apache / apache/datafusion-comet

Add support for map inputs to `explode`

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enhancement
Dominant language
Scala
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Description

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

PR https://github.com/apache/datafusion-comet/pull/2836 adds initial support for `explode` for array inputs. We should also add support for map inputs.

### Describe the potential solution

_No response_

### Additional context

_No response_

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