MySQL 5.7.13 的一个BUG

> SHOW CREATE TABLE INFORMATION_SCHEMA.GLOBAL_VARIABLES\G *************************** 1. row *************************** Table: GLOBAL_VARIABLES Create Table: CREATE TEMPORARY TABLE `GLOBAL_VARIABLES` ( `VARIABLE_NAME` varchar(64) NOT NULL DEFAULT ‘‘, `VARIABLE_VALUE` varchar(1024) DEFAULT NULL ) ENGINE=MEMORY DEFAULT CHARSET=utf8 1 row in set (0.00 sec) When I set log_bin as follows: log-bin=?? It correctly sets the files on disk: -rw-rw---- 1 rlowe 1278 174B Aug 2 08:34 ??.000001 -rw-rw---- 1 rlowe 1278 174B Aug 2 08:40 ??.000002 -rw-rw---- 1 rlowe 1278 151B Aug 2 08:53 ??.000003 -rw-rw---- 1 rlowe 1278 42B Aug 2 08:53 ??.index But I cannot accurately retrieve log_bin_basename: > SHOW GLOBAL VARIABLES LIKE ‘log_bin_basename‘; +------------------+-----------------------------------------------------------+ | Variable_name | Value | +------------------+-----------------------------------------------------------+ | log_bin_basename | /Users/rlowe/sandboxes/rsandbox_mysql-5_6_23/master/data/ | +------------------+-----------------------------------------------------------+ 1 row in set, 1 warning (0.00 sec) > SHOW WARNINGS; +---------+------+---------------------------------------------------------------------------------+ | Level | Code | Message | +---------+------+---------------------------------------------------------------------------------+ | Warning | 1366 | Incorrect string value: ‘\xF0\x9F\x92\xA9‘ for column ‘VARIABLE_VALUE‘ at row 1 | +---------+------+---------------------------------------------------------------------------------+ 1 row in set (0.00 sec) How to repeat: Follow the steps above Suggested fix: Disallow utf8mb4 characters when setting log_bin OR change the character set of GLOBAL_VARIABLES [2 Aug 16:20] Umesh Umesh Hello Lowe Ryan, Thank you for the report. Thanks, Umesh

 

此致，敬礼

 

虽然没有什么用，但一种爽的感觉悠然而生，我想这就是程序员精神。

MySQL 5.7.13 的一个BUG

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