refactor: 优化数据库导出速度

mayfly_go_web/src/views/ops/db/DbList.vue

@@ -342,6 +342,7 @@ const DbEdit = defineAsyncComponent(() => import('./DbEdit.vue'));
 const CreateTable = defineAsyncComponent(() => import('./CreateTable.vue'));
 
 const perms = {
+    base: 'db',
     saveDb: 'db:save',
     delDb: 'db:del',
 };
@@ -357,7 +358,7 @@ const columns = ref([
 ]);
 
 // 该用户拥有的的操作列按钮权限
-const actionBtns = hasPerms([perms.saveDb]);
+const actionBtns = hasPerms([perms.base, perms.saveDb]);
 const actionColumn = TableColumn.new('action', '操作').isSlot().setMinWidth(150).fixedRight().alignCenter();
 
 const pageTableRef: any = ref(null);

server/internal/db/application/db.go

@@ -313,13 +313,7 @@ func selectDataByDb(db *sql.DB, selectSql string) ([]string, []map[string]any, e
 }
 
 func walkTableRecord(db *sql.DB, selectSql string, walk func(record map[string]any, columns []string)) error {
-	tx, err := db.Begin()
-	if err != nil {
-		return err
-	}
-	defer tx.Rollback()
-
-	rows, err := tx.Query(selectSql)
+	rows, err := db.Query(selectSql)
 	if err != nil {
 		return err
 	}
@@ -362,9 +356,6 @@ func walkTableRecord(db *sql.DB, selectSql string, walk func(record map[string]a
 		walk(rowData, colNames)
 	}
 
-	if err := tx.Commit(); err != nil {
-		return err
-	}
 	return nil
 }