jayzhan211 commented on code in PR #9249:
URL: https://github.com/apache/arrow-datafusion/pull/9249#discussion_r1497726222
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datafusion/expr/src/function.rs:
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@@ -41,9 +41,12 @@ pub type ReturnTypeFunction =
Arc<dyn Fn(&[DataType]) -> Result<Arc<DataType>> + Send + Sync>;
/// Factory that returns an accumulator for the given aggregate, given
-/// its return datatype.
-pub type AccumulatorFactoryFunction =
- Arc<dyn Fn(&DataType) -> Result<Box<dyn Accumulator>> + Send + Sync>;
+/// its return datatype, the sorting expressions and the schema for ordering.
+pub type AccumulatorFactoryFunction = Arc<
Review Comment:
This seems like a breaking API change
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