message: has_null still needs to be an atomic
diff: @@ -153,7 +153,7 @@ public:
  //! Materialized join condition of the RHS
  ColumnDataCollection right_condition_data;
  //! Whether or not the RHS of the nested loop join has NULL values
  - bool has_null;
  + atomic<bool> has_null;
  //! A bool indicating for each tuple in the RHS if they found a match (only used in FULL OUTER JOIN)
  OuterJoinMarker right_outer;
  };
  