64 lines
2.0 KiB
Plaintext
64 lines
2.0 KiB
Plaintext
#
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# Inserts some rules, tests them and then inserts another one.
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#
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use test;
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CREATE TABLE t1 ( c1 VARCHAR(10), c2 VARCHAR(10) );
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INSERT INTO t1 VALUES ( 'abc', 'def' ),
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( 'ghi', 'klm' ),
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( 'nop', 'qrs' );
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CREATE TABLE t2 ( c1 VARCHAR(10) );
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INSERT INTO t2 VALUES ( 'abc' ),
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( 'klm' );
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# Query rewrite plugin was installed.
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INSERT INTO query_rewrite.rewrite_rules ( pattern, replacement )
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VALUES ( 'SELECT * FROM test.t1 WHERE ( c1 = ? AND TRUE ) OR c2 = ?',
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'SELECT c1 FROM test.t1 WHERE c1 = ?' ),
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( 'SELECT * FROM test.t2',
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'SELECT * FROM test.t1 JOIN test.t2 ON test.t1.c1 = t2.c1' );
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CALL query_rewrite.flush_rewrite_rules();
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SHOW STATUS LIKE 'Rewriter_number_loaded_rules';
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Variable_name Value
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Rewriter_number_loaded_rules 2
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SHOW STATUS LIKE 'Rewriter_number_reloads';
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Variable_name Value
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Rewriter_number_reloads 2
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SELECT c2 FROM test.t1;
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c2
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def
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klm
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qrs
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# Check that a rewrite works.
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SELECT * FROM test.t2;
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c1 c2 c1
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abc def abc
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Warnings:
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Note 1105 Query 'SELECT * FROM test.t2' rewritten to 'SELECT * FROM test.t1 JOIN test.t2 ON test.t1.c1 = t2.c1' by a query rewrite plugin
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INSERT INTO query_rewrite.rewrite_rules ( pattern, replacement )
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VALUES ( 'SELECT c2 FROM test.t1', 'SELECT * FROM test.t1' );
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CALL query_rewrite.flush_rewrite_rules();
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SHOW STATUS LIKE 'Rewriter_number_loaded_rules';
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Variable_name Value
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Rewriter_number_loaded_rules 3
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SHOW STATUS LIKE 'Rewriter_number_reloads';
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Variable_name Value
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Rewriter_number_reloads 3
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SET @@global.rewriter_verbose = 2;
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# Check that the new rule works.
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SELECT c2 FROM test.t1;
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c1 c2
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abc def
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ghi klm
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nop qrs
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Warnings:
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Note 1105 Query 'SELECT c2 FROM test.t1' rewritten to 'SELECT * FROM test.t1' by a query rewrite plugin
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# Check that the old rewrites still work.
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SELECT * FROM test.t2;
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c1 c2 c1
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abc def abc
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Warnings:
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Note 1105 Query 'SELECT * FROM test.t2' rewritten to 'SELECT * FROM test.t1 JOIN test.t2 ON test.t1.c1 = t2.c1' by a query rewrite plugin
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DROP TABLE t1, t2;
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Warnings:
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Warning 1620 Plugin is busy and will be uninstalled on shutdown
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# Query rewrite plugin was queued for uninstalling.
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