From 634d28e6cf536d2135e1dfd32a58a57441608216 Mon Sep 17 00:00:00 2001
From: kennyj <kennyj@gmail.com>
Date: Wed, 5 Dec 2012 01:12:46 +0900
Subject: Fix #8414. Performance problem with postgresql adapter primary_key
 function.

---
 activerecord/CHANGELOG.md | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'activerecord/CHANGELOG.md')

diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md
index aaaf27a211..a769a1c65e 100644
--- a/activerecord/CHANGELOG.md
+++ b/activerecord/CHANGELOG.md
@@ -1,5 +1,11 @@
 ## Rails 4.0.0 (unreleased) ##
 
+*   Fix performance problem with primary_key method in PostgreSQL adapter when having many schemas.
+    Uses pg_constraint table instead of pg_depend table which has many records in general.
+    Fix #8414
+
+    *kennyj*
+
 *   Do not instantiate intermediate Active Record objects when eager loading.
     These records caused `after_find` to run more than expected.
     Fix #3313
-- 
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