Neeraja created DRILL-1341:
------------------------------
Summary: 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: Bug
Affects Versions: 0.4.0
Reporter: Neeraja
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
(v6.2#6252)
