alkis opened a new pull request, #42174:
URL: https://github.com/apache/arrow/pull/42174
### Rationale for this change
This binary will make it a lot easier for customers to share their parquet
metadata with the community so that we can build a repository of footers that
can be used for advancing the state of metadata in parquet.
### What changes are included in this PR?
Usage from the file binary itself:
```
Usage: parquet-dump-footer
-h|--help Print help and exit
--no-scrub Do not scrub potentially PII metadata
--json Output JSON instead of binary
--in Input file: required
--out Output file: defaults to stdout
Dumps the footer of a Parquet file to stdout or a file, optionally with
potentially PII metadata scrubbed.
```
### Are these changes tested?
Manually on existing parquet files.
### Are there any user-facing changes?
No.
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