How to put multiples results in just one column - Mailing list pgsql-sql

I have this function which already is used to get the rooms available
select  cms.sp_get_supplier_availability(2, '2013-02-01', '2013-02-02', 'pt_BR', 1, '{1}')

which result is a list of rooms ( type ) for a specific hotel.

("Apartment single",2117,"Apartamento Superior",1681,4,10,100.00,100.00,100.00,127.32,127.32,3,1,{1},)"
"("Apartment single 2",4981,"Apartamento Superior",1681,6,10,100.00,100.00,100.00,149.80,149.80,5,1,{1},)"
"("Apartment double",13862,"Apartamento Luxo",4311,11,10,100.00,100.00,100.00,107.99,107.99,2,1,{1},)"
"("Suite double",13867,"Suíte Executiva",4313,15,10,100.00,100.00,100.00,174.32,174.32,1,1,{1},)

I need to get one result of hotel's table and a way to return all the rows available in a single column as a array with all the data showed below.

Is that possible?

thank you,

CREATE OR REPLACE FUNCTION cms.sp_get_supplier_availability(in_supplier_id integer, in_checkin date, in_checkout date, in_culture character varying, in_room_qty integer, in_people_qty integer[])
  RETURNS SETOF cms.room_availability_list_type AS
$BODY$  DECLARE
    i INTEGER;
    AVAIL INTEGER[];
    DIFF_DAYS INTEGER;
    _room_availability cms.room_availability_list_type%rowtype;
    _room RECORD;
  BEGIN

    IF( supplier.available_for_booking( in_supplier_id ) IS FALSE ) THEN
        RETURN ;
    END IF;
   
    -- release
    IF(cms.sp_supplier_release(in_supplier_id, in_checkin) IS FALSE) THEN
      RETURN ;
    END IF;

    IF (cms.sp_supplier_is_unavailable(in_supplier_id, in_checkin, in_checkout)) THEN
      RETURN ;
    END IF;
   
   
    DIFF_DAYS := (IN_CHECKOUT - IN_CHECKIN);
    i:=0;
    AVAIL := NULL;

    IF IN_ROOM_QTY IS NULL AND IN_PEOPLE_QTY IS NULL THEN
      SELECT array_accum(ra.room_id) INTO AVAIL FROM cms.room_availability_list ra WHERE ra.supplier_id = IN_SUPPLIER_ID AND ra.day = IN_CHECKIN AND ra.room_real_availability > 0 AND ra.room_price >= 10 AND ra.room_allow_check_in IS TRUE;
    ELSE
      IF IN_PEOPLE_QTY IS NULL AND IN_ROOM_QTY IS NOT NULL THEN
        SELECT array_accum( DISTINCT ra.room_id) INTO AVAIL FROM cms.room_availability_list ra WHERE ra.supplier_id = IN_SUPPLIER_ID AND ra.day = IN_CHECKIN AND ra.room_real_availability > 0 AND ra.room_price >= 10 AND ra.room_allow_check_in IS TRUE GROUP BY ra.day HAVING sum(ra.room_real_availability) >= IN_ROOM_QTY;
      ELSE
        SELECT array_accum( DISTINCT ra.room_id) INTO AVAIL FROM cms.room_availability_list ra WHERE ra.supplier_id = IN_SUPPLIER_ID AND ra.day = IN_CHECKIN AND ra.room_real_availability > 0 AND ra.room_price >= 10 AND ra.room_allow_check_in IS TRUE AND ra.room_id IN (SELECT DISTINCT room_avail.room_id FROM cms.sp_get_room_people_capacity(IN_SUPPLIER_ID, IN_ROOM_QTY, IN_PEOPLE_QTY, in_culture) room_avail) GROUP BY ra.day HAVING sum(ra.room_real_availability) >= IN_ROOM_QTY;
      END IF;
    END IF;

    IF IN_ROOM_QTY IS NULL AND IN_PEOPLE_QTY IS NULL THEN

      SELECT array_accum( DISTINCT ra.room_id) INTO AVAIL
      FROM cms.room_availability ra
      INNER JOIN cms.quartos q ON ( ra.room_id = q.id )
      WHERE
    q.prestadores_id = IN_SUPPLIER_ID AND
    ra.day = IN_CHECKOUT AND
    ra.allow_check_out IS TRUE AND
    ra.room_id IN (SELECT explode_array(AVAIL) as data);

    ELSE

      IF IN_PEOPLE_QTY IS NULL THEN

        SELECT array_accum( DISTINCT ra.room_id) INTO AVAIL
        FROM cms.room_availability ra
        INNER JOIN cms.quartos q ON ( ra.room_id = q.id )
        WHERE
          q.prestadores_id = IN_SUPPLIER_ID AND
          ra.day = IN_CHECKOUT AND
          ra.allow_check_out IS TRUE AND
          ra.room_id IN (SELECT explode_array(AVAIL) as data)
        GROUP BY ra.day;

      ELSE

        SELECT array_accum( DISTINCT ra.room_id) INTO AVAIL
        FROM cms.room_availability ra
        INNER JOIN cms.quartos q ON ( ra.room_id = q.id )
        WHERE
          q.prestadores_id = IN_SUPPLIER_ID AND
          ra.day = IN_CHECKOUT AND
          ra.allow_check_out IS TRUE AND
          ra.room_id IN (SELECT explode_array(AVAIL) as data)
        GROUP BY ra.day;

      END IF;

    END IF;

