[jira] [Updated] (SPARK-16026) Cost-based optimizer framework

["Reynold Xin (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-16026?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Reynold Xin updated SPARK-16026:
--------------------------------
    Description: 
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.

  was:
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.



> 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
>
> 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
(v6.3.4#6332)

---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org