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https://issues.apache.org/jira/browse/HIVE-8115?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14134809#comment-14134809
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Xiaobing Zhou commented on HIVE-8115:
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Just verified, [STX]my-key[ETX] is fine for empty value with specific key,
however, [STX][EXT]my-value doesn't really work. So the conclusion is empty
key will hang the query.
> Hive select query hang when fields contain map
> ----------------------------------------------
>
> Key: HIVE-8115
> URL: https://issues.apache.org/jira/browse/HIVE-8115
> Project: Hive
> Issue Type: Bug
> Affects Versions: 0.13.0
> Reporter: Xiaobing Zhou
> Assignee: Xiaobing Zhou
> Fix For: 0.14.0
>
> Attachments: createTable.hql, data
>
>
> Attached the repro of the issue. When creating an table loading the data
> attached, all hive query with hangs even just select * from the table.
> repro steps:
> 1. run createTable.hql
> 2. hadoop fs ls -put data /data
> 3. LOAD DATA INPATH '/data' OVERWRITE INTO TABLE testtable;
> 4. SELECT * FROM testtable;
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