By default sort merge join is preferred over shuffle hash join, that's why we haven't spend resources to implement codegen for it.
On Sun, Nov 10, 2019 at 3:15 PM Wang, Gang <gwa...@ebay.com.invalid> wrote: > There are some cases, shuffle hash join performs even better than sort > merge join. > > While, I noticed that ShuffledHashJoinExec does not implement > CodegenSupport, is there any concern? And if there is any chance to improve > the performance of ShuffledHashJoinExec? > > >
