diff --git a/Src/Asp.Net/SqlSugar/Abstract/InsertableProvider/InsertableProvider.cs b/Src/Asp.Net/SqlSugar/Abstract/InsertableProvider/InsertableProvider.cs
index 7154e8959..65fc04ab7 100644
--- a/Src/Asp.Net/SqlSugar/Abstract/InsertableProvider/InsertableProvider.cs
+++ b/Src/Asp.Net/SqlSugar/Abstract/InsertableProvider/InsertableProvider.cs
@@ -408,7 +408,7 @@ namespace SqlSugar
                 return await this.Context.Queryable<T>().WhereClassByPrimaryKey(data).IncludesAllFirstLayer().FirstAsync();
             }
         }
-        public async Task<bool> ExecuteCommandIdentityIntoEntityAsync()
+        public virtual async Task<bool> ExecuteCommandIdentityIntoEntityAsync()
         {
             var result = InsertObjs.First();
             var identityKeys = GetIdentityKeys();
diff --git a/Src/Asp.Net/SqlSugar/Abstract/QueryableProvider/QueryableHelper.cs b/Src/Asp.Net/SqlSugar/Abstract/QueryableProvider/QueryableHelper.cs
index 1c945ee94..1a6cb2c80 100644
--- a/Src/Asp.Net/SqlSugar/Abstract/QueryableProvider/QueryableHelper.cs
+++ b/Src/Asp.Net/SqlSugar/Abstract/QueryableProvider/QueryableHelper.cs
@@ -1531,7 +1531,7 @@ namespace SqlSugar
             //return sql;
         }
 
-        internal JoinQueryInfo GetJoinInfo(Expression joinExpression, JoinType joinType)
+        public virtual JoinQueryInfo GetJoinInfo(Expression joinExpression, JoinType joinType)
         {
             QueryBuilder.CheckExpressionNew(joinExpression, "Join");
             QueryBuilder.JoinExpression = joinExpression;
diff --git a/Src/Asp.Net/SqlSugar/Abstract/UpdateProvider/UpdateableHelper.cs b/Src/Asp.Net/SqlSugar/Abstract/UpdateProvider/UpdateableHelper.cs
index dd7966e2a..c0571cca8 100644
--- a/Src/Asp.Net/SqlSugar/Abstract/UpdateProvider/UpdateableHelper.cs
+++ b/Src/Asp.Net/SqlSugar/Abstract/UpdateProvider/UpdateableHelper.cs
@@ -3,6 +3,7 @@ using System.Collections.Generic;
 using System.Data;
 using System.Linq;
 using System.Linq.Expressions;
+using System.Runtime.CompilerServices;
 using System.Text;
 using System.Text.RegularExpressions;
 using System.Threading.Tasks;
@@ -392,7 +393,8 @@ namespace SqlSugar
                     TableId = i,
                     UpdateSql = column.UpdateSql,
                     UpdateServerTime = column.UpdateServerTime,
-                    IsPrimarykey=column.IsPrimarykey
+                    IsPrimarykey=column.IsPrimarykey,
+                    DataType=column.DataType
                 };
                 if (column.ForOwnsOnePropertyInfo != null)
                 {
@@ -440,6 +442,8 @@ namespace SqlSugar
             if (column.ForOwnsOnePropertyInfo != null)
             {
                 var owsPropertyValue = column.ForOwnsOnePropertyInfo.GetValue(item, null);
+                if (owsPropertyValue == null)
+                    return null;
                 return column.PropertyInfo.GetValue(owsPropertyValue, null);
             }
             else
diff --git a/Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/MemberInitExpressionResolve.cs b/Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/MemberInitExpressionResolve.cs
index 0384e5d7d..5f66b7fe3 100644
--- a/Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/MemberInitExpressionResolve.cs
+++ b/Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/MemberInitExpressionResolve.cs
@@ -55,11 +55,10 @@ namespace SqlSugar
                 var item = memberAssignment.Expression;
                 item = ExpressionTool.RemoveConvert(item);
                 //Column IsJson Handler
-                if (memberAssignment.Member.CustomAttributes != null)
-                {
-                    var customAttribute = memberAssignment.Member.GetCustomAttribute<SugarColumn>();
-
-                    if (customAttribute?.IsJson ?? false)
+                if (entityMaintenance!=null)
+                { 
+                    EntityColumnInfo columnInfo = entityMaintenance.GetEntityInfo(type).Columns.FirstOrDefault(it => it.PropertyName == memberAssignment.Member.Name);
+                    if (columnInfo?.IsJson ?? false)
                     {
                         var paramterValue = ExpressionTool.DynamicInvoke(item);
                         var parameterName = AppendParameter(new SerializeService().SerializeObject(paramterValue));
@@ -72,6 +71,15 @@ namespace SqlSugar
 
                         continue;
                     }
+                    else if (UtilMethods.IsParameterConverter(columnInfo))
+                    { 
+                        var value = ExpressionTool.DynamicInvoke(item);
+                        var p=UtilMethods.GetParameterConverter(this.Context.ParameterIndex,this.Context.SugarContext.Context, value, memberAssignment.Expression, columnInfo);
+                        this.Context.Result.Append(base.Context.GetEqString(memberName, p.ParameterName));
+                        this.Context.ParameterIndex++;
+                        this.Context.Parameters.Add(p);
+                        continue;
+                    }
                 }
 
                 if ((item is MemberExpression) && ((MemberExpression)item).Expression == null)
diff --git a/Src/Asp.Net/SqlSugar/ExpressionsToSql/Subquery/SubResolve.cs b/Src/Asp.Net/SqlSugar/ExpressionsToSql/Subquery/SubResolve.cs
index c9deae114..bd3686681 100644
--- a/Src/Asp.Net/SqlSugar/ExpressionsToSql/Subquery/SubResolve.cs
+++ b/Src/Asp.Net/SqlSugar/ExpressionsToSql/Subquery/SubResolve.cs
@@ -292,6 +292,10 @@ namespace SqlSugar
             {
                 isubList.RemoveAll(it => it is SubTake);
             }
+            if (isJoin == false && isSubSubQuery&&this.context.CurrentShortName==null) 
+            {
+                this.context.CurrentShortName=ExpressionTool.GetParameters(allMethods.FirstOrDefault()).FirstOrDefault().Name;
+            }
             List<string> result = isubList.Select(it =>
             {
                 it.HasWhere = isHasWhere;