From eb237cf4f1bce04056792990972525171a2e4574 Mon Sep 17 00:00:00 2001
From: Basit Chonka <basit.chonka@mongodb.com>
Date: Fri, 26 Sep 2025 16:27:04 +0200
Subject: [PATCH] add vector similarity expression operators

---
 .../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 f616e55a..6d772210 100644
--- a/packages/mongodb-constants/src/expression-operators.ts
+++ b/packages/mongodb-constants/src/expression-operators.ts
@@ -583,6 +583,27 @@ const EXPRESSION_OPERATORS = [
     meta: 'expr:set',
     version: '2.6.0',
   },
+  {
+    name: '$similarityCosine',
+    value: '$similarityCosine',
+    score: 1,
+    meta: 'expr:arith',
+    version: '8.2.0',
+  },
+  {
+    name: '$similarityDotProduct',
+    value: '$similarityDotProduct',
+    score: 1,
+    meta: 'expr:arith',
+    version: '8.2.0',
+  },
+  {
+    name: '$similarityEuclidean',
+    value: '$similarityEuclidean',
+    score: 1,
+    meta: 'expr:arith',
+    version: '8.2.0',
+  },
   {
     name: '$size',
     value: '$size',