From 3c4ba59e28c270439650b5c3f7c87e0ca844a575 Mon Sep 17 00:00:00 2001
From: Marco Neumann <marco.neumann@blue-yonder.com>
Date: Mon, 8 Jul 2019 11:53:16 +0200
Subject: [PATCH] extend iter_prefixes_upto_delimiter docs

---
 simplekv/__init__.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/simplekv/__init__.py b/simplekv/__init__.py
index 9d88f3f5..b7d5796f 100644
--- a/simplekv/__init__.py
+++ b/simplekv/__init__.py
@@ -117,6 +117,9 @@ def iter_prefixes_upto_delimiter(self, delimiter, prefix=u""):
 
         The uniqueness of the prefixes is ensured.
 
+        The default uses an naive key iteration. Some backends may implement more efficient
+        variants.
+
         :raises exceptions.IOError: If there was an error accessing the store.
         """
         dlen = len(delimiter)