Sushanth Sowmyan created HIVE-10562:
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Summary: Add version column to NOTIFICATION_LOG table and
DbNotificationListener
Key: HIVE-10562
URL: https://issues.apache.org/jira/browse/HIVE-10562
Project: Hive
Issue Type: Sub-task
Affects Versions: 1.2.0
Reporter: Sushanth Sowmyan
Currently, we have a JSON encoded message being stored in the NOTIFICATION_LOG
table.
If we want to be future proof, we need to allow for versioning of this message,
since we might change what gets stored in the message. A prime example of what
we'd want to change is as in HIVE-10393.
MessageFactory already has stubs to allow for versioning of messages, and we
could expand on this further in the future. NotificationListener currently
encodes the message version into the header for the JMS message it sends, which
seems to be the right place for a message version (instead of being contained
in the message, for eg.).
So, we should have a similar ability for DbEventListener as well, and the place
this makes the most sense is to and add a version column to the
NOTIFICATION_LOG table.
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