Java side HashJoin is converted as BroadcastJoinExec at native side

[xumingming]

auron/native-engine/auron-serde/src/from_proto.rs

Lines 187 to 223 in a0952ec

	PhysicalPlanType::HashJoin(hash_join) => {
	let schema = Arc::new(convert_required!(hash_join.schema)?);
	let left: Arc<dyn ExecutionPlan> = convert_box_required!(hash_join.left)?;
	let right: Arc<dyn ExecutionPlan> = convert_box_required!(hash_join.right)?;
	let on: Vec<(PhysicalExprRef, PhysicalExprRef)> = hash_join
	.on
	.iter()
	.map(|col| {
	let left_key =
	try_parse_physical_expr(&col.left.as_ref().unwrap(), &left.schema())?;
	let right_key =
	try_parse_physical_expr(&col.right.as_ref().unwrap(), &right.schema())?;
	Ok((left_key, right_key))
	})
	.collect::<Result<_, Self::Error>>()?;
	let join_type =
	protobuf::JoinType::try_from(hash_join.join_type).expect("invalid JoinType");
	let build_side =
	protobuf::JoinSide::try_from(hash_join.build_side).expect("invalid BuildSide");
	Ok(Arc::new(BroadcastJoinExec::try_new(
	schema,
	left,
	right,
	on,
	join_type
	.try_into()
	.map_err(|_| proto_error("invalid JoinType"))?,
	build_side
	.try_into()
	.map_err(|_| proto_error("invalid BuildSide"))?,
	false,
	None,
	)?))
	}

Seems like a bug?