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courses:mapreduce-tutorial:step-5 [2012/01/31 09:40]
straka Change Perl commandline syntax.
courses:mapreduce-tutorial:step-5 [2012/01/31 15:56] (current)
straka
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 ===== Types of keys and values ===== ===== Types of keys and values =====
  
-Currently in the Perl API, the keys and values are both strings, which are stored and loaded using UTF-8 format. If you need more complex structures, you have to serialize and deserialize them by yourselves.+Currently in the Perl API, the keys and values are both strings, which are stored and loaded using UTF-8 format ​and compared lexicographically. If you need more complex structures, you have to serialize and deserialize them by yourselves.
  
 The Java API offers a wide range of types, including user-defined types, to be used for keys and values. The Java API offers a wide range of types, including user-defined types, to be used for keys and values.

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