You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@drill.apache.org by "Jacques Nadeau (JIRA)" <ji...@apache.org> on 2014/12/29 00:31:21 UTC
[jira] [Updated] (DRILL-1341) Provide efficient execution path to
return metadata for BI tools
[ https://issues.apache.org/jira/browse/DRILL-1341?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jacques Nadeau updated DRILL-1341:
----------------------------------
Component/s: Execution - Flow
Fix Version/s: (was: 0.8.0)
Future
> Provide efficient execution path to return metadata for BI tools
> ----------------------------------------------------------------
>
> Key: DRILL-1341
> URL: https://issues.apache.org/jira/browse/DRILL-1341
> Project: Apache Drill
> Issue Type: Improvement
> Components: Execution - Flow
> Affects Versions: 0.4.0
> Reporter: Neeraja
> Fix For: Future
>
>
> BI tools need metadata to work with query engines.
> Some BI tool retrieve metadata and data in a single query, but majority of tools does this in 2 steps. The first step is getting metadata and the second is actually use that metadata to retrieve data.
> The metadata query looks like below for ex: In tableau.
> select * from (select * from dfs.`default`.`/opt/drill/raw-files/click1.json`) `TableauSQL` where (0=1);
> This tracking bug is to create an efficient execution path for Drill so that Drill recognizes the metadata queries and returns it quickly rather than executing complete queries.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)