--- r.dump.head	2020-02-03 14:16:15.774305437 -0500
+++ r.dump.patch	2020-02-03 14:18:08.599109703 -0500
@@ -15244,14 +15244,7 @@
 -- Name: gtest1_1 b; Type: DEFAULT; Schema: public; Owner: postgres
 --
 
-ALTER TABLE ONLY public.gtest1_1 ALTER COLUMN b SET DEFAULT (a * 2);
-
-
---
--- Name: gtest30_1 b; Type: DEFAULT; Schema: public; Owner: postgres
---
-
-ALTER TABLE ONLY public.gtest30_1 ALTER COLUMN b SET DEFAULT (a * 2);
+ALTER TABLE ONLY public.gtest1_1 ALTER COLUMN b SET DEFAULT NULL;
 
 
 --