SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 2)
    Function least (children 1)
     ExpressionList (children 2)
      Function toUInt32 (children 1)
       ExpressionList (children 1)
        Literal UInt64_0
      Function toInt256 (children 1)
       ExpressionList (children 1)
        Literal UInt64_0
    Function greatest (children 1)
     ExpressionList (children 2)
      Function toInt32 (children 1)
       ExpressionList (children 1)
        Literal UInt64_0
      Function toUInt256 (children 1)
       ExpressionList (children 1)
        Literal UInt64_0
