From 39040b3cd022d69d7c4678738d2fe2abf902f3c5 Mon Sep 17 00:00:00 2001
From: Adam Liddell <git@aliddell.com>
Date: Sun, 19 Jul 2020 02:40:03 +0100
Subject: [PATCH] Fix usage documentation for hstore (#515)

---
 docs/usage.rst | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/docs/usage.rst b/docs/usage.rst
index 9a88d2ca..3c835ece 100644
--- a/docs/usage.rst
+++ b/docs/usage.rst
@@ -320,8 +320,8 @@ be registered on a connection using :meth:`Connection.set_builtin_type_codec()
         # Assuming the hstore extension exists in the public schema.
         await conn.set_builtin_type_codec(
             'hstore', codec_name='pg_contrib.hstore')
-        result = await conn.fetchval("SELECT 'a=>1,b=>2'::hstore")
-        assert result == {'a': 1, 'b': 2}
+        result = await conn.fetchval("SELECT 'a=>1,b=>2,c=>NULL'::hstore")
+        assert result == {'a': '1', 'b': '2', 'c': None}
 
     asyncio.get_event_loop().run_until_complete(run())