security-admin/db/mysql/patches/033-add-unique-constraint-on-table-x_policy.sql

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drop procedure if exists create_unique_constraint_on_name_service;

delimiter ;;
create procedure create_unique_constraint_on_name_service() 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')) then
		/* check unique constraint exist on service and name column or not */
		if not exists (select * from information_schema.columns where table_schema=database() and table_name = 'x_policy' and column_name in('name') and column_key in('UNI','MUL')) then
			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') then
				UPDATE x_policy set name=concat(name,'-duplicate-',id) where id in (select id from (select id from x_policy where concat(service,name) in (select concat(service,name) from x_policy group by service,name having count(*) >1)) as tmp);
				ALTER TABLE x_policy ADD UNIQUE INDEX x_policy_UK_name_service(name(180),service);
			end if;
		end if;
	end if;
end;;

delimiter ;
call create_unique_constraint_on_name_service();

drop procedure if exists create_unique_constraint_on_name_service;