diff --git a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/CacheProvider/CacheProvider.cs b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/CacheProvider/CacheProvider.cs
new file mode 100644
index 000000000..acb601470
--- /dev/null
+++ b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/CacheProvider/CacheProvider.cs
@@ -0,0 +1,43 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SqlSugar 
+{
+    public class SugarCacheProvider
+    {
+        public ICacheService Servie { get;  set; }
+
+        public void RemoveDataCache(string likeString) 
+        {
+            if (Servie == null) return;
+            CacheSchemeMain.RemoveCacheByLike(Servie, likeString);
+        }
+
+        public List<string> GetAllKey()
+        {
+            if (Servie == null) return new List<string>();
+            return Servie.GetAllKey<string>()?.ToList();
+        }
+
+        public void Add(string key,object value)
+        {
+            if (Servie == null)  return;
+            Servie.Add(key,value,60*60*24*100);
+        }
+
+        public void Add(string key, object value,int seconds)
+        {
+            if (Servie == null) return;
+            Servie.Add(key, value,seconds);
+        }
+
+        public T Get<T>(string key)
+        {
+            if (Servie == null) return default(T);
+            return Servie.Get<T>(key);
+        }
+    }
+}
diff --git a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/DeleteProvider/DeleteableProvider.cs b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/DeleteProvider/DeleteableProvider.cs
index 374d1e918..ac7aaacdf 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/DeleteProvider/DeleteableProvider.cs
+++ b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/DeleteProvider/DeleteableProvider.cs
@@ -238,7 +238,15 @@ namespace SqlSugar
             };
             return this;
         }
-
+        public IDeleteable<T> RemoveDataCache(string likeString)
+        {
+            this.RemoveCacheFunc = () =>
+            {
+                var cacheService = this.Context.CurrentConnectionConfig.ConfigureExternalServices.DataInfoCacheService;
+                CacheSchemeMain.RemoveCacheByLike(cacheService, likeString);
+            };
+            return this;
+        }
         public IDeleteable<T> In<PkType>(List<PkType> primaryKeyValues)
         {
             if (primaryKeyValues == null || primaryKeyValues.Count() == 0)
diff --git a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/InsertableProvider/InsertableProvider.cs b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/InsertableProvider/InsertableProvider.cs
index 1efa61dee..c16512e94 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/InsertableProvider/InsertableProvider.cs
+++ b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/InsertableProvider/InsertableProvider.cs
@@ -188,19 +188,20 @@ namespace SqlSugar
             if (columns == null)
                 columns = new string[] { };
             this.InsertBuilder.DbColumnInfoList = this.InsertBuilder.DbColumnInfoList.Where(it => !columns.Any(ig => ig.Equals(it.PropertyName, StringComparison.CurrentCultureIgnoreCase))).ToList();
+            this.InsertBuilder.DbColumnInfoList = this.InsertBuilder.DbColumnInfoList.Where(it => !columns.Any(ig => ig.Equals(it.DbColumnName, StringComparison.CurrentCultureIgnoreCase))).ToList();
             return this;
         }
 
         public IInsertable<T> InsertColumns(Expression<Func<T, object>> columns)
         {
             var ignoreColumns = InsertBuilder.GetExpressionValue(columns, ResolveExpressType.ArraySingle).GetResultArray().Select(it => this.SqlBuilder.GetNoTranslationColumnName(it)).ToList();
-            this.InsertBuilder.DbColumnInfoList = this.InsertBuilder.DbColumnInfoList.Where(it => ignoreColumns.Any(ig => ig.Equals(it.PropertyName, StringComparison.CurrentCultureIgnoreCase))).ToList();
+            this.InsertBuilder.DbColumnInfoList = this.InsertBuilder.DbColumnInfoList.Where(it => ignoreColumns.Any(ig => ig.Equals(it.PropertyName, StringComparison.CurrentCultureIgnoreCase)) || ignoreColumns.Any(ig => ig.Equals(it.DbColumnName, StringComparison.CurrentCultureIgnoreCase))).ToList();
             return this;
         }
 
         public IInsertable<T> InsertColumns(string[] columns)
         {
-            this.InsertBuilder.DbColumnInfoList = this.InsertBuilder.DbColumnInfoList.Where(it => columns.Any(ig => ig.Equals(it.PropertyName, StringComparison.CurrentCultureIgnoreCase))).ToList();
+            this.InsertBuilder.DbColumnInfoList = this.InsertBuilder.DbColumnInfoList.Where(it => columns.Any(ig => ig.Equals(it.PropertyName, StringComparison.CurrentCultureIgnoreCase))|| columns.Any(ig => ig.Equals(it.DbColumnName, StringComparison.CurrentCultureIgnoreCase))).ToList();
             return this;
         }
 
