[jira] [Resolved] (BEAM-2255) support ORDER BY clause

["Jean-Baptiste Onofré (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/BEAM-2255?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jean-Baptiste Onofré resolved BEAM-2255.
----------------------------------------
       Resolution: Fixed
    Fix Version/s: 2.1.0

> support ORDER BY clause
> -----------------------
>
>                 Key: BEAM-2255
>                 URL: https://issues.apache.org/jira/browse/BEAM-2255
>             Project: Beam
>          Issue Type: New Feature
>          Components: dsl-sql
>            Reporter: James Xu
>            Assignee: James Xu
>             Fix For: 2.1.0
>
>
> Currently Beam does not have `global sort` support[1]. So we will implement a limited version of `ORDER BY` using `org.apache.beam.sdk.transforms.Top` for now. So it will support sql like:
> {code:sql}
> select * from t order by id desc limit 10;
> {code}
> but not support `ORDER BY` without a `limit`:
> {code:sql}
> select * from t order by id desc
> {code}
> and also not support `ORDER BY` with a `offset`:
> {code:sql}
> select * from t order by id desc limit 10, 10;
> {code}
> [1]. https://lists.apache.org/thread.html/bc0e65a3bb653b8fd0db96bcd4c9da5af71a71af5a5639a472167808@1464278191@%3Cdev.beam.apache.org%3E



--
This message was sent by Atlassian JIRA
(v6.3.15#6346)