hadoop - How to pass to UDF entire relation? -


इस स्क्रिप्ट पर विचार करें: 

  रजिस्टर udf-1.0.0-BETA.jar A = लोड '1.txt' का प्रयोग PigStorage ('\ t') के रूप में (key1: chararray, val1: chararray); बी = लोड '2.txt' का प्रयोग PigStorage ('\ t') के रूप में (key2: chararray, val2: chararray); में शामिल हो गए = कुंजी 1 द्वारा, कुंजी 2 द्वारा बी; बाहर = FOREACH आम में शामिल हो com.example.UDF (); कूड़ा फेंके;   
 इसी तरह मेरे यूडीएफ को केवल चाबियाँ मिलें। यदि मैं यह कोशिश करता हूं:  
  बाहर = FOREACH आम में शामिल हो com.example.UDF (जुड़ा हुआ);   
 मुझे एक अपवाद मिला  एक कॉलम को उसके लिए एक संबंध से अनुमानित किया जाना चाहिए   
 मैं संपूर्ण इस तरह के संबंध  
  बाहर = FOREACH जून में शामिल हो com.example.UDF (ए :: कुंजी 1, ए :: वेल 1, बी :: कुंजी 2, बी :: वैल 2);   
 लेकिन यह वर्बोज़ के लिए है क्या कोई आसान तरीका है?   
 
 
 हां, निम्न प्रयास करें:  
  आउट = FOREACH आम में शामिल हो com.example.UDF (*);

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