let me check it out^_^ 2017-06-21 0:25 GMT+08:00 Jim Apple <jbap...@cloudera.com>:
> THis looks like the closest ticket to the question: > > https://issues.apache.org/jira/browse/IMPALA-2416 > > Feel free to file another, more ambitious, ticket if you'd like. > > On Tue, Jun 20, 2017 at 4:10 AM, 吴朱华 <ikew...@gmail.com> wrote: > > Hi guys: > > > > Is there a plan to implement the histogram support for computing column > > stats? Base on my assumption, if the histogram support implements, it > will > > easily and more accurate to predict the join involved row numbers, and > > which will make a better decision for choosing the shuffle or the > broadcast. > > Above all is all my amateur thoughts, I love to hear your feedbacks^_^ >
