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Posted to issues@drill.apache.org by "Paul Rogers (JIRA)" <ji...@apache.org> on 2019/03/03 22:49:00 UTC

[jira] [Created] (DRILL-7074) Fixes and improvements to the scan framework for CSV

Paul Rogers created DRILL-7074:
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             Summary: Fixes and improvements to the scan framework for CSV
                 Key: DRILL-7074
                 URL: https://issues.apache.org/jira/browse/DRILL-7074
             Project: Apache Drill
          Issue Type: Improvement
    Affects Versions: 1.15.0
            Reporter: Paul Rogers
            Assignee: Paul Rogers
             Fix For: 1.16.0


The scan framework is a new set of functionality, based on the result set loader, which is in turn based on the row set abstraction. The scan framework handles things like batch sizing, projection, null columns, implicit columns and more.

Earlier commits added the basics. This PR refines the framework based on the work needed to port the CSV (actually, the "compliant text reader") to the framework. To keep PRs of reasonable size, this PR includes only the framework changes, the actual revised reader will be in a separate PR.



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