diff --git a/Src/Asp.NetCore2/SqlSugar.TDengineCore/TDengine/DbMaintenance/TDengineDbMaintenance.cs b/Src/Asp.NetCore2/SqlSugar.TDengineCore/TDengine/DbMaintenance/TDengineDbMaintenance.cs
index 4bce94c13..06f020ead 100644
--- a/Src/Asp.NetCore2/SqlSugar.TDengineCore/TDengine/DbMaintenance/TDengineDbMaintenance.cs
+++ b/Src/Asp.NetCore2/SqlSugar.TDengineCore/TDengine/DbMaintenance/TDengineDbMaintenance.cs
@@ -13,7 +13,7 @@ namespace SqlSugar.TDengine
         {
             get
             {
-                return "SELECT datname FROM pg_database";
+                return "show databases";
             }
         }
         protected override string GetColumnInfosByTableNameSql