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Posted to dev@hive.apache.org by "Aihua Xu (JIRA)" <ji...@apache.org> on 2015/02/04 16:45:36 UTC
[jira] [Work started] (HIVE-9500) Support nested structs over 24
levels.
[ https://issues.apache.org/jira/browse/HIVE-9500?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Work on HIVE-9500 started by Aihua Xu.
--------------------------------------
> Support nested structs over 24 levels.
> --------------------------------------
>
> Key: HIVE-9500
> URL: https://issues.apache.org/jira/browse/HIVE-9500
> Project: Hive
> Issue Type: Improvement
> Reporter: Aihua Xu
> Assignee: Aihua Xu
> Labels: SerDe
> Fix For: 1.2.0
>
> Attachments: HIVE-9500.1.patch
>
>
> Customer has deeply nested avro structure and is receiving the following error when performing queries.
> 15/01/09 20:59:29 ERROR ql.Driver: FAILED: SemanticException org.apache.hadoop.hive.serde2.SerDeException: Number of levels of nesting supported for LazySimpleSerde is 23 Unable to work with level 24
> Currently we support up to 24 levels of nested structs when hive.serialization.extend.nesting.levels is set to true, while the customers have the requirement to support more than that.
> It would be better to make the supported levels configurable or completely removed (i.e., we can support any number of levels).
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