diff --git a/test/spec/Feature/Query/RelatedQueriesSpec.hs b/test/spec/Feature/Query/RelatedQueriesSpec.hs
index 0db178cf9d..bd25a91577 100644
--- a/test/spec/Feature/Query/RelatedQueriesSpec.hs
+++ b/test/spec/Feature/Query/RelatedQueriesSpec.hs
@@ -256,3 +256,15 @@ spec = describe "related queries" $ do
         { matchStatus  = 200
         , matchHeaders = [matchContentTypeJson]
         }
+
+    -- "?table=not.is.null" does a "NOT table IS NULL" instead of a "table IS NOT NULL"
+    -- https://github.com/PostgREST/postgrest/issues/2800#issuecomment-1562620508
+    it "embeds even if the target relationship has a row with a NULL value in any of its columns" $
+      get "/table_b?select=name,table_a(name)&table_a=not.is.null" `shouldRespondWith`
+        [json|[
+          {"name":"Test 1","table_a":{"name":"Not null"}},
+          {"name":"Test 2","table_a":{"name":null}}
+        ]|]
+        { matchStatus  = 200
+        , matchHeaders = [matchContentTypeJson]
+        }
diff --git a/test/spec/fixtures/data.sql b/test/spec/fixtures/data.sql
index a2ba2e24fc..1d54d14bcb 100644
--- a/test/spec/fixtures/data.sql
+++ b/test/spec/fixtures/data.sql
@@ -853,3 +853,8 @@ INSERT INTO datarep_next_two_todos VALUES (2, 1, 3, 'do these first');
 TRUNCATE TABLE bitchar_with_length CASCADE;
 INSERT INTO bitchar_with_length(bit, char) VALUES ('00000', 'aaaaa');
 INSERT INTO bitchar_with_length(bit, char) VALUES ('11111', 'bbbbb');
+
+TRUNCATE TABLE table_a CASCADE;
+INSERT INTO table_a(id, name) VALUES (1, 'Not null'), (2, null);
+TRUNCATE TABLE table_b CASCADE;
+INSERT INTO table_b(table_a_id, name) VALUES (1, 'Test 1'), (2, 'Test 2');
diff --git a/test/spec/fixtures/schema.sql b/test/spec/fixtures/schema.sql
index f01b5efb20..9a0fa2fd74 100644
--- a/test/spec/fixtures/schema.sql
+++ b/test/spec/fixtures/schema.sql
@@ -3437,3 +3437,13 @@ begin
       message = '{"code":"123","message":"ABC","details":"DEF"}';
 end
 $$;
+
+create table table_a (
+  id int primary key,
+  name text
+);
+
+create table table_b (
+  table_a_id int references table_a(id),
+  name text
+);