wpdb update null

Hi,

I found that using wpdb->update to set a db field to null is not working. I did some research and found the following info:

– https://core.trac.wordpress.org/ticket/15158

– http://wordpress.org/support/topic/bug-fix-wpdb-insert-amp-update-with-null-values?replies=7

Given the info in the ticket, it looks like it’s still a bug, even in the current version of wordpress.

An example of what I want to do is:

$c1 = "";
$c2 = NULL;
$wpdb->update(
	'table',
	array(
		'column1' => $c1,	// string
		'column2' => $c2	// integer (number)
	),
	array( 'ID' => 1 ),
	array(
		'%s',	// value1
		'%d'	// value2
	),
	array( '%d' )
);

Note – the db columns do allow NULL.

Is this still not possible?

Thanks.