spaces-X commented on a change in pull request #8234:
URL: https://github.com/apache/incubator-doris/pull/8234#discussion_r822332679
##########
File path: be/src/olap/aggregate_func.h
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@@ -580,6 +581,53 @@ struct
AggregateFuncTraits<OLAP_FIELD_AGGREGATION_BITMAP_UNION, OLAP_FIELD_TYPE_
: public AggregateFuncTraits<OLAP_FIELD_AGGREGATION_BITMAP_UNION,
OLAP_FIELD_TYPE_OBJECT> {
};
+template <>
+struct AggregateFuncTraits<OLAP_FIELD_AGGREGATION_QUANTILE_UNION,
OLAP_FIELD_TYPE_QUANTILE_STATE> {
+ static void init(RowCursorCell* dst, const char* src, bool src_null,
MemPool* mem_pool,
+ ObjectPool* agg_pool) {
+ DCHECK_EQ(src_null, false);
+ dst->set_not_null();
+
+ auto* src_slice = reinterpret_cast<const Slice*>(src);
+ auto* dst_slice = reinterpret_cast<Slice*>(dst->mutable_cell_ptr());
+
+ // we use zero size represent this slice is a agg object
+ dst_slice->size = 0;
+ auto* quantile_state = new QuantileState<double>(*src_slice);
+
+
mem_pool->mem_tracker()->Consume(quantile_state->get_serialized_size());
Review comment:
The result of sizeof() is not incorrect, which is much lower than actual
memory usage, cause we have vector or obj ptr in the member variables.
The result of get_serialized_size is closer to real memory usage.
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