SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 6)
    Function toDate (children 1)
     ExpressionList (children 1)
      Literal \'2020-01-01\'
    Function byteSize (children 1)
     ExpressionList (children 1)
      Function toDate (children 1)
       ExpressionList (children 1)
        Literal \'2020-01-01\'
    Function toDateTime (children 1)
     ExpressionList (children 1)
      Literal \'2020-01-01 01:02:03\'
    Function byteSize (children 1)
     ExpressionList (children 1)
      Function toDateTime (children 1)
       ExpressionList (children 1)
        Literal \'2020-01-01 01:02:03\'
    Function toDateTime64 (children 1)
     ExpressionList (children 2)
      Literal \'2020-01-01 01:02:03\'
      Literal UInt64_3
    Function byteSize (children 1)
     ExpressionList (children 1)
      Function toDateTime64 (children 1)
       ExpressionList (children 2)
        Literal \'2020-01-01 01:02:03\'
        Literal UInt64_3
