Aleksey Plekhanov created IGNITE-16507:
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             Summary: Calcite engine. Redundant sort node when rewriting index 
scan on index rebuild
                 Key: IGNITE-16507
                 URL: https://issues.apache.org/jira/browse/IGNITE-16507
             Project: Ignite
          Issue Type: Improvement
            Reporter: Aleksey Plekhanov


When the query plan has an index scan, but the index is rebuilding we rewrite 
this scan to the chain of table scan/sort/spool/project nodes (see 
IGNITE-16111). In some cases sort node is redundant, but still created, for 
example, when index scan is used only for filtering:
{noformat}
SELECT * FROM emp WHERE dep_id = 10
{noformat}




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