From 1b6137504c92cb31b750f72746fd64e58a9fe38d Mon Sep 17 00:00:00 2001
From: nishantmonu51 <nishant.monu51@gmail.com>
Date: Thu, 1 May 2014 21:32:27 +0530
Subject: [PATCH] Add toString for better logging

---
 .../src/main/java/io/druid/query/UnionDataSource.java     | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/processing/src/main/java/io/druid/query/UnionDataSource.java b/processing/src/main/java/io/druid/query/UnionDataSource.java
index 83b9f0acbe7..003ce86be47 100644
--- a/processing/src/main/java/io/druid/query/UnionDataSource.java
+++ b/processing/src/main/java/io/druid/query/UnionDataSource.java
@@ -101,4 +101,12 @@ public class UnionDataSource implements DataSource
   {
     return dataSources.hashCode();
   }
+
+  @Override
+  public String toString()
+  {
+    return "UnionDataSource{" +
+           "dataSources=" + dataSources +
+           '}';
+  }
 }