ggershinsky commented on pull request #950: URL: https://github.com/apache/parquet-mr/pull/950#issuecomment-1073553770
hi @huaxingao , can you describe the lifecycle of the column IDs at a high level, either in the PR description, or in a comment? Where these IDs are stored (if in footer - which struct/field)? How are they set and written? Is the writer app expected to verify the uniqueness, or it can use this PR code for that? How the columns IDs are read and used (is the reader app expected to do anything beyond using this PR code)? I think the answer to the last question is mostly provided, but it doesn't explicitly say what IDs are used (where they are stored / read from). -- 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: dev-unsubscr...@parquet.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
