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Differentiate between GROUP and COGROUP operators?

Question Posted / tejaswi anand


Differentiate between GROUP and COGROUP operators?..

Answer / Sameer Rai

The GROUP operator groups tuples based on a specified field or expression, while the COGROUP operator groups tuples together from multiple relations based on a common grouping field. The difference lies in the number of relations being operated on: GROUP operates on one relation, whereas COGROUP operates on two or more relations.

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