From ae8a46c492e0ea37770c43d618913f5a1b41cc49 Mon Sep 17 00:00:00 2001
From: bluebore <shiguang31@163.com>
Date: Fri, 5 Jun 2015 19:03:03 +0800
Subject: [PATCH] BuildBatchGroup no longer skip NULL batch, for
 TEST_CompactMemTable

---
 db/db_impl.cc | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/db/db_impl.cc b/db/db_impl.cc
index 49b9595..d405e58 100644
--- a/db/db_impl.cc
+++ b/db/db_impl.cc
@@ -1275,6 +1275,8 @@ WriteBatch* DBImpl::BuildBatchGroup(Writer** last_writer) {
         WriteBatchInternal::Append(result, first->batch);
       }
       WriteBatchInternal::Append(result, w->batch);
+    } else {
+      break;
     }
     *last_writer = w;
   }