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下面的代碼工作正常：錯誤1066：無法打開迭代器的別名〜ERROR
S4 = FOREACH S3 GENERATE group AS page_i,
COUNT(S2) AS outlinks,
FLATTEN(S2.rank);
DUMP S4
結果是象下面這樣：
(Computer engineering,1,0.1111111111111111)
(Outline of computer science,1,0.1111111111111111)
然而，當我嘗試創建一個多個表使用鴻溝：
S44 = FOREACH S4 GENERATE group as page_i, outlinks/2, ...
它去像袍：
Failed Jobs:
JobId Alias Feature Message Outputs
job_local125575051_0033 S6,S66 DISTINCT Message: Job failed! Error - NA
file:/tmp/temp-847036156/tmp-1908150009,
Input(s):
Successfully read records from: "/home/song/workspace/FinalProject/output/part-m-00000"
Successfully read records from: "/home/song/workspace/FinalProject/output/part-m-00000"
Output(s):
Failed to produce result in "file:/tmp/temp-847036156/tmp-1908150009"
Job DAG:
job_local777342816_0028 -> job_local39708124_0029,
job_local39708124_0029 -> job_local495952123_0030,job_local268178801_0032,
job_local495952123_0030 -> job_local1880869927_0031,
job_local1880869927_0031 -> job_local268178801_0032,
job_local268178801_0032 -> job_local125575051_0033,
job_local125575051_0033
2015-04-29 07:45:49,133 [main] INFO org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher - Some jobs have failed! Stop running all dependent jobs
2015-04-29 07:45:49,136 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR 1066: Unable to open iterator for alias S66
Details at logfile: /home/song/workspace/FinalProject/pig_1430315000370.log
爲了幫助他人回答你的問題，它有助於格式化代碼和輸出以清楚哪個是哪個。我試圖格式化它，但我可能犯了錯誤。你應該看看，確保它仍然是正確的。 – Cecilia
對於在尋找[錯誤1066：無法打開別名的迭代器]時發現此帖子的人（http://stackoverflow.com/questions/34495085/error-1066-unable-to-open-iterator-for-alias-在豬通用解決方案）這裏是[通用解決方案]（http://stackoverflow.com/a/34495086/983722）。 –