security-admin/db/sqlserver/patches/057-add-unique-constraint-on-x_policy-table-guid-service-column.sql

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IF EXISTS(select * from INFORMATION_SCHEMA.columns where table_name = 'x_policy' and column_name in ('guid','service','zone_id'))
BEGIN
	IF NOT EXISTS(select * from INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE where table_name='x_policy' and column_name='guid' and constraint_name = 'x_policy$x_policy_UK_guid_service_zone')
	BEGIN
		IF NOT EXISTS(select * from INFORMATION_SCHEMA.TABLE_CONSTRAINTS where table_name='x_policy' and constraint_name = 'x_policy$x_policy_UK_guid_service_zone' and CONSTRAINT_TYPE='UNIQUE')
		BEGIN
			ALTER TABLE [dbo].[x_policy] ADD CONSTRAINT [x_policy$x_policy_UK_guid_service_zone] UNIQUE ([guid],[service],[zone_id]);
		END
	END
END
GO
exit