westonpace commented on issue #37630:
URL: https://github.com/apache/arrow/issues/37630#issuecomment-1712048238
In `file_parquet.h`. The `ParquetFileFragment` class has these variables:
```
/// Indices of row groups selected by this fragment,
/// or std::nullopt if all row groups are selected.
std::optional<std::vector<int>> row_groups_;
std::vector<compute::Expression> statistics_expressions_;
std::vector<bool> statistics_expressions_complete_;
std::shared_ptr<parquet::FileMetaData> metadata_;
std::shared_ptr<parquet::arrow::SchemaManifest> manifest_;
```
They initially start empty/null and are initialized during a call to
`EnsureCompleteMetadata`.
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
