[
https://issues.apache.org/jira/browse/HIVE-23391?focusedWorklogId=766636&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-766636
]
ASF GitHub Bot logged work on HIVE-23391:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 05/May/22 13:22
Start Date: 05/May/22 13:22
Worklog Time Spent: 10m
Work Description: deniskuzZ merged PR #3083:
URL: https://github.com/apache/hive/pull/3083
Issue Time Tracking
-------------------
Worklog Id: (was: 766636)
Time Spent: 1h 10m (was: 1h)
> Non blocking ALTER TABLE add column
> -----------------------------------
>
> Key: HIVE-23391
> URL: https://issues.apache.org/jira/browse/HIVE-23391
> Project: Hive
> Issue Type: Improvement
> Reporter: Zoltan Chovan
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.0.0
>
> Attachments: HIVE-23391.2.patch, HIVE-23391.3.patch,
> HIVE-23391.4.patch, HIVE-23391.patch
>
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
> A long running query can block a simple add column query, as the add column
> will require a DDL_EXCLUSIVE lock currently. By changing this to a shared
> lock, this metadata only query can be executed without having to wait for the
> previous query to finish.
--
This message was sent by Atlassian Jira
(v8.20.7#820007)
