From dc83ae9dcb4df19959fe9add34c08203b05ed7b0 Mon Sep 17 00:00:00 2001
From: Zhongshuai Pei <799203320@qq.com>
Date: Thu, 30 Apr 2015 09:27:08 +0800
Subject: [PATCH] Update FilterPushdownSuite.scala

---
 .../catalyst/optimizer/FilterPushdownSuite.scala | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/FilterPushdownSuite.scala b/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/FilterPushdownSuite.scala
index aa9708b164efa..3c7131c495071 100644
--- a/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/FilterPushdownSuite.scala
+++ b/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/FilterPushdownSuite.scala
@@ -90,7 +90,23 @@ class FilterPushdownSuite extends PlanTest {
 
     comparePlans(optimized, correctAnswer)
   }
+  
+  test("column pruning for Project(ne, Limit)") {
+    val originalQuery =
+      testRelation
+        .select('a,'b)
+        .limit(2)
+        .select('a)
 
+    val optimized = Optimize(originalQuery.analyze)
+    val correctAnswer =
+      testRelation
+        .select('a)
+        .limit(2).analyze
+
+    comparePlans(optimized, correctAnswer)
+  }
+  
   // After this line is unimplemented.
   test("simple push down") {
     val originalQuery =