60 lines
1.8 KiB
Plaintext
60 lines
1.8 KiB
Plaintext
--echo #
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--echo # Test of the case when two rewrite rule pattern have the same digest.
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--echo #
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SET sql_mode = 'PIPES_AS_CONCAT';
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--source suite/query_rewrite_plugins/include/have_plugin_rewriter.inc
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CREATE TABLE t1 ( a VARCHAR(10) );
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--source suite/query_rewrite_plugins/include/install_rewriter_with_optional_columns.inc
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--echo # This will supposedly fill up the token buffer.
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--echo # 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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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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SELECT char_length(pattern) FROM query_rewrite.rewrite_rules;
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PREPARE pattern1_stmt FROM @pattern1;
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EXECUTE pattern1_stmt;
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PREPARE pattern2_stmt FROM @pattern2;
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EXECUTE pattern2_stmt;
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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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SET @@global.rewriter_verbose = DEFAULT;
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--source suite/query_rewrite_plugins/include/load_error_log.inc
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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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DROP TABLE t1;
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--source suite/query_rewrite_plugins/include/uninstall_rewriter.inc
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--source suite/query_rewrite_plugins/include/drop_error_log.inc
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SET sql_mode = DEFAULT;
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