Description:
------------
MS SQL usually return results for every query. For INSERT/UPDATE/DELETE return empty results and number of affected rows. It can be turn off by SET NOCOUNT ON and results will be returned only after SELECT queries.

pdo_dblib ignore SET NOCOUNT ON and still creating empty result sets (rowsets).

With pdo_sqlsrv (Windows server) and mssql (Linux server, FreeTDS) is everything ok.


Test script:
---------------
$pdo = new PDO("dblib:host=<host>;dbname=<dbname>", "username", "password");

$stmt = $pdo->query("
    SET NOCOUNT ON
    
    DECLARE @tempTable TABLE(value VARCHAR(20), find BIT)
    
    INSERT INTO @tempTable(value, find) VALUES('textA', 1)
    INSERT INTO @tempTable(value, find) VALUES('textB', 0)
    
    SELECT * FROM @tempTable
    ");

do
{
    print_r($stmt->fetchAll(PDO::FETCH_ASSOC));
}
while ($stmt->nextRowset());



Expected result:
----------------
Array
(
    [0] => Array
        (
            [value] => textA
            [find] => 1
        )

    [1] => Array
        (
            [value] => textB
            [find] => 0
        )
)


Actual result:
--------------
Array
(

)

Array
(
    [0] => Array
        (
            [value] => textA
            [find] => 1
        )

    [1] => Array
        (
            [value] => textB
            [find] => 0
        )
)