Benedict created CASSANDRA-9471: ----------------------------------- Summary: Columns should be backed by a BTree, not an array Key: CASSANDRA-9471 URL: https://issues.apache.org/jira/browse/CASSANDRA-9471 Project: Cassandra Issue Type: Improvement Components: Core Reporter: Benedict Assignee: Benedict Fix For: 3.0 beta 1
Follow up to 8099. We have pretty terrible lookup performance as the number of columns grows (linear). In at least one location, this results in quadratic performance. We don't however want this structure to be either any more expensive to build, nor to store. Some small modifications to BTree will permit it to serve here, by permitting efficient lookup by index, and calculation _of_ index for a given key. -- This message was sent by Atlassian JIRA (v6.3.4#6332)