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
38
39
40
|
--source include/have_debug_sync.inc
--source include/have_udf.inc
#
# MDEV-5616 - Deadlock between CREATE/DROP FUNCTION and SELECT from view
#
--replace_result $UDF_EXAMPLE_SO UDF_EXAMPLE_LIB
eval CREATE FUNCTION myfunc_int RETURNS INTEGER SONAME "$UDF_EXAMPLE_SO";
CREATE VIEW v1 AS SELECT myfunc_int(1);
connect(con1, localhost, root,,);
connection con1;
SET debug_sync='mysql_create_function_after_lock SIGNAL locked WAIT_FOR go';
--replace_result $UDF_EXAMPLE_SO UDF_EXAMPLE_LIB
send_eval CREATE FUNCTION myfunc_double RETURNS REAL SONAME "$UDF_EXAMPLE_SO";
connection default;
SET debug_sync='now WAIT_FOR locked';
SET debug_sync='find_udf_before_lock SIGNAL go';
SELECT * FROM v1;
FLUSH TABLES;
connection con1;
reap;
SET debug_sync='mysql_drop_function_after_lock SIGNAL locked WAIT_FOR go';
send DROP FUNCTION myfunc_double;
connection default;
SET debug_sync='now WAIT_FOR locked';
SET debug_sync='find_udf_before_lock SIGNAL go';
SELECT * FROM v1;
connection con1;
reap;
disconnect con1;
connection default;
SET debug_sync='RESET';
DROP VIEW v1;
DROP FUNCTION myfunc_int;
|
