`encoding_stats` not present in Parquet generated by `parquet-rewrite`

[JigaoLuo]

Describe the bug

I recently tested the encoding_stats feature I requested #7341 in the Parquet writer (thank you for the PR #7354 !) and noticed an issue when using the parquet-rewrite tool.

Rewritten files do not include encoding_stats in the footer. I’m seeking clarification on whether this is a configuration issue overlooked by me or a bug. I’m unsure what’s causing this. If this isn’t expected behavior, this issue is a bug report. If I’ve overlooked something obvious, please correct me. Thank you.

To Reproduce

$ parquet-rewrite ... # I rewrite a parquet file
$ parquet footer generated.parquet | grep "encodingStats"
      "encodingStats" : null,
....
      "encodingStats" : null,

The parquet tool I used is from parquet-java : https://github.com/apache/parquet-java/tree/master/parquet-cli

Expected behavior

Should not be null in the footer.

[JigaoLuo]

You can also change the title and the tag to Question or Bug, depending on what this exactly is. Thanks

[etseidl]

Thanks for the report @JigaoLuo. A quick glance at the code doesn't lead me to think it's anything you're missing, so I'd agree it's likely a bug. I'll look into it tomorrow, but suspect it could be an issue with which API parquet-rewrite is using.

[JigaoLuo]

Thanks

[alamb]

label_issue.py automatically added labels {'parquet'} from #7643