You are viewing a plain text version of this content. The canonical link for it is here.

Posted to oak-issues@jackrabbit.apache.org by "Chetan Mehrotra (JIRA)" <ji...@apache.org> on 2016/10/10 04:32:20 UTC

[jira] [Commented] (OAK-4081) Faster cost calculation for property indexes and traversal

    [ https://issues.apache.org/jira/browse/OAK-4081?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15561242#comment-15561242 ] 

Chetan Mehrotra commented on OAK-4081:
--------------------------------------

Some optimization is now implemented in OAk-4904 wrt unique indexes. Reordering within property index is still pending

> Faster cost calculation for property indexes and traversal
> ----------------------------------------------------------
>
>                 Key: OAK-4081
>                 URL: https://issues.apache.org/jira/browse/OAK-4081
>             Project: Jackrabbit Oak
>          Issue Type: Bug
>          Components: query
>            Reporter: Thomas Mueller
>            Assignee: Thomas Mueller
>             Fix For: 1.6
>
>
> There are sometimes many property indexes, therefore cost calculation is slow. As seen in OAK-4076, we could re-order the indexes and stop once we found a good one (specially for unique indexes).
> Also, currently we still check if traversal is faster than using an index. In many cases this check is not needed.



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