diff --git a/core/backend/src/main/java/io/dataease/commons/utils/AuthUtils.java b/core/backend/src/main/java/io/dataease/commons/utils/AuthUtils.java
index 2360c19fa6..cf68b429d1 100644
--- a/core/backend/src/main/java/io/dataease/commons/utils/AuthUtils.java
+++ b/core/backend/src/main/java/io/dataease/commons/utils/AuthUtils.java
@@ -54,6 +54,10 @@ public class AuthUtils {
         return userDto;
     }
 
+    public static void setUser(CurrentUserDto user) {
+        USER_INFO.set(user);
+    }
+
     public static void setProxyUser(Long userId) {
         CurrentUserDto currentUserDto = proxyAuthService.queryCacheUserDto(userId);
         USER_INFO.set(currentUserDto);
diff --git a/core/backend/src/main/java/io/dataease/provider/datasource/JdbcProvider.java b/core/backend/src/main/java/io/dataease/provider/datasource/JdbcProvider.java
index 4aa9145a95..7dac712288 100644
--- a/core/backend/src/main/java/io/dataease/provider/datasource/JdbcProvider.java
+++ b/core/backend/src/main/java/io/dataease/provider/datasource/JdbcProvider.java
@@ -951,7 +951,7 @@ public class JdbcProvider extends DefaultJdbcProvider {
                 break;
             case pg:
                 PgConfiguration pgConfiguration = new Gson().fromJson(datasource.getConfiguration(), PgConfiguration.class);
-                if (!pgConfiguration.getDataBase().matches("^[0-9a-zA-Z_]{1,}$")) {
+                if (!pgConfiguration.getDataBase().matches("^[0-9a-zA-Z_.-]{1,}$")) {
                     throw new Exception("Invalid database name");
                 }
                 break;
diff --git a/core/backend/src/main/java/io/dataease/provider/query/pg/PgQueryProvider.java b/core/backend/src/main/java/io/dataease/provider/query/pg/PgQueryProvider.java
index a18e0cc6f7..d6d8859b84 100644
--- a/core/backend/src/main/java/io/dataease/provider/query/pg/PgQueryProvider.java
+++ b/core/backend/src/main/java/io/dataease/provider/query/pg/PgQueryProvider.java
@@ -988,13 +988,7 @@ public class PgQueryProvider extends QueryProvider {
     }
 
     public String getTotalCount(boolean isTable, String sql, Datasource ds) {
-        if (isTable) {
-            String schema = new Gson().fromJson(ds.getConfiguration(), JdbcConfiguration.class).getSchema();
-            String tableWithSchema = String.format(PgConstants.KEYWORD_TABLE, schema) + "." + String.format(PgConstants.KEYWORD_TABLE, sql);
-            return "SELECT COUNT(*) from " + tableWithSchema;
-        } else {
-            return null;
-        }
+        return null;
     }
 
