SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 6)
    Function toDecimal128 (alias x) (children 1)
     ExpressionList (children 2)
      Literal \'12345678901234567890123456789.123456789\'
      Literal UInt64_9
    Function negate (alias y) (children 1)
     ExpressionList (children 1)
      Identifier x
    Function floor (children 1)
     ExpressionList (children 1)
      Identifier x
    Function floor (children 1)
     ExpressionList (children 1)
      Identifier y
    Function floor (children 1)
     ExpressionList (children 2)
      Identifier x
      Literal UInt64_3
    Function floor (children 1)
     ExpressionList (children 2)
      Identifier y
      Literal UInt64_3