Function pg_return_null

pub unsafe fn pg_return_null(fcinfo: FunctionCallInfo) -> Datum

Modifies the specified fcinfo struct to indicate that its return value is null.

Examples

use pgx::pg_return_null;
use pgx::prelude::*;
fn foo(fcinfo: pg_sys::FunctionCallInfo) -> pg_sys::Datum {
    return unsafe { pg_return_null(fcinfo) };
}

Safety

This function is unsafe as we cannot ensure the fcinfo argument is a valid pg_sys::FunctionCallInfo pointer. This is your responsibility.