Support Nested Schema Evolution in Parquet for Presto #6675. Copy of …

[sathiscode]

Copy of code from #6675 and migrated to support recent code changes.

[afranzi]

Hi @sathiscode & @zhenxiao,

Is there any intention of merging this useful code to master? We are using Presto in Production with this Patch and it works fine too.

It would be great if nested fields and schema evolution where supported by default in Presto.

[sathiscode]

@afranzi I'm not an admin, so don't have permission to merge the code. Waiting for someone to merge the code.

[sajjoseph]

With #10737, parquet reader was rewritten and the changes in this PR are no longer working. We will have to incorporate these changes into 0.213 codebase.

The other change to be done is the enhancements to the test cases to validate nested schema evolution.

[Pjack]

Amazon Athena utilizes this parquet parser and AWS support refuses to apply the fix on their end until this PR is merged. Do you have plan for this? Thanks!

[Pjack]

#6675 is closed, does it mean this issue is resolved too?

[stale]

This pull request has been automatically marked as stale because it has not had recent activity. If you'd still like this PR merged, please comment on the task, make sure you've addressed reviewer comments, and rebase on the latest master. Thank you for your contributions!