security-admin/db/mysql/patches/040-modify-unique-constraint-on-policy-table.sql

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drop procedure if exists create_unique_constraint_on_name_service_zone;

delimiter ;;
create procedure create_unique_constraint_on_name_service_zone() begin
 /* check tables exist or not */
	if exists (select * from information_schema.columns where table_schema=database() and table_name = 'x_policy' and column_name in('service','name','zone_id')) then
		/* check unique constraint exist on service and name column or not */
		if exists (select * from information_schema.table_constraints where table_schema=database() and table_name = 'x_policy' and constraint_name='x_policy_UK_name_service') then
			ALTER TABLE x_policy DROP INDEX x_policy_UK_name_service;
		end if;
		if not exists (select * from information_schema.table_constraints where table_schema=database() and table_name = 'x_policy' and constraint_name='x_policy_UK_name_service_zone') then
			ALTER TABLE x_policy ADD UNIQUE INDEX x_policy_UK_name_service_zone(name(180),service,zone_id);
		end if;
	end if;
end;;

delimiter ;
call create_unique_constraint_on_name_service_zone();

drop procedure if exists create_unique_constraint_on_name_service_zone;