comphead commented on code in PR #16083:
URL: https://github.com/apache/datafusion/pull/16083#discussion_r2147425621
##########
datafusion/physical-plan/src/joins/symmetric_hash_join.rs:
##########
@@ -818,6 +822,20 @@ where
.collect();
(build_indices, probe_indices)
}
+ (JoinSide::Right, JoinType::RightMark) => {
+ let build_indices = (0..prune_length)
+ .map(L::Native::from_usize)
+ .collect::<PrimitiveArray<L>>();
+ let probe_indices = (0..prune_length)
+ .map(|idx| {
+ // For mark join we output a dummy index 0 to indicate the
row had a match
Review Comment:
that would be nice to show as an example, it is challenging to read
algorithms for upcoming contributors, but it can be done as follow up PR
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: github-unsubscr...@datafusion.apache.org
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: github-unsubscr...@datafusion.apache.org
For additional commands, e-mail: github-h...@datafusion.apache.org
