Hi Cheng, Could you point me to the JIRA that introduced this change ?
Also, is this SPARK-2211 the right issue to follow for cost-based optimization? Thanks Raajay On Sun, Oct 11, 2015 at 7:57 PM, Cheng, Hao <hao.ch...@intel.com> wrote: > Spark SQL supports very basic join reordering optimization, based on the > raw table data size, this was added couple major releases back. > > > > And the “EXPLAIN EXTENDED query” command is a very informative tool to > verify whether the optimization taking effect. > > > > *From:* Raajay [mailto:raaja...@gmail.com] > *Sent:* Sunday, October 11, 2015 9:22 AM > *To:* user@spark.apache.org > *Subject:* Join Order Optimization > > > > Hello, > > Does Spark-SQL support join order optimization as of the 1.5.1 release ? > From the release notes, I did not see support for this feature, but figured > will ask the users-list to be sure. > > Thanks > > Raajay >
