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https://issues.apache.org/jira/browse/MADLIB-1171?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Frank McQuillan updated MADLIB-1171:
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Attachment: p101.png
Another example attached
This is the case for some models we may need to normalize (e.g. keep output
separately from input when output consists of more than one row). e.g.,
grouping
> Support model versioning in output tables
> -----------------------------------------
>
> Key: MADLIB-1171
> URL: https://issues.apache.org/jira/browse/MADLIB-1171
> Project: Apache MADlib
> Issue Type: New Feature
> Components: All Modules
> Reporter: Frank McQuillan
> Priority: Major
> Fix For: v2.0
>
> Attachments: p100.png, p101.png
>
>
> Context
> For many MADlib modules, <out_table> contains the separate models for each
> group and <out_table>_summary contains the common model data for all groups.
> Modeling versioning can be awkward since the model output table and model
> summary table need to be explicitly dropped between runs.
> Story
> As a data scientist, I want to perform multiple runs without having to drop
> tables, so that I can easily get a history of the model runs with clear
> versioning.
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