yiguolei commented on code in PR #30709:
URL: https://github.com/apache/doris/pull/30709#discussion_r1474257086
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be/src/vec/olap/vertical_block_reader.h:
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@@ -107,6 +107,7 @@ class VerticalBlockReader final : public TabletReader {
// for agg mode
std::vector<AggregateFunctionPtr> _agg_functions;
std::vector<AggregateDataPtr> _agg_places;
+ Arena _arena;
Review Comment:
Do we need clear the arena when one segment flushed? to reduce the memory??
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