pig cogroup outer - Wikitechy

pig cogroup outer - Wikitechy https://www.wikitechy.com/interview-questions/tag/pig-cogroup-outer/ Interview Questions Tue, 14 Sep 2021 11:26:23 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 https://www.wikitechy.com/interview-questions/wp-content/uploads/2025/10/cropped-wikitechy-icon-32x32.png pig cogroup outer - Wikitechy https://www.wikitechy.com/interview-questions/tag/pig-cogroup-outer/ 32 32 What is the difference between group and cogroup in Pig Latin ? https://www.wikitechy.com/interview-questions/apache-pig/what-is-the-difference-between-group-and-cogroup-in-pig-latin/ https://www.wikitechy.com/interview-questions/apache-pig/what-is-the-difference-between-group-and-cogroup-in-pig-latin/#respond Mon, 12 Jul 2021 08:13:18 +0000 https://www.wikitechy.com/interview-questions/?p=201

Difference between group and cogroup in Pig Latin

Group	Cogroup
For readability GROUP is used in statements involving one relation	Cogroup used as a statements involving two or more relations. Cogroup should no exceed 127 relations at a time.
The group statement collects together records with the same key	cogroup is a general statement of group. Instead of collecting records of 1 input it collects records of N inputs based on a key
Syntax: grunt> Group_data = GROUP Relation_name BY age;	Syntax: alias = CROSS alias, alias [, alias …] [PARTITION BY partitioner] [PARALLEL n];

]]> https://www.wikitechy.com/interview-questions/apache-pig/what-is-the-difference-between-group-and-cogroup-in-pig-latin/feed/ 0