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Posted to issues@ignite.apache.org by "Vladimir Ozerov (JIRA)" <ji...@apache.org> on 2017/11/13 07:15:01 UTC
[jira] [Closed] (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 closed IGNITE-6076.
-----------------------------------
> 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.
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