Pig Cross Operator
The CROSS operator computes the cross-product of two or more relations.
Syntax
grunt> Relation3_name = CROSS Relation1_name, Relation2_name;
Example
grunt> customers = LOAD 'hdfs://localhost:9000/pig_data/customers.txt' USING PigStorage(',')
as (id:int, name:chararray, age:int, address:chararray, salary:int);
grunt> orders = LOAD 'hdfs://localhost:9000/pig_data/orders.txt' USING PigStorage(',')
as (oid:int, date:chararray, customer_id:int, amount:int);
grunt> cross_data = CROSS customers, orders;
grunt> Dump cross_data;