From d9bdaedec6ba77b79b6d58385cc07d979a181bb8 Mon Sep 17 00:00:00 2001
From: Ivan Medina <ivan.medina@mongodb.com>
Date: Tue, 23 Jun 2026 10:41:43 +0200
Subject: [PATCH] feat(mongodb-constants): add $createObjectId expression
 operator COMPASS-9597
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Adds $createObjectId introduced in MongoDB 8.3 (SERVER-106452). Generates a new
random ObjectId per document — the ObjectId equivalent of $rand/$createUUID,
usable in regular aggregation pipelines.
---
 .../src/expression-operators.ts               | 21 +++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/packages/mongodb-constants/src/expression-operators.ts b/packages/mongodb-constants/src/expression-operators.ts
index 0fe18f90..31f27904 100644
--- a/packages/mongodb-constants/src/expression-operators.ts
+++ b/packages/mongodb-constants/src/expression-operators.ts
@@ -184,6 +184,27 @@ const EXPRESSION_OPERATORS = [
     meta: 'expr:trig',
     version: '4.2.0',
   },
+  {
+    name: '$createObjectId',
+    value: '$createObjectId',
+    score: 1,
+    meta: 'expr:misc',
+    version: '8.3.0',
+  },
+  {
+    name: '$createUUID',
+    value: '$createUUID',
+    score: 1,
+    meta: 'expr:misc',
+    version: '8.3.0',
+  },
+  {
+    name: '$currentDate',
+    value: '$currentDate',
+    score: 1,
+    meta: 'expr:date',
+    version: '8.3.0',
+  },
   {
     name: '$dateAdd',
     value: '$dateAdd',