message-db-temp-0.0.1.0: official-message-db-upstream/database/functions/cardinal-id.sql
CREATE OR REPLACE FUNCTION message_store.cardinal_id(
stream_name varchar
)
RETURNS varchar
AS $$
DECLARE
_id varchar;
BEGIN
_id := id(cardinal_id.stream_name);
IF _id IS NULL THEN
RETURN NULL;
END IF;
RETURN SPLIT_PART(_id, '+', 1);
END;
$$ LANGUAGE plpgsql
IMMUTABLE;