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https://issues.apache.org/jira/browse/SPARK-39392?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-39392:
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Assignee: Apache Spark
> Refine ANSI error messages and remove 'To return NULL instead'
> --------------------------------------------------------------
>
> Key: SPARK-39392
> URL: https://issues.apache.org/jira/browse/SPARK-39392
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.4
> Reporter: Vitalii Li
> Assignee: Apache Spark
> Priority: Major
>
> Proposal: remove ‘To return NULL instead’ as this should not be the purpose
> and the user may not even aware it was returning NULLs.
> Example:
> Old:
> {{1[MAP_KEY_DOES_NOT_EXIST] Key 3 does not exist. To return NULL instead, use
> `try_element_at`. If necessary set "spark.sql.ansi.enabled" to "false" to
> bypass this error.2== SQL(line 1, position 8) ==3SELECT m[3] FROM
> VALUES(map(1, 'Hello', 2, ...4 ^^^^}}
> Proposed:
> {{1[MAP_KEY_DOES_NOT_EXIST] Key 3 does not exist in the map. Use
> `try_element_at` to tolerate a non-existent key and return NULL. If necessary
> set "spark.sql.ansi.enabled" to "false" to bypass this error.2== SQL(line 1,
> position 8) ==3SELECT m[3] FROM VALUES(map(1, 'Hello', 2, ...4 ^^^^}}
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