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Posted to issues@spark.apache.org by "Kazuaki Ishizaki (JIRA)" <ji...@apache.org> on 2018/04/09 18:19:00 UTC

[jira] [Commented] (SPARK-23923) High-order function: cardinality(x) → bigint

    [ https://issues.apache.org/jira/browse/SPARK-23923?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16431009#comment-16431009 ] 

Kazuaki Ishizaki commented on SPARK-23923:
------------------------------------------

I am working for this.

> High-order function: cardinality(x) → bigint
> --------------------------------------------
>
>                 Key: SPARK-23923
>                 URL: https://issues.apache.org/jira/browse/SPARK-23923
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>    Affects Versions: 2.3.0
>            Reporter: Xiao Li
>            Priority: Major
>
> Ref: https://prestodb.io/docs/current/functions/array.html and  https://prestodb.io/docs/current/functions/map.html.
> Returns the cardinality (size) of the array/map x.



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