@@ -228,6 +229,15 @@ namespace SqlSugar
             };
             return this;
         }
+        public IInsertable<T> RemoveDataCache(string likeString)
+        {
+            this.RemoveCacheFunc = () =>
+            {
+                var cacheService = this.Context.CurrentConnectionConfig.ConfigureExternalServices.DataInfoCacheService;
+                CacheSchemeMain.RemoveCacheByLike(cacheService, likeString);
+            };
+            return this;
+        }
         public MySqlBlueCopy<T> UseMySql()
         {
             return new MySqlBlueCopy<T>(this.Context, this.SqlBuilder, InsertObjs);
diff --git a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/InsertableProvider/SubInserable.cs b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/InsertableProvider/SubInserable.cs
index 40af24fda..87545952f 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/InsertableProvider/SubInserable.cs
+++ b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/InsertableProvider/SubInserable.cs
@@ -166,6 +166,10 @@ namespace SqlSugar
                                 child.GetType().GetProperty(subMemberName).SetValue(child, pkValue);
                             }
                         }
+                        if (!(childList as IEnumerable<object>).Any())
+                        {
+                            continue;
+                        }
                         var type = (childList as IEnumerable<object>).First().GetType();
                         this.Context.InitMappingInfo(type);
                         var entityInfo = this.Context.EntityMaintenance.GetEntityInfo(type);
diff --git a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs
index cb429cb2f..f87dda264 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs
+++ b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs
@@ -622,6 +622,7 @@ namespace SqlSugar
             if (QueryBuilder.Take == null)
                 QueryBuilder.Take = 1;
             _PartitionBy(expression);
+            QueryBuilder.DisableTop = true;
             return this;
         }
         public virtual ISugarQueryable<T> PartitionBy(string groupFileds)
@@ -750,6 +751,9 @@ namespace SqlSugar
             var result = InstanceFactory.GetQueryable<TResult>(this.Context.CurrentConnectionConfig);
             result.Context = this.Context;
             result.SqlBuilder = this.SqlBuilder;
+            result.QueryBuilder.ResultType = this.QueryBuilder.ResultType;
+            result.IsCache = this.IsCache;
+            result.CacheTime = this.CacheTime;
             QueryBuilder.SelectValue = selectValue;
             if (this.IsAs)
             {
@@ -953,6 +957,7 @@ namespace SqlSugar
 
         public virtual DataTable ToDataTable()
         {
+            QueryBuilder.ResultType = typeof(SugarCacheDataTable);
             InitMapping();
             var sqlObj = this.ToSql();
             RestoreMapping();
@@ -1001,6 +1006,7 @@ namespace SqlSugar
 
         public Dictionary<string, object> ToDictionary(Expression<Func<T, object>> key, Expression<Func<T, object>> value)
         {
+            this.QueryBuilder.ResultType = typeof(SugarCacheDictionary);
             var keyName = QueryBuilder.GetExpressionValue(key, ResolveExpressType.FieldSingle).GetResultString();
             var valueName = QueryBuilder.GetExpressionValue(value, ResolveExpressType.FieldSingle).GetResultString();
             var result = this.Select<KeyValuePair<string, object>>(keyName + "," + valueName).ToList().ToDictionary(it => it.Key.ObjToString(), it => it.Value);
@@ -1008,8 +1014,9 @@ namespace SqlSugar
         }
         public async Task<Dictionary<string, object>> ToDictionaryAsync(Expression<Func<T, object>> key, Expression<Func<T, object>> value)
         {
-            var keyName = QueryBuilder.GetExpressionValue(key, ResolveExpressType.FieldSingle);
-            var valueName = QueryBuilder.GetExpressionValue(value, ResolveExpressType.FieldSingle);
+            this.QueryBuilder.ResultType = typeof(SugarCacheDictionary);
+            var keyName = QueryBuilder.GetExpressionValue(key, ResolveExpressType.FieldSingle).GetResultString();
+            var valueName = QueryBuilder.GetExpressionValue(value, ResolveExpressType.FieldSingle).GetResultString();
             var list = await this.Select<KeyValuePair<string, object>>(keyName + "," + valueName).ToListAsync();
             var result =list.ToDictionary(it => it.Key.ObjToString(), it => it.Value);
             return result;
@@ -1323,6 +1330,7 @@ namespace SqlSugar
         }
         public async Task<DataTable> ToDataTableAsync()
         {
+            QueryBuilder.ResultType = typeof(SugarCacheDataTable);
             InitMapping();
             var sqlObj = this.ToSql();
             RestoreMapping();
diff --git a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/SqlBuilderProvider/QueryBuilder.cs b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/SqlBuilderProvider/QueryBuilder.cs
index f97f197d0..fb38272f1 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/SqlBuilderProvider/QueryBuilder.cs
+++ b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/SqlBuilderProvider/QueryBuilder.cs
@@ -40,6 +40,7 @@ namespace SqlSugar
         public int ExternalPageIndex { get; set; }
         public int ExternalPageSize { get; set; }
         public int? Take { get; set; }
+        public bool DisableTop { get; set; }
         public string OrderByValue { get; set; }
         public object SelectValue { get; set; }
         public string SelectCacheKey { get; set; }
@@ -47,6 +48,7 @@ namespace SqlSugar
 
