lidavidm commented on code in PR #15106:
URL: https://github.com/apache/arrow/pull/15106#discussion_r1059410649
##########
java/algorithm/src/main/java/org/apache/arrow/algorithm/sort/VectorValueComparator.java:
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@@ -76,6 +88,10 @@ public void attachVector(V vector) {
public void attachVectors(V vector1, V vector2) {
this.vector1 = vector1;
this.vector2 = vector2;
+
+ final boolean v1MayHaveNulls =
vector1.getField().getFieldType().isNullable();
+ final boolean v2MayHaveNulls =
vector2.getField().getFieldType().isNullable();
Review Comment:
Ah, thanks for working through it. I suppose Java doesn't optimize the
validity buffer in the same way that C++ does.
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