From 8a37c33fadc8dbab6832d112cc2a469959f229f4 Mon Sep 17 00:00:00 2001
From: lihui <huili@taosdata.com>
Date: Mon, 16 Dec 2019 14:35:23 +0800
Subject: [PATCH] [TBASE-1348]

---
 src/kit/shell/src/shellEngine.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/kit/shell/src/shellEngine.c b/src/kit/shell/src/shellEngine.c
index ecda6912c3..116209b784 100644
--- a/src/kit/shell/src/shellEngine.c
+++ b/src/kit/shell/src/shellEngine.c
@@ -255,7 +255,7 @@ void shellRunCommandOnServer(TAOS *con, char command[]) {
     return;
   }
 
-  if (regex_match(command, "^\\s*use\\s+[a-zA-Z0-9]+\\s*;\\s*$", REG_EXTENDED | REG_ICASE)) {
+  if (regex_match(command, "^\\s*use\\s+[a-zA-Z0-9_]+\\s*;\\s*$", REG_EXTENDED | REG_ICASE)) {
     fprintf(stdout, "Database changed.\n\n");
     fflush(stdout);
     return;