Nicolas Martinelli
60dbf05750
Commit 6a366b216b introduces a subquery when fetching translations in
order to avoid fetching duplicates. On large a `ir.translation` table
(~500000 records), this can cause a major performance degradation when
the user is not using the English language.
A typical example is a `read_group` call such as:
```
self.env['stock.quant'].with_context(lang='fr_BE').read_group([
('location_id', 'child_of', self.env.ref('stock.stock_location_stock').id)],
['product_id', 'qty'], ['product_id'], limit=80)
```
When no `orderby` parameter is used, the `groupby` fields are
implicitly used for ordering. While this makes sense for direct calls
from the web client, this implicit order might be problematic for
programmatic calls (such as computed fields). Indeed, in case of
grouping by product, the subquery mentioned earlier is used to sort by
product name. This is costly, and in most of the cases useless.
The workaround is to explicitely order by `id`, to avoid the use of the
subquery. For the upcoming version, a cleaner fix should be made in
order to prevent duplicated translations, and get rid of the subquery.
opw-767532
Odoo
Odoo is a suite of web based open source business apps.
The main Odoo Apps include an Open Source CRM, Website Builder, eCommerce, Warehouse Management, Project Management, Billing & Accounting, Point of Sale, Human Resources, Marketing, Manufacturing, Purchase Management, ...
Odoo Apps can be used as stand-alone applications, but they also integrate seamlessly so you get a full-featured Open Source ERP when you install several Apps.
Getting started with Odoo
For a standard installation please follow the Setup instructions from the documentation.
If you are a developer you may type the following command at your terminal:
wget -O- https://raw.githubusercontent.com/odoo/odoo/10.0/setup/setup_dev.py | python
Then follow the developer tutorials
For Odoo employees
To add the odoo-dev remote use this command:
$ ./setup/setup_dev.py setup_git_dev
To fetch odoo merge pull requests refs use this command:
$ ./setup/setup_dev.py setup_git_review