283 lines
8.8 KiB
Plaintext
283 lines
8.8 KiB
Plaintext
--echo #
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--echo # Test of various abuses of the plugin.
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--echo #
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--source suite/query_rewrite_plugins/include/have_plugin_rewriter.inc
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SET sql_mode = 'PIPES_AS_CONCAT';
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CALL mtr.add_suppression("Plugin rewriter reported: " ||
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"'Some rules failed to load.'");
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CALL mtr.add_suppression("Plugin rewriter reported: " ||
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"'Wrong column count or names when loading rules.'");
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--echo # In theory a user might try to install the UDF without the plugin. In
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--echo # this case, we should exit gracefully with an informative error.
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--replace_regex /\.so|\.dll/.xxx/
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eval CREATE FUNCTION load_rewrite_rules RETURNS STRING SONAME '$REWRITER';
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--error ER_CANT_INITIALIZE_UDF
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SELECT load_rewrite_rules();
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DROP FUNCTION load_rewrite_rules;
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CREATE TABLE t1 ( c1 VARCHAR(10), c2 VARCHAR(10) );
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INSERT INTO t1 VALUES( 'abc', 'def' ), ( 'ghi', 'klm' ), ( 'nop', 'qrs' );
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CREATE TABLE t2( c1 VARCHAR(10) );
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INSERT INTO t2 VALUES ( 'tuv' ), ( 'wxy' );
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--echo #
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--echo # Create a table with insufficient number of columns.
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--echo #
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CREATE DATABASE query_rewrite;
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CREATE TABLE query_rewrite.rewrite_rules ( pattern INT, replacement INT );
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--source suite/query_rewrite_plugins/include/install_rewriter.inc
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SELECT c1 FROM t1;
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SHOW STATUS LIKE 'Rewriter_reload_error';
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SHOW STATUS LIKE 'Rewriter_number_loaded_rules';
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--source suite/query_rewrite_plugins/include/load_error_log.inc
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--echo # Avoid seeing any other error that might be there.
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SELECT search_error_log( '[Error]', "%Plugin Rewriter reported: 'Wrong%" );
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SHOW STATUS LIKE 'Rewriter_number_reloads';
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--source suite/query_rewrite_plugins/include/uninstall_rewriter.inc
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--source include/disconnect_connections.inc
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--echo # Create another table with insufficient number of columns.
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CREATE DATABASE query_rewrite;
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CREATE TABLE query_rewrite.rewrite_rules ( enabled CHAR(1) DEFAULT 'Y' );
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--source suite/query_rewrite_plugins/include/install_rewriter.inc
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--source suite/query_rewrite_plugins/include/load_error_log.inc
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--echo # Avoid seeing any other error that might be there.
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SELECT search_error_log( '[Error]', "%Plugin Rewriter reported: 'Wrong%" );
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SHOW STATUS LIKE 'Rewriter_number_reloads';
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SELECT c1 FROM t1;
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SHOW STATUS LIKE 'Rewriter_reload_error';
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SHOW STATUS LIKE 'Rewriter_number_loaded_rules';
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--source suite/query_rewrite_plugins/include/uninstall_rewriter.inc
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--source include/disconnect_connections.inc
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--source suite/query_rewrite_plugins/include/install_rewriter.inc
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--echo #
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--echo # We now try 6 rules with various errors in them:
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--echo #
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SHOW STATUS LIKE 'Rewriter_reload_error';
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SHOW STATUS LIKE 'Rewriter_number_loaded_rules';
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--echo # 1. Syntax error in the replacement.
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INSERT INTO query_rewrite.rewrite_rules ( pattern, replacement )
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VALUES ( 'SELECT c1 FROM test.t1 WHERE c1 = ?', 'SELECT c1 FROM test.t2 WHERE q c1 = ?' );
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--error ER_SIGNAL_EXCEPTION
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CALL query_rewrite.flush_rewrite_rules();
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SHOW STATUS LIKE 'Rewriter_reload_error';
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SHOW STATUS LIKE 'Rewriter_number_loaded_rules';
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SELECT c1 FROM test.t1 WHERE c1 = 'abc';
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SELECT * FROM query_rewrite.rewrite_rules;
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--echo # 2. No error.
