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Posted to dev@hive.apache.org by "anishek (JIRA)" <ji...@apache.org> on 2017/10/18 08:43:00 UTC

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

anishek created HIVE-17830:
------------------------------

             Summary: 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: anishek
            Priority: Critical
             Fix For: 3.0.0


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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