Github user koertkuipers commented on the issue:
https://github.com/apache/spark/pull/17660
I see. let me check if making leftHasNonNullPredicate and
rightHasNonNullPredicate lazy solves it then
On Apr 17, 2017 23:44, "Wenchen Fan" <notificati...@github.com> wrote:
> I think the root problem is, in EliminateOuterJoin.buildNewJoinType, we
> always build leftHasNonNullPredicate and rightHasNonNullPredicate. If
> it's left join, only rightHasNonNullPredicate is used, and when building
> leftHasNonNullPredicate, we may pass null values to a UDF that is not
> supposed to run on null values.
>
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