[jira] [Assigned] (DRILL-7143) Enforce column-level constraints when using a schema

["Arina Ielchiieva (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DRILL-7143?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Arina Ielchiieva reassigned DRILL-7143:
---------------------------------------

    Assignee: Paul Rogers  (was: Arina Ielchiieva)

> Enforce column-level constraints when using a schema
> ----------------------------------------------------
>
>                 Key: DRILL-7143
>                 URL: https://issues.apache.org/jira/browse/DRILL-7143
>             Project: Apache Drill
>          Issue Type: Improvement
>    Affects Versions: 1.16.0
>            Reporter: Paul Rogers
>            Assignee: Paul Rogers
>            Priority: Major
>             Fix For: 1.16.0
>
>
> The recently added schema framework enforces schema constraints at the table level. We now wish to add additional constraints at the column level.
> * If a column is marked as "strict", then the reader will use the exact type and mode from the column schema, or fail if it is not possible to do so.
> * If a column is marked as required, and provides a default value, then that value is used instead of 0 if a row is missing a value for that column.
> This PR may also contain other fixes the the base functional revealed through additional testing.



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