-header of a tuple/bag
Mix Nin 2013-07-16, 18:04
I am trying query a data set on HDFS using PIG.
Data = LOAD '/user/xx/20130523/*;
x = FOREACH Data GENERATE cookie_id;
I get below error.
<line 2, column 26> Invalid field projection. Projected field [cookie_id]
does not exist
How do i find the column names in the bag "Data" . The developer who
created the file says, it is coookie_id.
Is there any way I could get schema/header for this?
Pradeep Gollakota 2013-07-16, 18:30