From 0c014138a78ed54a1468e95ce9ab9605958f0f83 Mon Sep 17 00:00:00 2001
From: Doyle <Doy-lee@users.noreply.github.com>
Date: Wed, 27 Feb 2019 12:36:15 +1100
Subject: [PATCH] Don't attempt an a db append for blacklisted outputs if empty
 (#450)

---
 src/blockchain_db/lmdb/db_lmdb.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/blockchain_db/lmdb/db_lmdb.cpp b/src/blockchain_db/lmdb/db_lmdb.cpp
index e469c86863..e56e9c607f 100644
--- a/src/blockchain_db/lmdb/db_lmdb.cpp
+++ b/src/blockchain_db/lmdb/db_lmdb.cpp
@@ -3933,6 +3933,9 @@ bool BlockchainLMDB::get_output_blacklist(std::vector<uint64_t> &blacklist) cons
 
 void BlockchainLMDB::add_output_blacklist(std::vector<uint64_t> const &blacklist)
 {
+  if (blacklist.size() == 0)
+    return;
+
   LOG_PRINT_L3("BlockchainLMDB::" << __func__);
   check_open();