Description:
------------
I using php 5.1.1 on IIS with 4.1.10a. The test database have 3 rows, the rowCount function returns 0, but foreach dumps 3 records of the table. But the rowCount returns correct result with INSERT, UPDATE and DELETE.

Reproduce code:
---------------
$Con = new PDO('mysql:host=localhost;dbname=nitin', 'root', '');
$Res = $Con->query('select * from test');
echo('rowCount: ' . $Res->rowCount() . "\n\n");

foreach ($Res as $Record) {
	var_dump($Record);
}


Expected result:
----------------
rowCount: 3

array(2) {
  ["test_int1"]=>
  string(1) "1"
  [0]=>
  string(1) "1"
}
array(2) {
  ["test_int1"]=>
  string(1) "1"
  [0]=>
  string(1) "1"
}
array(2) {
  ["test_int1"]=>
  string(1) "1"
  [0]=>
  string(1) "1"
}


Actual result:
--------------
rowCount: 0

array(2) {
  ["test_int1"]=>
  string(1) "1"
  [0]=>
  string(1) "1"
}
array(2) {
  ["test_int1"]=>
  string(1) "1"
  [0]=>
  string(1) "1"
}
array(2) {
  ["test_int1"]=>
  string(1) "1"
  [0]=>
  string(1) "1"
}