SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 4)
    Literal NULL (alias offset)
    Literal \'Hello\' (alias s)
    Function substring (children 1)
     ExpressionList (children 2)
      Function bin (children 1)
       ExpressionList (children 1)
        Identifier s
      Identifier offset
    Function bin (children 1)
     ExpressionList (children 1)
      Function bitSlice (children 1)
       ExpressionList (children 2)
        Identifier s
        Identifier offset
