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https://issues.apache.org/jira/browse/IMPALA-10105?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gabor Kaszab updated IMPALA-10105:
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Summary: Implement KLL functions that return array of doubles (was:
Rewrite KLL functions to return array of doubles)
> Implement KLL functions that return array of doubles
> ----------------------------------------------------
>
> Key: IMPALA-10105
> URL: https://issues.apache.org/jira/browse/IMPALA-10105
> Project: IMPALA
> Issue Type: New Feature
> Components: Backend
> Reporter: Gabor Kaszab
> Priority: Major
>
> There are functions that originally meant to return Array<Double> but since
> Impala doesn't have support for returning complex types these functions were
> implemented to return a comma separated string.
> To avoid breaking compatibility these functions got "_as_string" postfix:
> - ds_kll_quantiles_as_string()
> - ds_kll_pmf_as_string()
> - ds_kll_cdf_as_string()
> This ticket is to implement the version of these functions that actually
> return an array of doubles.
> - ds_kll_quantiles()
> - ds_kll_pmf()
> - ds_kll_cdf()
> This is the Jira that track complex types support as return type:
> https://issues.apache.org/jira/browse/IMPALA-9520
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