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cannot return non-composite value from function that returns composite type

Zarden answered on December 27, 2021 Popularity 3/10 Helpfulness 8/10

answer cannot return non-composite value from function that returns composite type

cannot return non-composite value from function that returns composite type

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--EXAMPLE OF A UPDATE FUNCTION WITH TRIGGER PLPGSQL

CREATE OR REPLACE FUNCTION update_aumentarpreco ()
    RETURNS TRIGGER
    LANGUAGE PLPGSQL
    AS 
    $BODY$
BEGIN
    IF NEW.ps_availqty = 2 THEN
        NEW.ps_supplycost = OLD.ps_supplycost * 0.10;
        RETURN NEW;
    END IF;
    RETURN NULL;
END;
$BODY$ 

CREATE TRIGGER update_aumentarpreco
    BEFORE UPDATE OF ps_availqty ON partsupp
    FOR EACH ROW
    EXECUTE PROCEDURE update_aumentarpreco ();

Popularity 3/10 Helpfulness 8/10 Language sql

Source: Grepper

Tags: composite function return sql

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Contributed on Dec 27 2021

Zarden

0 Answers Avg Quality 2/10

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cannot return non-composite value from function that returns composite type

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