diff --git a/OrmTest/UnitTest/Query/SelectQuery.cs b/OrmTest/UnitTest/Query/SelectQuery.cs
index 9497eac6d..c38ea964b 100644
--- a/OrmTest/UnitTest/Query/SelectQuery.cs
+++ b/OrmTest/UnitTest/Query/SelectQuery.cs
@@ -45,7 +45,8 @@ namespace OrmTest.UnitTest
                 var list = db.Queryable<Student, School,School>((st, sc,sc2) => new object[] {
                           JoinType.Left,st.SchoolId==sc.Id,
                           JoinType.Left,sc2.Id==sc.Id
-                }).Where(st => st.Id > 0).ToList();
+                }).Where(st => st.Id > 0)
+                .Select<School>((st) =>new School() { Id=st.Id}).ToList();
 
                 var list3 = db.Queryable("Student", "st")
                  .AddJoinInfo("School", "sh", "sh.id=st.schoolid")
diff --git a/SqlSugar/ExpressionsToSql/ExpressionContext.cs b/SqlSugar/ExpressionsToSql/ExpressionContext.cs
index a1671cae4..5bac334fc 100644
--- a/SqlSugar/ExpressionsToSql/ExpressionContext.cs
+++ b/SqlSugar/ExpressionsToSql/ExpressionContext.cs
@@ -82,11 +82,11 @@ namespace SqlSugar
         }
         public virtual string GetAsString(string asName, string fieldValue)
         {
-            return string.Format(" [{0}] {1} [{2}] ", fieldValue, "AS", asName);
+            return string.Format(" {0} {1} [{2}] ", fieldValue, "AS", asName);
         }
         public virtual string GetAsString(string asName, string fieldValue,string fieldShortName)
         {
-            return string.Format(" [{0}].[{1}] {2} [{3}] ", fieldShortName, fieldValue, "AS", asName);
+            return string.Format(" {0}.[{1}] {2} [{3}] ", fieldShortName, fieldValue, "AS", asName);
         }
         public virtual void Clear()
         {