END;
$$ LANGUAGE PLPGSQL STRICT VOLATILE;
+CREATE OR REPLACE FUNCTION migration_tools.assert (BOOLEAN,TEXT,TEXT) RETURNS TEXT AS $$
+ DECLARE
+ test ALIAS FOR $1;
+ fail_msg ALIAS FOR $2;
+ success_msg ALIAS FOR $3;
+ BEGIN
+ ASSERT test, fail_msg;
+ RETURN success_msg;
+ END;
+$$ LANGUAGE PLPGSQL STRICT VOLATILE;
+