清除master logs的结果消息有误

[Liu 刘 Yan 研]

有两个二进制日志文件，用 purge master logs 命令删除了一个，但是显示的是：受影响的行数为 0

Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 99 to server version: 5.0.24-community-nt-log

Type 'help;' or '\h' for help. Type '\c' to clear the buffer.

mysql> show master logs;
+------------------+------------+
| Log_name         | File_size  |
+------------------+------------+
| mysql-bin.000026 | 1073742051 |
| mysql-bin.000027 |  675531614 |
+------------------+------------+
2 rows in set (0.03 sec)

mysql> purge master logs to 'mysql-bin.000027';
Query OK, 0 rows affected (0.31 sec)       <------------- 这里 ---------
mysql> show master logs;
+------------------+-----------+
| Log_name         | File_size |
+------------------+-----------+
| mysql-bin.000027 | 675627704 |
+------------------+-----------+
1 row in set (0.00 sec)

mysql>