security-admin/db/sqlserver/patches/058-add-unique-constraint-on-x_policy-table-service-resourcesign-column.sql

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--     http://www.apache.org/licenses/LICENSE-2.0
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IF EXISTS(select * from INFORMATION_SCHEMA.columns where table_name = 'x_policy' and column_name = 'resource_signature')
BEGIN
	IF NOT EXISTS(select * from INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE where table_name='x_policy' and column_name='resource_signature' and constraint_name = 'x_policy$x_policy_UK_service_signature')
	BEGIN
		IF NOT EXISTS(select * from INFORMATION_SCHEMA.TABLE_CONSTRAINTS where table_name='x_policy' and constraint_name = 'x_policy$x_policy_UK_service_signature' and CONSTRAINT_TYPE='UNIQUE')
		BEGIN
			ALTER TABLE [dbo].[x_policy] ADD CONSTRAINT [x_policy$x_policy_UK_service_signature] UNIQUE ([service],[resource_signature]);
		END
	END
END
GO
exit