1#include "duckdb/optimizer/statistics_propagator.hpp"
2#include "duckdb/planner/expression/bound_aggregate_expression.hpp"
3
4namespace duckdb {
5
6unique_ptr<BaseStatistics> StatisticsPropagator::PropagateExpression(BoundAggregateExpression &aggr,
7 unique_ptr<Expression> *expr_ptr) {
8 vector<BaseStatistics> stats;
9 stats.reserve(n: aggr.children.size());
10 for (auto &child : aggr.children) {
11 auto stat = PropagateExpression(expr&: child);
12 if (!stat) {
13 stats.push_back(x: BaseStatistics::CreateUnknown(type: child->return_type));
14 } else {
15 stats.push_back(x: stat->Copy());
16 }
17 }
18 if (!aggr.function.statistics) {
19 return nullptr;
20 }
21 AggregateStatisticsInput input(aggr.bind_info.get(), stats, node_stats.get());
22 return aggr.function.statistics(context, aggr, input);
23}
24
25} // namespace duckdb
26