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https://issues.apache.org/jira/browse/HIVE-26243?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alessandro Solimando resolved HIVE-26243.
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Fix Version/s: 4.0.0
Resolution: Fixed
Fixed via
[{{ad19ec3}}|https://github.com/apache/hive/commit/ad19ec3022a35bee4d618bd8992d9ce0f67be5b7],
thanks to [~dkuzmenko] and [~kgyrtkirk] for their reviews
> Add vectorized implementation of the 'ds_kll_sketch' UDAF
> ---------------------------------------------------------
>
> Key: HIVE-26243
> URL: https://issues.apache.org/jira/browse/HIVE-26243
> Project: Hive
> Issue Type: Improvement
> Components: UDF, Vectorization
> Affects Versions: 4.0.0-alpha-2
> Reporter: Alessandro Solimando
> Assignee: Alessandro Solimando
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.0.0
>
> Time Spent: 6.5h
> Remaining Estimate: 0h
>
> _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.
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