You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@drill.apache.org by "Steven Phillips (JIRA)" <ji...@apache.org> on 2015/06/26 02:37:04 UTC
[jira] [Created] (DRILL-3381) Add option to distribute partition
keys in CTAS
Steven Phillips created DRILL-3381:
--------------------------------------
Summary: Add option to distribute partition keys in CTAS
Key: DRILL-3381
URL: https://issues.apache.org/jira/browse/DRILL-3381
Project: Apache Drill
Issue Type: Bug
Reporter: Steven Phillips
The current implementation does not redistribute, which would tend to result in a lot of extra files. Specifically, the number of files will be larger by a factor equal to the number of fragments in the final stage of the query. On even a moderately sized cluster, this number could easily be in the thousands, so a table with a 100 different partitions would end up with hundreds of thousands of files.
To allow a workaround for this situation, we should add an option to include an extra distribution, so that all the rows for any given partition are written from the same writer.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)