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https://issues.apache.org/jira/browse/PHOENIX-4815?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16621215#comment-16621215
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Hadoop QA commented on PHOENIX-4815:
------------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12932846/PHOENIX-4815.patch
against master branch at commit 91f085a902357b0a589b6367fb9c5f40b9781c8f.
ATTACHMENT ID: 12932846
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:red}-1 tests included{color}. The patch doesn't appear to include
any new or modified tests.
Please justify why no new tests are needed for this
patch.
Also please list what manual steps were performed to
verify this patch.
{color:red}-1 patch{color}. The patch command could not apply the patch.
Console output:
https://builds.apache.org/job/PreCommit-PHOENIX-Build/2045//console
This message is automatically generated.
> support alter table modify column
> ----------------------------------
>
> Key: PHOENIX-4815
> URL: https://issues.apache.org/jira/browse/PHOENIX-4815
> Project: Phoenix
> Issue Type: Improvement
> Affects Versions: 4.12.0
> Reporter: Jaanai
> Assignee: Jaanai
> Priority: Major
> Attachments: PHOENIX-4815.patch
>
>
> if we want to change max length or scale of fields of variable length type(
> example for :varchar, char and decimal type etc), we can not drop column to
> recreate new column when the table has massive data, which may affects
> online service，meanwhile, it is also very expensive. so sometimes this
> function is very useful.
> Taking ORACLE dialect as an reference
> {code:java}
> alter table
> table_name
> modify
> column_name datatype;
> {code}
> reference link:
> https://docs.oracle.com/cd/B28359_01/server.111/b28286/statements_3001.htm#i2103956
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