Function mz_expr::scalar::func::timezone_interval_timestamp

fn timezone_interval_timestamp(
    a: Datum<'_>,
    b: Datum<'_>,
) -> Result<Datum<'static>, EvalError>

Converts the timestamp datum b, which is assumed to be in the time of the timezone datum a to a timestamptz in UTC. The interval is not allowed to hold months, but there are no limits on the amount of seconds. The interval acts like a chrono::FixedOffset, without the -86,400 < x < 86,400 limitation.