Details
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Improvement
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Status: Closed
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Major
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Resolution: Fixed
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4.0.0-alpha-2
Description
ds_kll_sketch UDAF does not have a vectorized implementation at the moment, the present ticket aims at bridging this gap.
This is particularly important because vectorization has an "all or nothing" approach, so if this function is used at the side of vectorized functions, they won't be able to benefit from vectorized execution.
Attachments
Issue Links
- is depended upon by
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HIVE-26221 Add histogram-based column statistics
- Closed
- is related to
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HIVE-26572 Support constant expressions in vectorization
- Closed
- links to