Github user wmellouli commented on the issue:
https://github.com/apache/spark/pull/22332
@mgaido91 Thank you for your suggestion, I updated the PR name, description
and sources with a new version using a parameter `atPosition` instead of a flag
`atTheEnd`. Let me know what you think about this new implementation.
@jaceklaskowski Thank your for your review. But here I'm discussing about
the `withColumn` method that allows **adding and/or replacing** existing
columns with new column content. What you suggested does not manage replacing
existing column content. The idea is to make the `withColumn` method more
flexible with keeping the backward compatibility. Actually the `withColumn`
method is useful only for one use case: add (maybe replace) column at the end.
I changed the implementation with @mgaido91 suggestion to make `withColumn`
useful for more use cases. Let me know what you think about this new
implementation.
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