 
         public Type EntityType { get; set; }
+        public Type ResultType { get; set; }
         public string TableWithString { get; set; }
         public string GroupByValue { get; set; }
         public string PartitionByValue { get; set; }
diff --git a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/SugarProvider/SqlSugarProvider.cs b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/SugarProvider/SqlSugarProvider.cs
index 57af42017..2e23d2b12 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/SugarProvider/SqlSugarProvider.cs
+++ b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/SugarProvider/SqlSugarProvider.cs
@@ -544,6 +544,7 @@ namespace SqlSugar
             List<KeyValuePair<string, List<SugarParameter>>> allItems = new List<KeyValuePair<string, List<SugarParameter>>>();
             foreach (var item in queryables)
             {
+                item.QueryBuilder.DisableTop = true;
                 var sqlObj = item.ToSql();
                 string sql = sqlObj.Key;
                 UtilMethods.RepairReplicationParameters(ref sql, sqlObj.Value.ToArray(), i, "Union");
@@ -1068,5 +1069,21 @@ namespace SqlSugar
         }
 
         #endregion
+
+        #region Cache
+        public SugarCacheProvider DataCache 
+        { 
+            get {
+                var services=this.CurrentConnectionConfig.ConfigureExternalServices;
+                if (services == null)
+                    return new SugarCacheProvider();
+                if (services.DataInfoCacheService == null)
+                    return new SugarCacheProvider();
+                SugarCacheProvider cache = new SugarCacheProvider();
+                cache.Servie=services.DataInfoCacheService;
+                return cache;
+            }
+        }
+        #endregion
     }
 }
diff --git a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/UpdateProvider/UpdateableProvider.cs b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/UpdateProvider/UpdateableProvider.cs
index b21ae8323..45d7b38a5 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/UpdateProvider/UpdateableProvider.cs
+++ b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/UpdateProvider/UpdateableProvider.cs
@@ -97,6 +97,15 @@ namespace SqlSugar
             };
             return this;
         }
+        public IUpdateable<T> RemoveDataCache(string likeString)
+        {
+            this.RemoveCacheFunc = () =>
+            {
+                var cacheService = this.Context.CurrentConnectionConfig.ConfigureExternalServices.DataInfoCacheService;
+                CacheSchemeMain.RemoveCacheByLike(cacheService,likeString);
+            };
+            return this;
+        }
         public IUpdateable<T> IsEnableUpdateVersionValidation()
         {
             this.IsVersionValidation = true;
@@ -740,11 +749,11 @@ namespace SqlSugar
 
