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Alexei Scherbakov commented on IGNITE-4523: ------------------------------------------- I've found out what current implementation doens't work with distributed queries. But I think this feature should be compatible with it. Could anyone take a look at current PR state while I'm looking deeper into dsitributed queries code? TC looks OK: http://ci.ignite.apache.org/viewQueued.html?itemId=424438 > 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: Alexei Scherbakov > 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. -- This message was sent by Atlassian JIRA (v6.3.4#6332)