fix: aliasing on computed rels

test/spec/Feature/Query/ComputedRelsSpec.hs

@@ -107,3 +107,12 @@ spec = describe "computed relationships" $ do
     get "/second_1?select=*,first_1(*)"
       `shouldRespondWith`
       [json|[]|] { matchHeaders = [matchContentTypeJson] }
+
+  -- https://github.com/PostgREST/postgrest/issues/2455
+  it "creates queries with the right aliasing" $ do
+    get "/fee?select=*,jsbaz(*,janedoe(*))"
+      `shouldRespondWith`
+      [json|[]|] { matchHeaders = [matchContentTypeJson] }
+    get "/fee?select=*,jsbaz(*,johnsmith(*, fee(*)))"
+      `shouldRespondWith`
+      [json|[]|] { matchHeaders = [matchContentTypeJson] }

test/spec/fixtures/privileges.sql

@@ -210,6 +210,10 @@ GRANT ALL ON TABLE
     , second
     , first_1
     , second_1
+    , fee
+    , baz
+    , janedoe
+    , johnsmith
 TO postgrest_test_anonymous;
 
 GRANT INSERT ON TABLE insertonly TO postgrest_test_anonymous;

test/spec/fixtures/schema.sql

@@ -2836,3 +2836,29 @@ $$ LANGUAGE sql STABLE ROWS 1;
 CREATE FUNCTION test.first_1(test.second_1) RETURNS SETOF test.first_1 AS $$
   SELECT * FROM test.first_1 WHERE second_id_1 = $1.id;
 $$ LANGUAGE sql STABLE ROWS 1;
+
+
+create table fee (
+  fee_id int primary key
+);
+create table baz (
+  baz_id int primary key
+);
+
+create table janedoe (
+  janedoe_id int primary key,
+  baz_id int references baz(baz_id)
+);
+
+create table johnsmith (
+  johnsmith_id int primary key,
+  fee_id int references fee(fee_id),
+  baz_id int references baz(baz_id)
+);
+
+create or replace function jsbaz(fee) returns setof baz as $$
+    select b.*
+    from baz b
+    join johnsmith js on js.baz_id = b.baz_id
+    where js.fee_id = $1.fee_id
+$$ stable language sql;