Update TDengine

Src/Asp.NetCore2/SqlSugar.TDengineCore/Tools/SqlSugarExtensions.cs

@@ -0,0 +1,29 @@
+using SqlSugar.TDengine;
+using System;
+using System.Collections.Generic;
+using System.Reflection;
+using System.Text;
+
+namespace SqlSugar 
+{
+     public static class SqlSugarExtensions
+    {
+        public static void MappingSTableName<T>(this ISqlSugarClient db,string newSTableName)
+        {
+            STableAttribute sTableAttribute = typeof(T).GetCustomAttribute<STableAttribute>();
+            if (db.TempItems == null) 
+            {
+                db.TempItems = new Dictionary<string, object>();
+            }
+            if (sTableAttribute != null)
+            {
+                var key = "GetCommonSTableAttribute_" + sTableAttribute.STableName;
+                if (db.TempItems.ContainsKey(key)) 
+                {
+                    db.TempItems.Remove(key);
+                }
+                db.TempItems.Add(key, newSTableName);
+            } 
+        }
+    }
+}