mgaido91 edited a comment on issue #20350: [SPARK-23179][SQL] Support option to throw exception if overflow occurs URL: https://github.com/apache/spark/pull/20350#issuecomment-504573616 @mickjermsurawong-stripe thanks for your comment. I am updating this PR resolving the conflicts and I hope that your feedback will help this PR moving forward. As far as your question is regarded, you may consider adding an `AssertNotNull` to the output of the decoding, in order to get an exception in case that conversion fails. This is not really feasible - of course - if your input `BigDecimal` can contain null, ie. if it is an `Option[BigDecimal]` you want to get in SQL. Another option which may work for you is what is done in this PR now, after my update, in the `RowEncoder`. The check there may solve your issue too.
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