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  • Datasets in Spark are inmutable. That’s why you shouldn’t call withColumn many times.
  • https://twitter.com/vboykis/status/1655899657841541120?s=46 Spark Calc from Vicky Boykis
  • You can broadcast a dataframe, not just native types (although you are suffering a collect under the hood): https://stackoverflow.com/a/38667928.

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