ViggoC commented on code in PR #761:
URL: https://github.com/apache/arrow-java/pull/761#discussion_r2099417700
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vector/src/main/java/org/apache/arrow/vector/compare/RangeEqualsVisitor.java:
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@@ -270,35 +271,24 @@ protected boolean compareRunEndEncodedVectors(Range
range) {
RunEndEncodedVector leftVector = (RunEndEncodedVector) left;
RunEndEncodedVector rightVector = (RunEndEncodedVector) right;
- final int leftRangeEnd = range.getLeftStart() + range.getLength();
- final int rightRangeEnd = range.getRightStart() + range.getLength();
+ final RunEndEncodedVector.RangeIterator leftIterator =
+ new RangeIterator(leftVector, range.getLeftStart(), range.getLength());
+ final RunEndEncodedVector.RangeIterator rightIterator =
+ new RangeIterator(rightVector, range.getRightStart(),
range.getLength());
FieldVector leftValuesVector = leftVector.getValuesVector();
FieldVector rightValuesVector = rightVector.getValuesVector();
RangeEqualsVisitor innerVisitor = createInnerVisitor(leftValuesVector,
rightValuesVector, null);
- int leftLogicalIndex = range.getLeftStart();
- int rightLogicalIndex = range.getRightStart();
+ while (leftIterator.nextRun() | rightIterator.nextRun()) {
Review Comment:
@lidavidm According to your suggestion, I should change it to `while
(leftIterator.nextRun() && rightIterator.nextRun())` instead of `while
(leftIterator.nextRun() || rightIterator.nextRun())`. The short-circuit feature
of '||' will make only leftIterator move forward, while right stays still.
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