@Override
              public Object process(Node n, Stack<Node> s, NodeProcessorCtx c, Object... os) {
                MapJoinOperator mapJoinOp = (MapJoinOperator) n;
                if (mapJoinOp.getConf().isHybridHashJoin() && !(mapJoinOp.getConf().isDynamicPartitionHashJoin())) {
                  mapJoinOp.getConf().setHybridHashJoin(false);
                }
                return Boolean.TRUE;
              }
For any LLAP-related transformations which need to occur before vectorization.
ql/src/java/org/apache/hadoop/hive/ql/optimizer/physical/LlapPreVectorizationPass.java