diff --git a/lib/base/array.cpp b/lib/base/array.cpp
index d037bce75..a09610855 100644
--- a/lib/base/array.cpp
+++ b/lib/base/array.cpp
@@ -181,6 +181,14 @@ void Array::Clear(void)
 	m_Data.clear();
 }
 
+void Array::Reserve(size_t new_size)
+{
+	ASSERT(!OwnsLock());
+	ObjectLock olock(this);
+
+	m_Data.reserve(new_size);
+}
+
 void Array::CopyTo(const Array::Ptr& dest) const
 {
 	ASSERT(!OwnsLock());
diff --git a/lib/base/array.hpp b/lib/base/array.hpp
index 2b0e6a64e..34db58477 100644
--- a/lib/base/array.hpp
+++ b/lib/base/array.hpp
@@ -62,6 +62,8 @@ public:
 	void Resize(size_t new_size);
 	void Clear(void);
 
+	void Reserve(size_t new_size);
+
 	void CopyTo(const Array::Ptr& dest) const;
 	Array::Ptr ShallowClone(void) const;
 
diff --git a/lib/livestatus/livestatusquery.cpp b/lib/livestatus/livestatusquery.cpp
index de9127800..70c707f3b 100644
--- a/lib/livestatus/livestatusquery.cpp
+++ b/lib/livestatus/livestatusquery.cpp
@@ -508,16 +508,26 @@ void LivestatusQuery::ExecuteGetHelper(const Stream::Ptr& stream)
 	if (m_Aggregators.empty()) {
 		Array::Ptr header = new Array();
 
+		typedef std::pair<String, Column> ColumnPair;
+
+		std::vector<ColumnPair> column_objs;
+		column_objs.reserve(columns.size());
+
+		BOOST_FOREACH(const String& columnName, columns)
+			column_objs.push_back(std::make_pair(columnName, table->GetColumn(columnName)));
+
+		rs->Reserve(1 + objects.size());
+
 		BOOST_FOREACH(const LivestatusRowValue& object, objects) {
 			Array::Ptr row = new Array();
 
-			BOOST_FOREACH(const String& columnName, columns) {
-				Column column = table->GetColumn(columnName);
+			row->Reserve(column_objs.size());
 
+			BOOST_FOREACH(const ColumnPair& cv, column_objs) {
 				if (m_ColumnHeaders)
-					header->Add(columnName);
+					header->Add(cv.first);
 
-				row->Add(column.ExtractValue(object.Row, object.GroupByType, object.GroupByObject));
+				row->Add(cv.second.ExtractValue(object.Row, object.GroupByType, object.GroupByObject));
 			}
 
 			if (m_ColumnHeaders) {
@@ -558,6 +568,8 @@ void LivestatusQuery::ExecuteGetHelper(const Stream::Ptr& stream)
 
 		Array::Ptr row = new Array();
 
+		row->Reserve(m_Columns.size() + m_Aggregators.size());
+
 		/*
 		 * add selected columns next to stats
 		 * may not be accurate for grouping!