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Posted to notifications@asterixdb.apache.org by "Taewoo Kim (JIRA)" <ji...@apache.org> on 2017/02/01 18:32:51 UTC

[jira] [Assigned] (ASTERIXDB-1779) Processing the certain function predicates after a simple predicates

     [ https://issues.apache.org/jira/browse/ASTERIXDB-1779?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Taewoo Kim reassigned ASTERIXDB-1779:
-------------------------------------

    Assignee: Taewoo Kim

> Processing the certain function predicates after a simple predicates
> --------------------------------------------------------------------
>
>                 Key: ASTERIXDB-1779
>                 URL: https://issues.apache.org/jira/browse/ASTERIXDB-1779
>             Project: Apache AsterixDB
>          Issue Type: Improvement
>            Reporter: Taewoo Kim
>            Assignee: Taewoo Kim
>
> For example, if we have the following AQL query,
> {code}
> for $i in dataset MyData
>    where $i.id < 5 and edit-distance($i.name, "Arnold") < 2
>    return $i;
> {code}
> It may be better to process *$i.id < 5* predicate first and then process *edit-distance($i.name, "Arnold")* predicate since the processing cost of the latter is higher than that of the former.  



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