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From "Cheng Lian (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-2973) Add a way to show tables without executing a job
Date Sun, 21 Dec 2014 13:00:17 GMT

    [ https://issues.apache.org/jira/browse/SPARK-2973?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14255151#comment-14255151
] 

Cheng Lian commented on SPARK-2973:
-----------------------------------

How about adding a special {{LocalRDD}} that inherits {{RDD}} but doesn't trigger any distributed
jobs? Essentially it's just a normal {{Seq}} but behaves like an {{RDD}}. Then we can let
{{HiveNativeCommand}} (or {{NativeCommand}} in branch-1.2) return a {{LocalRDD}} in {{.execute()}}.

> Add a way to show tables without executing a job
> ------------------------------------------------
>
>                 Key: SPARK-2973
>                 URL: https://issues.apache.org/jira/browse/SPARK-2973
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>            Reporter: Aaron Davidson
>            Assignee: Cheng Lian
>            Priority: Critical
>             Fix For: 1.2.0
>
>
> Right now, sql("show tables").collect() will start a Spark job which shows up in the
UI. There should be a way to get these without this step.



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