Doctrine2 Criteria() generate wrong MySQL query - mysql

Question

when I use \Doctrine\Common\Collections\Criteria::create()
use Doctrine\Common\Collections\Criteria;
...
$criteria = Criteria::create();
$criteria->where(Criteria::expr()->eq('isPublished', 1))
->andWhere(Criteria::expr()->eq('isDeleted', 0));
$this->comments->matching($criteria)
and I getting error:
Message:
An exception occurred while executing 'SELECT t0.id AS id1, t0.rating AS rating2, t0.text AS text3, t0.username AS username4, t0.isPublished AS isPublished5, t0.isDeleted AS isDeleted6, t0.dateCreated AS dateCreated7, t0.userIP AS userIP8, t0.user_id AS user_id9, t0.product_id AS product_id10 FROM product_comments t0 WHERE ((t0.isPublished IS ? AND t0.isDeleted IS ?) AND t0.product_id IS ?)' with params {"1":1,"2":0,"3":1123}:
SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '1 AND t0.isDeleted IS 0) AND t0.product_id*IS 1123)' at line 1
The problem is operand 'IS' in where clausule. It is not MySQL operand. (If I paste this query to MySQL terminal, and change "IS" => "=" - is all right)
Why Doctrine genetate such query? Where is the problem?

Answer 1

I solved changing line 91 of Doctrine\ORM\Persisters\BasicEntityPersister
from
Comparison::IS => 'IS %s',
to
Comparison::IS => '= %s',

Answer 2

This is a bug in doctrine fixed by upgrading Doctrine ORM to 2.3.5 or later.
Bug report at http://www.doctrine-project.org/jira/browse/DDC-2471
More discussion on the problem at
https://github.com/doctrine/collections/commit/3db3ab843ff76774bee4679d4cb3a10cffb0a935#diff-757942c669bf6be9910786b2558ad745

Answer 3

Try replacing
expr()->eq('isPublished', 1) and expr()->eq('isPublished', 0) with
expr()->eq('isPublished', '?1')
expr()->eq('isPublished', '?0')