         private void ThrowUpdateByExpression()
         {
-            Check.Exception(UpdateParameterIsNull == true, ErrorMessage.GetThrowMessage("no support SetColumns and Where ", "根据对象进行更新 db.Updateable(现有集合对象) 禁止使用 SetColumns和Where,你可以使用 WhereColumns UpdateColumns 等。更新分为2种方式 1.根据表达式更新 2.根据实体或者集合更新， 具体用法请查看文档 "));
+            Check.Exception(UpdateParameterIsNull == true, ErrorMessage.GetThrowMessage(" no support UpdateColumns and WhereColumns", "根据表达式更新 db.Updateable<T>() 禁止使用 UpdateColumns和WhereColumns,你可以使用 SetColumns Where 等。更新分为2种方式 1.根据表达式更新 2.根据实体或者集合更新， 具体用法请查看文档 "));
         }
         private void ThrowUpdateByObject()
         {
-            Check.Exception(UpdateParameterIsNull == false, ErrorMessage.GetThrowMessage("no support UpdateColumns and WhereColumns ", "根据表达式进行更新 禁止使用 UpdateColumns和WhereColumns ,你可以使用SetColumns 和 Where。 更新分为2种方式 1.根据表达式更新 2.根据实体或者集合更新 ， 具体用法请查看文档 "));
+            Check.Exception(UpdateParameterIsNull == false, ErrorMessage.GetThrowMessage(" no support SetColumns and Where", "根据对像更新 db.Updateabe(对象) 禁止使用 SetColumns和Where ,你可以使用WhereColumns 和  UpdateColumns。 更新分为2种方式 1.根据表达式更新 2.根据实体或者集合更新 ， 具体用法请查看文档 "));
         }
         #endregion
     }
diff --git a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/CacheScheme/CacheKeyBuider.cs b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/CacheScheme/CacheKeyBuider.cs
index 856a06863..5cba87306 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/CacheScheme/CacheKeyBuider.cs
+++ b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/CacheScheme/CacheKeyBuider.cs
@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Data;
 using System.Linq;
 using System.Text;
 
@@ -13,6 +14,10 @@ namespace SqlSugar
             result.Database = context.Context.Ado.Connection.Database;
             AddTables(context, queryBuilder, result);
             AddIdentificationList(queryBuilder, result);
+            if (queryBuilder.ResultType!=null) 
+            {
+                result.IdentificationList.Add(queryBuilder.ResultType.FullName);
+            }
             return result;
         }
 
@@ -58,4 +63,17 @@ namespace SqlSugar
             }
         }
     }
+
+    internal class SugarCacheDictionary
+    {
+    
+    }
+    internal class SugarCacheDictionaryList
+    {
+
+    }
+    internal class SugarCacheDataTable
+    {
+
+    }
 }
diff --git a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/CacheScheme/CacheSchemeMain.cs b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/CacheScheme/CacheSchemeMain.cs
index d9bbd4440..c487e330d 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/CacheScheme/CacheSchemeMain.cs
+++ b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/CacheScheme/CacheSchemeMain.cs
@@ -33,5 +33,23 @@ namespace SqlSugar
                 }
             }
         }
+        public static void RemoveCacheByLike(ICacheService cacheService, string likeString)
+        {
+            if (cacheService == null)
+            {
+                return;
+            }
+            var keys = cacheService.GetAllKey<string>();
+            if (keys.HasValue())
+            {
+                foreach (var item in keys)
+                {
+                    if (item.ToLower().Contains(likeString.ToLower()))
+                    {
+                        cacheService.Remove<string>(item);
+                    }
+                }
+            }
+        }
     }
 }
diff --git a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/ExpressionsToSql/ResolveItems/MemberInitExpressionResolve.cs b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/ExpressionsToSql/ResolveItems/MemberInitExpressionResolve.cs
index fae2c88e3..af9e70668 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/ExpressionsToSql/ResolveItems/MemberInitExpressionResolve.cs
+++ b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/ExpressionsToSql/ResolveItems/MemberInitExpressionResolve.cs
@@ -134,7 +134,14 @@ namespace SqlSugar
                     base.Start();
                     string parameterName = this.Context.SqlParameterKeyWord + ExpressionConst.Const + this.Context.ParameterIndex;
                     parameter.Context.Result.Append(base.Context.GetEqString(memberName, parameterName));
-                    this.Context.Parameters.Add(new SugarParameter(parameterName, parameter.CommonTempData));
+                    var addItem = new SugarParameter(parameterName, parameter.CommonTempData);
+                    var dataType = UtilMethods.GetUnderType(item.Type);
+                    if (addItem.Value == null && dataType == UtilConstants.DateType)
+                    {
+                        addItem.DbType = System.Data.DbType.Date;
+
+                    }
+                    this.Context.Parameters.Add(addItem);
                     this.Context.ParameterIndex++;
                 }
                 else if (item is MemberExpression)
diff --git a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Infrastructure/InstanceFactory.cs b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Infrastructure/InstanceFactory.cs
index 2f70bd7ae..a986242f8 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Infrastructure/InstanceFactory.cs
+++ b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Infrastructure/InstanceFactory.cs
@@ -9,7 +9,7 @@ namespace SqlSugar
     
