Explain EXPLAIN SYNTAX (children 1)
 CreateQuery t (children 3)
  Identifier t
  Columns definition (children 1)
   ExpressionList (children 1)
    ColumnDeclaration x (children 2)
     DataType varchar (children 1)
      ExpressionList (children 1)
       Literal UInt64_255
     Collation
  Storage definition (children 1)
   Function Memory