You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@hive.apache.org by "Zoltan Haindrich (JIRA)" <ji...@apache.org> on 2017/11/21 15:08:00 UTC
[jira] [Updated] (HIVE-11160) Auto-gather column stats
[ https://issues.apache.org/jira/browse/HIVE-11160?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Zoltan Haindrich updated HIVE-11160:
------------------------------------
Description: Hive will collect table stats when set hive.stats.autogather=true during the INSERT OVERWRITE command. And then the users need to collect the column stats themselves using "Analyze" command. In this patch, the column stats will also be collected automatically. More specifically, INSERT OVERWRITE will automatically create new column stats. INSERT INTO will automatically merge new column stats with existing ones. (was: Hive will collect table stats when set hive.stats.autogather=true during the INSERT OVERWRITE command. And then the users need to collect the column stats themselves using "Analyze" command. In this patch, the column stats will also be collected automatically. More specifically, INSERT OVERWRITE will automatically create new column stats. INSERT INTO will automatically merge new column stats with existing ones.)
> Auto-gather column stats
> ------------------------
>
> Key: HIVE-11160
> URL: https://issues.apache.org/jira/browse/HIVE-11160
> Project: Hive
> Issue Type: New Feature
> Reporter: Pengcheng Xiong
> Assignee: Pengcheng Xiong
> Attachments: HIVE-11160.01.patch, HIVE-11160.02.patch, HIVE-11160.03.patch, HIVE-11160.04.patch, HIVE-11160.05.patch, HIVE-11160.06.patch, HIVE-11160.07.patch, HIVE-11160.08.patch, HIVE-11160.09.patch
>
>
> Hive will collect table stats when set hive.stats.autogather=true during the INSERT OVERWRITE command. And then the users need to collect the column stats themselves using "Analyze" command. In this patch, the column stats will also be collected automatically. More specifically, INSERT OVERWRITE will automatically create new column stats. INSERT INTO will automatically merge new column stats with existing ones.
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)