[jira] [Updated] (IMPALA-10131) Document ds_kll_* functions

["Adam Tamas (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IMPALA-10131?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Adam Tamas updated IMPALA-10131:
--------------------------------
    Summary: Document ds_kll_* functions  (was: Document ds_hll_* functions)

> Document ds_kll_* functions
> ---------------------------
>
>                 Key: IMPALA-10131
>                 URL: https://issues.apache.org/jira/browse/IMPALA-10131
>             Project: IMPALA
>          Issue Type: New Feature
>          Components: Docs
>    Affects Versions: Impala 4.0
>            Reporter: Adam Tamas
>            Priority: Major
>              Labels: doc
>
> There were some new functions added recently to add support for Apache DataSketches KLL calculations. These functions purpose is to give an approximate boundaries for 
>  a given dataset. It is an implementation of a very compact quantiles sketch with lazy compaction scheme and nearly optimal accuracy per bit.
> The newly introduced functions are:
>  ds_kll_sketch()
> ds_kll_quantile() 
> ds_kll_quantiles_as_string()
> ds_kll_n()
> ds_kll_union()
> ds_kll_rank()
> ds_kll_pmf_as_string()
> ds_kll_cdf_as_string()
> ds_kll_stringify()
> Related Jiras:
> https://issues.apache.org/jira/browse/IMPALA-9959
> https://issues.apache.org/jira/browse/IMPALA-9962
> https://issues.apache.org/jira/browse/IMPALA-9963
> https://issues.apache.org/jira/browse/IMPALA-10017
> https://issues.apache.org/jira/browse/IMPALA-10018
> https://issues.apache.org/jira/browse/IMPALA-10019
> https://issues.apache.org/jira/browse/IMPALA-10020
> https://issues.apache.org/jira/browse/IMPALA-10108
> We should document these and mark them as experimental features so that users can try out and hopefully give feedback.



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