SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 7)
    Literal \'floor()        : \'
    Function toDecimal128 (alias x) (children 1)
     ExpressionList (children 2)
      Literal \'1234567890.123456789\'
      Literal UInt64_20
    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 Int64_-3
    Function floor (children 1)
     ExpressionList (children 2)
      Identifier y
      Literal Int64_-3