[jira] [Created] (IMPALA-7842) Refactor FrontEnd to make plan fragments available for testing

["Paul Rogers (JIRA)" <ji...@apache.org>]

Paul Rogers created IMPALA-7842:
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             Summary: Refactor FrontEnd to make plan fragments available for testing
                 Key: IMPALA-7842
                 URL: https://issues.apache.org/jira/browse/IMPALA-7842
             Project: IMPALA
          Issue Type: Improvement
          Components: Frontend
    Affects Versions: Impala 3.0
            Reporter: Paul Rogers
            Assignee: Paul Rogers


Today, the {{FrontEnd}} class uses a functional model to generate a plan: pass in SQL text to the {{createExecRequest()}} method and get back a Thrift plan ready for serialization.

For unit testing, however, we need access to the intermediate plan fragments produced by the planner. Inspecting only the Thrift version results in loss of important details.

This ticket asks to create a new {{PlanCtx}} which can capture the details for testing.



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