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https://issues.apache.org/jira/browse/HIVE-6476?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15252812#comment-15252812
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Sushanth Sowmyan commented on HIVE-6476:
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Yup, that would be the perfect place to start. And yes, I'll assign this jira
to you. Thanks for working on it! :)
> Support Append with Dynamic Partitioning
> ----------------------------------------
>
> Key: HIVE-6476
> URL: https://issues.apache.org/jira/browse/HIVE-6476
> Project: Hive
> Issue Type: Sub-task
> Components: HCatalog, Metastore, Query Processor, Thrift API
> Reporter: Sushanth Sowmyan
>
> Currently, we do not support mixing dynamic partitioning and append in the
> same job. One reason is that we need exhaustive testing of corner cases for
> that, and a second reason is the behaviour of add_partitions. To support
> dynamic partitioning with append, we'd have to have a
> add_partitions_if_not_exist call, rather than an add_partitions call.
> Thus, the current implementation in HIVE-6475 assumes immutability for all
> dynamic partitioning jobs, irrespective of whether or not the table is marked
> as mutable or not.
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