Thursday, July 23, 2009

pig on hadoop: count all rows 


pt = LOAD 'data'
B = GROUP pt ALL;             
C = FOREACH B GENERATE COUNT(pt);
DUMP C;
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1 comment:

  1. bOngoss & tOfitaJuly 23, 2013 at 5:41 AM

    it doesnt good if we have no rows (after a filter for expl).
    How can I have count(pt) = 0 ??
    Thank you

    ReplyDelete

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