pan3793 opened a new pull request, #3262: URL: https://github.com/apache/parquet-java/pull/3262
<!-- Thanks for opening a pull request! If you're new to Parquet-Java, information on how to contribute can be found here: https://parquet.apache.org/docs/contribution-guidelines/contributing Please open a GitHub issue for this pull request: https://github.com/apache/parquet-java/issues/new/choose and format pull request title as below: GH-${GITHUB_ISSUE_ID}: ${SUMMARY} or simply use the title below if it is a minor issue: MINOR: ${SUMMARY} --> Co-authored-by: David Zhu <[email protected]> ### Rationale for this change This PR takes over #3165 as the author is silent for a while. The proposed API allows the caller to reuse InputStream to save HDFS NameNode RPCs, https://github.com/apache/spark/pull/50765 demonstrates how this PR benefits Spark. ### What changes are included in this PR? - Add constructor to `ParquetFileReader` to allow passing in parquet footer - Add new method `setRequestedSchema(List<ColumnDescriptor>)` to `ParquetFileReader` - UT is modified to use the newly added API. ### Are these changes tested? Yes, UT is tuned. ### Are there any user-facing changes? It exposes new public APIs for `ParquetFileReader`. <!-- Please uncomment the line below and replace ${GITHUB_ISSUE_ID} with the actual Github issue id. --> Closes #3141 -- 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] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
