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BUG#21726: Incorrect result with multiple invocations of LAST_INSERT_ID.

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Note: bug#21726 does not directly apply to 4.1, as it doesn't have stored
procedures.  However, 4.1 had some bugs that were fixed in 5.0 by the
patch for bug#21726, and this patch is a backport of those fixes.
Namely, in 4.1 it fixes:

  - LAST_INSERT_ID(expr) didn't return value of expr (4.1 specific).

  - LAST_INSERT_ID() could return the value generated by current
    statement if the call happens after the generation, like in

      CREATE TABLE t1 (i INT AUTO_INCREMENT PRIMARY KEY, j INT);
      INSERT INTO t1 VALUES (NULL, 0), (NULL, LAST_INSERT_ID());

  - Redundant binary log LAST_INSERT_ID_EVENTs could be generated.
This commit is contained in:
kroki/tomash@moonlight.intranet
2006-10-06 13:34:07 +04:00
parent acaa584c55
commit ee0cebf9a7
13 changed files with 189 additions and 38 deletions
Download Patch File Download Diff File Expand all files Collapse all files

38
tests/mysql_client_test.c
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@ -11908,6 +11908,43 @@ static void test_bug20152()
}
/*
Bug#21726: Incorrect result with multiple invocations of
LAST_INSERT_ID
Test that client gets updated value of insert_id on UPDATE that uses
LAST_INSERT_ID(expr).
*/
static void test_bug21726()
{
const char *update_query = "UPDATE t1 SET i= LAST_INSERT_ID(i + 1)";
int rc;
my_ulonglong insert_id;
DBUG_ENTER("test_bug21726");
myheader("test_bug21726");
rc= mysql_query(mysql, "DROP TABLE IF EXISTS t1");
myquery(rc);
rc= mysql_query(mysql, "CREATE TABLE t1 (i INT)");
myquery(rc);
rc= mysql_query(mysql, "INSERT INTO t1 VALUES (1)");
myquery(rc);
rc= mysql_query(mysql, update_query);
myquery(rc);
insert_id= mysql_insert_id(mysql);
DIE_UNLESS(insert_id == 2);
rc= mysql_query(mysql, update_query);
myquery(rc);
insert_id= mysql_insert_id(mysql);
DIE_UNLESS(insert_id == 3);
DBUG_VOID_RETURN;
}
/*
Read and parse arguments and MySQL options from my.cnf
*/
@ -12134,6 +12171,7 @@ static struct my_tests_st my_tests[]= {
{ "test_bug12925", test_bug12925 },
{ "test_bug15613", test_bug15613 },
{ "test_bug20152", test_bug20152 },
{ "test_bug21726", test_bug21726 },
{ 0, 0 }
};