     public class InstanceFactory
     {
-        static Assembly assembly = Assembly.Load(UtilConstants.AssemblyName);
+        static Assembly assembly = Assembly.GetExecutingAssembly();
         static Dictionary<string, Type> typeCache = new Dictionary<string, Type>();
         public static bool NoCache = false;
 
diff --git a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Interface/IDeleteable.cs b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Interface/IDeleteable.cs
index e50a40e44..db3006695 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Interface/IDeleteable.cs
+++ b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Interface/IDeleteable.cs
@@ -32,6 +32,7 @@ namespace SqlSugar
         IDeleteable<T> WhereColumns(Expression<Func<T, object>> columns);
         IDeleteable<T> EnableDiffLogEvent(object businessData = null);
         IDeleteable<T> RemoveDataCache();
+        IDeleteable<T> RemoveDataCache(string likeString);
         KeyValuePair<string, List<SugarParameter>> ToSql();
         void AddQueue();
     }
diff --git a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Interface/IQueryable.cs b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Interface/IQueryable.cs
index 1cfce868c..597655774 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Interface/IQueryable.cs
+++ b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Interface/IQueryable.cs
@@ -14,6 +14,8 @@ namespace SqlSugar
         SqlSugarProvider Context { get; set; }
         ISqlBuilder SqlBuilder { get; set; }
         QueryBuilder QueryBuilder { get; set; }
+        bool IsCache { get; set; }
+        int CacheTime { get; set; }
         ISugarQueryable<T> Clone();
         ISugarQueryable<T> AS<T2>(string tableName);
         ISugarQueryable<T> AS(string tableName);
diff --git a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Interface/ISqlSugarClient.cs b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Interface/ISqlSugarClient.cs
index 08b959f95..a0999fd0a 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Interface/ISqlSugarClient.cs
+++ b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Interface/ISqlSugarClient.cs
@@ -160,7 +160,11 @@ namespace SqlSugar
         IUpdateable<T> Updateable<T>(Expression<Func<T, T>> columns) where T : class, new();
         IUpdateable<T> Updateable<T>(List<T> UpdateObjs) where T : class, new();
         IUpdateable<T> Updateable<T>(T UpdateObj) where T : class, new();
-        IUpdateable<T> Updateable<T>(T[] UpdateObjs) where T : class, new(); 
+        IUpdateable<T> Updateable<T>(T[] UpdateObjs) where T : class, new();
+        #endregion
+
+        #region Cache
+        SugarCacheProvider DataCache { get; }
         #endregion
     }
 }
\ No newline at end of file
diff --git a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Interface/IUpdateable.cs b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Interface/IUpdateable.cs
index fa2aa7359..74488fd9e 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Interface/IUpdateable.cs
+++ b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Interface/IUpdateable.cs
@@ -87,6 +87,7 @@ namespace SqlSugar
         IUpdateable<T> EnableDiffLogEvent(object businessData = null);
         IUpdateable<T> ReSetValue(Expression<Func<T, bool>> setValueExpression);
         IUpdateable<T> RemoveDataCache();
+        IUpdateable<T> RemoveDataCache(string likeString);
         IUpdateable<T> CallEntityMethod(Expression<Action<T>> method);
         KeyValuePair<string,List<SugarParameter>> ToSql();
         void AddQueue();
diff --git a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Interface/Insertable.cs b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Interface/Insertable.cs
index 431c35071..11402f753 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Interface/Insertable.cs
+++ b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Interface/Insertable.cs
@@ -36,6 +36,7 @@ namespace SqlSugar
 
         IInsertable<T> EnableDiffLogEvent(object businessData = null);
         IInsertable<T> RemoveDataCache();
+        IInsertable<T> RemoveDataCache(string likeString);
         KeyValuePair<string, List<SugarParameter>> ToSql();
         SqlServerBlueCopy UseSqlServer();
         MySqlBlueCopy<T> UseMySql();
diff --git a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Realization/MySql/SqlBuilder/MySqlBlueCopy.cs b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Realization/MySql/SqlBuilder/MySqlBlueCopy.cs
index e301c2761..3c9dfc489 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Realization/MySql/SqlBuilder/MySqlBlueCopy.cs
+++ b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Realization/MySql/SqlBuilder/MySqlBlueCopy.cs
@@ -25,13 +25,12 @@ namespace SqlSugar
             this.Builder = builder;
             this.Entitys = entitys;
         }
-        public bool ExecuteBlueCopy(string chara) 
+        public bool ExecuteBlueCopy(string characterSet) 
         {
-            this.Chara = chara;
+            this.Chara = characterSet;
             return ExecuteBlueCopy();
         }
 
