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https://issues.apache.org/jira/browse/DRILL-3929?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14999592#comment-14999592
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Julian Hyde commented on DRILL-3929:
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More concretely: I think that physical optimization is too late a phase to
consider indexes. By then you have already (I presume) decided sorting
(collation) and distribution. But the existence of indexes should affect your
choice of sorting & distribution.
It is worrying to me how much query planning Drill leaves until physical (Prel)
time. By then only peephole optimizations are possible.
> Support the ability to query database tables using external indices
> ------------------------------------------------------------------------------
>
> Key: DRILL-3929
> URL: https://issues.apache.org/jira/browse/DRILL-3929
> Project: Apache Drill
> Issue Type: New Feature
> Components: Execution - Relational Operators, Query Planning &
> Optimization
> Reporter: Aman Sinha
> Assignee: Aman Sinha
>
> This is a placeholder for adding support in Drill to query database tables
> using external indices. I will add more details about the use case and a
> preliminary design proposal.
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