diff --git a/app/models/post/sql_methods.rb b/app/models/post/sql_methods.rb
index 07addf83..c93506dc 100644
--- a/app/models/post/sql_methods.rb
+++ b/app/models/post/sql_methods.rb
@@ -139,8 +139,14 @@ module PostSqlMethods
       end
 
       if q.has_key?(:pool)
-        if q.has_key?(:pool_posts) && q[:pool_posts] == "all"
-          conds << "(pools_posts.active OR pools_posts.master_id IS NOT NULL)"
+        if q.has_key?(:pool_posts)
+          if q[:pool_posts] == "all"
+            conds << "(pools_posts.active OR pools_posts.master_id IS NOT NULL)"
+          elsif q[:pool_posts] == "master"
+            conds << "(pools_posts.master_id IS NOT NULL)"
+          elsif q[:pool_posts] == "slave"
+            conds << "(pools_posts.active AND pools_posts.slave_id IS NOT NULL)"
+          end
         elsif q.has_key?(:pool_posts) && q[:pool_posts] == "orig"
           conds << "pools_posts.active = true"
         else