-
         public bool ExecuteBlueCopy()
         {
             var IsBulkLoad = false;
@@ -61,9 +60,9 @@ namespace SqlSugar
                     var name = p.Name;
                     if (entity.Columns.Any(it => it.PropertyName == name))
                     {
-                        name=entity.Columns.First(it => it.PropertyName == name).DbColumnName;
+                        name = entity.Columns.First(it => it.PropertyName == name).DbColumnName;
                     }
-                    row[name] = p.GetValue(item, null);
+                    row[name] = GetValue(p, item);
                 });
                 dt.Rows.Add(row);
             }
@@ -75,7 +74,7 @@ namespace SqlSugar
             }
             var fileName = dllPath + "\\" + Guid.NewGuid().ToString() + ".csv";
             var dataTableToCsv = DataTableToCsvString(dt);
-            File.WriteAllText(fileName, dataTableToCsv, Encoding.UTF8);
+            File.WriteAllText(fileName, dataTableToCsv, new UTF8Encoding(false));
             MySqlConnection conn = this.Context.Ado.Connection as MySqlConnection;
             try
             {
@@ -112,29 +111,30 @@ namespace SqlSugar
             return IsBulkLoad; ;
         }
 
+        public Task<bool> ExecuteBlueCopyAsync()
+        {
+            return Task.FromResult(ExecuteBlueCopy());
+        }
+
+        public Task<bool> ExecuteBlueCopyAsync(string characterSet)
+        {
+            this.Chara = characterSet;
+            return Task.FromResult(ExecuteBlueCopy());
+        }
+
+        #region  Helper
         private string GetChara()
         {
             if (this.Chara == null)
             {
                 return "UTF8";
             }
-            else 
+            else
             {
                 return this.Chara;
             }
         }
 
-        public Task<bool> ExecuteBlueCopyAsync()
-        {
-            return Task.FromResult(ExecuteBlueCopy());
-        }
-
-        public Task<bool> ExecuteBlueCopyAsync(string chara)
-        {
-            this.Chara = chara;
-            return Task.FromResult(ExecuteBlueCopy());
-        }
-
         private void CloseDb()
         {
             if (this.Context.CurrentConnectionConfig.IsAutoCloseConnection && this.Context.Ado.Transaction == null)
@@ -170,5 +170,21 @@ namespace SqlSugar
             }
             return sb.ToString();
         }
+
+
+        private static object GetValue(PropertyInfo p, T item)
+        {
+            var result= p.GetValue(item, null);
+            if (result != null && UtilMethods.GetUnderType(p.PropertyType) == UtilConstants.BoolType) 
+            {
+                if (result.ObjToBool() == false) 
+                {
+                    result = null;
+                }
+            }
+            return result;
+        }
+
+        #endregion
     }
 }
\ No newline at end of file
diff --git a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Realization/SqlServer/SqlBuilder/SqlServerQueryBuilder.cs b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Realization/SqlServer/SqlBuilder/SqlServerQueryBuilder.cs
index 141d374bb..ca7da927c 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Realization/SqlServer/SqlBuilder/SqlServerQueryBuilder.cs
+++ b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Realization/SqlServer/SqlBuilder/SqlServerQueryBuilder.cs
@@ -28,7 +28,7 @@ namespace SqlSugar
             {
                 this.OrderByValue = this.PartitionByValue + this.OrderByValue;
             }
-            var isFirst = (Skip == 0 || Skip == null) && Take == 1;
+            var isFirst = (Skip == 0 || Skip == null) && Take == 1&&DisableTop==false;
             var isRowNumber = (Skip != null || Take != null) && !isFirst;
             var rowNumberString = string.Format(",ROW_NUMBER() OVER({0}) AS RowIndex ", GetOrderByString);
             string groupByValue = GetGroupByString + HavingInfos;
diff --git a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/SqlSugarClient.cs b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/SqlSugarClient.cs
index 2cd933a45..cd962b622 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/SqlSugarClient.cs
+++ b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/SqlSugarClient.cs
@@ -718,6 +718,13 @@ namespace SqlSugar
 
         #endregion
 
+        #region Cache
+        public SugarCacheProvider DataCache 
+        { 
+            get { return this.Context.DataCache; } 
+        }
+        #endregion
+
         #region Other method
         public DateTime GetDate()
         {