WeichenXu123 commented on PR #47283:
URL: https://github.com/apache/spark/pull/47283#issuecomment-2225596283
> is it possible to extract this field first by `df.select('a.b.c')` ?
I don't like this way, in this way we have to catch exception raised by
`df.select('a.b.c')` and match error message , it leads to fragile code.
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