[jira] [Commented] (HIVE-17830) dbnotification fails to work with rdbms other than postgres

["Daniel Dai (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-17830?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16295893#comment-16295893 ] 

Daniel Dai commented on HIVE-17830:
-----------------------------------

Created HIVE-18299 for continuation work.

> dbnotification fails to work with rdbms other than postgres
> -----------------------------------------------------------
>
>                 Key: HIVE-17830
>                 URL: https://issues.apache.org/jira/browse/HIVE-17830
>             Project: Hive
>          Issue Type: Bug
>          Components: HiveServer2
>            Reporter: anishek
>            Assignee: Daniel Dai
>            Priority: Critical
>             Fix For: 3.0.0
>
>         Attachments: HIVE-17830.0.patch, HIVE-17830.1.patch
>
>
> as part of HIVE-17721 we had changed the direct sql to acquire the lock for postgres as
> {code}
> select "NEXT_EVENT_ID" from "NOTIFICATION_SEQUENCE" for update;
> {code}
> however this breaks other databases and we have to use different sql statements for different databases 
> for postgres use
> {code}
> select "NEXT_EVENT_ID" from "NOTIFICATION_SEQUENCE" for update;
> {code}
> for SQLServer 
> {code}
> select "NEXT_EVENT_ID" from "NOTIFICATION_SEQUENCE" with (updlock);
> {code}
> for other databases 
> {code}
> select NEXT_EVENT_ID from NOTIFICATION_SEQUENCE for update;
> {code}



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