diff --git a/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/QueryableHelper.cs b/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/QueryableHelper.cs
index 16e096080..be15bbb22 100644
--- a/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/QueryableHelper.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/QueryableHelper.cs
@@ -1347,8 +1347,11 @@ namespace SqlSugar
             {
                 if (item.IsIgnore == false && !this.QueryBuilder.AutoAppendedColumns.Contains(item.PropertyName) && columnsResult.Any(it => it.PropertyName.EqualCase(item.PropertyName)) && !list.Any(it => it.EqualCase(item.PropertyName)))
                 {
-                    sql = $" {sql},{SqlBuilder.GetTranslationColumnName(parameterName)}.{SqlBuilder.GetTranslationColumnName(item.DbColumnName)} AS {SqlBuilder.GetTranslationColumnName(item.PropertyName)} ";
-                    this.QueryBuilder.AutoAppendedColumns.Add(item.PropertyName);
+                    if (!sql.Contains($"{SqlBuilder.GetTranslationColumnName(parameterName)}.{SqlBuilder.GetTranslationColumnName(item.DbColumnName)} AS {SqlBuilder.GetTranslationColumnName(item.PropertyName)}"))
+                    {
+                        sql = $" {sql},{SqlBuilder.GetTranslationColumnName(parameterName)}.{SqlBuilder.GetTranslationColumnName(item.DbColumnName)} AS {SqlBuilder.GetTranslationColumnName(item.PropertyName)} ";
+                        this.QueryBuilder.AutoAppendedColumns.Add(item.PropertyName);
+                    }
                 }
             }
             return sql;
@@ -1368,8 +1371,11 @@ namespace SqlSugar
             {
                 if (item.IsIgnore == false &&!this.QueryBuilder.AutoAppendedColumns.Contains(item.PropertyName)&& columnsResult.Any(it => it.PropertyName.EqualCase(item.PropertyName))&& !list.Any(it=>it.EqualCase(item.PropertyName)))
                 {
-                    sql = $" {sql},{SqlBuilder.GetTranslationColumnName(item.DbColumnName)} AS {SqlBuilder.GetTranslationColumnName(item.PropertyName)} ";
-                    this.QueryBuilder.AutoAppendedColumns.Add(item.PropertyName);
+                    if (!sql.Contains($"{SqlBuilder.GetTranslationColumnName(item.DbColumnName)} AS {SqlBuilder.GetTranslationColumnName(item.PropertyName)}"))
+                    {
+                        sql = $" {sql},{SqlBuilder.GetTranslationColumnName(item.DbColumnName)} AS {SqlBuilder.GetTranslationColumnName(item.PropertyName)} ";
+                        this.QueryBuilder.AutoAppendedColumns.Add(item.PropertyName);
+                    }
                 }
             }
             return sql;
@@ -1393,7 +1399,10 @@ namespace SqlSugar
             {
                 if (item.IsIgnore == false && columnsResult.Any(it => it.PropertyName.EqualCase(item.PropertyName)) && !sql.ToLower().Contains(SqlBuilder.GetTranslationColumnName(item.PropertyName).ToLower()))
                 {
-                    sql = $" {sql},{parameterName}.{SqlBuilder.GetTranslationColumnName(item.DbColumnName)} AS {SqlBuilder.GetTranslationColumnName(item.PropertyName)} ";
+                    if (!sql.Contains($"{parameterName}.{SqlBuilder.GetTranslationColumnName(item.DbColumnName)} AS {SqlBuilder.GetTranslationColumnName(item.PropertyName)}"))
+                    {
+                        sql = $" {sql},{parameterName}.{SqlBuilder.GetTranslationColumnName(item.DbColumnName)} AS {SqlBuilder.GetTranslationColumnName(item.PropertyName)} ";
+                    }
                 }
             }