From f6d2fc5c2f724e136fdecfb9c06595655286b9c1 Mon Sep 17 00:00:00 2001
From: daiao <358551898@qq.com>
Date: Thu, 13 Feb 2020 15:36:42 +0800
Subject: [PATCH] 1

---
 lib/tasks/statistic_subject_info.rake | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/tasks/statistic_subject_info.rake b/lib/tasks/statistic_subject_info.rake
index 9c96f468b..5a7e0f9eb 100644
--- a/lib/tasks/statistic_subject_info.rake
+++ b/lib/tasks/statistic_subject_info.rake
@@ -28,7 +28,7 @@ namespace :subjects do
           sql = "REPLACE INTO subject_records(#{column_value}) VALUES #{str.join(",")}"
           puts sql
           ActiveRecord::Base.connection.execute sql
-          str = ""
+          str = []
           buffer_size = 0
         end
       end