[jira] [Created] (MRQL-96) Develop a MRQL debugger

["Leonidas Fegaras (JIRA)" <ji...@apache.org>]

Leonidas Fegaras created MRQL-96:
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             Summary: Develop a MRQL debugger
                 Key: MRQL-96
                 URL: https://issues.apache.org/jira/browse/MRQL-96
             Project: MRQL
          Issue Type: New Feature
          Components: Evaluation, Query Translation
    Affects Versions: 0.9.8
            Reporter: Leonidas Fegaras
            Assignee: Leonidas Fegaras
            Priority: Minor


This patch introduces a novel query debugger based on the how-provenance information provided by the Provenance component addressed in MRQL-93. The debugger is a GUI based on JTree that allows to navigate through the provenance data associated with the query results in both forward and backward directions. The command to debug an MRQL query e is {{debug  e}} for coarse-grain debugging or {{debug all e}} for fine-grain debugging. The GUI allows you to filter out the output or the input data to reduce the amount of information on screen.



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