Function jsonb_get_string

src/expr/src/scalar/func.rs:1684–1688

(a: JsonbRef<'a>, k: &str)

#[sqlfunc(sqlname = "->", is_infix_op = true)]
fn jsonb_get_string<'a>(a: JsonbRef<'a>, k: &str) -> Option<JsonbRef<'a>> {
    let dict = DatumMap::try_from_result(Ok::<_, ()>(a.into_datum())).ok()?;
    let v = dict.iter().find(|(k2, _v)| k == *k2).map(|(_k, v)| v)?;
    JsonbRef::try_from_result(Ok::<_, ()>(v)).ok()
}

#[sqlfunc(sqlname = "->>", is_infix_op = true)]
fn jsonb_get_string_stringify<'a>(