cloud-fan commented on PR #49245:
URL: https://github.com/apache/spark/pull/49245#issuecomment-2558931188
@dtenedor after a few iterations, `ResolveAliases` should see
`PipeExpression` with its child resolved, right? The thing is that we should
have consistent auto alias generation behavior between normal and pipe SQL
syntaxes, e.g.
```
case ne: NamedExpression => ne
case go @ GeneratorOuter(g: Generator) if g.resolved => MultiAlias(go,
Nil)
case e if !e.resolved => u
case g: Generator => MultiAlias(g, Nil)
case c @ Cast(ne: NamedExpression, _, _, _) => Alias(c, ne.name)()
case e: ExtractValue if extractOnly(e) => Alias(e, toPrettySQL(e))()
```
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