Integer keys - drawbacks

To: Openldap Technical <openldap-technical@openldap.org>
Subject: Integer keys - drawbacks
From: Sam Dave <samdave@tuta.io>
Date: Fri, 1 Mar 2019 22:13:44 +0100 (CET)
Dkim-signature: v=1; a=rsa-sha256; c=relaxed/simple; d=tuta.io; s=20161216; t=1551474825; bh=8x7XT02pwYB9tcPDWpiEhqtyXUi9xV4VyfbZ4StdWrU=; h=Date:From:To:Subject:From; b=uO49zMKJfOvNCYgoyCN51DdXmeTBSL3RMRLdSPJlMioXWSySiatKwv8UGD+ENC2K5 56QWGcPhG6RasJv8DjSA+nhG6aphch1YscusDTF69JD2QrBL1VORjmdtzSOXr1cEPt Zcfhu1m1YExDqCT+3YAWNmu5k4xsk/zYZuChuj9SZqxu4Rlw7aDD4WpxyR9BFxA1Yp VB2nr/FtxISC2UE92bkl55//rU6nmVRhJlOkWIRJV2hMKMw7c0PeoXd7P7VHVYpBR4 h/DFZJPr2PxxpB9hjV77KmjVg0SvkTb6tzfIzpwrgZqKthc0CEuvFoYuI4GwbsFdLN MLBCUwYEeUFUg==

Are there any known drawbacks to using integer keys (MDB_INTEGERKEY), performance or otherwise?