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Posted to dev@lens.apache.org by "Sushil Mohanty (JIRA)" <ji...@apache.org> on 2015/02/19 06:57:11 UTC

[jira] [Created] (LENS-332) Use prepare statement for query syntax and semantic validation

Sushil Mohanty created LENS-332:
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             Summary: Use prepare statement for query syntax and semantic validation 
                 Key: LENS-332
                 URL: https://issues.apache.org/jira/browse/LENS-332
             Project: Apache Lens
          Issue Type: Improvement
          Components: driver-jdbc
            Reporter: Sushil Mohanty
            Assignee: Sushil Mohanty


Currently we are using "select roughly" for query validation in jdbc driver. Rough query can take more time based on the query complexity and can't guarantee to finish <50ms. On the other hand prepare query is very light weight and we can expect it to finish in defined threshold and is supported by  major DBMS.



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