Wie in getrennten Spalte mit PostgreSQL-Funktion()

Question

zurückgegeben wird Hier ist mein Skript, sobald ich das Skript ausführen, gibt es in einzelnen colomn mit Wert wie (val1, val2, val3, bla..bla bla ...

CREATE OR REPLACE FUNCTION meter_latest_read_custom() 
RETURNS TABLE(
    maxdate timestamp without time zone, 
    ertu integer, 
    meter integer, 
    meter_name character varying, 
    acq_9010 numeric) 
AS 
$BODY$ 
DECLARE 
    formal_table text; 
BEGIN 
    FOR formal_table IN 
    SELECT 
     quote_ident(table_name) 
    FROM 
     information_schema.tables 
    WHERE 
     table_schema = 'public' AND 
     table_name LIKE 'task%_1' 
    LOOP 
     RETURN QUERY EXECUTE 
     'with groupedft as (
     SELECT meter_id, MAX(acq_date) AS MaxDateTime 
      FROM ' ||formal_table|| ' GROUP BY meter_id), 
     foo as (
     SELECT 
      ft.acq_date AS maxdate, 
      ft.ertu_id AS ertu, 
      ft.meter_id AS meter, 
      ft.acq_9010 AS acq_9010 
     FROM 
      '||formal_table|| ' ft 
     INNER JOIN groupedft 
     ON 
      ft.meter_id = groupedft.meter_id 
      AND ft.acq_date = groupedft.MaxDateTime) 
     SELECT 
     maxdate, ertu, meter, m.meter_name, acq_9010 
     FROM 
     foo 
     LEFT JOIN 
     meter_record m 
     ON 
     foo.meter=m.meter_id 
     AND foo.ertu=m.ertu_id'; 

    END LOOP; 
END 
$BODY$ 
    LANGUAGE plpgsql VOLATILE 
    COST 100 
    ROWS 1000; 
ALTER FUNCTION meter_latest_read_custom() OWNER TO postgres; 

Das Ergebnis wird das Ergebnis Rückkehr in seperaten Spalte nicht in einer Spalte

"("2017-02-16 10:45:00",201,6,"SPARE 6",)" 
"("2017-02-16 10:45:00",201,14,"SPARE 14",)" 
"("2017-02-16 10:45:00",201,8,"SPARE 8",)" 
"("2017-02-16 10:45:00",201,12,"SPARE 12",)" 
"("2017-02-16 10:45:00",201,1,"E.CO-PUAS KAJANG/AC PANEL ETS",16986.00000)" 
"("2017-02-16 10:45:00",201,2,"SPARE 2",)" 
"("2017-02-16 10:45:00",201,3,"SPARE 3",)" 
"("2017-02-16 10:45:00",201,10,"SPARE 10",)" 
"("2017-02-16 10:45:00",201,11,"SPARE 11",)" 
"("2017-02-16 10:45:00",201,4,"SPARE 4",)" 

im Rückkehr in einzelnen Spalte, die erforderlich .. wo es zu ändern.?

------------------------------------------------------------------- 
| maxdate | ertu | meter | meter_name | acq_9010 | 
------------------------------------------------------------------- 
|   |   |   |    |    | 
|   |   |   |    |    | 
|   |   |   |    |    | 
|   |   |   |    |    | 
|   |   |   |    |    | 
|   |   |   |    |    | 
|   |   |   |    |    | 
|   |   |   |    |    | 

Answer 1

Versuchen Sie, diese Art und Weise

SELECT * FROM meter_latest_read_custom();