Igor Guzenko created DRILL-7115:
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             Summary: Improve Hive schema show tables performance
                 Key: DRILL-7115
                 URL: https://issues.apache.org/jira/browse/DRILL-7115
             Project: Apache Drill
          Issue Type: Improvement
          Components: Storage - Hive, Storage - Information Schema
            Reporter: Igor Guzenko
            Assignee: Igor Guzenko


In Sqlline(Drill), "show tables" on a Hive schema is taking nearly 15mins to 
20mins. The schema has nearly ~8000 tables.
Whereas the same in beeline(Hive) is throwing the result in a split second(~ 
0.2 secs).

I tested the same in my test cluster by creating 6000 tables(empty!) in Hive 
and then doing "show tables" in Drill. It took more than 2 mins(~140 secs).



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