fix: fix incorrect 413 error on pg 54* errors

test/spec/Feature/Query/ErrorSpec.hs

@@ -67,3 +67,15 @@ pgErrorCodeMapping = do
   describe "PostreSQL error code mappings" $ do
     it "should return 500 for cardinality_violation" $
       get "/bad_subquery" `shouldRespondWith` 500
+
+    it "should return 500 for statement too complex" $
+      request methodPost "/infinite_inserts"
+        []
+        [json|{"id": 3, "name": "qwer"}|]
+        `shouldRespondWith`
+        [json|
+          {"code": "54001",
+           "details": null,
+           "hint": "Increase the configuration parameter \"max_stack_depth\" (currently 2048kB), after ensuring the platform's stack depth limit is adequate.",
+            "message": "stack depth limit exceeded"}|]
+        { matchStatus = 500 }

test/spec/fixtures/schema.sql

@@ -3777,3 +3777,20 @@ create or replace function temp_file_limit()
 returns bigint as $$
   select COUNT(*) FROM generate_series('-infinity'::TIMESTAMP, 'epoch'::TIMESTAMP, INTERVAL '1 DAY');
 $$ language sql security definer set temp_file_limit to '1kB';
+
+-- https://github.com/PostgREST/postgrest/issues/3255
+create table test.infinite_inserts(
+  id int
+, name text
+);
+
+create or replace function infinite_inserts()
+returns trigger as $$ begin
+  insert into infinite_inserts values (NEW.id, NEW.name);
+end $$ language plpgsql;
+
+create trigger do_infinite_inserts
+after insert
+on infinite_inserts
+for each row
+execute procedure infinite_inserts();