AWS documentdb documentation change

Service: documentdb · 2026-03-31 · Documentation low

File: documentdb/latest/developerguide/lt-aggregation.md

Summary

Added documentation for the $lt aggregation operator with MongoDB shell examples and Node.js/Python code examples showing connection strings with TLS parameters

Security assessment

This change adds standard documentation for a MongoDB aggregation operator ($lt) with code examples. The connection strings include TLS parameters (tls=true, tlsCAFile=global-bundle.pem) which are standard security practices for encrypted connections, but this is routine documentation of existing security features rather than addressing a specific security issue. No evidence of vulnerability remediation or security incident response.

Diff

diff --git a/documentdb/latest/developerguide/lt-aggregation.md b/documentdb/latest/developerguide/lt-aggregation.md
index 8b1378917..4bcf5c61c 100644
--- a//documentdb/latest/developerguide/lt-aggregation.md
+++ b//documentdb/latest/developerguide/lt-aggregation.md
@@ -0,0 +1 @@
+[](/pdfs/documentdb/latest/developerguide/developerguide.pdf#lt-aggregation "Open PDF")
@@ -1,0 +3,130 @@
+[Documentation](/index.html)[Amazon DocumentDB](/documentdb/index.html)[Developer Guide](what-is.html)
+
+Example (MongoDB Shell)Code examples
+
+# $lt
+
+The `$lt` aggregation operator compares two values and returns `true` if the first value is less than the second, otherwise returns `false`.
+
+**Parameters**
+
+  * `expression1`: The first value to compare.
+
+  * `expression2`: The second value to compare.
+
+
+
+
+## Example (MongoDB Shell)
+
+The following example demonstrates using the `$lt` operator to identify low stock items.
+
+**Create sample documents**
+    
+    
+    db.warehouse.insertMany([
+      { _id: 1, item: "Bolts", stock: 5 },
+      { _id: 2, item: "Nuts", stock: 25 },
+      { _id: 3, item: "Screws", stock: 8 }
+    ]);
+
+**Query example**
+    
+    
+    db.warehouse.aggregate([
+      {
+        $project: {
+          item: 1,
+          stock: 1,
+          lowStock: { $lt: ["$stock", 10] }
+        }
+      }
+    ]);
+
+**Output**
+    
+    
+    [
+      { _id: 1, item: 'Bolts', stock: 5, lowStock: true },
+      { _id: 2, item: 'Nuts', stock: 25, lowStock: false },
+      { _id: 3, item: 'Screws', stock: 8, lowStock: true }
+    ]
+
+## Code examples
+
+To view a code example for using the `$lt` 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('warehouse');
+    
+      const result = await collection.aggregate([
+        {
+          $project: {
+            item: 1,
+            stock: 1,
+            lowStock: { $lt: ["$stock", 10] }
+          }
+        }
+      ]).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['warehouse']
+    
+        result = list(collection.aggregate([
+            {
+                '$project': {
+                    'item': 1,
+                    'stock': 1,
+                    'lowStock': { '$lt': ['$stock', 10] }
+                }
+            }
+        ]))
+    
+        print(result)
+        client.close()
+    
+    example()
+
+![Warning](https://d1ge0kk1l5kms0.cloudfront.net/images/G/01/webservices/console/warning.png) **Javascript is disabled or is unavailable in your browser.**
+
+To use the Amazon Web Services Documentation, Javascript must be enabled. Please refer to your browser's Help pages for instructions.
+
+[Document Conventions](/general/latest/gr/docconventions.html)
+
+$log10
+
+$lte
+
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