QueryBuilder delete issues CREATE TEMPORARY TABLE error on PostgreSQL

When I try to issue a delete an Class Table Inheritance Entity using QueryBuilder and I'm using schemas on tablename (for Postgres), I got the following error from postgres:

SQLSTATE[42P16]: Invalid table definition: 7 ERROR: temporary tables cannot specify a schema name

This occurs because Doctrine\ORM\Mapping\ClassMetadataInfo::getTemporaryIdTableName() returns just "$this->table['name'] . '_id_tmp'", and when my entity is declared with @Table(name="feed.tb_feed"), obviously I will got error.

Temporary tables are created in a special schema in Postgres, and I'm thinking to convert the tablename from the class metadata from feed.tb_feed to feed_tb_feed into the getTemporaryIdTableName method with a single str_replace. That works for Postgres, but I don't mind what can happen in another DBMS.

Any suggestions?