From 1c4b47fea2d03d6a4c0fd0725df00938f4c62afb Mon Sep 17 00:00:00 2001
From: Alexey Milovidov <milovidov@yandex-team.ru>
Date: Sun, 3 Nov 2013 06:39:13 +0000
Subject: [PATCH] dbms: SplittingAggregator: fixed error [#METR-2944].

---
 dbms/src/Interpreters/SplittingAggregator.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/dbms/src/Interpreters/SplittingAggregator.cpp b/dbms/src/Interpreters/SplittingAggregator.cpp
index 6abf0263788..aec42a9a6c1 100644
--- a/dbms/src/Interpreters/SplittingAggregator.cpp
+++ b/dbms/src/Interpreters/SplittingAggregator.cpp
@@ -140,6 +140,9 @@ void SplittingAggregator::execute(BlockInputStreamPtr stream, ManyAggregatedData
 
 void SplittingAggregator::convertToBlocks(ManyAggregatedDataVariants & data_variants, Blocks & blocks)
 {
+	if (data_variants.empty())
+		return;
+
 	blocks.resize(data_variants.size());
 	Exceptions exceptions(threads);