SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 4)
    Function toUInt8OrDefault (children 1)
     ExpressionList (children 2)
      Literal \'123\'
      Literal UInt64_10
    Function toUInt8OrDefault (children 1)
     ExpressionList (children 2)
      Literal \'-123\'
      Literal UInt64_10
    Function toUInt8OrDefault (children 1)
     ExpressionList (children 2)
      Literal \'1234\'
      Literal UInt64_10
    Function toUInt8OrDefault (children 1)
     ExpressionList (children 2)
      Literal \' 123\'
      Literal UInt64_10
