fix: arrow filter on RPC returning TABLE+composite

test/spec/Feature/Query/JsonOperatorSpec.hs

@@ -300,3 +300,11 @@ spec actualPgVersion = describe "json and jsonb operators" $ do
          "code": "PGRST100",
          "hint": null} |]
       { matchStatus = 400, matchHeaders = [matchContentTypeJson] }
+
+  it "works when an RPC returns a dynamic TABLE with a composite type" $
+    get "/rpc/returns_complex?select=val->r&val->i=gt.0.5&order=val->>i.desc" `shouldRespondWith`
+      [json|[
+        {"r":0.3},
+        {"r":0.2}
+      ]|]
+      { matchStatus = 200, matchHeaders = [matchContentTypeJson] }

test/spec/fixtures/schema.sql

@@ -3447,3 +3447,12 @@ create table table_b (
   table_a_id int references table_a(id),
   name text
 );
+
+create or replace function test.returns_complex()
+returns table(id int, val complex) as $$
+  select 1, row(0.1, 0.5)::complex as val
+  union
+  select 2, row(0.2, 0.6)::complex as val
+  union
+  select 3, row(0.3, 0.7)::complex as val;
+$$ language sql;