73 lines
3.8 KiB
Plaintext
73 lines
3.8 KiB
Plaintext
#
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# Test of the case when two rewrite rule pattern have the same digest.
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#
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SET sql_mode = 'PIPES_AS_CONCAT';
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Warnings:
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Warning 3090 Changing sql mode 'NO_AUTO_CREATE_USER' is deprecated. It will be removed in a future release.
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CREATE TABLE t1 ( a VARCHAR(10) );
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Warnings:
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Warning 1681 'RESET QUERY CACHE' is deprecated and will be removed in a future release.
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Warnings:
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Warning 1681 'RESET QUERY CACHE' is deprecated and will be removed in a future release.
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# Query rewrite plugin was installed.
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# This will supposedly fill up the token buffer.
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# We have to keep entries in the error log unique, we can't clear it.
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SET @pattern1 =
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'SELECT * FROM test.t1 WHERE a = "digest_collision.test" ' ||
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repeat ( 'UNION SELECT * FROM test.t1 WHERE a = "digest_collision.test"',
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120 );
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SET @pattern2 = concat ( @pattern1, 'UNION SELECT 1' );
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SET @nonmatching_query = concat ( @pattern1, 'UNION SELECT 2' );
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INSERT INTO query_rewrite.rewrite_rules ( pattern, replacement )
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VALUES ( @pattern1, 'SELECT "Rewrite rule #1"' ),
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( @pattern2, 'SELECT "Rewrite rule #2"' );
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CALL query_rewrite.flush_rewrite_rules();
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Warnings:
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Warning 1681 'RESET QUERY CACHE' is deprecated and will be removed in a future release.
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SELECT group_concat(replacement) =
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'SELECT "Rewrite rule #1",SELECT "Rewrite rule #2"'
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AS digests_indeed_collide
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FROM query_rewrite.rewrite_rules
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GROUP BY pattern_digest;
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digests_indeed_collide
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1
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SELECT char_length(pattern) FROM query_rewrite.rewrite_rules;
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char_length(pattern)
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7376
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7390
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PREPARE pattern1_stmt FROM @pattern1;
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Warnings:
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Note 1105 Query 'SELECT * FROM test.t1 WHERE a = "digest_collision.test" UNION SELECT * FROM test.t1 WHERE a = "digest_collision.test"UNION SELECT * FROM test.t1 WHERE a = "digest_collision.test"UNION SELECT * FROM test.t1 WHERE a = "digest_collision.test"UNION SELECT * FROM test.t1 WHERE a = "digest_collision.test"UNION SELECT * FROM test.t1 WHERE a = "digest_collision.test"UNION SELECT * FROM test.t1 WHERE a = "digest_collision.test"UNION SELECT * FROM test.t1 WHERE a = "digest_collision.test"UNION SELECT * FROM t
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EXECUTE pattern1_stmt;
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Rewrite rule #1
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Rewrite rule #1
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PREPARE pattern2_stmt FROM @pattern2;
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Warnings:
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Note 1105 Query 'SELECT * FROM test.t1 WHERE a = "digest_collision.test" UNION SELECT * FROM test.t1 WHERE a = "digest_collision.test"UNION SELECT * FROM test.t1 WHERE a = "digest_collision.test"UNION SELECT * FROM test.t1 WHERE a = "digest_collision.test"UNION SELECT * FROM test.t1 WHERE a = "digest_collision.test"UNION SELECT * FROM test.t1 WHERE a = "digest_collision.test"UNION SELECT * FROM test.t1 WHERE a = "digest_collision.test"UNION SELECT * FROM test.t1 WHERE a = "digest_collision.test"UNION SELECT * FROM t
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EXECUTE pattern2_stmt;
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Rewrite rule #2
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Rewrite rule #2
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SET @@global.rewriter_verbose = 2;
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PREPARE nonmatching_stmt FROM @nonmatching_query;
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EXECUTE nonmatching_stmt;
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a
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2
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SET @@global.rewriter_verbose = DEFAULT;
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CREATE TABLE IF NOT EXISTS error_log ( line TEXT );
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DELETE FROM error_log;
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LOAD DATA LOCAL INFILE 'ERROR_LOG'
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INTO TABLE error_log FIELDS TERMINATED BY '\t';
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UPDATE error_log SET line = replace ( line, '\r', '' );
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SELECT search_error_log( '[Note]', '%Plugin Rewriter reported: ''Statement "SELECT * FROM test.t1 ' ||
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'WHERE a = "digest_collision.test"%' );
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search_error_log( '[Note]', '%Plugin Rewriter reported: ''Statement "SELECT * FROM test.t1 ' ||
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'WHERE a = "digest_collision.test"%' )
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[Note] Plugin Rewriter reported: 'Statement "SELECT * FROM test.t1 WHERE a = "digest_collision.test" UNION SELECT * FROM test.t1 WHERE a = "diges..." with digest "a791200aa1f826531b128ea5f7ca3b99" matched some rule but had different parse tree and/or literals.'
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DROP TABLE t1;
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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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DROP TABLE error_log;
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DROP FUNCTION search_error_log;
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SET sql_mode = DEFAULT;
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