jasperjiaguo commented on code in PR #10649:
URL: https://github.com/apache/pinot/pull/10649#discussion_r1171854903
##########
pinot-core/src/main/java/org/apache/pinot/core/query/aggregation/function/PercentileRawTDigestAggregationFunction.java:
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@@ -59,11 +64,12 @@ public AggregationFunctionType getType() {
@Override
public String getResultColumnName() {
final double percentile =
_percentileTDigestAggregationFunction._percentile;
+ final double compressionFactor =
_percentileTDigestAggregationFunction._compressionFactor;
final int version = _percentileTDigestAggregationFunction._version;
final String type = getType().getName().toLowerCase();
return version == 0 ? type + (int) percentile + "(" + _expression + ")"
- : type + "(" + _expression + ", " + percentile + ")";
+ : type + "(" + _expression + ", " + percentile + ", " +
compressionFactor + ")";
Review Comment:
Would this change break some existing readers depending on this column name?
##########
pinot-core/src/main/java/org/apache/pinot/core/query/aggregation/function/PercentileTDigestAggregationFunction.java:
##########
@@ -38,21 +38,32 @@
public class PercentileTDigestAggregationFunction extends
BaseSingleInputAggregationFunction<TDigest, Double> {
Review Comment:
Can we update the user doc with some very simple instructions eg "typically
compression=100 is used. But the user can use higher compression for more
accurate results, with higher memory consumption."
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