sdf-jkl opened a new issue, #10643: URL: https://github.com/apache/arrow-rs/issues/10643
### Is your feature request related to a problem or challenge?\n\nparquet-rewrite --encoding currently applies one encoding to every column. This makes type-specific encodings difficult to use with mixed schemas.\n\nFor example, ALP supports only FLOAT and DOUBLE. Applying it globally to a file containing other physical types fails after output-file creation. Other type-specific encodings have similar behavior.\n\nThis depends on #9372 and should be worked on after that PR is merged.\n\n### Describe the solution you would like\n\nAdd per-column encoding selection to parquet-rewrite, while retaining the global encoding option as a default.\n\nValidate the selected encoding against each column physical type before rewriting begins. Unsupported combinations should return an actionable error, for example that ALP supports only FLOAT and DOUBLE, without leaving an incomplete output file. -- 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]
