107 lines
3.7 KiB
C++
107 lines
3.7 KiB
C++
/**
|
|
* @file bug565.cpp regression case for bug 565 ( "Clients CLIENT_FOUND_ROWS setting is ignored by maxscale" ) MAX-311
|
|
*
|
|
* - open connection with CLIENT_FOUND_ROWS flag
|
|
* - CREATE TABLE t1(id INT PRIMARY KEY, val INT, msg VARCHAR(100))
|
|
* - INSERT INTO t1 VALUES (1, 1, 'foo'), (2, 1, 'bar'), (3, 2, 'baz'), (4, 2, 'abc')"
|
|
* - check 'affected_rows' for folloing UPDATES:
|
|
* + UPDATE t1 SET msg='xyz' WHERE val=2" (expect 2)
|
|
* + UPDATE t1 SET msg='xyz' WHERE val=2 (expect 0)
|
|
* + UPDATE t1 SET msg='xyz' WHERE val=2 (expect 2)
|
|
*/
|
|
|
|
/*
|
|
Hartmut Holzgraefe 2014-10-02 14:27:18 UTC
|
|
Created attachment 155 [details]
|
|
test for mysql_affected_rows() with/without CLIENT_FOUND_ROWS connection flag
|
|
|
|
Even worse: connections via maxscale always behave as if CLIENT_FOUND_ROWS is set even though the default is NOT having it set.
|
|
|
|
When doing the same update two times in a row without CLIENT_FOUND_ROWS
|
|
mysql_affected_rows() should return the number of rows actually changed
|
|
by the last query, while with CLIENT_FOUND_ROWS connection flag set the
|
|
number of matching rows is returned, even if the UPDATE didn't change
|
|
any column values.
|
|
|
|
With a direct connection to mysqld this works as expected,
|
|
through readconnroute(master) I'm always getting the number of matching
|
|
rows (as if CLIENT_FOUND_ROWS was set), and not the number of actually
|
|
changed rows when CLIENT_FOUND_ROWS is not set (which is the default
|
|
behaviour when not setting connection options)
|
|
|
|
Attaching PHP mysqli test script, result with direct mysqld connection is
|
|
|
|
update #1: 2
|
|
update #2: 0
|
|
update #3: 2
|
|
|
|
while through maxscale it is
|
|
|
|
update #1: 2
|
|
update #2: 2
|
|
update #3: 2
|
|
|
|
I also verified this using the C API directly to rule out that this is
|
|
a PHP specific problem
|
|
Comment 1 Vilho Raatikka 2014-10-08 14:11:38 UTC
|
|
Client flags are not passed to backend server properly.
|
|
Comment 2 Vilho Raatikka 2014-10-08 19:35:58 UTC
|
|
Pushed initial fix to MAX-311. Waiting for validation for the fix.
|
|
*/
|
|
|
|
|
|
#include <iostream>
|
|
#include "testconnections.h"
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
TestConnections * Test = new TestConnections(argc, argv);
|
|
Test->set_timeout(30);
|
|
MYSQL * conn_found_rows;
|
|
my_ulonglong rows;
|
|
|
|
|
|
Test->repl->connect();
|
|
Test->connect_maxscale();
|
|
|
|
conn_found_rows = open_conn_db_flags(Test->rwsplit_port, Test->maxscale_IP, (char *) "test",
|
|
Test->maxscale_user, Test->maxscale_password, CLIENT_FOUND_ROWS, Test->ssl);
|
|
|
|
Test->set_timeout(30);
|
|
execute_query(Test->conn_rwsplit, "DROP TABLE IF EXISTS t1");
|
|
execute_query(Test->conn_rwsplit, "CREATE TABLE t1(id INT PRIMARY KEY, val INT, msg VARCHAR(100))");
|
|
execute_query(Test->conn_rwsplit,
|
|
"INSERT INTO t1 VALUES (1, 1, 'foo'), (2, 1, 'bar'), (3, 2, 'baz'), (4, 2, 'abc')");
|
|
|
|
Test->set_timeout(30);
|
|
execute_query_affected_rows(Test->conn_rwsplit, "UPDATE t1 SET msg='xyz' WHERE val=2", &rows);
|
|
Test->tprintf("update #1: %ld (expeced value is 2)\n", (long) rows);
|
|
if (rows != 2)
|
|
{
|
|
Test->add_result(1, "Affected rows is not 2\n");
|
|
}
|
|
|
|
Test->set_timeout(30);
|
|
execute_query_affected_rows(Test->conn_rwsplit, "UPDATE t1 SET msg='xyz' WHERE val=2", &rows);
|
|
Test->tprintf("update #2: %ld (expeced value is 0)\n", (long) rows);
|
|
if (rows != 0)
|
|
{
|
|
Test->add_result(1, "Affected rows is not 0\n");
|
|
}
|
|
|
|
Test->set_timeout(30);
|
|
execute_query_affected_rows(conn_found_rows, "UPDATE t1 SET msg='xyz' WHERE val=2", &rows);
|
|
Test->tprintf("update #3: %ld (expeced value is 2)\n", (long) rows);
|
|
if (rows != 2)
|
|
{
|
|
Test->add_result(1, "Affected rows is not 2\n");
|
|
}
|
|
|
|
Test->close_maxscale_connections();
|
|
|
|
int rval = Test->global_result;
|
|
delete Test;
|
|
return rval;
|
|
|
|
}
|