Github user eyalfa commented on the issue: https://github.com/apache/spark/pull/14444 @hvanhovell , I'm currently trying your approach of testing `ne.resolved` prior to accessing `ne.name`. tests are running as I write here, but a quick dive into the `NamedExpression` hierarchy revealed some more cases (other than `Star`) where the names are not available prior to analysis, i.e.`UnresolvedAlias` and `MultiAlias`, there's also `UnresolvedAttribute` which isn't resolved but its name is always available (doesn't throw). even though I've tried I couldn't come up with a use case that combines these expressions with `CreateStruct`, I'd appreciate if any of you guys can shed some light on these classes, especially `UnresolvedAlias`. I'm a bit worried about this one as I suspect `CreateStruct.apply` might encounter one, looking at `Analyzer` shows that `ResolveAliases` is executed after `ResolveFunctions` so I guess my concern is at least theoretically possible.
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