AWS documentdb documentation change
Summary
Entire documentation page for the $meta aggregation operator has been removed, including examples in MongoDB shell, Node.js, and Python.
Security assessment
The change removes documentation content entirely but does not indicate any security vulnerability, weakness, or incident. This appears to be a documentation restructuring or removal of outdated content rather than a security-related update. No security implications are evident from the removal of this aggregation operator documentation.
Diff
diff --git a/documentdb/latest/developerguide/meta-aggregation.md b/documentdb/latest/developerguide/meta-aggregation.md index 52b0aebeb..8b1378917 100644 --- a//documentdb/latest/developerguide/meta-aggregation.md +++ b//documentdb/latest/developerguide/meta-aggregation.md @@ -1 +0,0 @@ -[](/pdfs/documentdb/latest/developerguide/developerguide.pdf#meta-aggregation "Open PDF") @@ -3,127 +1,0 @@ -[Documentation](/index.html)[Amazon DocumentDB](/documentdb/index.html)[Developer Guide](what-is.html) - -Example (MongoDB Shell)Code examples - -# $meta - -The `$meta` aggregation operator accesses metadata associated with documents in an aggregation pipeline. It is commonly used to retrieve text search scores and sort results by relevance. - -**Parameters** - - * `textScore`: Retrieves the text search score indicating document relevance to the search query. - - - - -## Example (MongoDB Shell) - -The following example demonstrates using the `$meta` operator in an aggregation pipeline to retrieve and sort by text search scores. - -**Create sample documents** - - - db.articles.createIndex({ content: "text" }); - - db.articles.insertMany([ - { _id: 1, title: "Python Programming", content: "Python is a versatile programming language used for web development." }, - { _id: 2, title: "Python Guide", content: "Learn Python programming with Python tutorials and Python examples." }, - { _id: 3, title: "Java Basics", content: "Java is another popular programming language." } - ]); - -**Query example** - - - db.articles.aggregate([ - { $match: { $text: { $search: "Python" } } }, - { $addFields: { score: { $meta: "textScore" } } }, - { $sort: { score: -1 } } - ]); - -**Output** - - - [ - { - _id: 2, - title: 'Python Guide', - content: 'Learn Python programming with Python tutorials and Python examples.', - score: 1.5 - }, - { - _id: 1, - title: 'Python Programming', - content: 'Python is a versatile programming language used for web development.', - score: 0.75 - } - ] - -## Code examples - -To view a code example for using the `$meta` 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('articles'); - - const result = await collection.aggregate([ - { $match: { $text: { $search: "Python" } } }, - { $addFields: { score: { $meta: "textScore" } } }, - { $sort: { score: -1 } } - ]).toArray(); - - console.log(result); - await client.close(); - } - - example(); - -Python - - - - from pymongo import MongoClient - - def example(): - client = MongoClient('mongodb://<username>:<password>@<cluster-endpoint>:27017/?tls=true&tlsCAFile=global-bundle.pem&replicaSet=rs0&readPreference=secondaryPreferred&retryWrites=false') - db = client['test'] - collection = db['articles'] - - result = list(collection.aggregate([ - { '$match': { '$text': { '$search': 'Python' } } }, - { '$addFields': { 'score': { '$meta': 'textScore' } } }, - { '$sort': { 'score': -1 } } - ])) - - print(result) - client.close() - - example() - - **Javascript is disabled or is unavailable in your browser.** - -To use the Amazon Web Services Documentation, Javascript must be enabled. Please refer to your browser's Help pages for instructions. - -[Document Conventions](/general/latest/gr/docconventions.html) - -$max - -$merge - -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.