[
https://issues.apache.org/jira/browse/SQOOP-1603?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14180229#comment-14180229
]
Gwen Shapira commented on SQOOP-1603:
-------------------------------------
Just note that there are two types of "merge":
1. Append (this is what Kite's merge actually does) - can be a simple metadata
change to indicate that few files are part of the same data set. Or a single
query to add a new partition into a table in the case of RDBMS.
2. Merge/Update - Typically more involved and requires reading an modifying an
existing data set to insert and update modifications from Sqoop.
The first can be trivially done in the Destroy phase, the second will probably
require a separate phase.
> Sqoop2: Explicit support for Merge in the Sqoop Job lifecyle
> --------------------------------------------------------------
>
> Key: SQOOP-1603
> URL: https://issues.apache.org/jira/browse/SQOOP-1603
> Project: Sqoop
> Issue Type: Bug
> Reporter: Veena Basavaraj
> Assignee: Qian Xu
>
> This ticket was created while reviewing the Kite Connector use case.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
