Taras Ledkov created IGNITE-14940:
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Summary: 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
Fix For: 3.0.0-alpha3
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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