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INSERT INTO query_rewrite.rewrite_rules ( pattern, replacement )
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VALUES ( 'SELECT c1 FROM test.t1', 'SELECT * FROM test.t1' );
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--error ER_SIGNAL_EXCEPTION
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CALL query_rewrite.flush_rewrite_rules();
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SHOW STATUS LIKE 'Rewriter_reload_error';
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SHOW STATUS LIKE 'Rewriter_number_loaded_rules';
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SELECT * FROM query_rewrite.rewrite_rules;
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--echo # 3. Syntax error in the pattern.
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INSERT INTO query_rewrite.rewrite_rules ( pattern, replacement )
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VALUES ( 'SELECT c1 FROM test.t1 WHERE dqdq c1 = ? OR c2 = ?',
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'SELECT * FROM test.t1 WHERE c2 = ? OR c1 = ?' );
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--error ER_SIGNAL_EXCEPTION
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CALL query_rewrite.flush_rewrite_rules();
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SHOW STATUS LIKE 'Rewriter_reload_error';
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SHOW STATUS LIKE 'Rewriter_number_loaded_rules';
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SELECT * FROM query_rewrite.rewrite_rules;
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--echo # 4 Empty/NULL replacement/pattern
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INSERT INTO query_rewrite.rewrite_rules ( pattern, replacement )
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VALUES ( 'SELECT c1 FROM test.t1 WHERE c2 = ?', '' );
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--error ER_SIGNAL_EXCEPTION
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CALL query_rewrite.flush_rewrite_rules();
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SHOW STATUS LIKE 'Rewriter_reload_error';
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SHOW STATUS LIKE 'Rewriter_number_loaded_rules';
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SELECT * FROM query_rewrite.rewrite_rules;
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DELETE FROM query_rewrite.rewrite_rules
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WHERE pattern = 'SELECT c1 FROM test.t1 WHERE c2 = ?';
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ALTER TABLE query_rewrite.rewrite_rules
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MODIFY COLUMN replacement VARCHAR(10000) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin;
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INSERT INTO query_rewrite.rewrite_rules ( pattern )
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VALUES ( 'SELECT c1 FROM test.t1 WHERE c2 = ?' );
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--error ER_SIGNAL_EXCEPTION
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CALL query_rewrite.flush_rewrite_rules();
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SHOW STATUS LIKE 'Rewriter_reload_error';
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SHOW STATUS LIKE 'Rewriter_number_loaded_rules';
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SELECT * FROM query_rewrite.rewrite_rules;
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DELETE FROM query_rewrite.rewrite_rules
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WHERE pattern = 'SELECT c1 FROM test.t1 WHERE c2 = ?';
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ALTER TABLE query_rewrite.rewrite_rules
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MODIFY COLUMN pattern VARCHAR(5000) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin;
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INSERT INTO query_rewrite.rewrite_rules ( replacement )
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VALUES ( 'SELECT c1 FROM test.t1 WHERE c2 = ?' );
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--error ER_SIGNAL_EXCEPTION
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CALL query_rewrite.flush_rewrite_rules();
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SHOW STATUS LIKE 'Rewriter_reload_error';
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SHOW STATUS LIKE 'Rewriter_number_loaded_rules';
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SELECT * FROM query_rewrite.rewrite_rules;
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--echo # 5 More parameters in the replacement than the pattern
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INSERT INTO query_rewrite.rewrite_rules ( pattern, replacement )
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VALUES
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( 'SELECT * FROM test.t1 WHERE c1 = ?', 'SELECT * FROM test.t2 WHERE c2 = ? AND c1 = ?' );
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--error ER_SIGNAL_EXCEPTION
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CALL query_rewrite.flush_rewrite_rules();
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SHOW STATUS LIKE 'Rewriter_reload_error';
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SHOW STATUS LIKE 'Rewriter_number_loaded_rules';
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SELECT * FROM test.t1 WHERE c1 = 'abc';
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SELECT * FROM query_rewrite.rewrite_rules;
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--echo # 6 A replacement that does not have syntax errors in itself, but the
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--echo # rewritten query does.
