edgeql: Fix signature of `re_match`.
@@ -134,7 +134,7 @@ CREATE FUNCTION std::len(array<std::any>) -> std::int
CREATE FUNCTION std::random() -> std::float
FROM SQL FUNCTION 'random';
-CREATE FUNCTION std::re_match(std::str, std::str) -> SET OF array<std::str>
+CREATE FUNCTION std::re_match(std::str, std::str) -> array<std::str>
FROM SQL $$
SELECT regexp_matches($1, $2);
$$;
