AWS documentdb documentation change

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

File: documentdb/latest/developerguide/sqrt.md

Summary

Added new documentation page for the $sqrt operator in Amazon DocumentDB, including syntax, parameters, MongoDB shell example, and code examples in Node.js and Python

Security assessment

This change adds documentation for a mathematical operator ($sqrt) with standard usage examples. The code examples include TLS connection parameters (tls=true, tlsCAFile) which are standard security practices for DocumentDB connections, but these are not new security features - they're standard connection parameters that were likely already documented elsewhere. There is no evidence this addresses a specific security vulnerability or incident.

Diff

diff --git a/documentdb/latest/developerguide/sqrt.md b/documentdb/latest/developerguide/sqrt.md
index 8b1378917..c54810149 100644
--- a//documentdb/latest/developerguide/sqrt.md
+++ b//documentdb/latest/developerguide/sqrt.md
@@ -0,0 +1 @@
+[](/pdfs/documentdb/latest/developerguide/developerguide.pdf#sqrt "Open PDF")
@@ -1,0 +3,147 @@
+[Documentation](/index.html)[Amazon DocumentDB](/documentdb/index.html)[Developer Guide](what-is.html)
+
+Example (MongoDB Shell)Code examples
+
+# $sqrt
+
+New from version 4.0.
+
+The `$sqrt` operator in Amazon DocumentDB is used to calculate the square root of a number.
+
+**Parameters**
+
+  * `expression`: The argument can be any valid expression as long as it resolves to a non-negative number.
+
+
+
+
+## Example (MongoDB Shell)
+
+The following example demonstrates the usage of the `$sqrt` operator to calculate the square root of a number.
+
+**Create sample documents**
+    
+    
+    db.numbers.insertMany([
+      { "_id": 1, "number": 16 },
+      { "_id": 2, "number": 36 },
+      { "_id": 3, "number": 64 }
+    ]);
+
+**Query example**
+    
+    
+    db.numbers.aggregate([
+      { $project: {
+        "_id": 1,
+        "square_root": { $sqrt: "$number" }
+      }}
+    ]);
+
+**Output**
+    
+    
+    [
+      { _id: 1, square_root: 4 },
+      { _id: 2, square_root: 6 },
+      { _id: 3, square_root: 8 }
+    ]
+
+## Code examples
+
+To view a code example for using the `$sqrt` 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');
+    
+      try {
+          await client.connect();
+    
+          const db = client.db('test');
+          const collection = db.collection('numbers');
+    
+          const pipeline = [
+            {
+              $project: {
+                _id: 1,
+                square_root: { $sqrt: '$number' }
+              }
+            }
+          ];
+    
+          const results = await collection.aggregate(pipeline).toArray();
+    
+          console.dir(results, { depth: null });
+    
+        } finally {
+          await client.close();
+        }
+    }
+    
+    example().catch(console.error);
+
+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')
+    
+      try:
+          db = client.test
+          collection = db.numbers
+    
+          pipeline = [
+              {
+                  "$project": {
+                      "_id": 1,
+                      "square_root": { 
+                        "$sqrt": "$number" 
+                      }
+                  }
+              }
+          ]
+    
+          results = collection.aggregate(pipeline)
+    
+          for doc in results:
+              print(doc)
+    
+      except Exception as e:
+          print(f"An error occurred: {e}")
+    
+      finally:
+          client.close()
+    
+    example()
+
+![Warning](https://d1ge0kk1l5kms0.cloudfront.net/images/G/01/webservices/console/warning.png) **Javascript is disabled or is unavailable in your browser.**
+
+To use the Amazon Web Services Documentation, Javascript must be enabled. Please refer to your browser's Help pages for instructions.
+
+[Document Conventions](/general/latest/gr/docconventions.html)
+
+$split
+
+$strLenBytes
+
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+
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+
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+
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+
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+
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