anchor.diff:  * 16-bit signed integer
   * 32-bit signed integer
   * 64-bit signed integer
  +* date (32-bit days since the Unix epoch)
   * unixtime_micros (64-bit microseconds since the Unix epoch)
   * single-precision (32-bit) IEEE-754 floating-point number
   * double-precision (64-bit) IEEE-754 floating-point number
   * decimal (see <<decimal>> for details)
  +* varchar (see <<varchar>> for details)
   * UTF-8 encoded string (up to 64KB uncompressed)
   * binary (up to 64KB uncompressed)
  -* VARCHAR type with configurable maximum length (up to 64KB uncompressed)
   
   Kudu takes advantage of strongly-typed columns and a columnar on-disk storage
   format to provide efficient encoding and serialization. To make the most of
  
positive.code: [[no_version_column]]
  [IMPORTANT]
  .No Version or Timestamp Column
  Unlike HBase, Kudu does not provide a version or timestamp column to track changes
  to a row. If version or timestamp information is needed, the schema should include
  an explicit version or timestamp column.
  
  [[decimal]]
  === Decimal Type
  
negative.code: NOTE: The precision and scale of `decimal` columns cannot be changed by altering
  the table.
  
  [[varchar]]
  === Varchar Type
  
  The `varchar` type is a UTF-8 encoded string (up to 64KB uncompressed) with a
  fixed maximum character length. This type is especially useful when migrating
  from or integrating with legacy systems that support the `varchar` type.
  If a maximum character length is not required the `string` type should be
  used instead.
  
  The `varchar` type is a parameterized type that takes a length attribute.
  
  *Length* represents the maximum number of UTF-8 characters allowed. Values
  with characters greater than the limit will be truncated. This value must
  be between 1 and 65535 and has no default. Note that some other systems
  may represent the length limit in bytes instead of characters. That means
  that Kudu may be able to represent longer values in the case of multi-byte
  UTF-8 characters.
  
  [[encoding]]
  === Column Encoding
  
  