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Posted to issues@spark.apache.org by "Yuchuan Huang (Jira)" <ji...@apache.org> on 2025/06/17 17:49:00 UTC

[jira] [Updated] (SPARK-52515) Approx_top_k SQL function based on Apache DataSketches

     [ https://issues.apache.org/jira/browse/SPARK-52515?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yuchuan Huang updated SPARK-52515:
----------------------------------
    Summary: Approx_top_k SQL function based on Apache DataSketches  (was: Approx_top_k based on Apache DataSketches)

> Approx_top_k SQL function based on Apache DataSketches
> ------------------------------------------------------
>
>                 Key: SPARK-52515
>                 URL: https://issues.apache.org/jira/browse/SPARK-52515
>             Project: Spark
>          Issue Type: New Feature
>          Components: SQL
>    Affects Versions: 4.0.0
>            Reporter: Yuchuan Huang
>            Priority: Major
>
> Apache DataSketches an open-source library of sketches algorithms, and it is widely used and adopted in industry. This ticket aims to introduce a function "approx_top_k", which uses the _frequent items sketches_ from Apache DataSketches to find the approximate k-most-frequent items in a dataset.



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