# Part of Odoo. See LICENSE file for full copyright and licensing details. from odoo import models from odoo.tools.sql import create_index class MailMessage(models.Model): _inherit = 'mail.message' def init(self): super().init() create_index( self._cr, 'mail_message_date_res_id_id_for_burndown_chart', self._table, ['date', 'res_id', 'id'], where="model='project.task' AND message_type='notification'" )