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SET @old_general_log= @@global.general_log;
SET @old_log_output= @@global.log_output;
SET @old_general_log_file= @@global.general_log_file;
SET global general_log= ON;
SET global log_output='table';
TRUNCATE TABLE mysql.general_log;
# Simple load test
INSTALL COMPONENT "file://component_udf_reg_3_func";
SELECT myfunc_double();
ERROR HY000: Can't initialize function 'myfunc_double'; myfunc_double must have at least one argument
SELECT myfunc_double(1);
myfunc_double(1)
49.00
SELECT myfunc_double(78654);
myfunc_double(78654)
54.00
SELECT myfunc_int();
myfunc_int()
0
SELECT myfunc_int(5);
myfunc_int(5)
5
SELECT myfunc_int('MySQL V8.0');
myfunc_int('MySQL V8.0')
10
CREATE TABLE t1(a INT, b INT);
INSERT INTO t1 values (1,1),(2,2);
SELECT myfunc_int(a AS attr_name) FROM t1;
myfunc_int(a AS attr_name)
1
2
DROP TABLE t1;
CREATE TABLE t1(sum int, price float(24));
INSERT INTO t1 VALUES(100, 50.00), (100, 100.00);
SELECT avgcost(sum, price) from t1;
avgcost(sum, price)
75.0000
DELETE from t1;
INSERT INTO t1 VALUES(100, 54.33), (200, 199.99);
SELECT avgcost(sum, price) from t1;
avgcost(sum, price)
151.4367
DROP TABLE t1;
# remove the plugin
UNINSTALL COMPONENT "file://component_udf_reg_3_func";
SELECT myfunc_double(1);
ERROR 42000: FUNCTION test.myfunc_double does not exist
SELECT myfunc_double(1);
ERROR 42000: FUNCTION test.myfunc_double does not exist
INSTALL COMPONENT "file://component_udf_reg_3_func";
SELECT myfunc_double(78654);
myfunc_double(78654)
54.00
SELECT myfunc_int(5);
myfunc_int(5)
5
INSTALL COMPONENT "file://component_udf_unreg_int_func";
UNINSTALL COMPONENT "file://component_udf_unreg_int_func";
SELECT myfunc_double(78654);
myfunc_double(78654)
54.00
SELECT myfunc_int(5);
ERROR 42000: FUNCTION test.myfunc_int does not exist
UNINSTALL COMPONENT "file://component_udf_reg_3_func";
SET GLOBAL general_log = @old_general_log;
SET GLOBAL log_output = @old_log_output;
SET GLOBAL general_log_file = @old_general_log_file;
select command_type,argument from mysql.general_log WHERE argument LIKE '%myfunc%';
command_type argument
Query SELECT myfunc_double()
Query SELECT myfunc_double(1)
Query SELECT myfunc_double(78654)
Query SELECT myfunc_int()
Query SELECT myfunc_int(5)
Query SELECT myfunc_int('MySQL V8.0')
Query SELECT myfunc_int(a AS attr_name) FROM t1
Query SELECT myfunc_double(1)
Query SELECT myfunc_double(1)
Query SELECT myfunc_double(78654)
Query SELECT myfunc_int(5)
Query SELECT myfunc_double(78654)
Query SELECT myfunc_int(5)
TRUNCATE TABLE mysql.general_log;
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