alamb commented on code in PR #8849:
URL: https://github.com/apache/arrow-datafusion/pull/8849#discussion_r1451545801
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datafusion/physical-expr/src/aggregate/count_distinct.rs:
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@@ -152,6 +155,8 @@ impl AggregateExpr for DistinctCount {
Float32 => float_distinct_count_accumulator!(Float32Type),
Float64 => float_distinct_count_accumulator!(Float64Type),
+ Utf8 => Ok(Box::new(StringDistinctCountAccumulator::new())),
Review Comment:
I am not sure -- I need to look at memory allocation more carefully
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