AWS documentdb documentation change
Summary
Removed entire documentation page for the $unwind operator in Amazon DocumentDB, including all examples, parameters, and code samples
Security assessment
This change removes documentation content entirely but does not indicate any security vulnerability, patch, or security-related update. It appears to be a routine documentation cleanup or restructuring, possibly moving content to a different location. No security implications are evident from the removal of this operator documentation.
Diff
diff --git a/documentdb/latest/developerguide/unwind.md b/documentdb/latest/developerguide/unwind.md index ed781e853..8b1378917 100644 --- a//documentdb/latest/developerguide/unwind.md +++ b//documentdb/latest/developerguide/unwind.md @@ -1 +0,0 @@ -[](/pdfs/documentdb/latest/developerguide/developerguide.pdf#unwind "Open PDF") @@ -3,116 +1,0 @@ -[Documentation](/index.html)[Amazon DocumentDB](/documentdb/index.html)[Developer Guide](what-is.html) - -Example (MongoDB Shell)Code examples - -# $unwind - -The `$unwind` operator is used to deconstruct an array field from the input documents to output a document for each element. This can be useful when you want to perform operations on the individual elements of an array, such as filtering, sorting, or transforming the data. - -**Parameters** - - * `path`: The path to the array field to be unwound. - - * `includeArrayIndex`: (optional) Specifies the name of the new field to hold the index of the array element. - - * `preserveNullAndEmptyArrays`: (optional) Determines whether the operation keeps the original document when the array field is null or an empty array. - - - - -## Example (MongoDB Shell) - -The following example demonstrates how to use the `$unwind` operator to deconstruct an array field and perform further operations on the individual elements. - -**Create sample documents** - - - db.people.insertMany([ - { _id: 1, name: "jon", hobbies: ["painting", "dancing", "singing"] }, - { _id: 2, name: "jane", hobbies: ["reading", "swimming"] }, - { _id: 3, name: "jack", hobbies: [] } - ]) - -**Query example** - - - db.people.aggregate([ - { $unwind: "$hobbies" } - ]) - -**Output** - - - [ - { _id: 1, name: 'jon', hobbies: 'painting' }, - { _id: 1, name: 'jon', hobbies: 'dancing' }, - { _id: 1, name: 'jon', hobbies: 'singing' }, - { _id: 2, name: 'jane', hobbies: 'reading' }, - { _id: 2, name: 'jane', hobbies: 'swimming' } - ] - -## Code examples - -To view a code example for using the `$unwind` command, 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('people'); - - const result = await collection.aggregate([ - { $unwind: '$hobbies' } - ]).toArray(); - - console.log(result); - 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['people'] - - result = list(collection.aggregate([ - { '$unwind': '$hobbies' } - ])) - - 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) - -$unset - -$vectorSearch - -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.