diff --git a/localtests/drop-null-add-not-null/ghost_columns b/localtests/drop-null-add-not-null/ghost_columns
new file mode 100644
index 0000000..16f9ec0
--- /dev/null
+++ b/localtests/drop-null-add-not-null/ghost_columns
@@ -0,0 +1 @@
+c2
diff --git a/localtests/drop-null-add-not-null/orig_columns b/localtests/drop-null-add-not-null/orig_columns
new file mode 100644
index 0000000..16f9ec0
--- /dev/null
+++ b/localtests/drop-null-add-not-null/orig_columns
@@ -0,0 +1 @@
+c2