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[Improvement](aggregate) optimize for small string aggregate (#29919)

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Pxl
2024-01-18 16:47:03 +08:00
committed by yiguolei
parent f1462f6cf4
commit a5ca8833d7
14 changed files with 211 additions and 250 deletions
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4
be/src/vec/exec/distinct_vaggregation_node.cpp
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@ -95,12 +95,12 @@ void DistinctAggregationNode::_emplace_into_hash_table_to_distinct(IColumn::Sele
auto creator = [&](const auto& ctor, auto& key, auto& origin) {
HashMethodType::try_presis_key(key, origin, *_agg_arena_pool);
ctor(key, dummy_mapped_data);
distinct_row.push_back(row);
distinct_row.push_back_without_reserve(row);
};
auto creator_for_null_key = [&](auto& mapped) {
mapped = dummy_mapped_data;
distinct_row.push_back(row);
distinct_row.push_back_without_reserve(row);
};
SCOPED_TIMER(_hash_table_emplace_timer);