HyukjinKwon opened a new pull request #28812:
URL: https://github.com/apache/spark/pull/28812
### What changes were proposed in this pull request?
This proposes a minor refactoring to match `NestedColumnAliasing` to
`GeneratorNestedColumnAliasing` so it returns the pruned plan directly.
```scala
case p @ NestedColumnAliasing(nestedFieldToAlias, attrToAliases) =>
NestedColumnAliasing.replaceToAliases(p, nestedFieldToAlias,
attrToAliases)
```
vs
```scala
case GeneratorNestedColumnAliasing(p) => p
```
### Why are the changes needed?
Just for readability.
### Does this PR introduce _any_ user-facing change?
No.
### How was this patch tested?
Existing tests should cover.
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