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https://issues.apache.org/jira/browse/SPARK-8231?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14636004#comment-14636004
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Pedro Rodriguez commented on SPARK-8231:
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Looks like the critical points are
1. If the array is empty, null, or the value is null, return false:
https://github.com/apache/hive/blob/master/ql/src/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDFArrayContains.java#L102-L128
2. If there is a type mismatch, throw error
3. If comparison is not supported, throw error
I got through implementing most of this and will push changes in a PR soon. I
am still trying to get the codegen to compile to pass expressions tests and am
not checking for type mismatch or comparable yet
> complex function: array_contains
> --------------------------------
>
> Key: SPARK-8231
> URL: https://issues.apache.org/jira/browse/SPARK-8231
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Reporter: Reynold Xin
> Assignee: Cheng Hao
>
> array_contains(Array<T>, value)
> Returns TRUE if the array contains value.
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