[KUDU-2868] Support TTL in kudu

• Type: New Feature
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Labels: roadmap-candidate
• Assignee: Unassigned
• Reporter: ZhangYao
• Created: 18/Jun/19 12:55
• Updated: 01/Jun/20 16:12

Description

In development scenario we usually want to use TTL feature to discard rows that have not been updated for a while and kudu do not support that yet. Currently kudu may can use range partition to drop partition out of date to handle TTL style case but this can not completely cover our needs. Drop partition can not handle partial updates such as when out of date partition contains rows been updated recently it can't be dropped. Those long-term non-updated rows are not needed but still occupying storage space. It's meaningful for kudu to support row level TTL.

Issue Links

• is related to: KUDU-1431 Optimize History GC for Compliance Oriented Use Cases

Sub-Tasks

• Implement DEFAULT CURRENT_TIMESTAMP and ON UPDATE CURRENT_TIMESTAMP for kudu: Open