    IF DIFF_DAYS > 1 THEN

      IF IN_ROOM_QTY IS NULL AND IN_PEOPLE_QTY IS NULL THEN

        SELECT array_accum( DISTINCT r.room_id) INTO AVAIL FROM (SELECT ra.room_id FROM cms.room_availability_list ra WHERE ra.supplier_id = IN_SUPPLIER_ID AND ra.day > IN_CHECKIN AND ra.day < IN_CHECKOUT AND ra.room_real_availability > 0 AND ra.room_price >= 10 AND ra.room_id IN (SELECT explode_array(AVAIL) as data) GROUP BY ra.room_id HAVING count(ra.room_id) = (DIFF_DAYS-1)) r;
      ELSE
        IF IN_PEOPLE_QTY IS NULL THEN

          SELECT array_accum( DISTINCT r.room_id) INTO AVAIL FROM (SELECT ra.room_id, min(ra.room_real_availability) as room_real_availability FROM cms.room_availability_list ra WHERE ra.supplier_id = IN_SUPPLIER_ID AND ra.day > IN_CHECKIN AND ra.day < IN_CHECKOUT AND ra.room_real_availability > 0 AND ra.room_price >= 10 AND ra.room_id IN (SELECT explode_array(AVAIL) as data) GROUP BY ra.room_id ) r HAVING sum(r.room_real_availability) >= IN_ROOM_QTY;
        ELSE
          --RAISE NOTICE 'busca quartos com disponibilidade para IN_PEOPLE_QTY is true';
          SELECT array_accum( DISTINCT r.room_id) INTO AVAIL FROM (SELECT ra.room_id, min(ra.room_real_availability) as room_real_availability FROM cms.room_availability_list ra WHERE ra.supplier_id = IN_SUPPLIER_ID AND ra.day > IN_CHECKIN AND ra.day < IN_CHECKOUT AND ra.room_real_availability > 0 AND ra.room_price >= 10 AND ra.room_id IN (SELECT explode_array(AVAIL) as data) AND ra.room_id IN (SELECT DISTINCT room_avail.room_id FROM cms.sp_get_room_people_capacity(IN_SUPPLIER_ID, IN_ROOM_QTY, IN_PEOPLE_QTY, in_culture) room_avail) GROUP BY ra.room_id ) r HAVING sum(r.room_real_availability) >= IN_ROOM_QTY;
        END IF;
      END IF;
    ELSE
      --RAISE NOTICE 'diff_days é igual a 1, nao faz nada';
    END IF;

    SELECT array_accum(room_id) INTO AVAIL FROM (
      SELECT DISTINCT ra.room_id
                 FROM cms.room_availability_list ra
                WHERE ra.room_id IN (SELECT explode_array(AVAIL) as data)
                  AND ra.day >= IN_CHECKIN
                  AND ra.day < IN_CHECKOUT
             GROUP BY ra.room_id
               HAVING max(ra.room_min_stay) <= DIFF_DAYS
    ) AS dados;

    IF AVAIL IS NULL THEN
      --RAISE NOTICE 'não encontrou disponibilidade, retorna vazio';
      return ;
    END IF;

    IF (SELECT array_int_len(AVAIL)) IS NOT NULL THEN

        --RAISE NOTICE 'ENTROU NO IF';
        FOR _room_availability IN SELECT ral.room_alias as room_name, ral.room_id as room_id, ral.room_group_name as room_group_name, ral.room_group_id as room_group_id, ral.room_order, min(room_real_availability) as availability_min, sum(ral.room_price) as price_amount, min(ral.room_price) as price_min, avg(ral.room_price) as price_min, sum(ral.room_balcony_price) as price_balcony_amount, avg(ral.room_balcony_price) as price_balcony_avg, ral.room_capacity as capacity, (SELECT DISTINCT(ral2.deposit_required) FROM cms.room_availability_list ral2 WHERE ral2.room_id = ral.room_id AND ral2.day = IN_CHECKIN AND ral2.culture = IN_CULTURE) as deposit_required, (SELECT array_accum( DISTINCT ral3.breakfast_included ) FROM cms.room_availability_list ral3 WHERE ral3.room_id = ral.room_id AND ral3.day >= IN_CHECKIN AND ral3.day < IN_CHECKOUT AND ral3.culture = IN_CULTURE) as breakfast_included FROM cms.room_availability_list ral WHERE ral.room_id IN (SELECT explode_array(AVAIL) as data) AND ral.day >= IN_CHECKIN AND ral.day < IN_CHECKOUT AND ral.culture = IN_CULTURE AND ral.room_price > 10 GROUP BY ral.room_id, ral.room_alias, ral.room_group_id, ral.room_group_name, ral.room_capacity, ral.room_order HAVING count(ral.room_id) = DIFF_DAYS ORDER BY ral.room_order, ral.room_alias LOOP

          RETURN NEXT _room_availability;

        END LOOP;

    END IF;

    return ;

  END;
$BODY$
  LANGUAGE plpgsql VOLATILE
  COST 100
  ROWS 1000;
ALTER FUNCTION cms.sp_get_supplier_availability(integer, date, date, character varying, integer, integer[])
  OWNER TO reserva;


CREATE TYPE cms.room_availability_list_type AS
   (room_name character varying,
    room_id integer,
    room_group_name character varying,
    room_group_id integer,
    room_order integer,
    availability_min smallint,
    price_amount numeric(10,2),
    price_min numeric(10,2),
    price_avg numeric(10,2),
    price_balcony_amount numeric(10,2),
    price_balcony_avg numeric(10,2),
    capacity smallint,
    deposit_required integer,
    breakfast_included integer[],
    room_min_stay smallint);
ALTER TYPE cms.room_availability_list_type
  OWNER TO reserva;