apache / apache/datafusion-comet

perf: Optimize CometIcebergNativeScan serialization

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enhancement
Dominant language
Scala
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Description

### What is the problem the feature request solves?

#3298 added some nice optimizations to the Iceberg serialization, but #3349 changed that code quite a bit, and #3443 cleans up some of the validation. We should revisit #3298 on current code and see if those optimizations still apply.

### Describe the potential solution

_No response_

### Additional context

_No response_

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