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https://issues.apache.org/jira/browse/KYLIN-3731?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16728560#comment-16728560
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HongBo Dai commented on KYLIN-3731:
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Hi, with complex data types in kylin array column as dimension table query,
just can't directly use need to be converted into the hive view, through the
link to query the fact table, in the hive view can use function explodes
multidimensional arrays can be converted to the form of query, whether in
version 2.3 or higher, if again in 2.3 using did not join DataTypeOrder when
the class is no problem now in 2.5 x version will have that problem.
> java.lang.IllegalArgumentException: Unsupported data type array<string> at
> ---------------------------------------------------------------------------
>
> Key: KYLIN-3731
> URL: https://issues.apache.org/jira/browse/KYLIN-3731
> Project: Kylin
> Issue Type: Bug
> Components: Job Engine
> Affects Versions: v2.5.1
> Reporter: HongBo Dai
> Assignee: Chao Long
> Priority: Critical
> Labels: build
> Fix For: v2.5.1
>
> Attachments: error of kylin.txt, image-2018-12-20-10-59-04-060.png
>
>
> As kylin was recently upgraded from 2.3 to 2.5.1, its data type of array
> metadata was found to be unsupported and the following exception occurred
> "java. lang. IllegalArgumentException: Unsupported data type array", are in
> kylin2.3 hive data storage array before running this type is no problem,
> there is the lead in building a cube when the third step is as follows
> "org. apache. kylin. engine. mr. Exception. MapReduceException: no counters
> for the job", could you tell me how to solve the problem without changing
> data structure situation now? please look up attachment.
> !image-2018-12-20-10-59-04-060.png!
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