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	<title>udaf - 四号程序员</title>
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		<title>Writing Hive Custom Aggregate Functions (UDAF)</title>
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		<pubDate>Tue, 20 Jan 2015 04:00:31 +0000</pubDate>
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					<description><![CDATA[转载自：《Writing Hive Custom Aggregate Functions (UDAF): Part II》 Now that we got eclipse configured (see Part I) for UDAF development, its time to write our first UDAF. Searching for custom UDAF, most people might have already came across the followi[......] 继续阅读]]></description>
		
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