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From "Albert Lee (JIRA)" <j...@apache.org>
Subject [jira] [Created] (PHOENIX-4398) Change QueryCompiler get column expressions process from serial to parallel.
Date Wed, 22 Nov 2017 11:48:00 GMT
Albert Lee created PHOENIX-4398:
-----------------------------------

             Summary: Change QueryCompiler get column expressions process from serial to parallel.
                 Key: PHOENIX-4398
                 URL: https://issues.apache.org/jira/browse/PHOENIX-4398
             Project: Phoenix
          Issue Type: Improvement
    Affects Versions: 4.11.0, 4.13.0
            Reporter: Albert Lee
             Fix For: 4.13.0, 4.11.0


When QueryCompiler compile a select sql, the process of getting column expressions is a serial
process. The performance is ok when the table is narrow. But when compile a wide table(e.g.
130 columns in my use case), The time-consuming of this step is very high, over 70ms. So I
change TupleProjector(PTable projectedTable) from serial for loop to parallel future.



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