pgaref commented on a change in pull request #508:
URL: https://github.com/apache/orc/pull/508#discussion_r481942384
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File path: java/core/src/java/org/apache/orc/impl/RecordReaderImpl.java
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@@ -495,6 +495,14 @@ static TruthValue
evaluatePredicateProto(OrcProto.ColumnStatistics statsProto,
" include ORC-517. Writer version: {}",
predicate.getColumnName(), writerVersion);
return TruthValue.YES_NO_NULL;
+ } else if (category == TypeDescription.Category.DOUBLE) {
+ DoubleColumnStatistics dstas = (DoubleColumnStatistics) cs;
+ if (!Double.isFinite(dstas.getMinimum()) ||
!Double.isFinite(dstas.getMaximum())
Review comment:
Hey @wgtmac -- the logic is replicated across Cpp and Java versions.
Regarding the broad check, the way we compare Double Stats (without
Double.compare) can also lead to wrong min/max values (see test case) -- this
is also something we could improve.
https://github.com/apache/orc/blob/ca33ce64bf1fa8b3696e2e44b32237d842c70df3/java/core/src/java/org/apache/orc/impl/ColumnStatisticsImpl.java#L563
However, we could probably replace the infinity check with a Nan check.
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