mustafasrepo commented on code in PR #10651:
URL: https://github.com/apache/datafusion/pull/10651#discussion_r1622430792
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datafusion/physical-expr-common/src/aggregate/mod.rs:
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@@ -333,11 +351,24 @@ impl AggregateExpr for AggregateFunctionExpr {
}
fn create_groups_accumulator(&self) -> Result<Box<dyn GroupsAccumulator>> {
- self.fun.create_groups_accumulator()
+ let args = AccumulatorArgs {
+ data_type: &self.data_type,
+ schema: &self.schema,
+ ignore_nulls: self.ignore_nulls,
+ sort_exprs: &self.sort_exprs,
+ is_distinct: self.is_distinct,
+ input_type: &self.input_type,
+ args_num: self.args.len(),
+ name: &self.name,
+ };
+ self.fun.create_groups_accumulator(args)
}
fn order_bys(&self) -> Option<&[PhysicalSortExpr]> {
- (!self.ordering_req.is_empty()).then_some(&self.ordering_req)
+ if self.fun.has_ordering_requirements() &&
!self.ordering_req.is_empty() {
Review Comment:
I agree that, for most of the aggregate functions,
`AggregateOrderSensitivity::Insensitive` is the correct behavior. However, I
think the safest default choice is
`AggregateOrderSensitivity::HardRequirement`. Also, as long as there is no
requirement, default is not important. Hence, I think we can be strict in this
choice.
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