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From "Humair M (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DRILL-5574) Select column range
Date Wed, 07 Jun 2017 13:32:18 GMT
Humair M created DRILL-5574:

             Summary: Select column range
                 Key: DRILL-5574
                 URL: https://issues.apache.org/jira/browse/DRILL-5574
             Project: Apache Drill
          Issue Type: Improvement
          Components: SQL Parser
    Affects Versions: 1.10.0
         Environment: All
            Reporter: Humair M
            Priority: Trivial

Ability to select column ranges would be useful. When dealing with wide files being able to
select sequential range of columns without specifying each column will improve the usability.

So instead of this:
select columns[1], columns[2], columns[3], columns[8], columns[9], columns[10] from `data.csv`

use this:
select columns[1-3], columns[8-10] from `data.csv`

On a sidenote for extremely wide files (10K columns) the only way to query the data or load
it into native tables is to chop it up first as Java is runnint out of the constant limits
(error: too many constants) when querying the file directly or creating a table from it. This
issue has been reported elsewhere.

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