-- Name: cluster_once(regclass, regclass); Type: FUNCTION; Schema: functions; Owner: -

--

CREATE FUNCTION cluster_once(table_ regclass, index regclass) RETURNS void

    LANGUAGE plpgsql STRICT

    AS $_$

BEGIN

    -- not yet clustered (ARRAY[] compares NULLs literally)

    IF ARRAY[functions.cluster_index(table_)] != ARRAY[index] THEN

        EXECUTE $$CLUSTER $$||table_||$$ USING $$||index;

    END IF;

END;

$_$;

--

-- Name: FUNCTION cluster_once(table_ regclass, index regclass); Type: COMMENT; Schema: functions; Owner: -

--

COMMENT ON FUNCTION cluster_once(table_ regclass, index regclass) IS 'idempotent';

--