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https://issues.apache.org/jira/browse/MADLIB-917?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15178368#comment-15178368
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Frank McQuillan commented on MADLIB-917:
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passes acceptance test
> Path - window functions (multiple matches per partition, 1 window per match)
> ----------------------------------------------------------------------------
>
> Key: MADLIB-917
> URL: https://issues.apache.org/jira/browse/MADLIB-917
> Project: Apache MADlib
> Issue Type: New Feature
> Components: Module: Utilities
> Affects Versions: v1.9
> Reporter: Frank McQuillan
> Assignee: Rahul Iyer
> Fix For: v1.9
>
> Attachments: Ecommerce data set for path test 3.csv, path query3.sql
>
>
> Story
> As a user, I want to define symbols so that I can define a regular expression
> of symbols to identify sequences of events that I care about.
> Partition:
> 1) Multiple matches per partition in this story.
> 2) Note that the match in the data might not span the whole partition, that
> is, that matched rows could just be a subset of the rows in the partition.
> Window:
> 1) Limited to 1 window per partition.
> Other
> 1) Club rows together in the case where there are multiple matches per
> partition, when doing aggregate/window functions. E.g., if doing sum of a
> revenue column, then sum all rows from all matches (as opposed to a separate
> sum for each match).
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