You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@drill.apache.org by "Ted Dunning (JIRA)" <ji...@apache.org> on 2013/01/11 02:07:12 UTC
[jira] [Commented] (DRILL-13) Storage Engine: Define Java Interface
[ https://issues.apache.org/jira/browse/DRILL-13?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13550657#comment-13550657 ]
Ted Dunning commented on DRILL-13:
----------------------------------
I think that this misses what we need. The actual storage substrate is something that Drill shouldn't care about.
What Drill cares about is:
- how are records read?
- is the data stored in columnar fashion?
- what is the schema for the data?
- are there multiple views of the data (for instance if the scanner does side effecting columnization)?
- is there locality information available?
I think that the reference interpreter will be clarifying many of these issues.
> Storage Engine: Define Java Interface
> -------------------------------------
>
> Key: DRILL-13
> URL: https://issues.apache.org/jira/browse/DRILL-13
> Project: Apache Drill
> Issue Type: Task
> Reporter: Jacques Nadeau
>
> We're going to need to define a storage engine API. At a minimum, we'll need to generate a Java one. We will probably need to also create a CPP one. This task is for the former. Things that are likely to be included in a the Java interface are: reader (scanner), writer, capabilities interface, schema interface, statistics interface, data layout and ordering
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira