jorisvandenbossche commented on a change in pull request #7608:
URL: https://github.com/apache/arrow/pull/7608#discussion_r450721280
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File path: cpp/src/arrow/dataset/partition.cc
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@@ -646,15 +657,26 @@ class HivePartitioningFactory : public
PartitioningFactory {
}
}
- return impl.Finish(&dictionaries_);
+ auto schema_result = impl.Finish(&dictionaries_);
+ field_names_ = impl.FieldNames();
+ return schema_result;
}
Result<std::shared_ptr<Partitioning>> Finish(
const std::shared_ptr<Schema>& schema) const override {
- return std::shared_ptr<Partitioning>(new HivePartitioning(schema,
dictionaries_));
+ for (FieldRef ref : field_names_) {
Review comment:
There is no `FieldNames()` method on the PartitioningFactory (only the
`impl` has one, but that is not accessible here; that's the reason I added the
`field_names_` private member to store those)
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