[ https://issues.apache.org/jira/browse/CASSANDRA-8576?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jonathan Ellis updated CASSANDRA-8576: -------------------------------------- Fix Version/s: (was: 2.1.x) 2.2.x Let's keep 2.1 for bug fixes and commit this to 2.2. Can I get a 2.2 patch from Alex? > Primary Key Pushdown For Hadoop > ------------------------------- > > Key: CASSANDRA-8576 > URL: https://issues.apache.org/jira/browse/CASSANDRA-8576 > Project: Cassandra > Issue Type: Improvement > Components: Hadoop > Reporter: Russell Alexander Spitzer > Assignee: Alex Liu > Fix For: 2.2.x > > Attachments: 8576-2.1-branch.txt, 8576-trunk.txt, > CASSANDRA-8576-v2-2.1-branch.txt, CASSANDRA-8576-v3-2.1-branch.txt > > > I've heard reports from several users that they would like to have predicate > pushdown functionality for hadoop (Hive in particular) based services. > Example usecase > Table with wide partitions, one per customer > Application team has HQL they would like to run on a single customer > Currently time to complete scales with number of customers since Input Format > can't pushdown primary key predicate > Current implementation requires a full table scan (since it can't recognize > that a single partition was specified) -- This message was sent by Atlassian JIRA (v6.3.4#6332)