diff --git a/Src/Asp.Net/SqlSugar/Realization/PostgreSQL/DbMaintenance/PostgreSQLDbMaintenance.cs b/Src/Asp.Net/SqlSugar/Realization/PostgreSQL/DbMaintenance/PostgreSQLDbMaintenance.cs
index 667a9e4c4..5a9fa2516 100644
--- a/Src/Asp.Net/SqlSugar/Realization/PostgreSQL/DbMaintenance/PostgreSQLDbMaintenance.cs
+++ b/Src/Asp.Net/SqlSugar/Realization/PostgreSQL/DbMaintenance/PostgreSQLDbMaintenance.cs
@@ -385,7 +385,7 @@ namespace SqlSugar
         public override List<DbColumnInfo> GetColumnInfosByTableName(string tableName, bool isCache = true)
         {
             var result= base.GetColumnInfosByTableName(tableName.TrimEnd('"').TrimStart('"').ToLower(), isCache);
-            if (result == null && result.Count() == 0)
+            if (result == null || result.Count() == 0)
             {
                 result = base.GetColumnInfosByTableName(tableName, isCache);
             }
diff --git a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Realization/PostgreSQL/DbMaintenance/PostgreSQLDbMaintenance.cs b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Realization/PostgreSQL/DbMaintenance/PostgreSQLDbMaintenance.cs
index 667a9e4c4..5a9fa2516 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Realization/PostgreSQL/DbMaintenance/PostgreSQLDbMaintenance.cs
+++ b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Realization/PostgreSQL/DbMaintenance/PostgreSQLDbMaintenance.cs
@@ -385,7 +385,7 @@ namespace SqlSugar
         public override List<DbColumnInfo> GetColumnInfosByTableName(string tableName, bool isCache = true)
         {
             var result= base.GetColumnInfosByTableName(tableName.TrimEnd('"').TrimStart('"').ToLower(), isCache);
-            if (result == null && result.Count() == 0)
+            if (result == null || result.Count() == 0)
             {
                 result = base.GetColumnInfosByTableName(tableName, isCache);
             }