[jira] [Created] (IGNITE-13568) Calcite integration. Decrease bounds of index scan

["Yury Gerzhedovich (Jira)" <ji...@apache.org>]

Yury Gerzhedovich created IGNITE-13568:
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             Summary: 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


As of now, we analyze just the first column from predicate to detemine lower and upper bounds for complex indexes. 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.



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