/**
 * @file bug507.cpp regression case for bug 507 ( "rw-split router does not send last_insert_id() to master" )
 *
 * - "CREATE TABLE t2 (id INT(10) NOT NULL AUTO_INCREMENT, x int,  PRIMARY KEY (id));",
 * - do INSERT using RWsplit
 * - do "select last_insert_id(), @@server_id" using RWSplit and directly to Master, compare @@server_id
 *
 */

/*
 *  Kolbe Kegel 2014-09-01 14:45:56 UTC
 *  After inserting a row via the rw-split router, a call to last_insert_id() can go to a slave, producing bad
 * results.
 *
 *  mariadb> select * from t1;
 +----+
 | id |
 +----+
 |  1 |
 |  4 |
 +----+
 |  2 rows in set (0.00 sec)
 |
 |  mariadb> insert into t1 values ();
 |  Query OK, 1 row affected (0.00 sec)
 |
 |  mariadb> select * from t1;
 +----+
 | id |
 +----+
 |  1 |
 |  4 |
 |  7 |
 +----+
 |  3 rows in set (0.00 sec)
 |
 |  mariadb> select last_insert_id();
 +------------------+
 | last_insert_id() |
 +------------------+
 |                0 |
 +------------------+
 |  1 row in set (0.00 sec)
 |
 |  mariadb> select @@wsrep_node_address, last_insert_id();
 +----------------------+------------------+
 | @@wsrep_node_address | last_insert_id() |
 +----------------------+------------------+
 | 192.168.30.31        |                7 |
 +----------------------+------------------+
 |  1 row in set (0.00 sec)
 |  Comment 1 Vilho Raatikka 2014-09-01 17:51:45 UTC
 |  last_inserted_id() belongs to UNKNOWN_FUNC class to which many read-only system functions belong too. Thus
 |last_inserted_id() was routed to any slave.
 |
 |  Unfortunately I can't confirm wrong behavior since running the same sequence generates same output when
 |connected directly to MariaDB backend. Perhaps there is something required for the table t1 which is not
 |included here?
 |  Comment 2 Vilho Raatikka 2014-09-01 20:01:35 UTC
 |  An autoincrement attribute was missing.
 */


#include <iostream>
#include "testconnections.h"

const char* sel1 = "select last_insert_id(), @@server_id";

int main(int argc, char* argv[])
{
    TestConnections* Test = new TestConnections(argc, argv);
    Test->set_timeout(60);

    Test->repl->connect();
    Test->maxscales->connect_maxscale(0);

    if (Test->repl->N < 3)
    {
        Test->tprintf("There is not enoght nodes for test\n");
        delete Test;
        exit(1);
    }

    Test->tprintf("Creating table\n");
    fflush(stdout);
    Test->try_query(Test->maxscales->conn_rwsplit[0], (char*) "DROP TABLE IF EXISTS t2");
    Test->try_query(Test->maxscales->conn_rwsplit[0],
                    (char*) "CREATE TABLE t2 (id INT(10) NOT NULL AUTO_INCREMENT, x int,  PRIMARY KEY (id));");
    Test->tprintf("Doing INSERTs\n");
    fflush(stdout);
    Test->try_query(Test->maxscales->conn_rwsplit[0], (char*) "insert into t2 (x) values (1);");

    Test->stop_timeout();
    Test->repl->sync_slaves();

    Test->set_timeout(20);
    Test->tprintf("Trying \n");
    char last_insert_id1[1024];
    char last_insert_id2[1024];
    if ((
            find_field(Test->maxscales->conn_rwsplit[0],
                       sel1,
                       "@@server_id",
                       &last_insert_id1[0])
            != 0 ) || (
            find_field(Test->repl->nodes[0],
                       sel1,
                       "@@server_id",
                       &last_insert_id2[0])
            != 0 ))
    {
        Test->tprintf("@@server_id fied not found!!\n");
        delete Test;
        exit(1);
    }
    else
    {
        Test->tprintf("'%s' to RWSplit gave @@server_id %s\n", sel1, last_insert_id1);
        Test->tprintf("'%s' directly to master gave @@server_id %s\n", sel1, last_insert_id2);
        Test->add_result(strcmp(last_insert_id1, last_insert_id2),
                         "last_insert_id() are different depending in which order terms are in SELECT\n");
    }

    Test->maxscales->close_maxscale_connections(0);
    Test->repl->close_connections();

    Test->check_maxscale_alive(0);

    int rval = Test->global_result;
    delete Test;
    return rval;
}