Create Table and Function Returns a Table

CREATE TABLE IDENTITAS
(
NIK             INTEGER         UNIQUE      PRIMARY KEY,
Nama            VARCHAR(60)     NOT NULL,
Tanggal_lahir   DATE            NOT NULL,
Tempat_lahir    VARCHAR(20)     NOT NULL,
Alamat          VARCHAR(200)    NOT NULL
);

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INSERT INTO IDENTITAS(NIK, Nama, Tanggal_lahir, Tempat_lahir, Alamat)
VALUES(268791837, 'Muhammad Dzaky Bahrul Ilmi', 'London', 2000-01-17, 'Bandung');

INSERT INTO IDENTITAS(NIK, Nama, Tanggal_lahir, Tempat_lahir, Alamat)
VALUES(264872862, 'Muhammad Rafi Bahrur Rizki', 'London', 1990-05-17, 'Bandung');

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CREATE OR REPLACE FUNCTION get_Identitas(Name VARCHAR)
RETURNS TABLE (
NIK     INTEGER,
Nama    VARCHAR
)
AS $$
BEGIN
    RETURN QUERY
    SELECT
        IDENTITAS.NIK,
        IDENTITAS.Nama
    FROM
        IDENTITAS
    WHERE
        Alamat = Name;
END; $$

Language plpgsql;

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SELECT * FROM get_Identitas('Bandung');