[ https://issues.apache.org/jira/browse/SPARK-40066?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17579200#comment-17579200 ]
Apache Spark commented on SPARK-40066: -------------------------------------- User 'gengliangwang' has created a pull request for this issue: https://github.com/apache/spark/pull/37503 > ANSI mode: always return null on invalid access to map column > ------------------------------------------------------------- > > Key: SPARK-40066 > URL: https://issues.apache.org/jira/browse/SPARK-40066 > Project: Spark > Issue Type: Sub-task > Components: SQL > Affects Versions: 3.4.0 > Reporter: Gengliang Wang > Assignee: Gengliang Wang > Priority: Major > > Since https://github.com/apache/spark/pull/30386, Spark always throws an > error on invalid access to a map column. There is no such syntax in the ANSI > SQL standard since there is no Map type in it. There is a similar type > `multiset` which returns null on non-existing element access. > Also, I investigated PostgreSQL/Snowflake/Biguqery and all of them returns > null return on map(json) key not exists. > I suggest loosen the the syntax here. When users get the error, most of them > will just use `try_element_at()` to get the same syntax or just turn off the > ANSI SQL mode. -- This message was sent by Atlassian Jira (v8.20.10#820010) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org