),(7);
set autocommit=0;
# this should lock the entire table
select * from t1 where a=3 lock in share mode;
connection b;
set binlog_format=mixed;
set session transaction isolation level repeatable read;
set autocommit=0;
-- error ER_LOCK_WAIT_TIMEOUT
update t1 set a=10 where a=5;
commit;
connection a;
#DELETE FROM t1 WHERE a=5;
commit;
connection b;
# perform a semi-consisent read (and unlock non-matching rows)
set session transaction isolation level read committed;
update t1 set a=10 where a=5;
connection a;
-- error ER_LOCK_WAIT_TIMEOUT
select * from t1 where a=2 for update;
# this should lock the records (1),(2)
select * from t1 where a=2 limit 1 for update;
connection b;
# semi-consistent read will skip non-matching locked rows a=1, a=2
update t1 set a=11 where a=6;
-- error ER_LOCK_WAIT_TIMEOUT
update t1 set a=12 where a=2;
-- error ER_LOCK_WAIT_TIMEOUT
update t1 set a=13 where a=1;
connection a;
commit;
connection b;
update t1 set a=14 where a=1;
commit;
connection a;
--sorted_result
select * from t1;
drop table t1;

connection default;
disconnect a;
disconnect b;

#
# Bug #31310: Locked rows silently skipped in read-committed isolation level.
# (This also tests the '*_semi_consistent*' functions in partitioning)
# Copied from include/mix1.inc

connect (con1,localhost,root,,);
connect (con2,localhost,root,,);
SET SESSION AUTOCOMMIT = 0;
SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
set binlog_format=mixed;
connection con1;

eval
CREATE TABLE t1 (a INT PRIMARY KEY, b VARCHAR(256))
ENGINE = InnoDB
PARTITION BY RANGE (a)
(PARTITION p0 VALUES LESS THAN (300),
 PARTITION p1 VALUES LESS THAN MAXVALUE);
INSERT INTO t1 VALUES (1,2);

--echo # 1. test for locking:

BEGIN;
--enable_info
UPDATE t1 SET b = 12 WHERE a = 1;
--disable_info
SELECT * FROM t1;

connection con2;

--enable_info
--disable_abort_on_error
--error ER_LOCK_WAIT_TIMEOUT
UPDATE t1 SET b = 21 WHERE a = 1;
--disable_info
ROLLBACK;

connection con1;
SELECT * FROM t1;
ROLLBACK;

--echo # 2. test for serialized update:

CREATE TABLE t2 (a INT);

TRUNCATE t1;
INSERT INTO t1 VALUES (1,'init');

DELIMITER |;
CREATE PROCEDURE p1()
BEGIN
  # retry the UPDATE in case it times out the lock before con1 has time
  # to COMMIT.
  DECLARE do_retry INT DEFAULT 0;
  DECLARE CONTINUE HANDLER FOR SQLEXCEPTION SET do_retry = 1;
  retry_loop:LOOP
    UPDATE t1 SET b = CONCAT(b, '+con2')  WHERE a = 1;
    IF do_retry = 0 THEN
      LEAVE retry_loop;
    END IF;
    SET do_retry = 0;
  END LOOP;
  INSERT INTO t2 VALUES ();
END|
DELIMITER ;|

BEGIN;
--enable_info
UPDATE t1 SET b = CONCAT(b, '+con1') WHERE a = 1;
--disable_info
SELECT * FROM t1;

connection con2;

--send CALL p1;

connection con1;
SELECT * FROM t1;
COMMIT;

let $bug31310 = 1;
while ($bug31310)
{
  let $bug31310= `SELECT 1 - COUNT(*) FROM t2`;
}

SELECT * FROM t1;

connection con2;
--reap
SELECT * FROM t1;
COMMIT;

connection con1;

--echo # 3. test for updated key column:

TRUNCATE t1;
DELETE FROM t2;

INSERT INTO t1 VALUES (1,'init');

BEGIN;
--enable_info
UPDATE t1 SET a = 2, b = CONCAT(b, '+con1') WHERE a = 1;
--disable_info
SELECT * FROM t1;

connection con2;

--send CALL p1;

connection con1;
SELECT * FROM t1;
COMMIT;

let $bug31310 = 1;
while ($bug31310)
{
  let $bug31310= `SELECT 1 - COUNT(*) FROM t2`;
}

SELECT * FROM t1;

connection con2;
reap;
SELECT * FROM t1;

connection default;
disconnect con1;
disconnect con2;
DROP PROCEDURE p1;
DROP TABLE t1, t2;