[ https://issues.apache.org/jira/browse/SPARK-16026?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Michael Armbrust updated SPARK-16026: ------------------------------------- Target Version/s: 2.3.0 (was: 2.2.0) > Cost-based Optimizer framework > ------------------------------ > > Key: SPARK-16026 > URL: https://issues.apache.org/jira/browse/SPARK-16026 > Project: Spark > Issue Type: New Feature > Components: SQL > Reporter: Reynold Xin > Labels: releasenotes > Attachments: Spark_CBO_Design_Spec.pdf > > > This is an umbrella ticket to implement a cost-based optimizer framework > beyond broadcast join selection. This framework can be used to implement some > useful optimizations such as join reordering. > The design should discuss how to break the work down into multiple, smaller > logical units. For example, changes to statistics class, system catalog, cost > estimation/propagation in expressions, cost estimation/propagation in > operators can be done in decoupled pull requests. -- This message was sent by Atlassian JIRA (v6.3.15#6346) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org