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#
# Reinstalls the plugin while keeping the rules table.
#
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' );
# Query rewrite plugin was installed.
# Insert some rewrite rules in the plugin
INSERT INTO query_rewrite.rewrite_rules ( pattern, replacement )
VALUES ( 'SELECT * FROM test.t2',
'SELECT * FROM test.t1 JOIN test.t2 ON test.t1.c1 = test.t2.c1' );
CALL query_rewrite.flush_rewrite_rules();
# Check a query that doesn't have a rewrite rule doesn't get rewritten.
SELECT c2 FROM test.t1;
c2
def
klm
qrs
# Check that we can execute a rewrite rule.
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
DROP PROCEDURE query_rewrite.flush_rewrite_rules;
DROP FUNCTION load_rewrite_rules;
UNINSTALL PLUGIN rewriter;
Warnings:
Warning 1620 Plugin is busy and will be uninstalled on shutdown
# Check that the table is still present and didn't get dropped.
SELECT pattern, replacement FROM query_rewrite.rewrite_rules;
pattern replacement
SELECT * FROM test.t2 SELECT * FROM test.t1 JOIN test.t2 ON test.t1.c1 = test.t2.c1
# Check that when the plugin is inactive the queries don't get rewritten.
SELECT * FROM test.t2;
c1
abc
klm
# Reinstall the plugin. All the rules should still be here from the
# previous installation.
Warnings:
Note 1007 Can't create database 'query_rewrite'; database exists
Warnings:
Note 1050 Table 'rewrite_rules' already exists
# Query rewrite plugin was installed.
# Check that a query that doesn't have a rewrite rule doesn't get
# rewritten.
SELECT c2 FROM test.t1;
c2
def
klm
qrs
# Check that we can still execute a rewrite rule.
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
DROP TABLE t1, t2;
Warnings:
Warning 1620 Plugin is busy and will be uninstalled on shutdown
# Query rewrite plugin was queued for uninstalling.
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