From c7c14cc6ad9723b04dbc95bd1c096f91a711c967 Mon Sep 17 00:00:00 2001
From: hexiaoting <hewenting_ict@163.com>
Date: Tue, 10 Nov 2020 11:24:39 +0800
Subject: [PATCH] fix bug

---
 src/Columns/ColumnMap.cpp | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/Columns/ColumnMap.cpp b/src/Columns/ColumnMap.cpp
index 77949f3da13..124dd5dd36c 100644
--- a/src/Columns/ColumnMap.cpp
+++ b/src/Columns/ColumnMap.cpp
@@ -32,8 +32,7 @@ std::string ColumnMap::getName() const
 
 ColumnMap::ColumnMap(MutableColumns && mutable_columns)
 {
-    assert(2 == mutable_columns.size());
-    columns.reserve(2);
+    columns.reserve(mutable_columns.size());
     for (auto & column : mutable_columns)
     {
         assert(column->getDataType() == TypeIndex::Array);