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From "Dumindu Buddhika (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (PHOENIX-953) Support UNNEST for ARRAY
Date Fri, 21 Aug 2015 01:44:45 GMT

     [ https://issues.apache.org/jira/browse/PHOENIX-953?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Dumindu Buddhika updated PHOENIX-953:
-------------------------------------
    Attachment:     (was: PHOENIX-953-v3.patch)

> Support UNNEST for ARRAY
> ------------------------
>
>                 Key: PHOENIX-953
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-953
>             Project: Phoenix
>          Issue Type: Sub-task
>            Reporter: James Taylor
>            Assignee: Dumindu Buddhika
>         Attachments: PHOENIX-953-v1.patch, PHOENIX-953-v2.patch
>
>
> The UNNEST built-in function converts an array into a set of rows. This is more than
a built-in function, so should be considered an advanced project.
> For an example, see the following Postgres documentation: http://www.postgresql.org/docs/8.4/static/functions-array.html
> http://www.anicehumble.com/2011/07/postgresql-unnest-function-do-many.html
> http://tech.valgog.com/2010/05/merging-and-manipulating-arrays-in.html
> So the UNNEST is a way of converting an array to a flattened "table" which can then be
filtered on, ordered, grouped, etc.



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