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Posted to dev@hive.apache.org by "Rajesh Balamohan (JIRA)" <ji...@apache.org> on 2016/11/29 04:12:58 UTC

[jira] [Created] (HIVE-15300) Reuse table information in SemanticAnalyzer::getMetaData to reduce compilation time

Rajesh Balamohan created HIVE-15300:
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             Summary: Reuse table information in SemanticAnalyzer::getMetaData to reduce compilation time
                 Key: HIVE-15300
                 URL: https://issues.apache.org/jira/browse/HIVE-15300
             Project: Hive
          Issue Type: Improvement
          Components: Parser
            Reporter: Rajesh Balamohan
            Priority: Minor


E.g Q88 in tpc-ds takes lots of time to compile and it ends up getting the table details for the same table repeatedly. It took 20+seconds to compile the query.

It would be good to reuse the table information in SemanticAnalyzer::getMetadata.




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