# Header section
# Define incrementing schema version number
SET @schema_version = '17';

# Add template field for group elements
ALTER TABLE `custom_fields` ADD COLUMN `group_template` text AFTER `group`;

# Footer section
LOCK TABLES `settings` WRITE;
INSERT INTO `settings` (`key`, `value`) VALUES('db_schema_version', @schema_version) ON DUPLICATE KEY UPDATE `value`=@schema_version;
UNLOCK TABLES;