-Re: Efficient load for data with large number of columns
MARCOS MEDRADO RUBINELLI 2013-03-27, 14:16
suppose my data has 100 columns or fields, and i want to impose a schema.
is there a way i can create a separate file describing the schema of these
fields, and let PIG read the schema from that file?
Yes, if you put a json file named " .pig_schema" in the same directory as your data, Pig will use it to determine the schema: