ID:               29669
 Updated by:       [EMAIL PROTECTED]
 Reported By:      www dot spam at whoah dot net
-Status:           Open
+Status:           Feedback
 Bug Type:         COM related
 Operating System: Windows 2000 Professional
 PHP Version:      5.0.1
 New Comment:

Please try using this CVS snapshot:

  http://snaps.php.net/php5-STABLE-latest.tar.gz
 
For Windows:
 
  http://snaps.php.net/win32/php5.0-win32-latest.zip




Previous Comments:
------------------------------------------------------------------------

[2004-08-14 04:13:53] www dot spam at whoah dot net

Further:

The delay seems to be related to the size of the results data being
returned. The table referenced by my query has some 11000 records
whereas the same query on another table with only a few records
experiences no delay.

Querying the same table (11000 records) using a server-side cursor
causes no delay.

ASP experiences no such delay using the same COM objects and routines,
on the same server.

------------------------------------------------------------------------

[2004-08-14 03:29:38] www dot spam at whoah dot net

Description:
------------
When attempting to use ADODB.RecordSet COM object to query an MS Access
database via a DSNless connection, setting the CursorLocation to
adUseClient causes a significant delay on the processing of a query
execution. 

ASP has no such issue with this, so maybe PHP's support can be improved
(client-side cursor location allows the use of additional RecordSet
features such as ->Sort() and ->Filter(), handy for porting ASP code
that uses it instead of writing a dynamic query).

Any database and query should reproduce this, so please modify the
'reproduce code' appropriately (to point to your own database and use
your own query).

Reproduce code:
---------------
define("adLockReadOnly",1);
define("adOpenStatic",3);
define("adUseClient",3);

function simpleRS($conn,$q) {
        $rs = new COM('ADODB.RecordSet');
        $rs->ActiveConnection = $conn;
        $rs->LockType = adLockReadOnly;
        $rs->CursorLocation = adUseClient; //comment this line to remove the
delay
        $rs->CursorType = adOpenStatic;
        $rs->Source = $q;
        echo 'opening... '; $rs->Open(); echo 'done';
        return $rs;
}

$dbconn = new COM('ADODB.Connection');
$dbconn->open('Provider=Microsoft.Jet.OLEDB.4.0; Data Source='.
realpath('../../data/phpbb2.mdb'));
$rsUserList = simpleRS($dbconn,'SELECT * FROM phpbb_users');
$dbconn->close();

Expected result:
----------------
opening... *almost instant* done

Actual result:
--------------
opening... *delay* done


------------------------------------------------------------------------


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