AWS documentdb documentation change
Summary
Added new documentation page for the $min aggregation operator with MongoDB Shell, Node.js, and Python code examples
Security assessment
This change adds routine documentation for the $min aggregation operator in Amazon DocumentDB. The code examples include standard TLS connection parameters (tls=true, tlsCAFile) which are normal security best practices for database connections, but this is not documenting a new security feature or addressing a specific security vulnerability. The change appears to be standard feature documentation.
Diff
diff --git a/documentdb/latest/developerguide/min.md b/documentdb/latest/developerguide/min.md index 8b1378917..6d5360cba 100644 --- a//documentdb/latest/developerguide/min.md +++ b//documentdb/latest/developerguide/min.md @@ -0,0 +1 @@ +[](/pdfs/documentdb/latest/developerguide/developerguide.pdf#min "Open PDF") @@ -1,0 +3,114 @@ +[Documentation](/index.html)[Amazon DocumentDB](/documentdb/index.html)[Developer Guide](what-is.html) + +Example (MongoDB Shell)Code examples + +# $min + +The `$min` operator returns the minimum value from an array of values. It can be used in aggregation stages to find the minimum value for a specified field across multiple documents. + +**Parameters** + + * `expression`: The expression to evaluate. This can be a field path, a variable, or any expression that resolves to a value. + + + + +## Example (MongoDB Shell) + +The following example demonstrates the usage of the `$min` operator to find the minimum value of the `age` field across multiple documents. + +**Create sample documents** + + + db.users.insertMany([ + { name: "John", age: 35 }, + { name: "Jane", age: 28 }, + { name: "Bob", age: 42 }, + { name: "Alice", age: 31 } + ]); + +**Query example** + + + db.users.aggregate([ + { $group: { _id: null, minAge: { $min: "$age" } } }, + { $project: { _id: 0, minAge: 1 } } + ]) + +**Output** + + + [ { minAge: 28 } ] + +## Code examples + +To view a code example for using the `$min` command, choose the tab for the language that you want to use: + +Node.js + + + + const { MongoClient } = require('mongodb'); + + async function findMinAge() { + 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 users = db.collection('users'); + + const result = await users.aggregate([ + { $group: { + _id: null, + minAge: { $min: "$age" } + }} + ]).toArray(); + + console.log(result); + client.close(); + } + + findMinAge(); + +Python + + + + from pymongo import MongoClient + + def find_min_age(): + client = MongoClient('mongodb://<username>:<password>@<cluster-endpoint>:27017/?tls=true&tlsCAFile=global-bundle.pem&replicaSet=rs0&readPreference=secondaryPreferred&retryWrites=false') + db = client['test'] + users = db.users + + result = list(users.aggregate([ + { "$group": { + "_id": None, + "minAge": { "$min": "$age" } + }} + ])) + + print(result) + client.close() + + find_min_age() + + **Javascript is disabled or is unavailable in your browser.** + +To use the Amazon Web Services Documentation, Javascript must be enabled. Please refer to your browser's Help pages for instructions. + +[Document Conventions](/general/latest/gr/docconventions.html) + +$millisecond + +$minute + +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.