newznab-tmux/resources/db/patches/mysql/0294~collections.sql

# Add collection_regexes_id row to collections tables for tracking usage
#
DROP PROCEDURE IF EXISTS change_collections;
DELIMITER $$
CREATE PROCEDURE change_collections()
  BEGIN
    DECLARE done INT DEFAULT FALSE;
    DECLARE _table CHAR(255);
    DECLARE _stmt VARCHAR(1000);
    DECLARE cur1 CURSOR FOR
      SELECT TABLE_NAME
      FROM INFORMATION_SCHEMA.TABLES
      WHERE TABLE_SCHEMA = DATABASE()
            AND (TABLE_NAME LIKE "collections\_%" OR TABLE_NAME IN ("collections","multigroup_collections"));
    DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = TRUE;
    OPEN cur1;
    myloop: LOOP FETCH cur1
    INTO _table;
      IF done
      THEN LEAVE myloop; END IF;
      SET @sql1 := CONCAT("ALTER TABLE ", _table,
                          " ADD COLUMN collection_regexes_id INT SIGNED NOT NULL DEFAULT '0'",
                          " COMMENT 'FK to collection_regexes.id' AFTER collectionhash"
      );
      PREPARE _stmt FROM @sql1;
      EXECUTE _stmt;
      DROP PREPARE _stmt;
    END LOOP;
    CLOSE cur1;
  END $$
DELIMITER ;

CALL change_collections();
DROP PROCEDURE change_collections;