cyb70289 commented on a change in pull request #10184:
URL: https://github.com/apache/arrow/pull/10184#discussion_r625114213
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File path: cpp/src/arrow/compute/kernels/scalar_boolean.cc
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@@ -175,15 +175,24 @@ struct KleeneAnd : Commutative<KleeneAnd> {
}
if (right_true) {
- GetBitmap(*out, 0).CopyFrom(GetBitmap(left, 0));
+ if (left.GetNullCount() == 0) {
+ GetBitmap(*out, 0).SetBitsTo(true);
Review comment:
Done.
Looks it's better to tell the scalar kernel framework not to pre-allocate
the valid buffer.
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