mingmwang commented on code in PR #4219:
URL: https://github.com/apache/arrow-datafusion/pull/4219#discussion_r1023841101
##########
datafusion/core/src/physical_plan/planner.rs:
##########
@@ -932,15 +933,41 @@ impl DefaultPhysicalPlanner {
if session_state.config.target_partitions > 1
&& session_state.config.repartition_joins
+ && !session_state.config.prefer_hash_join
{
- // Use hash partition by default to parallelize hash
joins
+ // Use SortMergeJoin if hash join is not preferred
+ // Sort-Merge join support currently is experimental
+ if join_filter.is_some() {
+ // TODO SortMergeJoinExec need to support join
filter
+ Err(DataFusionError::Plan("SortMergeJoinExec does
not support join_filter now.".to_string()))
Review Comment:
Sure, will do.
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