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INSERT INTO query_rewrite.rewrite_rules ( pattern, replacement )
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VALUES ( 'SELECT "Fail, please", ?', 'SELECT 1 LIMIT ?' );
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--error ER_SIGNAL_EXCEPTION
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CALL query_rewrite.flush_rewrite_rules();
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SELECT * FROM query_rewrite.rewrite_rules;
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SHOW STATUS LIKE 'Rewriter_reload_error';
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SHOW STATUS LIKE 'Rewriter_number_loaded_rules';
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SET @@global.rewriter_verbose = 2;
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--error ER_PARSE_ERROR
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SELECT 'Fail, please', 'a';
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--echo # Check that the one rule without errors is still rewritten and executed.
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SELECT c1 FROM test.t1;
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--echo # Fix rule 1 (error in the replacement.)
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UPDATE query_rewrite.rewrite_rules
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SET replacement = 'SELECT c1 FROM test.t2 WHERE c1 = ?', enabled = 'YES'
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WHERE pattern = 'SELECT c1 FROM test.t1 WHERE c1 = ?';
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--error ER_SIGNAL_EXCEPTION
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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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SELECT c1 FROM test.t1 WHERE c1 = 'abc';
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SELECT c1 FROM test.t2 WHERE c1 = 'tuv';
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SELECT * FROM query_rewrite.rewrite_rules;
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--echo # Check that the rule without error is still executed and rewritten.
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SELECT c1 FROM test.t1;
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--echo # Remove all the rules that cause errors.
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DELETE FROM query_rewrite.rewrite_rules WHERE pattern <> 'SELECT c1 FROM test.t1';
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DELETE FROM query_rewrite.rewrite_rules WHERE pattern IS NULL;
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DELETE FROM query_rewrite.rewrite_rules WHERE replacement IS NULL;
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SHOW STATUS LIKE 'Rewriter_reload_error';
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SHOW STATUS LIKE 'Rewriter_number_loaded_rules';
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SHOW STATUS LIKE 'Rewriter_number_reloads';
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--echo # Check that a rule that used to have syntax error now works fine.
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SELECT c1 FROM t1 WHERE c1 = 'abc';
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--echo # Check that the rule without error is still executed and rewritten.
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SELECT c1 FROM test.t1;
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--echo # A rule with parse error followed by a correct rule should still turn
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--echo # Rewriter_reload_error to true.
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DELETE FROM query_rewrite.rewrite_rules;
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INSERT INTO query_rewrite.rewrite_rules ( pattern, replacement )
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VALUES ( 'error', 'error' ),
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( 'select 1', 'select 2' );
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--error ER_SIGNAL_EXCEPTION
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CALL query_rewrite.flush_rewrite_rules();
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SELECT * FROM query_rewrite.rewrite_rules;
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SHOW STATUS LIKE 'Rewriter_reload_error';
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--echo #
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--echo # Test of what happens if pfs digests are turned off.
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--echo #
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UPDATE performance_schema.setup_consumers
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SET enabled = 'NO'
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WHERE NAME = 'statements_digest';
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--echo # Rewrites should still work.
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SELECT 1;
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PREPARE stmt1 FROM 'SELECT 1';
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EXECUTE stmt1;
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--echo # Restore the setting.
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UPDATE performance_schema.setup_consumers
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SET enabled = 'YES'
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WHERE NAME = 'statements_digest';
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--echo # Let's try to uninstall the plugin the wrong way, that is, not using the
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--echo # script. The library will not be unloaded so we can still call the UDF
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--echo # but it should return an error.
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UNINSTALL PLUGIN rewriter;
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--source include/disconnect_connections.inc
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--error ER_CANT_INITIALIZE_UDF
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CALL query_rewrite.flush_rewrite_rules();
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--error ER_CANT_INITIALIZE_UDF
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SELECT load_rewrite_rules();
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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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DROP TABLE t1, t2;
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