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include/master-slave.inc
[connection master]
connection master;
CREATE FUNCTION hello (str CHAR(20)) RETURNS CHAR(50) DETERMINISTIC RETURN
CONCAT('Hello, ', str, '!');
CREATE FUNCTION hello (str CHAR(20)) RETURNS CHAR(50) DETERMINISTIC RETURN
CONCAT('Hello, ', str, '!');
ERROR 42000: FUNCTION hello already exists
connection slave;
SHOW CREATE FUNCTION hello;
Function sql_mode Create Function character_set_client collation_connection Database Collation
hello STRICT_TRANS_TABLES,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION CREATE DEFINER=`root`@`localhost` FUNCTION `hello`(str CHAR(20)) RETURNS char(50) CHARSET utf8mb4 COLLATE utf8mb4_uca1400_ai_ci
DETERMINISTIC
RETURN
CONCAT('Hello, ', str, '!') latin1 latin1_swedish_ci utf8mb4_uca1400_ai_ci
connection master;
CREATE OR REPLACE FUNCTION IF NOT EXISTS hello (str CHAR(20)) RETURNS CHAR(50) DETERMINISTIC RETURN
CONCAT('Hello, ', str, '!');
ERROR HY000: Incorrect usage of OR REPLACE and IF NOT EXISTS
CREATE OR REPLACE FUNCTION hello (str CHAR(20)) RETURNS CHAR(50) DETERMINISTIC RETURN
CONCAT('Hello, ', str, '!');
SELECT hello('master');
hello('master')
Hello, master!
connection slave;
SELECT hello('slave');
hello('slave')
Hello, slave!
connection master;
CREATE FUNCTION IF NOT EXISTS hello (str CHAR(20)) RETURNS CHAR(50) DETERMINISTIC RETURN
CONCAT('Hello, ', str, '!');
Warnings:
Note 1304 FUNCTION hello already exists
CREATE OR REPLACE FUNCTION bye (str CHAR(20)) RETURNS CHAR(50) DETERMINISTIC RETURN
CONCAT('Bye, ', str, '!');
SELECT hello('master');
hello('master')
Hello, master!
SELECT bye('master');
bye('master')
Bye, master!
connection slave;
SELECT hello('slave');
hello('slave')
Hello, slave!
SELECT bye('slave');
bye('slave')
Bye, slave!
connection master;
DROP FUNCTION hello;
DROP FUNCTION IF EXISTS bye;
connection slave;
DROP FUNCTION hello;
ERROR 42000: FUNCTION test.hello does not exist
DROP FUNCTION IF EXISTS bye;
Warnings:
Note 1305 FUNCTION test.bye does not exist
include/rpl_end.inc
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