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Posted to issues@hive.apache.org by "Vihang Karajgaonkar (JIRA)" <ji...@apache.org> on 2016/07/06 18:27:11 UTC
[jira] [Commented] (HIVE-14169) Beeline Row printing should only
calculate the width if TableOutputFormat is used
[ https://issues.apache.org/jira/browse/HIVE-14169?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15364819#comment-15364819 ]
Vihang Karajgaonkar commented on HIVE-14169:
--------------------------------------------
Hi Sahil,
Just curious, is this related to HIVE-14135?
Thanks!
> Beeline Row printing should only calculate the width 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
>
> * 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 {{Rows}} class will calculate the optimal width that each row in the {{ResultSet}} should be displayed with
> * However, this width is only relevant / used by {{TableOutputFormat}}
> We should modify the logic so that the width is only calculated if {{TableOutputFormat}} is used. This will save CPU cycles when printing records out to the user.
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