Created
October 16, 2018 12:16
-
-
Save tvlooy/c6bd914edd2f6e54beac4f7d8a80d11b to your computer and use it in GitHub Desktop.
Recheck InnoDB foreign keys on all tables (https://stackoverflow.com/questions/2250775/force-innodb-to-recheck-foreign-keys-on-a-table-tables)
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
DELIMITER $$ | |
DROP PROCEDURE IF EXISTS ANALYZE_INVALID_FOREIGN_KEYS$$ | |
CREATE | |
PROCEDURE `ANALYZE_INVALID_FOREIGN_KEYS`( | |
checked_database_name VARCHAR(64), | |
checked_table_name VARCHAR(64), | |
temporary_result_table ENUM('Y', 'N')) | |
LANGUAGE SQL | |
NOT DETERMINISTIC | |
READS SQL DATA | |
BEGIN | |
DECLARE TABLE_SCHEMA_VAR VARCHAR(64); | |
DECLARE TABLE_NAME_VAR VARCHAR(64); | |
DECLARE COLUMN_NAME_VAR VARCHAR(64); | |
DECLARE CONSTRAINT_NAME_VAR VARCHAR(64); | |
DECLARE REFERENCED_TABLE_SCHEMA_VAR VARCHAR(64); | |
DECLARE REFERENCED_TABLE_NAME_VAR VARCHAR(64); | |
DECLARE REFERENCED_COLUMN_NAME_VAR VARCHAR(64); | |
DECLARE KEYS_SQL_VAR VARCHAR(1024); | |
DECLARE done INT DEFAULT 0; | |
DECLARE foreign_key_cursor CURSOR FOR | |
SELECT | |
`TABLE_SCHEMA`, | |
`TABLE_NAME`, | |
`COLUMN_NAME`, | |
`CONSTRAINT_NAME`, | |
`REFERENCED_TABLE_SCHEMA`, | |
`REFERENCED_TABLE_NAME`, | |
`REFERENCED_COLUMN_NAME` | |
FROM | |
information_schema.KEY_COLUMN_USAGE | |
WHERE | |
`CONSTRAINT_SCHEMA` LIKE checked_database_name AND | |
`TABLE_NAME` LIKE checked_table_name AND | |
`REFERENCED_TABLE_SCHEMA` IS NOT NULL; | |
DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = 1; | |
IF temporary_result_table = 'N' THEN | |
DROP TEMPORARY TABLE IF EXISTS INVALID_FOREIGN_KEYS; | |
DROP TABLE IF EXISTS INVALID_FOREIGN_KEYS; | |
CREATE TABLE INVALID_FOREIGN_KEYS( | |
`TABLE_SCHEMA` VARCHAR(64), | |
`TABLE_NAME` VARCHAR(64), | |
`COLUMN_NAME` VARCHAR(64), | |
`CONSTRAINT_NAME` VARCHAR(64), | |
`REFERENCED_TABLE_SCHEMA` VARCHAR(64), | |
`REFERENCED_TABLE_NAME` VARCHAR(64), | |
`REFERENCED_COLUMN_NAME` VARCHAR(64), | |
`INVALID_KEY_COUNT` INT, | |
`INVALID_KEY_SQL` VARCHAR(1024) | |
); | |
ELSEIF temporary_result_table = 'Y' THEN | |
DROP TEMPORARY TABLE IF EXISTS INVALID_FOREIGN_KEYS; | |
DROP TABLE IF EXISTS INVALID_FOREIGN_KEYS; | |
CREATE TEMPORARY TABLE INVALID_FOREIGN_KEYS( | |
`TABLE_SCHEMA` VARCHAR(64), | |
`TABLE_NAME` VARCHAR(64), | |
`COLUMN_NAME` VARCHAR(64), | |
`CONSTRAINT_NAME` VARCHAR(64), | |
`REFERENCED_TABLE_SCHEMA` VARCHAR(64), | |
`REFERENCED_TABLE_NAME` VARCHAR(64), | |
`REFERENCED_COLUMN_NAME` VARCHAR(64), | |
`INVALID_KEY_COUNT` INT, | |
`INVALID_KEY_SQL` VARCHAR(1024) | |
); | |
END IF; | |
OPEN foreign_key_cursor; | |
foreign_key_cursor_loop: LOOP | |
FETCH foreign_key_cursor INTO | |
TABLE_SCHEMA_VAR, | |
TABLE_NAME_VAR, | |
COLUMN_NAME_VAR, | |
CONSTRAINT_NAME_VAR, | |
REFERENCED_TABLE_SCHEMA_VAR, | |
REFERENCED_TABLE_NAME_VAR, | |
REFERENCED_COLUMN_NAME_VAR; | |
IF done THEN | |
LEAVE foreign_key_cursor_loop; | |
END IF; | |
SET @from_part = CONCAT('FROM ', '`', TABLE_SCHEMA_VAR, '`.`', TABLE_NAME_VAR, '`', ' AS REFERRING ', | |
'LEFT JOIN `', REFERENCED_TABLE_SCHEMA_VAR, '`.`', REFERENCED_TABLE_NAME_VAR, '`', ' AS REFERRED ', | |
'ON (REFERRING', '.`', COLUMN_NAME_VAR, '`', ' = ', 'REFERRED', '.`', REFERENCED_COLUMN_NAME_VAR, '`', ') ', | |
'WHERE REFERRING', '.`', COLUMN_NAME_VAR, '`', ' IS NOT NULL ', | |
'AND REFERRED', '.`', REFERENCED_COLUMN_NAME_VAR, '`', ' IS NULL'); | |
SET @full_query = CONCAT('SELECT COUNT(*) ', @from_part, ' INTO @invalid_key_count;'); | |
PREPARE stmt FROM @full_query; | |
EXECUTE stmt; | |
IF @invalid_key_count > 0 THEN | |
INSERT INTO | |
INVALID_FOREIGN_KEYS | |
SET | |
`TABLE_SCHEMA` = TABLE_SCHEMA_VAR, | |
`TABLE_NAME` = TABLE_NAME_VAR, | |
`COLUMN_NAME` = COLUMN_NAME_VAR, | |
`CONSTRAINT_NAME` = CONSTRAINT_NAME_VAR, | |
`REFERENCED_TABLE_SCHEMA` = REFERENCED_TABLE_SCHEMA_VAR, | |
`REFERENCED_TABLE_NAME` = REFERENCED_TABLE_NAME_VAR, | |
`REFERENCED_COLUMN_NAME` = REFERENCED_COLUMN_NAME_VAR, | |
`INVALID_KEY_COUNT` = @invalid_key_count, | |
`INVALID_KEY_SQL` = CONCAT('SELECT ', | |
'REFERRING.', '`', COLUMN_NAME_VAR, '` ', 'AS "Invalid: ', COLUMN_NAME_VAR, '", ', | |
'REFERRING.* ', | |
@from_part, ';'); | |
END IF; | |
DEALLOCATE PREPARE stmt; | |
END LOOP foreign_key_cursor_loop; | |
END$$ | |
DELIMITER ; | |
CALL ANALYZE_INVALID_FOREIGN_KEYS('%', '%', 'Y'); | |
DROP PROCEDURE IF EXISTS ANALYZE_INVALID_FOREIGN_KEYS; | |
SELECT * FROM INVALID_FOREIGN_KEYS; |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment