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CREATE FUNCTION IF NOT EXISTS metaphon RETURNS STRING SONAME "UDF_EXAMPLE_LIB";
SELECT ret FROM mysql.func WHERE name like 'metaphon';
ret
0
CREATE FUNCTION metaphon RETURNS INT SONAME "$UDF_EXAMPLE_SO";
ERROR HY000: Function 'metaphon' already exists
SELECT ret FROM mysql.func WHERE name like 'metaphon';
ret
0
CREATE FUNCTION IF NOT EXISTS metaphon RETURNS REAL SONAME "UDF_EXAMPLE_LIB";
Warnings:
Note 1125 Function 'metaphon' already exists
SELECT ret FROM mysql.func WHERE name like 'metaphon';
ret
0
DROP FUNCTION IF EXISTS metaphon;
CREATE FUNCTION IF NOT EXISTS metaphon RETURNS REAL SONAME "UDF_EXAMPLE_LIB";
SELECT ret FROM mysql.func WHERE name like 'metaphon';
ret
1
CREATE OR REPLACE FUNCTION IF NOT EXISTS metaphon RETURNS STRING SONAME "UDF_EXAMPLE_LIB";
ERROR HY000: Incorrect usage of OR REPLACE and IF NOT EXISTS
SELECT ret FROM mysql.func WHERE name like 'metaphon';
ret
1
CREATE OR REPLACE FUNCTION metaphon RETURNS STRING SONAME "UDF_EXAMPLE_LIB";
SELECT ret FROM mysql.func WHERE name like 'metaphon';
ret
0
CREATE FUNCTION metaphon RETURNS STRING SONAME "UDF_EXAMPLE_LIB";
ERROR HY000: Function 'metaphon' already exists
SELECT metaphon('mariadb');
metaphon('mariadb')
MRTB
DROP FUNCTION metaphon;
DROP FUNCTION IF EXISTS metaphon;
Warnings:
Note 1305 FUNCTION test.metaphon does not exist
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