Why is a Where clause faster than a group filter or a format trigger?

Why is a Where clause faster than a group filter or a format
trigger?

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Why is a Where clause faster than a group filter or a format trigger?..

Answer / anil_abbireddy

Where clause filter's the data at the time of data fetching
or selecting from the database where as grop or format
trigger will work on the result set of fetched data

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