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#
# Test of disabled rules ('NO' in enabled column.)
#
CREATE TABLE t1 ( c1 VARCHAR(10), c2 VARCHAR(10) );
INSERT INTO t1 VALUES ( 'abc', 'def' ), ( 'ghi', 'klm' ), ( 'nop', 'qrs' );
CREATE TABLE t2 ( c1 VARCHAR(10) );
INSERT INTO t2 VALUES ( 'abc' ), ( 'klm' );
Warnings:
Warning 1681 'RESET QUERY CACHE' is deprecated and will be removed in a future release.
Warnings:
Warning 1681 'RESET QUERY CACHE' is deprecated and will be removed in a future release.
# Query rewrite plugin was installed.
INSERT INTO query_rewrite.rewrite_rules ( pattern, replacement, enabled )
VALUES ( 'SELECT * FROM test.t2',
'SELECT * FROM test.t1 JOIN test.t2 ON test.t1.c1 = test.t2.c1', 'NO'
);
CALL query_rewrite.flush_rewrite_rules();
Warnings:
Warning 1681 'RESET QUERY CACHE' is deprecated and will be removed in a future release.
# Check that the rewrite rule is not executed.
SELECT * FROM test.t2;
c1
abc
klm
# Check that the rule is indeed disabled.
SELECT pattern, replacement, enabled FROM query_rewrite.rewrite_rules;
pattern replacement enabled
SELECT * FROM test.t2 SELECT * FROM test.t1 JOIN test.t2 ON test.t1.c1 = test.t2.c1 NO
# Enable the previously disabled rule.
UPDATE query_rewrite.rewrite_rules
SET enabled = 'YES'
WHERE pattern = 'SELECT * FROM test.t2';
CALL query_rewrite.flush_rewrite_rules();
# Verify that the rewrite rule is enabled.
SELECT * FROM test.t2;
c1 c2 c1
abc def abc
Warnings:
Note 1105 Query 'SELECT * FROM test.t2' rewritten to 'SELECT * FROM test.t1 JOIN test.t2 ON test.t1.c1 = test.t2.c1' by a query rewrite plugin
# Disable via UPDATE...
UPDATE query_rewrite.rewrite_rules
SET enabled = 'NO'
WHERE pattern = 'SELECT * FROM test.t2';
CALL query_rewrite.flush_rewrite_rules();
# Verify that the rewrite rule is disabled again.
SELECT * FROM test.t2;
c1
abc
klm
DROP TABLE t1, t2;
Warnings:
Warning 1620 Plugin is busy and will be uninstalled on shutdown
# Query rewrite plugin was queued for uninstalling.