Return the number of code points in it.
Return the number of code points in it.
This is only used by Substring() when start
is negative.
Update the UTF8String with Array[Byte], which should be encoded in UTF-8
Update the UTF8String with String.
Return a substring of this,
Return a substring of this,
the position of first code point
the position after last code point
:: DeveloperApi :: A UTF-8 String, as internal representation of StringType in SparkSQL
A String encoded in UTF-8 as an Array[Byte], which can be used for comparison, search, see http://en.wikipedia.org/wiki/UTF-8 for details.
Note: This is not designed for general use cases, should not be used outside SQL.