SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 7)
    Function toDecimal64 (alias x) (children 1)
     ExpressionList (children 2)
      Literal Float64_12345.6789
      Literal UInt64_4
    Function round (children 1)
     ExpressionList (children 1)
      Identifier x
    Function round (children 1)
     ExpressionList (children 2)
      Identifier x
      Literal UInt64_1
    Function round (children 1)
     ExpressionList (children 2)
      Identifier x
      Literal UInt64_2
    Function round (children 1)
     ExpressionList (children 2)
      Identifier x
      Literal UInt64_3
    Function round (children 1)
     ExpressionList (children 2)
      Identifier x
      Literal UInt64_4
    Function round (children 1)
     ExpressionList (children 2)
      Identifier x
      Literal UInt64_5