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https://issues.apache.org/jira/browse/IGNITE-4523?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15861346#comment-15861346
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Vladimir Ozerov edited comment on IGNITE-4523 at 2/10/17 2:37 PM:
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[~skalashnikov], [~ascherbakov],
>From what I see we added new fields to {{Query}} and {{ScanQuery}}. But these
>classes are {{Serializable}} (btw, does anyone know why? 0_o), and these
>changes makes them binary incompatible with previous versions.
Do we really need it in {{1.9}}? May be it makes sense to move the change to
{{2.0}}?
was (Author: vozerov):
[~skalashnikov], [~ascherbakov],
>From what I see we added new fields to {{Query}} and {{ScanQuery}}. But these
>classes are {{Serializable}} (btw, does anyone know why? 0_o), and these
>changes makes them binary incompatible with previous versions.
Do we really need in {{1.9}}? May be it makes sense to move the change to
{{2.0}}?
> Allow distributed SQL query execution over explicit set of partitions
> ---------------------------------------------------------------------
>
> Key: IGNITE-4523
> URL: https://issues.apache.org/jira/browse/IGNITE-4523
> Project: Ignite
> Issue Type: Improvement
> Components: cache, SQL
> Affects Versions: 1.8
> Reporter: Alexei Scherbakov
> Assignee: Sergey Kalashnikov
> Fix For: 1.9
>
>
> 3Currently distributed SQL query is executed on all nodes containing primary
> partitions for a cache, sending map query requests on all nodes in grid.
> Sometimes we know in advance which partitions hold a data for query, on
> example, in case of custom affinity function.
> Therefore it's possible to reduce number of nodes receiving map query request
> by providing explicit set of partitions, which will give significant
> performance advantage and traffic reduction in case of very large clusters.
> Internally we already have such functionality, so the only necessary thing is
> to provide public API for what.
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