AWS documentdb documentation change
Summary
Entire documentation page for the $addToSet aggregation operator has been removed, including examples and code snippets.
Security assessment
The change removes general documentation about a MongoDB aggregation operator without any mention of security vulnerabilities, fixes, or security-related content. This appears to be a routine documentation removal or restructuring, possibly due to deprecation or content reorganization.
Diff
diff --git a/documentdb/latest/developerguide/addToSet-aggregation.md b/documentdb/latest/developerguide/addToSet-aggregation.md index c859a9d25..8b1378917 100644 --- a//documentdb/latest/developerguide/addToSet-aggregation.md +++ b//documentdb/latest/developerguide/addToSet-aggregation.md @@ -1 +0,0 @@ -[](/pdfs/documentdb/latest/developerguide/developerguide.pdf#addToSet-aggregation "Open PDF") @@ -3,126 +1,0 @@ -[Documentation](/index.html)[Amazon DocumentDB](/documentdb/index.html)[Developer Guide](what-is.html) - -Example (MongoDB Shell)Code examples - -# $addToSet - -The `$addToSet` aggregation operator returns an array of unique values from a specified expression for each group. It is used within the `$group` stage to accumulate distinct values, automatically eliminating duplicates. - -**Parameters** - - * `expression`: The expression to evaluate for each document in the group. - - - - -## Example (MongoDB Shell) - -The following example demonstrates using the `$addToSet` operator to collect unique cities where orders were placed for each customer. - -**Create sample documents** - - - db.orders.insertMany([ - { _id: 1, customer: "Alice", city: "Seattle", amount: 100 }, - { _id: 2, customer: "Alice", city: "Portland", amount: 150 }, - { _id: 3, customer: "Bob", city: "Seattle", amount: 200 }, - { _id: 4, customer: "Alice", city: "Seattle", amount: 75 }, - { _id: 5, customer: "Bob", city: "Boston", amount: 300 } - ]); - -**Query example** - - - db.orders.aggregate([ - { - $group: { - _id: "$customer", - cities: { $addToSet: "$city" } - } - } - ]); - -**Output** - - - [ - { _id: 'Bob', cities: [ 'Seattle', 'Boston' ] }, - { _id: 'Alice', cities: [ 'Seattle', 'Portland' ] } - ] - -## Code examples - -To view a code example for using the `$addToSet` aggregation operator, choose the tab for the language that you want to use: - -Node.js - - - - const { MongoClient } = require('mongodb'); - - async function example() { - const client = await MongoClient.connect('mongodb://<username>:<password>@<cluster-endpoint>:27017/?tls=true&tlsCAFile=global-bundle.pem&replicaSet=rs0&readPreference=secondaryPreferred&retryWrites=false'); - const db = client.db('test'); - const collection = db.collection('orders'); - - const result = await collection.aggregate([ - { - $group: { - _id: "$customer", - cities: { $addToSet: "$city" } - } - } - ]).toArray(); - - console.log(result); - await client.close(); - } - - example(); - -Python - - - - from pymongo import MongoClient - - def example(): - client = MongoClient('mongodb://<username>:<password>@<cluster-endpoint>:27017/?tls=true&tlsCAFile=global-bundle.pem&replicaSet=rs0&readPreference=secondaryPreferred&retryWrites=false') - db = client['test'] - collection = db['orders'] - - result = list(collection.aggregate([ - { - '$group': { - '_id': '$customer', - 'cities': { '$addToSet': '$city' } - } - } - ])) - - print(result) - client.close() - - example() - - **Javascript is disabled or is unavailable in your browser.** - -To use the Amazon Web Services Documentation, Javascript must be enabled. Please refer to your browser's Help pages for instructions. - -[Document Conventions](/general/latest/gr/docconventions.html) - -$add - -$addFields - -Did this page help you? - Yes - -Thanks for letting us know we're doing a good job! - -If you've got a moment, please tell us what we did right so we can do more of it. - -Did this page help you? - No - -Thanks for letting us know this page needs work. We're sorry we let you down. - -If you've got a moment, please tell us how we can make the documentation better.