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MongoDB MCQs

What can be done to optimize aggregation pipeline?

Place the $match as early in the aggregation pipeline as possible

Place the $match as the second argument in the aggregation pipeline and place first $group

Use $where in $match queries as part of the aggregation pipeline

Use $text in $match stage when $match is last argument in pipeline

Answer

Correct Answer: Place the $match as early in the aggregation pipeline as possible

Explanation:

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