Rajesh Balamohan created HIVE-22789:
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             Summary: Table details are retrieved twice during query 
compilation phase
                 Key: HIVE-22789
                 URL: https://issues.apache.org/jira/browse/HIVE-22789
             Project: Hive
          Issue Type: Improvement
          Components: HiveServer2
            Reporter: Rajesh Balamohan


https://issues.apache.org/jira/browse/HIVE-22366 takes care of normalizing 
table details so that {{tabNameToTabObject}} is effectively used in 
CalcitePlanner.

https://github.com/apache/hive/blob/master/ql/src/java/org/apache/hadoop/hive/ql/parse/CalcitePlanner.java#L513
 effectively invalidates entire {{tabNameToTabObject}} cache and forces to 
recompute the details. It would be good to check whether this can be avoided.



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