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SORT GROUP BY

Short Description

SORT GROUP BY is an aggregation step which allows values to be put in order and made unique where a unique index is not in use.

Detailed Description​

The step will be seen when the GROUP BY clause is used with aggregate functions such as AVG(), COUNT(), MAX(), MIN() and SUM(). Being an aggregation function, only a single row per group is returned and passed onto the next execution step.

Further Reading​

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