jayzhan211 commented on code in PR #7242:
URL: https://github.com/apache/arrow-datafusion/pull/7242#discussion_r1292887025
##########
datafusion/core/src/physical_plan/aggregates/mod.rs:
##########
@@ -1128,10 +1128,18 @@ fn finalize_aggregation(
| AggregateMode::Single
| AggregateMode::SinglePartitioned => {
// merge the state to the final value
- accumulators
+ let res = accumulators
.iter()
- .map(|accumulator| accumulator.evaluate().map(|v|
v.to_array()))
- .collect::<Result<Vec<ArrayRef>>>()
+ .map(|accumulator| {
+ let column_value = accumulator.evaluate_v2();
Review Comment:
@alamb
If we want `accumulator.evaluate()` here, we might need to introduce
something like `ScalarValue::Array(Option<Vec<ScalarValue>>)`, the `Vec` here
is to represent values of rows.
i.e. ScalarValue::Array(vec![1, 2, 3, 4])
-> Int64Array(1,2,3,4)
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