diff --git a/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/QueryableProvider02-05.cs b/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/QueryableProvider02-05.cs
index 87aeab1a1..64b00ee4e 100644
--- a/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/QueryableProvider02-05.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/QueryableProvider02-05.cs
@@ -269,6 +269,10 @@ namespace SqlSugar
             var columnsResult = this.Context.EntityMaintenance.GetEntityInfo<TResult>().Columns;
             sql = AppendSelect<T>(sql, parameters, columnsResult, 0);
             sql = AppendSelect<T2>(sql, parameters, columnsResult, 1);
+            if (sql.Trim().First()==',')
+            {
+                sql = sql.TrimStart(' ').TrimStart(',');
+            }
             return this.Select<TResult>(sql);
         }
         #endregion
@@ -983,6 +987,10 @@ namespace SqlSugar
             sql = AppendSelect<T>(sql, parameters, columnsResult, 0);
             sql = AppendSelect<T2>(sql, parameters, columnsResult, 1);
             sql = AppendSelect<T3>(sql, parameters, columnsResult, 2);
+            if (sql.Trim().First() == ',')
+            {
+                sql = sql.TrimStart(' ').TrimStart(',');
+            }
             return this.Select<TResult>(sql);
         }
 
@@ -1595,6 +1603,10 @@ namespace SqlSugar
             sql = AppendSelect<T2>(sql, parameters, columnsResult, 1);
             sql = AppendSelect<T3>(sql, parameters, columnsResult, 2);
             sql = AppendSelect<T4>(sql, parameters, columnsResult, 3);
+            if (sql.Trim().First() == ',')
+            {
+                sql = sql.TrimStart(' ').TrimStart(',');
+            }
             return this.Select<TResult>(sql);
         }
 
@@ -2346,6 +2358,10 @@ namespace SqlSugar
             sql = AppendSelect<T3>(sql, parameters, columnsResult, 2);
             sql = AppendSelect<T4>(sql, parameters, columnsResult, 3);
             sql = AppendSelect<T5>(sql, parameters, columnsResult, 4);
+            if (sql.Trim().First() == ',')
+            {
+                sql = sql.TrimStart(' ').TrimStart(',');
+            }
             return this.Select<TResult>(sql);
         }
 
diff --git a/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/QueryableProvider06-10.cs b/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/QueryableProvider06-10.cs
index 004006b78..4acfaec6f 100644
--- a/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/QueryableProvider06-10.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/QueryableProvider06-10.cs
@@ -329,6 +329,10 @@ namespace SqlSugar
             sql = AppendSelect<T4>(sql, parameters, columnsResult, 3);
             sql = AppendSelect<T5>(sql, parameters, columnsResult, 4);
             sql = AppendSelect<T6>(sql, parameters, columnsResult, 5);
+            if (sql.Trim().First() == ',')
+            {
+                sql = sql.TrimStart(' ').TrimStart(',');
+            }
             return this.Select<TResult>(sql);
         }
         #endregion
@@ -1058,6 +1062,10 @@ namespace SqlSugar
             sql = AppendSelect<T5>(sql, parameters, columnsResult, 4);
             sql = AppendSelect<T6>(sql, parameters, columnsResult, 5);
             sql = AppendSelect<T7>(sql, parameters, columnsResult, 6);
+            if (sql.Trim().First() == ',')
+            {
+                sql = sql.TrimStart(' ').TrimStart(',');
+            }
             return this.Select<TResult>(sql);
         }
 
@@ -1794,6 +1802,10 @@ namespace SqlSugar
             sql = AppendSelect<T6>(sql, parameters, columnsResult, 5);
             sql = AppendSelect<T7>(sql, parameters, columnsResult, 6);
             sql = AppendSelect<T8>(sql, parameters, columnsResult, 7);
+            if (sql.Trim().First() == ',')
+            {
+                sql = sql.TrimStart(' ').TrimStart(',');
+            }
             return this.Select<TResult>(sql);
         }
 
@@ -2444,6 +2456,10 @@ namespace SqlSugar
             sql = AppendSelect<T7>(sql, parameters, columnsResult, 6);
             sql = AppendSelect<T8>(sql, parameters, columnsResult, 7);
             sql = AppendSelect<T9>(sql, parameters, columnsResult, 8);
+            if (sql.Trim().First() == ',')
+            {
+                sql = sql.TrimStart(' ').TrimStart(',');
+            }
             return this.Select<TResult>(sql);
         }
 
