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New posts in aggregation-framework

$group needs an array for _id but $out won't handle it

mongodb date aggregation operators timezone adjustments with php

Grouping nearest locations in Mongodb

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How to get aggregated sum of values in an array of mongoose subdocuments when query parent?

MongoDB aggregation: average sales per hour

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Sort results by array size

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How do I compose a date range query in Mongodb's aggregation framework?

Recursive Nested Arrays - Applying query to multiple array

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