[jira] [Closed] (MRQL-93) Support query evaluation tracing and how-provenance

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

     [ https://issues.apache.org/jira/browse/MRQL-93?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Leonidas Fegaras closed MRQL-93.
--------------------------------
    Resolution: Fixed

> Support query evaluation tracing  and how-provenance
> ----------------------------------------------------
>
>                 Key: MRQL-93
>                 URL: https://issues.apache.org/jira/browse/MRQL-93
>             Project: MRQL
>          Issue Type: New Feature
>          Components: Evaluation, Query Translation
>    Affects Versions: 0.9.8
>            Reporter: Leonidas Fegaras
>            Assignee: Leonidas Fegaras
>            Priority: Critical
>
> With this new feature, one can trace any piece of a query result to the input data that contributed to the result as well as the detailed operations used to derive the result. This is called why- and how-provenance in data analysis. A traced query will be lifted so that its output will contain the provenance information. There will be a GUI (based on JTree) to lazily navigate through the provenance data.



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