From aeada20140570643cda084d374056469a5c27bf2 Mon Sep 17 00:00:00 2001
From: Chen Tianjie <chentianjie.ctj@alibaba-inc.com>
Date: Tue, 19 Mar 2024 10:14:19 +0800
Subject: [PATCH] Avoid unnecessary dict shrink in zremrangeGenericCommand
 (#13143)

If the skiplist is emptied, there is no need to shrink the dict in
skiplist, it can be deleted directly.
---
 src/t_zset.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/t_zset.c b/src/t_zset.c
index 19a8c865b..3a5338067 100644
--- a/src/t_zset.c
+++ b/src/t_zset.c
@@ -2024,10 +2024,11 @@ void zremrangeGenericCommand(client *c, zrange_type rangetype) {
             break;
         }
         dictResumeAutoResize(zs->dict);
-        dictShrinkIfNeeded(zs->dict);
         if (dictSize(zs->dict) == 0) {
             dbDelete(c->db,key);
             keyremoved = 1;
+        } else {
+            dictShrinkIfNeeded(zs->dict);
         }
     } else {
         serverPanic("Unknown sorted set encoding");