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Query fails with "NULL is invalid as a DataFusion scalar value" #180

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andygrove opened this issue Aug 30, 2022 · 1 comment · Fixed by #182
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Query fails with "NULL is invalid as a DataFusion scalar value" #180

andygrove opened this issue Aug 30, 2022 · 1 comment · Fixed by #182
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@andygrove
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Describe the bug

I am trying to run the following query in Ballista:

>>> ctx.sql("SELECT CASE WHEN x > 5 THEN x ELSE NULL END from y limit 10").show()

It fails with:

Exception: Internal error: failed to serialize logical plan: Plan("NULL is invalid as a DataFusion scalar value"). This was likely caused by a bug in DataFusion's code and we would welcome that you file an bug report in our issue tracker

The same query is working for me with DataFusion 11.0.0

To Reproduce
See above

Expected behavior
Should work

Additional context
None
@andygrove andygrove added the bug Something isn't working label Aug 30, 2022
@andygrove
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Root cause: apache/datafusion#3302

@andygrove andygrove mentioned this issue Aug 31, 2022
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Use latest DataFusion, and arrow 21.0.0 andygrove/datafusion-ballista
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@andygrove