Add index on the `product_id` of `stock.production.lot` for
several reasons:
- Lot of field domains depending of `product_id`
(e.g. `lot_id` of quant, sml, ...)
- Almost every search on this model contains the field `product_id`
- `product_id` is required and the sparsity is generally high
Performance improvements:
For a DB with 6000 lots, `search_read` with product_id is
x2 times faster.
task-2389380
Rémy Voet (ryv)
aa898c9a33