Zach Dischner

Spark: Adding simple custom partition sort order option to RewriteManifests Spark Action

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## What This adds a simple `sort` method to the `RewriteManifests` spark action which lets user specify the partition column order to consider when grouping manifests. Illustration: ``` RewriteManifests.Result result...

Adding new rewrite manifest spark action to accept custom partition order

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**Note** this is a fresh PR replacing https://github.com/apache/iceberg/pull/9731. It had too much accumulated conflicts and changes, I rebased and messed it up. This is a clean start with all previous...