[
https://issues.apache.org/jira/browse/CASSANDRA-9843?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jonathan Ellis updated CASSANDRA-9843:
--------------------------------------
Labels: performance (was: )
> Augment or replace partition index with adaptive range filters
> --------------------------------------------------------------
>
> Key: CASSANDRA-9843
> URL: https://issues.apache.org/jira/browse/CASSANDRA-9843
> Project: Cassandra
> Issue Type: New Feature
> Components: Core
> Reporter: Jonathan Ellis
> Assignee: T Jake Luciani
> Labels: performance
>
> Adaptive range filters are, in principle, bloom filters for range queries.
> They provide a space-efficient way to avoid scanning a partition when we can
> tell that we do not contain any data for the range requested. Like BF, they
> can return false positives but not false negatives.
> The implementation is of course totally different from BF. ARF is a tree
> where each leaf of the tree is a range of data and a bit, either on or off,
> denoting whether we have *some* data in that range.
> ARF are described here: http://www.vldb.org/pvldb/vol6/p1714-kossmann.pdf
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
