Function dateAdd

dateAdd(a0: Timestamptz<0 | 1>, a1: Interval<0 | 1>): Timestamptz<0 | 1>

dateAdd(
    a0: Timestamptz<0 | 1>,
    a1: Interval<0 | 1>,
    a2: Text<0 | 1>,
): Timestamptz<0 | 1>