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https://issues.apache.org/jira/browse/IGNITE-13568?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yury Gerzhedovich updated IGNITE-13568:
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Epic Link: IGNITE-19479
> Calcite integration. Decrease bounds of index scan
> --------------------------------------------------
>
> Key: IGNITE-13568
> URL: https://issues.apache.org/jira/browse/IGNITE-13568
> Project: Ignite
> Issue Type: Improvement
> Components: sql
> Reporter: Yury Gerzhedovich
> Priority: Minor
> Labels: calcite2-required, calcite3-required
>
> As of now, we analyze just the first column from predicate to detemine lower
> and upper bounds for complex indexes in case first predicate is not equal. It
> decreasing search space, however for particular cases, it could be not so
> effective, for example, the selectivity of the first column is very low. We
> need to take into account all columns from predicate and suitable index. Need
> to keep in mind that each column at the index could be sorted in a different
> manner.
> Start point right now is
> org.apache.ignite.internal.processors.query.calcite.util.RexUtils#buildIndexConditions,
> could be refactored before the ticked will be started.
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