Update Deleteable by subquery

Src/Asp.NetCore2/SqlSugar/Abstract/DeleteProvider/DeleteableProvider.cs

@@ -226,6 +226,11 @@ namespace SqlSugar
             var expResult = DeleteBuilder.GetExpressionValue(expression, ResolveExpressType.WhereSingle);
             var whereString = expResult.GetResultString();
             if (expression.ToString().Contains("Subqueryable()")) {
+                if (expression.Parameters.First().Type == typeof(T))
+                {
+                    var tableName = this.SqlBuilder.GetTranslationColumnName(this.EntityInfo.DbTableName);
+                    whereString = whereString.Replace(tableName, $"( SELECT * FROM {tableName})  ");
+                }
                 whereString = whereString.Replace(this.SqlBuilder.GetTranslationColumnName(expression.Parameters.First().Name) + ".", this.SqlBuilder.GetTranslationTableName(this.EntityInfo.DbTableName) + ".");
             }
             else if (expResult.IsNavicate)