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https://issues.apache.org/jira/browse/IGNITE-4509?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16007807#comment-16007807
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Sergey Kalashnikov commented on IGNITE-4509:
--------------------------------------------

[~sergi.vladykin], [~vozerov] Can you please review the changes?

> SQL: query with condition on affinity columns and without joins and 
> subqueries can be replaced with GET
> -------------------------------------------------------------------------------------------------------
>
>                 Key: IGNITE-4509
>                 URL: https://issues.apache.org/jira/browse/IGNITE-4509
>             Project: Ignite
>          Issue Type: Task
>          Components: sql
>    Affects Versions: 1.8
>            Reporter: Vladimir Ozerov
>            Assignee: Sergey Kalashnikov
>              Labels: performance, sql
>             Fix For: 2.1
>
>
> Simple SQL queries usually demonstrate negative scalability when more nodes 
> are added. 
> Consider the following query:
> {code}
> SELECT * FROM Person p
> WHERE p.id = ?
> {code}
> If {{Person.id}} is affinity field, then query can be replaced with plain 
> {{IgniteCache.get}} or some specialized version of GET, which will return 
> only desired fields. This optimization will guarantee smooth scale with any 
> number of nodes.



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