[ https://issues.apache.org/jira/browse/SPARK-23924?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16435543#comment-16435543
]
Apache Spark commented on SPARK-23924:
--------------------------------------
User 'kiszk' has created a pull request for this issue:
https://github.com/apache/spark/pull/21053
> High-order function: element_at
> -------------------------------
>
> Key: SPARK-23924
> URL: https://issues.apache.org/jira/browse/SPARK-23924
> 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
> * element_at(array<E>, index) → E
> Returns element of array at given index. If index > 0, this function provides the
same functionality as the SQL-standard subscript operator ([]). If index < 0, element_at
accesses elements from the last to the first.
> * element_at(map<K, V>, key) → V
> Returns value for given key, or NULL if the key is not contained in the map.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org
|