[CASSANDRA-10060] Reuse TemporalRow when updating multiple MaterializedViews

• Type: Improvement
• Status: Resolved
• Priority: Normal
• Resolution: Fixed
• Fix Version/s: 3.0 beta 2
• Component/s: Feature/Materialized Views, Legacy/Coordination
• Assignee: T Jake Luciani
• Reporter: T Jake Luciani

Authors

T Jake Luciani

Reviewers

Carl Yeksigian

• Created: 12/Aug/15 23:02
• Updated: 16/Apr/19 09:31
• Resolved: 24/Aug/15 17:51

Description

If a table has 5 associated MVs the current logic reads the existing row for the incoming mutation 5 times.

If we reuse the data from the first MV update we can cut out any further reads.

We know the existing data isn't changing because we are holding a lock on the partition.