改进吞吐率计算

2026-07-06 07:02:47 +08:00 · 2016-04-03 20:01:17 +08:00
parent ba7e7387ba
commit 45e593ec08
6 changed files with 6 additions and 6 deletions
--- a/library/think/db/driver/Mysql.php
+++ b/library/think/db/driver/Mysql.php
@@ -103,7 +103,7 @@ class Mysql extends Driver
            list($field, $name) = explode($key, '$.');
            $key                = 'jsn_extract(' . $field . ', \'$.\'.' . $name . ')';
        }
-        if (!preg_match('/[,\'\"\*\(\)`.\s]/', $key)) {
+        if ($key && !preg_match('/[,\'\"\*\(\)`.\s]/', $key)) {
            $key = '`' . $key . '`';
        }
        return $key;