From 96d8b4eeba2503c9f679e41963220a72ee5baeda Mon Sep 17 00:00:00 2001
From: antirez <antirez@gmail.com>
Date: Thu, 12 Nov 2009 21:35:05 +0100
Subject: [PATCH] ZSCORE fixed, now returns NULL on missing key or missing
 element

---
 redis.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/redis.c b/redis.c
index aec09bdf..470191da 100644
--- a/redis.c
+++ b/redis.c
@@ -4372,7 +4372,7 @@ static void zscoreCommand(redisClient *c) {
     
     o = lookupKeyRead(c->db,c->argv[1]);
     if (o == NULL) {
-        addReply(c,shared.czero);
+        addReply(c,shared.nullbulk);
         return;
     } else {
         if (o->type != REDIS_ZSET) {