     @Override
@@ -1007,7 +1001,7 @@ public class PgQueryProvider extends QueryProvider {
         if (ds != null) {
             String schema = new Gson().fromJson(ds.getConfiguration(), JdbcConfiguration.class).getSchema();
             String tableWithSchema = String.format(SqlServerSQLConstants.KEYWORD_TABLE, schema) + "." + String.format(SqlServerSQLConstants.KEYWORD_TABLE, table);
-            return MessageFormat.format("SELECT {0} FROM {1}  LIMIT DE_PAGE_SIZE OFFSET DE_OFFSET ", StringUtils.join(array, ","), tableWithSchema);
+            return MessageFormat.format("SELECT {0} FROM {1}  ", StringUtils.join(array, ","), tableWithSchema);
         } else {
             return MessageFormat.format("SELECT {0} FROM {1} ", StringUtils.join(array, ","), table);
         }
diff --git a/core/backend/src/main/java/io/dataease/service/datasource/DatasourceService.java b/core/backend/src/main/java/io/dataease/service/datasource/DatasourceService.java
index f9be6e411e..9ec9c435cc 100644
--- a/core/backend/src/main/java/io/dataease/service/datasource/DatasourceService.java
+++ b/core/backend/src/main/java/io/dataease/service/datasource/DatasourceService.java
@@ -181,7 +181,7 @@ public class DatasourceService {
         });
         if (!datasourceDTO.getType().equalsIgnoreCase(DatasourceTypes.api.toString())) {
             JdbcConfiguration configuration = new Gson().fromJson(datasourceDTO.getConfiguration(), JdbcConfiguration.class);
-            if (StringUtils.isNotEmpty(configuration.getCustomDriver()) && !configuration.getCustomDriver().equalsIgnoreCase("default")) {
+            if (StringUtils.isNotEmpty(configuration.getCustomDriver()) && !configuration.getCustomDriver().startsWith("default-")) {
                 datasourceDTO.setCalculationMode(DatasourceCalculationMode.DIRECT);
             }
             JSONObject jsonObject = JSONObject.parseObject(datasourceDTO.getConfiguration());
diff --git a/core/backend/src/main/java/io/dataease/service/exportCenter/ExportCenterService.java b/core/backend/src/main/java/io/dataease/service/exportCenter/ExportCenterService.java
index e2f8ddbb34..64a2a50575 100644
--- a/core/backend/src/main/java/io/dataease/service/exportCenter/ExportCenterService.java
+++ b/core/backend/src/main/java/io/dataease/service/exportCenter/ExportCenterService.java
@@ -322,7 +322,7 @@ public class ExportCenterService {
                 ChartViewDTO chartViewInfo = chartViewService.getData(request.getViewId(), componentFilterInfo);
                 List<Object[]> tableRow = (List) chartViewInfo.getData().get("sourceData");
                 request.setDetails(tableRow);
-                if("dataset".equals(request.getDownloadType())){
+                if ("dataset".equals(request.getDownloadType())) {
                     request.setHeader((String[]) chartViewInfo.getData().get("header"));
                     request.setExcelTypes((Integer[]) chartViewInfo.getData().get("dsTypes"));
                 }
@@ -388,7 +388,9 @@ public class ExportCenterService {
         String dataPath = exportData_path + exportTask.getId();
         File directory = new File(dataPath);
         boolean isCreated = directory.mkdir();
+        CurrentUserDto currentUserDto = AuthUtils.getUser();
         Future future = scheduledThreadPoolExecutor.submit(() -> {
+            AuthUtils.setUser(currentUserDto);
             try {
                 exportTask.setExportStatus("IN_PROGRESS");
                 exportTaskMapper.updateByPrimaryKey(exportTask);
@@ -414,7 +416,7 @@ public class ExportCenterService {
                 cellStyle.setFillForegroundColor(IndexedColors.GREY_25_PERCENT.getIndex());
                 //设置单元格填充样式(使用纯色背景颜色填充)
                 cellStyle.setFillPattern(FillPatternType.SOLID_FOREGROUND);
-                if ("table-info".equals(request.getViewType())||"dataset".equals(request.getDownloadType())) {
+                if ("table-info".equals(request.getViewType()) || "dataset".equals(request.getDownloadType())) {
                     exportTableDetails(request, wb, cellStyle, detailsSheet);
                 } else {
                     Boolean mergeHead = false;
@@ -542,7 +544,7 @@ public class ExportCenterService {
                 }
                 wb.close();
 
-                if (ObjectUtils.isNotEmpty(AuthUtils.getUser())) {
+                if (ObjectUtils.isNotEmpty(currentUserDto)) {
                     String viewId = request.getViewId();
                     ChartViewWithBLOBs chartViewWithBLOBs = chartViewService.get(viewId);
                     String pid = chartViewWithBLOBs.getSceneId();
@@ -1342,6 +1344,7 @@ public class ExportCenterService {
         map.put("data", jsonArray);
         return map;
     }
+
     private static final String LOG_RETENTION = "30";
 
     public void cleanLog() {