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https://issues.apache.org/jira/browse/IMPALA-10402?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17253218#comment-17253218
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Shant Hovsepian commented on IMPALA-10402:
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In order to optimize logical views in the presence of constraints the defined
key columns need to propagate from the base table reference through the result
expression list of select statements.
> Optimize logical view joins with table constraints
> --------------------------------------------------
>
> Key: IMPALA-10402
> URL: https://issues.apache.org/jira/browse/IMPALA-10402
> Project: IMPALA
> Issue Type: Sub-task
> Components: Frontend
> Reporter: Shant Hovsepian
> Priority: Major
>
> Currently table constraints such as primary and foreign keys are defined for
> base tables, we should be able to infer these key columns and apply similar
> optimizations for joins on key column with logical views.
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