lidavidm commented on a change in pull request #10253:
URL: https://github.com/apache/arrow/pull/10253#discussion_r627532732
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File path: cpp/src/arrow/dataset/file_parquet.cc
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@@ -198,17 +198,22 @@ static util::optional<compute::Expression>
ColumnChunkStatisticsAsExpression(
auto maybe_min = min->CastTo(field->type());
auto maybe_max = max->CastTo(field->type());
if (maybe_min.ok() && maybe_max.ok()) {
- auto col_min = maybe_min.MoveValueUnsafe();
- auto col_max = maybe_max.MoveValueUnsafe();
- if (col_min->Equals(col_max)) {
- return compute::equal(std::move(field_expr),
compute::literal(std::move(col_min)));
+ min = maybe_min.MoveValueUnsafe();
+ max = maybe_max.MoveValueUnsafe();
+ if (min->Equals(max)) {
+ return compute::equal(std::move(field_expr),
compute::literal(std::move(min)));
Review comment:
Do we want to add an `is_valid` here too if applicable?
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