I will try this, it seems to be what I was looking for.
Thanks !
Le 20/04/11 18:12, Sven Krasser a écrit :
Sounds like the "Nested Projection" example in
http://pig.apache.org/docs/r0.8.0/piglatin_ref2.html#FOREACH is what you're
looking for.
-Sven
On Wed, Apr 20, 2011 at 7:07 AM, Vincent Barat<[email protected]>wrote:
Hi,
First, I group 2 tables using a key (named sid):
rich_sessions = GROUP sessions BY sid, activities BY sid;
After this operation, all the tuples in the bag "activities" start with the
same "sid" field.
This field is long (64 bytes) and I would like to remove it from all
activity tuples in order to save space before storing this rich_sessions in
a file.
Is there any way to do this ?
Thank for your help,
--
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