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

Posted to issues@ignite.apache.org by "Vladimir Ozerov (JIRA)" <ji...@apache.org> on 2017/11/13 07:15:00 UTC

[jira] [Resolved] (IGNITE-6076) SQL: Local query should not go through map-reduce phase

     [ https://issues.apache.org/jira/browse/IGNITE-6076?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vladimir Ozerov resolved IGNITE-6076.
-------------------------------------
    Resolution: Won't Fix

I was wrong - local query execution is already optimized this way.

> SQL: Local query should not go through map-reduce phase
> -------------------------------------------------------
>
>                 Key: IGNITE-6076
>                 URL: https://issues.apache.org/jira/browse/IGNITE-6076
>             Project: Ignite
>          Issue Type: Task
>          Components: sql
>    Affects Versions: 2.1
>            Reporter: Vladimir Ozerov
>              Labels: performance
>
> Typical query execution consists of map and reduce phases. But if {{local}} flag is set, there is no need for splitting. Instead, we should execute the request in a single map phase, without involving reducer at all. 



--
This message was sent by Atlassian JIRA
(v6.4.14#64029)