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From "Xu Mingmin (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (BEAM-301) Add a Beam SQL DSL
Date Thu, 06 Apr 2017 16:55:41 GMT

    [ https://issues.apache.org/jira/browse/BEAM-301?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15959283#comment-15959283
] 

Xu Mingmin commented on BEAM-301:
---------------------------------

Regarding of {{STREAM}} keyword, it's determined by the type of source, aka {{BoundedSource}}
and {{UnBoundedSource}}, related with the type of {{Table}} in existing Beam SQL implementation.
In a Beam pipeline, it's not set explicitly {{BoundedSource}} or {{UnBoundedSource}}. 



> Add a Beam SQL DSL
> ------------------
>
>                 Key: BEAM-301
>                 URL: https://issues.apache.org/jira/browse/BEAM-301
>             Project: Beam
>          Issue Type: New Feature
>          Components: sdk-ideas
>            Reporter: Jean-Baptiste Onofré
>            Assignee: Xu Mingmin
>
> The SQL DSL helps developers to build a Beam pipeline from SQL statement in String directly.

> In Phase I, it starts to support INSERT/SELECT queries with FILTERs, one example SQL
as below:
> {code}
> INSERT INTO `SUB_USEREVENT` (`SITEID`, `PAGEID`, `PAGENAME`, `EVENTTIMESTAMP`)
> (SELECT STREAM `USEREVENT`.`SITEID`, `USEREVENT`.`PAGEID`, `USEREVENT`.`PAGENAME`, `USEREVENT`.`EVENTTIMESTAMP`
> FROM `USEREVENT` AS `USEREVENT`
> WHERE `USEREVENT`.`SITEID` > 10)
> {code}
> A design doc is available at https://docs.google.com/document/d/1Uc5xYTpO9qsLXtT38OfuoqSLimH_0a1Bz5BsCROMzCU/edit?usp=sharing.



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