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https://issues.apache.org/jira/browse/MADLIB-1001?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15308683#comment-15308683
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Frank McQuillan commented on MADLIB-1001:
-----------------------------------------
In the user docs, please show an example of how:
1) user can do a join from output table to pick up additional columns of
interest from the source table
2) user can use a view in a workflow. e.g., output from sessionization gets
input into path function
> Sessionization - Phase 2 (output controls)
> ------------------------------------------
>
> Key: MADLIB-1001
> URL: https://issues.apache.org/jira/browse/MADLIB-1001
> Project: Apache MADlib
> Issue Type: New Feature
> Components: Module: Utilities
> Reporter: Frank McQuillan
> Assignee: Nandish Jayaram
> Priority: Minor
> Labels: gsoc2016, starter
> Fix For: v1.9.1
>
>
> Story
> As a data scientist, I want to perform session reconstruction on my data set,
> so that I can prepare for input into other algorithms like path functions, or
> predictive analytics algorithms.
> This is a follow on to
> https://issues.apache.org/jira/browse/MADLIB-909
> to add optional output controls.
> Details
> Proposed interface changes:
> params (optional)
> TEXT, default: NULL. Parameters for sessionization in a comma-delimited
> string of key-value pairs. See the description below for details.
> Parameters
> Parameters in this section are supplied in the params argument as a string
> containing a comma-delimited list of key-value pairs. All of these named
> parameters are optional, and their order does not matter. You must use the
> format <param_name> = <value> to specify the value of a parameter, otherwise
> the parameter is ignored.
> {code}
> ‘output_all_cols = <value>,
> create_view = <value>'
> {code}
> Parameters
> output_all_cols
> BOOLEAN default: FALSE. Controls which columns are output. If FALSE,
> only the partition, time stamp and the generated session ID columns are
> output. (The assumption is that the partition columns together with the time
> stamp column will be sufficient to perform a join with the input table.) If
> TRUE, all columns from the source table are output in addition to the
> generated session ID.
> create_view
> BOOLEAN default: TRUE. Determines whether to create a view or
> materialize a table as output. If you only needed session info once, creating
> a view could be significantly faster than materializing as a table.
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