hive-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Stan Rosenberg (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-6476) Support Append with Dynamic Partitioning
Date Tue, 06 Jan 2015 02:59:35 GMT

    [ https://issues.apache.org/jira/browse/HIVE-6476?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14265606#comment-14265606
] 

Stan Rosenberg commented on HIVE-6476:
--------------------------------------

It's been almost a year since last update.  Could someone please elaborate on what sort of
corner cases must be considered?  I would imagine that writing output of pig script into a
_mutable_ partitioned hive table is a fairly standard and quite required feature of hcatalog,
but perhaps I am missing something.

> 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.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message