[IMP] stock,mrp: add indexes on picking type

This commit adds an index on picking_type_id for models stock.picking
and mrp.production.

Filtering on picking_type_id is often done via the Inventory Overview.
This should speed up the list render in case of many object.

Task : 2648449

closes odoo/odoo#80434

Related: odoo/upgrade#3068
Related: odoo/enterprise#22535
Signed-off-by: William Henrotin (whe) <whe@odoo.com>

addons/mrp/models/mrp_production.py

@@ -113,7 +113,7 @@ class MrpProduction(models.Model):
     picking_type_id = fields.Many2one(
         'stock.picking.type', 'Operation Type',
         domain="[('code', '=', 'mrp_operation'), ('company_id', '=', company_id)]",
-        default=_get_default_picking_type, required=True, check_company=True)
+        default=_get_default_picking_type, required=True, check_company=True, index=True)
     use_create_components_lots = fields.Boolean(related='picking_type_id.use_create_components_lots')
     location_src_id = fields.Many2one(
         'stock.location', 'Components Location',

addons/stock/models/stock_picking.py

@@ -333,7 +333,7 @@ class Picking(models.Model):
         'Has Scrap Moves', compute='_has_scrap_move')
     picking_type_id = fields.Many2one(
         'stock.picking.type', 'Operation Type',
-        required=True, readonly=True,
+        required=True, readonly=True, index=True,
         states={'draft': [('readonly', False)]})
     picking_type_code = fields.Selection(
         related='picking_type_id.code',