From 7ff7e33415d2bbcce76dad833b2424b6eec16564 Mon Sep 17 00:00:00 2001
From: Valeri Karpov <val@karpov.io>
Date: Sat, 30 Dec 2023 17:22:18 -0500
Subject: [PATCH] perf(schema): remove unnecessary lookahead in numeric subpath
 check

---
 lib/schema.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/schema.js b/lib/schema.js
index 895e452a36c..8d816c3c44d 100644
--- a/lib/schema.js
+++ b/lib/schema.js
@@ -24,6 +24,8 @@ const util = require('util');
 const utils = require('./utils');
 const validateRef = require('./helpers/populate/validateRef');
 
+const hasNumericSubpathRegex = /\.\d+(\.|$)/;
+
 let MongooseTypes;
 
 const queryHooks = require('./helpers/query/applyQueryMiddleware').
@@ -645,7 +647,7 @@ Schema.prototype.path = function(path, obj) {
     }
 
     // subpaths?
-    return /\.\d+\.?.*$/.test(path)
+    return hasNumericSubpathRegex.test(path)
       ? getPositionalPath(this, path)
       : undefined;
   }