Dandandan commented on a change in pull request #9882:
URL: https://github.com/apache/arrow/pull/9882#discussion_r607572568
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File path: rust/datafusion/src/physical_plan/hash_join.rs
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@@ -86,6 +86,17 @@ pub struct HashJoinExec {
build_side: Arc<Mutex<Option<JoinLeftData>>>,
/// Shares the `RandomState` for the hashing algorithm
random_state: RandomState,
+ /// Partitioning mode to use
+ mode: PartitionMode,
+}
+
+#[derive(Clone, Copy, Debug, PartialEq)]
+/// Partitioning mode to use for hash join
+pub enum PartitionMode {
+ /// Left/right children are partitioned using the left and right keys
+ Partitioned,
+ /// Left side will be merged and collected into one partition
+ MergeLeft,
Review comment:
Done
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