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From "Paul Rogers (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (DRILL-1553) Assign NULL value for empty fields in CSV data sources
Date Mon, 19 Jun 2017 00:12:00 GMT

     [ https://issues.apache.org/jira/browse/DRILL-1553?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Paul Rogers reassigned DRILL-1553:

    Assignee: Paul Rogers

> Assign NULL value for empty fields in CSV data sources
> ------------------------------------------------------
>                 Key: DRILL-1553
>                 URL: https://issues.apache.org/jira/browse/DRILL-1553
>             Project: Apache Drill
>          Issue Type: Improvement
>          Components: Execution - Data Types
>            Reporter: Andries Engelbrecht
>            Assignee: Paul Rogers
>             Fix For: Future
> Ability for Drill to assign a NULL value to empty fields in CSV files.
> Option to be set at session or system level to implement this assignment.
> Avoids errors when casting to different data types without the need to check for empty
fields first. Simplifies predicate filters and avoid potential mistakes. Allows for simplification
of joins, especially with columns from different data sources.

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