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https://issues.apache.org/jira/browse/DRILL-7143?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16809540#comment-16809540
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ASF GitHub Bot commented on DRILL-7143:
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paul-rogers commented on issue #1726: DRILL-7143: Support default value for
empty columns
URL: https://github.com/apache/drill/pull/1726#issuecomment-479760600
Additional fixes: for Boolean and Decimal issues. Turns out the column
writers for these types had some issues, now fixed. A few more issues need to
be addressed before this PR is done.
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> 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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