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Chao Long commented on KYLIN-3731: ---------------------------------- Yes, Kylin support loading array type data from hive and can build successfully, but when I query with array type column, I get some error like "String cannot cast to array". So I think Kylin doesn't really support complex data type. So, I want to know how does your query sql like when you are using kylin2.3. > 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! -- This message was sent by Atlassian JIRA (v7.6.3#76005)