CODEWITHSUNDEEP
hadoopapache-pig
user3836231
user3836231

Reputation: 3

How to count on two columns of group by items in pig

I have generated two columns(origin and destination) out of 'n' number of columns. Now I want to generate count for these two columns combination. I am not able to get the result. I am getting error as, ERROR 1070: Could not resolve Count using imports: Below is my script, 

mydata = load '/Projects/Flightdata/1987/Rawdata' using PigStorage(',') as (year:int, month:int, dom:int, dow:int, deptime:long, crsdeptime:long, arrtime:long, crsarrtime:long, uniqcarcode:chararray, flightnum:long, tailnum:chararray, actelaptime:long, crselaptime:long, airtime:long, arrdeltime:long, depdeltime:long, origcode:chararray, destcode:chararray, dist:long, taxintime:long, taxiouttime:long, flightcancl:int, canclcode:chararray, diverted:int, carrierdel:long, weatherdel:long, nasdel:long, securitydel:long, lateaircraftdel:long);

Step2 = foreach mydata generate origcode, destcode;
grpby = group Step2 by (origcode, destcode) ;
step3 = foreach grpby generate group.origcode as source,  group.destcode as destination, Count(step2);

here I want to generate count for each combination of origin and destination. Any guidance will be helpful.

Upvotes: 0

Views: 1069

Answers (1)

Frederic
Frederic

Reputation: 3284

Please see the Pig documentation about case sensitivity

The names of Pig Latin functions are case sensitive.

Upvotes: 1

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