From 138141fd1d01bd9930b48eb8d2e69a83f7b416d9 Mon Sep 17 00:00:00 2001
From: David Li <David.M.Li@twosigma.com>
Date: Mon, 28 Jan 2019 11:50:58 -0500
Subject: [PATCH] Fix FromProto for FlightDescriptor

---
 cpp/src/arrow/flight/internal.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cpp/src/arrow/flight/internal.cc b/cpp/src/arrow/flight/internal.cc
index b4c6b2addcc11..629796ea36850 100644
--- a/cpp/src/arrow/flight/internal.cc
+++ b/cpp/src/arrow/flight/internal.cc
@@ -156,7 +156,7 @@ Status FromProto(const pb::FlightDescriptor& pb_descriptor,
                  FlightDescriptor* descriptor) {
   if (pb_descriptor.type() == pb::FlightDescriptor::PATH) {
     descriptor->type = FlightDescriptor::PATH;
-    descriptor->path.resize(pb_descriptor.path_size());
+    descriptor->path.reserve(pb_descriptor.path_size());
     for (int i = 0; i < pb_descriptor.path_size(); ++i) {
       descriptor->path.emplace_back(pb_descriptor.path(i));
     }