@@ -3131,6 +3147,10 @@ namespace SqlSugar
             sql = AppendSelect<T8>(sql, parameters, columnsResult, 7);
             sql = AppendSelect<T9>(sql, parameters, columnsResult, 8);
             sql = AppendSelect<T10>(sql, parameters, columnsResult, 9);
+            if (sql.Trim().First() == ',')
+            {
+                sql = sql.TrimStart(' ').TrimStart(',');
+            }
             return this.Select<TResult>(sql);
         }
 
diff --git a/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/QueryableProvider11-12.cs b/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/QueryableProvider11-12.cs
index 89cff0d84..728b394ad 100644
--- a/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/QueryableProvider11-12.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/QueryableProvider11-12.cs
@@ -324,6 +324,10 @@ namespace SqlSugar
             sql = AppendSelect<T9>(sql, parameters, columnsResult, 8);
             sql = AppendSelect<T10>(sql, parameters, columnsResult, 9);
             sql = AppendSelect<T11>(sql, parameters, columnsResult, 10);
+            if (sql.Trim().First() == ',')
+            {
+                sql = sql.TrimStart(' ').TrimStart(',');
+            }
             return this.Select<TResult>(sql);
         }
         public ISugarQueryable<TResult> Select<TResult>(Expression<Func<T, T2, TResult>> expression)
@@ -914,6 +918,10 @@ namespace SqlSugar
             sql = AppendSelect<T10>(sql, parameters, columnsResult, 9);
             sql = AppendSelect <T11>(sql, parameters, columnsResult, 10);
             sql = AppendSelect<T12>(sql, parameters, columnsResult, 11);
+            if (sql.Trim().First() == ',')
+            {
+                sql = sql.TrimStart(' ').TrimStart(',');
+            }
             return this.Select<TResult>(sql);
         }
         public ISugarQueryable<TResult> Select<TResult>(Expression<Func<T, T2, TResult>> expression)
diff --git a/Src/Asp.NetCore2/SqlSugar/Abstract/SugarProvider/SqlSugarAccessory.cs b/Src/Asp.NetCore2/SqlSugar/Abstract/SugarProvider/SqlSugarAccessory.cs
index 081ba2b24..cb5c2a1c9 100644
--- a/Src/Asp.NetCore2/SqlSugar/Abstract/SugarProvider/SqlSugarAccessory.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Abstract/SugarProvider/SqlSugarAccessory.cs
@@ -153,11 +153,11 @@ namespace SqlSugar
         }
         public void InitMappingInfo(Type type)
         {
-            string cacheKey = "Context.InitAttributeMappingTables" + type.FullName;
+            string cacheKey = "Context.InitAttributeMappingTables" + type.FullName+this.Context?.CurrentConnectionConfig?.ConfigId;
             var entityInfo = this.Context.Utilities.GetReflectionInoCacheInstance().GetOrCreate<EntityInfo>(cacheKey,
               () =>
               {
-                  var result = this.Context.EntityMaintenance.GetEntityInfo(type);
+                  var result = this.Context.EntityMaintenance.GetEntityInfoWithAttr(type);
                   return result;
               });
             //var copyObj = CopyEntityInfo(entityInfo);
diff --git a/Src/Asp.NetCore2/SqlSugar/SqlSugarForCore.nuspec b/Src/Asp.NetCore2/SqlSugar/SqlSugarForCore.nuspec
index 91461b082..e8caca336 100644
--- a/Src/Asp.NetCore2/SqlSugar/SqlSugarForCore.nuspec
+++ b/Src/Asp.NetCore2/SqlSugar/SqlSugarForCore.nuspec
@@ -2,7 +2,7 @@
 <package >
   <metadata>
     <id>SqlSugarCore</id>
-    <version>5.1.4.86</version>
+    <version>5.1.4.87-preview06</version>
     <authors>sunkaixuan</authors>
     <owners>果糖大数据科技</owners>
     <licenseUrl>http://www.apache.org/licenses/LICENSE-2.0.html</licenseUrl>