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--source include/have_innodb.inc
# Save the initial number of concurrent sessions
--source include/count_sessions.inc
--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings
--echo # Establish connection con1 (user=root)
connect (con1,localhost,root,,);
--echo # Establish connection con2 (user=root)
connect (con2,localhost,root,,);
### Test 1:
### - While a consistent snapshot transaction is executed,
### no external inserts should be visible to the transaction.
--echo # Switch to connection con1
connection con1;
CREATE TABLE t1 (a INT) ENGINE=innodb;
START TRANSACTION WITH CONSISTENT SNAPSHOT;
--echo # Switch to connection con2
connection con2;
INSERT INTO t1 VALUES(1);
--echo # Switch to connection con1
connection con1;
SELECT * FROM t1; # if consistent snapshot was set as expected, we
# should see nothing.
COMMIT;
### Test 2:
### - For any non-consistent snapshot transaction, external
### committed inserts should be visible to the transaction.
DELETE FROM t1;
START TRANSACTION; # Now we omit WITH CONSISTENT SNAPSHOT
--echo # Switch to connection con2
connection con2;
INSERT INTO t1 VALUES(1);
--echo # Switch to connection con1
connection con1;
SELECT * FROM t1; # if consistent snapshot was not set, as expected, we
# should see 1.
COMMIT;
--echo # Switch to connection default + close connections con1 and con2
connection default;
disconnect con1;
disconnect con2;
DROP TABLE t1;
# End of 4.1 tests
# Wait till all disconnects are completed
--source include/wait_until_count_sessions.inc
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