killme2008 commented on code in PR #17618:
URL: https://github.com/apache/datafusion/pull/17618#discussion_r2366952727
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datafusion/functions-aggregate/src/approx_distinct.rs:
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@@ -169,6 +171,11 @@ where
}
}
+#[derive(Debug, Default)]
+struct NullHLLAccumulator {
+ hll: HyperLogLog<()>,
Review Comment:
Of course we can. I just want to reuse the `default_accumulator_impl` macro
and avoid some boilerplate code.
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