Summe Spalten pro Zeile postgresql

Question

Ich habe Tabelle wie folgt aus:

CREATE TABLE public."Payments" 
(
    user_id integer, 
    "1 month later" numeric(19,4), 
    "2 months later" numeric(19,4), 
    "3 months later" numeric(19,4), 
    "4 months later" numeric(19,4), 
    "5 months later" numeric(19,4), 
    "6 months later" numeric(19,4), 
    "7 months later" numeric(19,4), 
    "8 months later" numeric(19,4), 
    "9 months later" numeric(19,4), 
    "10 months later" numeric(19,4), 
    "11 months later" numeric(19,4), 
    "12 months later" numeric(19,4) 

mit Daten innen für exampe wie folgt aus:

INSERT INTO "Payments" ("user_id", "1 month later", "2 months later", "3 months later", "4 months later", "5 months later", "6 months later", "7 months later", "8 months later", "9 months later", "10 months later", "11 months later", "12 months later") VALUES (134329, 190, 190, 190, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL); 

Ich brauche summ für jede Benutzer-ID zu bekommen, gibt es eine Menge von ihnen. Gibt es eine Funktion in Postgres, die das schnell erledigt?

Answer 1

Diese Frage ist ähnlich zu dieser stackoverflow Frage. Es ist eine einfache Verwendung der SUM-Aggregatfunktion.

how to group by and return sum row in Postgres

SELECT user_id, SUM("1 month later") as "1 month later",SUM("2 months later") as "2 months later",SUM("3 months later") as "3 months later",SUM("4 months later") as "4 months later",SUM("5 months later") as "5 months later",SUM("6 months later") as "6 months later",SUM("7 months later") as "7 months later",SUM("8 months later") as "8 months later",SUM("9 months later") as "9 months later",SUM("10 months later") as "10 months later",SUM("11 months later") as "11 months later", SUM("12 months later") as "12 months later" 
FROM public.payments 
GROUP BY user_id 

Zusätzlich, wenn der Benutzer dann fügen Sie einfach die Spalten eine Summe aller 12 Spalten will.

SELECT user_id, "1 month later" + "2 months later" + "3 months later" + "4 months later" + "5 months later" + "6 months later" + "7 months later" + "8 months later" + "9 months later" + "10 months later" + "11 months later" + "12 months later") as allMonthsLater FROM public.payments