drill-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Julian Hyde (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DRILL-3929) Support the ability to query database tables using external indices
Date Tue, 10 Nov 2015 23:36:11 GMT

    [ https://issues.apache.org/jira/browse/DRILL-3929?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14999592#comment-14999592
] 

Julian Hyde commented on DRILL-3929:
------------------------------------

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.  



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message