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https://issues.apache.org/jira/browse/IGNITE-14940?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ivan Bessonov updated IGNITE-14940:
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Epic Link: IGNITE-17304
> Investigation parallel index scan
> ---------------------------------
>
> Key: IGNITE-14940
> URL: https://issues.apache.org/jira/browse/IGNITE-14940
> Project: Ignite
> Issue Type: Improvement
> Components: sql
> Reporter: Taras Ledkov
> Priority: Major
>
> Motivation: 2.x version implements {{queryParallelism}} by creation index
> segments. Each segment contains subset of partitions. This approach has
> several shortcomings:
> - index scans parallelism cannot be changed / scaled on runtime.
> - we have always scan all segments (looks like virtual MapNode for query);
> - many index storages for one logical index.
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