From 21ff8a493206cd50558b03975a7eaaaeb6ec7900 Mon Sep 17 00:00:00 2001
From: Andrew White <andrew.white@unboxed.co>
Date: Sat, 4 Mar 2017 11:15:00 +0000
Subject: [PATCH] [ci skip] Add CHANGELOG entry for #28282

---
 activerecord/CHANGELOG.md | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md
index 55773f2172..8d054a144a 100644
--- a/activerecord/CHANGELOG.md
+++ b/activerecord/CHANGELOG.md
@@ -1,3 +1,13 @@
+*   Don't share options between reference id and type columns
+
+    When using a polymorphic reference column in a migration, sharing options
+    between the two columns doesn't make sense since they are different types.
+    The `reference_id` column is usually an integer and the `reference_type`
+    column a string so options like `unsigned: true` will result in an invalid
+    table definition.
+
+    *Ryuta Kamizono*
+
 *   Use `max_identifier_length` for `index_name_length` in PostgreSQL adapter.
 
     *Ryuta Kamizono*
-- 
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