HIVE-25242. Query performs extremely slow with vectorized.adaptor = chosen #2390
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retest this please |
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@pgaref yes, I added a note on the ticket about whitelisting the concat. The patch was tested by a customer and didn't report any side effects. |
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…hosen (apache#2390) (Attila Magyar reviewed by Panagiotis Garefalakis)
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If hive.vectorized.adaptor.usage.mode is set to chosen only certain UDFS are vectorized through the vectorized adaptor.
Queries like this one, performs very slowly because the concat is not chosen to be vectorized.