None of pig operations other than ORDER BY (and ORDER BY followed by LIMIT) make any order guarantees.
From: Todd Lee [mailto:[EMAIL PROTECTED]]
Sent: Monday, January 17, 2011 2:14 PM
To: [EMAIL PROTECTED]
Subject: Is GROUP order-preserving?
Is GROUP order-preserving? It is not mentioned in the Pig Latin doc while it
does mention that UNION is not.