From 617484c8f191cb249ccf6b93e42e351c54892238 Mon Sep 17 00:00:00 2001
From: "Raphael S. Carvalho" <raphaelsc@cloudius-systems.com>
Date: Thu, 21 May 2015 14:39:04 -0300
Subject: [PATCH] sstables: use u-ref to avoid copy of partitions

Suggested-by: Tomasz Grabiec <tgrabiec@cloudius-systems.com>
Signed-off-by: Raphael S. Carvalho <raphaelsc@cloudius-systems.com>
---
 sstables/sstables.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sstables/sstables.cc b/sstables/sstables.cc
index e158e81de7..c6b181fb32 100644
--- a/sstables/sstables.cc
+++ b/sstables/sstables.cc
@@ -1047,7 +1047,7 @@ static future<> write_index_entry(file_writer& out, disk_string_view<uint16_t>&
 static constexpr int BASE_SAMPLING_LEVEL = 128;
 
 static void prepare_summary(summary& s, const memtable& mt) {
-    auto all_partitions = mt.all_partitions();
+    auto&& all_partitions = mt.all_partitions();
     assert(all_partitions.size() >= 1);
 
     s.header.min_index_interval = BASE_SAMPLING_LEVEL;