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Posted to github@datafusion.apache.org by "theirix (via GitHub)" <gi...@apache.org> on 2026/04/16 22:18:53 UTC
Re: [PR] feat: refactor percentiles to TypeSignature, coerce to floats [datafusion]
theirix commented on code in PR #21074:
URL: https://github.com/apache/datafusion/pull/21074#discussion_r3096693415
##########
datafusion/functions-aggregate/src/approx_percentile_cont.rs:
##########
@@ -132,22 +132,45 @@ impl Default for ApproxPercentileCont {
impl ApproxPercentileCont {
/// Create a new [`ApproxPercentileCont`] aggregate function.
pub fn new() -> Self {
- let mut variants = Vec::with_capacity(NUMERICS.len() * (INTEGERS.len() + 1));
// Accept any numeric value paired with a float64 percentile
- for num in NUMERICS {
- variants.push(TypeSignature::Exact(vec![num.clone(), DataType::Float64]));
- // Additionally accept an integer number of centroids for T-Digest
- for int in INTEGERS {
- variants.push(TypeSignature::Exact(vec![
- num.clone(),
- DataType::Float64,
- int.clone(),
- ]))
- }
- }
- Self {
- signature: Signature::one_of(variants, Volatility::Immutable),
- }
+ // Additionally accept an integer number of centroids for T-Digest
+ let signature = Signature::one_of(
Review Comment:
Agree, removed some code. It also affected `approx_median`, piggybacking on `approx_percentile_cont` - updated signature and tests as well.
Clarified the scope of this PR in description - it changes more than expected
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