在pig中, dump和store会分别完成两个MR,不会一起进行 1:加载名用正则表达式: LOAD'/user/wizad/data/wizad/raw/2014-0{6,7-0,7-1,7-2,7-3,8}*/3_1/adwords*' 或者定义引用:%default cleanedLog/user/wizad/data/wizad/cleaned/2014-11-{0[3-9],1[0-8]}/*/part*正确, 而%default cleanedLog/user/wizad/data