Hi, I think if you could split this task to subtasks, it can be done faster in parallel. If so, can you assign me please?
Thanks Best Regards... On Mon, Apr 1, 2013 at 10:37 PM, Hyunsik Choi (JIRA) <[email protected]>wrote: > > [ > https://issues.apache.org/jira/browse/TAJO-24?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel] > > Hyunsik Choi updated TAJO-24: > ----------------------------- > > Attachment: Cost-based_Optimizer_130401.pdf > > > Cost-based Optimizer for Tajo > > ----------------------------- > > > > Key: TAJO-24 > > URL: https://issues.apache.org/jira/browse/TAJO-24 > > Project: Tajo > > Issue Type: New Feature > > Components: optimizer > > Reporter: Hyunsik Choi > > Assignee: Hyunsik Choi > > Attachments: Cost-based_Optimizer_130401.pdf > > > > > > The current query optimizer is too simple and is not extensible. In > addition, it does not support scalar and table subqueries. > > So, I would like to propose the implementation of new optimizer which is > extensible and is based on some cost model. > > In my opinion, this work is not trivial and will take a very long time. > Also, we will have many discussions on this issue. This is the first draft, > and I would like to continue to improve the requirements and details. > > -- > This message is automatically generated by JIRA. > If you think it was sent incorrectly, please contact your JIRA > administrators > For more information on JIRA, see: http://www.atlassian.com/software/jira > -- *BURAK ISIKLI** *| *http://burakisikli.wordpress.com* * *
