From 8a362a1c3cd7395279efb6d3b1ceaa2d238470ef Mon Sep 17 00:00:00 2001
From: Guo Xiang Tan <tgx_world@hotmail.com>
Date: Tue, 25 Jul 2017 15:36:30 +0900
Subject: [PATCH] Reset ActiveRecord cache after dropping columns.

---
 lib/column_dropper.rb | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/column_dropper.rb b/lib/column_dropper.rb
index 2cfc81c3175..7c77a25331c 100644
--- a/lib/column_dropper.rb
+++ b/lib/column_dropper.rb
@@ -38,6 +38,8 @@ class ColumnDropper
         DROP TRIGGER IF EXISTS #{readonly_trigger_name(table, column)} ON #{table};
         SQL
       end
+
+      Discourse.reset_active_record_cache
     end
   end