From 4a35b1b20ae9519c9a1f8a91da6ee6bc58183641 Mon Sep 17 00:00:00 2001
From: Gyu-Ho Lee <gyuhox@gmail.com>
Date: Fri, 7 Oct 2016 14:20:46 -0700
Subject: [PATCH] etcdserverpb: add 'prev_kb' to WatchCreateRequest

---
 etcdserver/etcdserverpb/rpc.proto | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/etcdserver/etcdserverpb/rpc.proto b/etcdserver/etcdserverpb/rpc.proto
index a15bfd603..5c04ccb8e 100644
--- a/etcdserver/etcdserverpb/rpc.proto
+++ b/etcdserver/etcdserverpb/rpc.proto
@@ -574,6 +574,9 @@ message WatchCreateRequest {
   // wish to recover a disconnected watcher starting from a recent known revision.
   // The etcd server may decide how often it will send notifications based on current load.
   bool progress_notify = 4;
+  // If prev_kv is set, created watcher gets the previous KV before the event happens.
+  // If the previous KV is already compacted, nothing will be returned.
+  bool prev_kv = 6;
 }
 
 message WatchCancelRequest {