iajoiner commented on code in PR #3347:
URL: https://github.com/apache/arrow-datafusion/pull/3347#discussion_r967239752
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datafusion/physical-expr/src/aggregate/approx_distinct.rs:
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@@ -219,7 +219,11 @@ macro_rules! default_accumulator_impl {
() => {
fn merge_batch(&mut self, states: &[ArrayRef]) -> Result<()> {
assert_eq!(1, states.len(), "expect only 1 element in the states");
- let binary_array =
states[0].as_any().downcast_ref::<BinaryArray>().unwrap();
+ let binary_array =
states[0].as_any().downcast_ref::<BinaryArray>().ok_or(
Review Comment:
@andygrove Fixed! Actually I expanded the macro and put it in
`datafusion-common` since it is everywhere.
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