Bug #74750 System locale ignored

Description:
The system locale is ignored when running a client utility.

How to repeat:
$ mysql
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 5.7.5-m15 MySQL Community Server (GPL)

Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> create table foo(id int, val tinyint default -1);
ERROR 1046 (3D000): No database selected
mysql> select @@lc_messages;
+---------------+
| @@lc_messages |
+---------------+
| en_US         |
+---------------+
1 row in set (0,00 sec)

mysql> \! locale
LANG=nl_NL.utf8
LANGUAGE=nl_NL:nl
LC_CTYPE="nl_NL.utf8"
LC_NUMERIC="nl_NL.utf8"
LC_TIME="nl_NL.utf8"
LC_COLLATE="nl_NL.utf8"
LC_MONETARY="nl_NL.utf8"
LC_MESSAGES="nl_NL.utf8"
LC_PAPER="nl_NL.utf8"
LC_NAME="nl_NL.utf8"
LC_ADDRESS="nl_NL.utf8"
LC_TELEPHONE="nl_NL.utf8"
LC_MEASUREMENT="nl_NL.utf8"
LC_IDENTIFICATION="nl_NL.utf8"
LC_ALL=nl_NL.utf8
mysql> SET lc_messages='nl_NL';
Query OK, 0 rows affected (0,00 sec)

mysql> create table foo(id int, val tinyint default -1);
ERROR 1046 (3D000): Geen database geselecteerd

Suggested fix:
Use the system locale if no locale was set explicitly in the client configuration.

Hello Daniël,

Thank you for the report.
Observed similar case with 5.6.23.

###

[root@cluster-repo mysql-advanced-5.6.23]# LANG=nl_NL.utf8
[root@cluster-repo mysql-advanced-5.6.23]# bin/mysql -u root -p -S /data/ushastry/server/mysql-advanced-5.6.23/run/master.sock
Enter password:
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 524945
Server version: 5.6.23-enterprise-commercial-advanced-log MySQL Enterprise Server - Advanced Edition (Commercial)

Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

[(none)]> \! locale
LANG=nl_NL.utf8
LC_CTYPE="nl_NL.utf8"
LC_NUMERIC="nl_NL.utf8"
LC_TIME="nl_NL.utf8"
LC_COLLATE="nl_NL.utf8"
LC_MONETARY="nl_NL.utf8"
LC_MESSAGES="nl_NL.utf8"
LC_PAPER="nl_NL.utf8"
LC_NAME="nl_NL.utf8"
LC_ADDRESS="nl_NL.utf8"
LC_TELEPHONE="nl_NL.utf8"
LC_MEASUREMENT="nl_NL.utf8"
LC_IDENTIFICATION="nl_NL.utf8"
LC_ALL=
[(none)]> select @@lc_messages;
+---------------+
| @@lc_messages |
+---------------+
| en_US         |
+---------------+
1 row in set (0,00 sec)

[(none)]> create table foo(id int, val tinyint default -1);
ERROR 1046 (3D000): No database selected
[(none)]>
[(none)]> SET lc_messages='nl_NL';
Query OK, 0 rows affected (0,00 sec)

[(none)]> create table foo(id int, val tinyint default -1);
ERROR 1046 (3D000): Geen database geselecteerd

Thanks,
Umesh

Marking Bug #78456 as duplicate