[FEAT MERGE] support auto dop

src/sql/optimizer/ob_log_values.h

@@ -59,7 +59,16 @@ class ObLogValues : public ObLogicalOperator
       return ret;
     }
     int64_t get_col_count() const { return row_store_.get_col_count(); }
-
+    virtual int compute_op_parallel_and_server_info() override
+    {
+      int ret = common::OB_SUCCESS;
+      if (get_num_of_child() == 0) {
+        ret = set_parallel_and_server_info_for_match_all();
+      } else {
+        ret = ObLogicalOperator::compute_op_parallel_and_server_info();
+      }
+      return ret;
+    }
   private:
     ObLogPlan *explain_plan_;
     common::ObRowStore row_store_;