From 42b358c9ca9041d7ad3cdc3f42347131ae3f50a5 Mon Sep 17 00:00:00 2001
From: baiyadong <baiyadong@jd.com>
Date: Mon, 6 Jun 2022 16:55:43 +0800
Subject: [PATCH] Each slow log prints out the database name

---
 sql/log.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sql/log.cc b/sql/log.cc
index 6f55a70c3074..cb415be414b1 100644
--- a/sql/log.cc
+++ b/sql/log.cc
@@ -878,7 +878,7 @@ bool File_query_log::write_slow(THD *thd, ulonglong current_utime,
                   (ulong) thd->get_sent_row_count(),
                   (ulong) thd->get_examined_row_count()) == (uint) -1)
     goto err;
-  if (thd->db().str && strcmp(thd->db().str, db))
+  if (thd->db().str)
   {						// Database changed
     if (my_b_printf(&log_file,"use %s;\n",thd->db().str) == (uint) -1)
       goto err;