[jira] [Commented] (SPARK-40109) New SQL function: get()

["Apache Spark (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-40109?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17580501#comment-17580501 ] 

Apache Spark commented on SPARK-40109:
--------------------------------------

User 'gengliangwang' has created a pull request for this issue:
https://github.com/apache/spark/pull/37541

> New SQL function: get()
> -----------------------
>
>                 Key: SPARK-40109
>                 URL: https://issues.apache.org/jira/browse/SPARK-40109
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>    Affects Versions: 3.4.0
>            Reporter: Gengliang Wang
>            Assignee: Gengliang Wang
>            Priority: Major
>
> Currently, when accessing array element with invalid index under ANSI SQL mode, the error is like:
> {quote}[INVALID_ARRAY_INDEX] The index -1 is out of bounds. The array has 3 elements. Use `try_element_at` and increase the array index by 1(the starting array index is 1 for `try_element_at`) to tolerate accessing element at invalid index and return NULL instead. If necessary set "spark.sql.ansi.enabled" to "false" to bypass this error.
> {quote}
> The provided solution is complicated. I suggest introducing a new method get() which always returns null on an invalid array index. This is from [https://docs.snowflake.com/en/sql-reference/functions/get.html.]
> Since Spark's map access always returns null, let's don't support map type in the get method for now.



--
This message was sent by Atlassian Jira
(v8.20.10#820010)

---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org