Function jsonb_array_elements_stringify

src/expr/src/relation/func.rs:2944–2958

(
    a: Datum<'a>,
    temp_storage: &'a RowArena,
)

}

fn jsonb_array_elements_stringify<'a>(
    a: Datum<'a>,
    temp_storage: &'a RowArena,
) -> impl Iterator<Item = (Row, Diff)> + 'a {
    let list = match a {
        Datum::List(list) => list,
        _ => mz_repr::DatumList::empty(),
    };
    list.iter().map(move |mut e| {
        e = jsonb_stringify(e, temp_storage)
            .map(Datum::String)
            .unwrap_or(Datum::Null);
        (Row::pack_slice(&[e]), Diff::ONE)
    })
}

fn regexp_extract(a: Datum, r: &AnalyzedRegex) -> Option<(Row, Diff)> {
    let r = r.inner();