1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
|
#
# MDEV-7285 SERVER: CREATE OR REPLACE and CREATE IF NOT EXISTS
#
CREATE SERVER IF NOT EXISTS server1 FOREIGN DATA WRAPPER mysql OPTIONS (USER 'user1', HOST 'localhost', DATABASE 'test0');
SELECT server_name, username, db FROM mysql.servers;
server_name username db
server1 user1 test0
CREATE SERVER IF NOT EXISTS server1 FOREIGN DATA WRAPPER mysql OPTIONS (USER 'user2', HOST 'localhost', DATABASE 'test1');
Warnings:
Note 1476 The foreign server, server1, you are trying to create already exists.
SELECT server_name, username, db FROM mysql.servers;
server_name username db
server1 user1 test0
CREATE OR REPLACE SERVER server1 FOREIGN DATA WRAPPER mysql OPTIONS (USER 'user3', HOST 'localhost', DATABASE 'test2');
SELECT server_name, username, db FROM mysql.servers;
server_name username db
server1 user3 test2
DROP SERVER IF EXISTS server1;
SELECT server_name, username, db FROM mysql.servers;
server_name username db
DROP SERVER IF EXISTS server1;
CREATE SERVER server_1 FOREIGN DATA WRAPPER mysql OPTIONS (USER 'mysqltest_1', HOST 'localhost', DATABASE 'test0');
CREATE SERVER server_1 FOREIGN DATA WRAPPER mysql OPTIONS (USER 'mysqltest_1', HOST 'localhost', DATABASE 'test1');
ERROR HY000: The foreign server, server_1, you are trying to create already exists.
CREATE SERVER IF NOT EXISTS server_1 FOREIGN DATA WRAPPER mysql OPTIONS (USER 'mysqltest_1', HOST 'localhost', DATABASE 'test2');
Warnings:
Note 1476 The foreign server, server_1, you are trying to create already exists.
SELECT server_name, username, db FROM mysql.servers;
server_name username db
server_1 mysqltest_1 test0
CREATE OR REPLACE SERVER IF NOT EXISTS server_1 FOREIGN DATA WRAPPER mysql OPTIONS (USER 'mysqltest_1', HOST 'localhost', DATABASE 'test3');
ERROR HY000: Incorrect usage of OR REPLACE and IF NOT EXISTS
CREATE OR REPLACE SERVER server_1 FOREIGN DATA WRAPPER mysql OPTIONS (USER 'mysqltest_1', HOST 'localhost', DATABASE 'test4');
SELECT server_name, username, db FROM mysql.servers;
server_name username db
server_1 mysqltest_1 test4
DROP SERVER server_1;
|