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From "Sahil Takiar (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-14169) Honor --incremental flag only if TableOutputFormat is used
Date Mon, 11 Jul 2016 16:49:11 GMT

    [ https://issues.apache.org/jira/browse/HIVE-14169?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15371136#comment-15371136
] 

Sahil Takiar commented on HIVE-14169:
-------------------------------------

Test failures look unrelated, [~thejas] and [~spena] can you review?

> Honor --incremental flag only if TableOutputFormat is used
> ----------------------------------------------------------
>
>                 Key: HIVE-14169
>                 URL: https://issues.apache.org/jira/browse/HIVE-14169
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Beeline
>            Reporter: Sahil Takiar
>            Assignee: Sahil Takiar
>         Attachments: HIVE-14169.1.patch
>
>
> * When Beeline prints out a {{ResultSet}} to stdout it uses the {{BeeLine.print}} method
> * This method takes the {{ResultSet}} from the completed query and uses a specified {{OutputFormat}}
to print the rows (by default it uses {{TableOutputFormat}})
> * The {{print}} method also wraps the {{ResultSet}} into a {{Rows}} class (either a {{IncrementalRows}}
or a {{BufferedRows}} class)
> The advantage of {{BufferedRows}} is that it can do a global calculation of the column
width, however, this is only useful for {{TableOutputFormat}}. So there is no need to buffer
all the rows if a different {{OutputFormat}} is used. This JIRA will change the behavior of
the {{--incremental}} flag so that it is only honored if {{TableOutputFormat}} is used.



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