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Showing posts with the label Aggregation Framework
Is It Possible To Use Query Projection On The Same Collection That Has A $elemmatch Projection?

Is It Possible To Use Query Projection On The Same Collection That Has A $elemmatch Projection?

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I understand that you can limit the items in a subcollection array using $elemMatch as a projection… Read more Is It Possible To Use Query Projection On The Same Collection That Has A $elemmatch Projection?
How To Return The Variant Values Of Each Product If That Product Is A Variant?

How To Return The Variant Values Of Each Product If That Product Is A Variant?

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I have a database in MongoDB like this {'productId' : 1, 'isVariant': 1, 'varia… Read more How To Return The Variant Values Of Each Product If That Product Is A Variant?
$filter Upto 3 Nested Level In Mongodb

$filter Upto 3 Nested Level In Mongodb

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I have a below collection [ { 'Array1': [ { 'Array2': [ … Read more $filter Upto 3 Nested Level In Mongodb
Collect Distinct Field Names At Nested Level With Specific Condition

Collect Distinct Field Names At Nested Level With Specific Condition

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I have problem statement, in which i need all the field names at child level of 'config.first.… Read more Collect Distinct Field Names At Nested Level With Specific Condition
Mongodb - Unwinding Nested Subdocuments

Mongodb - Unwinding Nested Subdocuments

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For the following dataset example: lists { _id: 1, included_lists: [ 2 ], items: [ 'i1' ]} … Read more Mongodb - Unwinding Nested Subdocuments