mariadb/mysql-test/suite/innodb/t/innodb-read-view.test
Marko Mäkelä 228b7e4db5 MDEV-13626 Merge InnoDB test cases from MySQL 5.7
This imports and adapts a number of MySQL 5.7 test cases that are
applicable to MariaDB.

Some tests for old bug fixes are not that relevant because the code
has been refactored since then (especially starting with
MariaDB Server 10.6), and the tests would not reproduce the
original bug if the fix was reverted.

In the test innodb_fts.opt, there are many duplicate MATCH ranks, which
would make the results nondeterministic. The test was stabilized by
changing some LIMIT clauses or by adding sorted_result in those cases
where the purpose of a test was to show that no sorting took place
in the server.

In the test innodb_fts.phrase, MySQL 5.7 would generate FTS_DOC_ID that
are 1 larger than in MariaDB. In innodb_fts.index_table the difference is 2.
This is because in MariaDB, fts_get_next_doc_id() post-increments
cache->next_doc_id, while MySQL 5.7 pre-increments it.

Reviewed by: Thirunarayanan Balathandayuthapani
2023-11-08 12:17:14 +02:00

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3.8 KiB
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# DEBUG_SYNC must be compiled in.
--source include/have_debug_sync.inc
--source include/have_debug.inc
# We need to test the use case:
# a. Create a transaction T1 that will be promoted to RW.
# b. Create a transaction T2 that will be promoted to RW.
# a. Create a RO transaction T3
# d. T3 does a select - creates a read view that doesn't include T1 and T2
# e. T1 & T2 do some updates - this promotes T1 & T2 to RW transactions
# f. T1 & T2 Commit
# g. T3 Does a select - it should not see the changes of T1 & T2
--source include/have_innodb.inc
--source include/count_sessions.inc
CREATE TABLE t1 (c1 INT , c2 CHAR(10), PRIMARY KEY (c1)) ENGINE = InnoDB;
INSERT INTO t1 VALUES(0, "0");
INSERT INTO t1 VALUES(1, "1");
INSERT INTO t1 VALUES(2, "2");
INSERT INTO t1 VALUES(3, "3");
CREATE TABLE t2 (c1 INT , c2 CHAR(10), PRIMARY KEY (c1)) ENGINE = InnoDB;
INSERT INTO t2 VALUES(0, "a");
INSERT INTO t2 VALUES(1, "b");
INSERT INTO t2 VALUES(2, "c");
INSERT INTO t2 VALUES(3, "d");
--connect (con1,localhost,root,,)
SET AUTOCOMMIT=0;
BEGIN;
SELECT * FROM t2;
connection default;
SET AUTOCOMMIT=0;
BEGIN;
SELECT * FROM t1;
--connect (con2,localhost,root,,)
SET AUTOCOMMIT=0;
SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;
BEGIN;
SELECT * FROM t1;
SELECT * FROM t2;
connection con1;
UPDATE t2 SET c1 = c1 + 100;
SELECT * FROM t2;
COMMIT;
connection default;
UPDATE t1 SET c1 = c1 + 100;
SELECT * FROM t1;
COMMIT;
connection con2;
SET DEBUG_SYNC='row_search_for_mysql_before_return WAIT_FOR waiting1';
--send SELECT * FROM t1;
connection default;
SET DEBUG_SYNC='now SIGNAL waiting1';
connection con2;
reap;
connection con2;
SET DEBUG_SYNC='row_search_for_mysql_before_return WAIT_FOR waiting1';
--send SELECT * FROM t2;
connection default;
SET DEBUG_SYNC='now SIGNAL waiting1';
connection con2;
reap;
connection default;
# We need to test the use case:
# a. Create a transaction T1 that will be promoted to RW.
# b. Create a transaction T2 that will be promoted to RW.
# c. T2 does some updates - this promotes T2 to RW transactions
# d. T2 Commits
# e. Create a RO transaction T3
# f. T3 does a select - creates a read view that doesn't include T1
# g. T1 does some updates - this promotes T1 to RW transactions
# h. T1 Commits
# i. T3 Does a select - it should not see the changes made by T1 but should
# see the changes by T2
connection con1;
SET AUTOCOMMIT=0;
BEGIN;
SELECT * FROM t1;
connection default;
SET AUTOCOMMIT=0;
BEGIN;
SELECT * FROM t2;
UPDATE t2 SET c1 = c1 + 100;
SELECT * FROM t2;
COMMIT;
connection con2;
SET AUTOCOMMIT=0;
SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;
BEGIN;
SELECT * FROM t1;
SELECT * FROM t2;
connection con1;
UPDATE t1 SET c1 = c1 + 100;
SELECT * FROM t1;
COMMIT;
connection con2;
SET DEBUG_SYNC='row_select_wait WAIT_FOR waiting1';
--send SELECT * FROM t1;
connection con1;
SET DEBUG_SYNC='now SIGNAL waiting1';
connection con2;
reap;
SET DEBUG_SYNC='row_select_wait WAIT_FOR waiting1';
--send SELECT * FROM t2;
connection default;
SET DEBUG_SYNC='now SIGNAL waiting1';
connection con2;
reap;
disconnect con2;
connection default;
DROP TABLE t1;
DROP TABLE t2;
--echo #
--echo # Bug 21433768: NON-REPEATABLE READ WITH REPEATABLE READ ISOLATION
--echo #
connection con1;
CREATE TABLE t1(col1 INT PRIMARY KEY, col2 INT) ENGINE = InnoDB;
INSERT INTO t1 values (1, 0), (2, 0);
SELECT * FROM t1 ORDER BY col1;
START TRANSACTION;
UPDATE t1 SET col2 = 100;
SET DEBUG_SYNC = 'after_trx_committed_in_memory SIGNAL s1 WAIT_FOR s2';
--send COMMIT;
connection default;
SET DEBUG_SYNC = 'now WAIT_FOR s1';
UPDATE t1 SET col2 = col2 + 10 where col1 = 1;
COMMIT;
SELECT * FROM t1 ORDER BY col1;
SET DEBUG_SYNC = 'now SIGNAL s2';
connection con1;
reap;
disconnect con1;
connection default;
SET DEBUG_SYNC= 'RESET';
DROP TABLE t1;
--source include/wait_until_count_sessions.inc