SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function tuple (children 1)
     ExpressionList (children 2)
      Function sum (children 1)
       ExpressionList (children 1)
        Function minus (children 1)
         ExpressionList (children 2)
          Function toDecimal64 (children 1)
           ExpressionList (children 2)
            Literal Float64_2.11
            Literal UInt64_15
          Identifier number
      Literal UInt64_1
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function numbers (children 1)
       ExpressionList (children 1)
        Literal UInt64_2
