Paul Rogers created DRILL-7143:
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Summary: 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
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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