--- orig	2007-07-02 11:45:27.000000000 -0400
+++ cached_model.rb	2007-07-02 11:43:59.000000000 -0400
@@ -146,7 +146,7 @@
   # Find by primary key from the cache.
 
   def self.find_by_sql(*args)
-    return super unless args.first =~ /^SELECT \* FROM #{table_name} WHERE \(#{table_name}\.#{primary_key} = '?(\d+)'?\) +LIMIT 1/
+    return super unless args.first =~ /^SELECT \* FROM #{table_name} WHERE \(#{table_name}\.\"?#{primary_key}\"? = '?(\d+)'?\)\s*[LIMIT 1]?$/i
     id = $1.to_i
 
     # Try to find the record in the local cache.