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Posted to dev@jena.apache.org by "Andy Seaborne (JIRA)" <ji...@apache.org> on 2014/01/07 11:03:52 UTC

[jira] [Commented] (JENA-619) Optimization of filter placement and BGP reordering.

    [ https://issues.apache.org/jira/browse/JENA-619?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13864055#comment-13864055 ] 

Andy Seaborne commented on JENA-619:
------------------------------------

One possibility is to split filter placement into two phases - all algebra operations except BGPs, then a separate pass to place within, and breaking up, BGPs.  This allows controlling the reordering of triple/quads patterns by the storage layer, which may have more detailed information, and the filter placement process.

See
[users@ enquiry|http://mail-archives.apache.org/mod_mbox/jena-users/201401.mbox/%3CEMEW3|890578526c59c0dea4fc317a030a0502q05CZZ07sza1g10|ecs.soton.ac.uk|62403AD2-AD43-468B-9269-87A106AA1DD5%40ecs.soton.ac.uk%3E] and the [reply|http://mail-archives.apache.org/mod_mbox/jena-users/201401.mbox/%3C52CBCC3C.9050404%40apache.org%3E].

> Optimization of filter placement and BGP reordering.
> ----------------------------------------------------
>
>                 Key: JENA-619
>                 URL: https://issues.apache.org/jira/browse/JENA-619
>             Project: Apache Jena
>          Issue Type: Improvement
>            Reporter: Andy Seaborne
>
> As a follow-on from JENA-595, now consider the interaction of filter placement and BGP reordering.



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