How to get query output as nested document using aggregation stages

Hi All, I am trying to write a query for nested documents but am not able to get the desired output. If someone can guide me it will be very ...

MongoDB aggregation query - return all items inside nested ...

I was able to come up with this query to get the desired result db.collection.aggregate([ { "$unwind": "$types.

Aggregation Stages - MongoDB Manual v8.0

... documents with a custom update pipeline) the results into an output ... Specify a document embedded in the input document to promote the embedded document to the ...

MongoDB Aggregation: tutorial with examples and exercises

Aggregation is a way of processing a large number of documents in a collection by means of passing them through different stages. The stages make up what is ...

Aggregation with nested array of documents conditional help - Reddit

The output data would be the same thing except the last document would have assignments.dueDate with a new date. [{ _id: 123, assignments ...

MongoDB $lookup on nested document - Stack Overflow

... with $unwind and $project in aggregation framework ... to see how it works - try removing aggregation stages from query and check document ...

A MongoDB Aggregation Example with $match, $group & $sort

By clicking on Run under Stage 1: Output and clicking on Count Documents, we can see that 89 documents have a value of Senior for the field ...

MongoDB aggregation framework stages and pipelining

For instance, you may want to fetch some embedded documents in a given field but the find operation will always fetch the main document and then it will be upon ...

How To Use Aggregations in MongoDB - DigitalOcean

To obtain these results, MongoDB first passed the document collection through the $match stage, filtered the documents against the query ...

Fetching Nested MongoDB Subdocuments in Golang using the mgo ...

As you can see, the result set consists of only the data for items that matched the criteria, and nothing else. The query used here utilizes an ...

How to get the last nested object of all documents then perform sub ...

I have an index called socialmedia and trying to create queries with this field called eng (omitted some unnecessary fields) "id" : "1", ...

How to convert query output to nested JSON? | OutSystems

I'm currently building an API where the requirement is to retrieve a list (nested structure) in JSON format based on the data existing in an external database.

MongoDB aggregation framework - group with the sum of the nested ...

MongoDB Aggregation Framework Query: $group, $project, $addFields with $reduce and sum. Use Case: I have the multiple documents with nested ...

Query Nested Objects in MongoDB - Spark By {Examples}

To query a field in the nested object in MongoDB use the find() method by referring to the nested field using the dot notation.

Aggregations on nested objects - Elasticsearch - Elastic Discuss

Is it possible to get this information with my current document ... I tried this but I get strange results back. My query is in PHP but the ...

Aggregation builder - Doctrine MongoDB Object Document Mapper ...

Query result documents can use all features regular documents ... use discriminators to get different result documents according to the aggregation result.

Mongoose v8.8.2: Aggregate

... have keys already prefixed with a "-" aggregate.project({a: 1, b: 1 ... options «Object» to $unionWith query as described in the above link. Returns ...

MongoDB Aggregation Framework - Working With Arrays

The aggregation query has the syntax db.collection.aggregate( [ pipeline stage1, stage 2, ..., stage n ] ) , and usually returns document(s) as ...

Aggregation pipeline stages - MongoDB ODM - Doctrine

Categorizes incoming documents into groups, called buckets, based on a specified expression and bucket boundaries. Each bucket is represented as a document in ...

Aggregation and Filtering - Factors Influencing NoSQL Adoption

In many use cases, we will need a way to aggregate values across multiple documents, compute some operations on the aggregated values and then return results.