Denis Ledoux
36551615b7
instead of updating the cache by records.
We use `cr.fetchall()` and `zip` to get the values by field, which is more
convenient to be stored in cache.
Result of `cr.fetchall()`:
```
[
(3, 'Marc Demo', 'demo@example.com', '032'),
(1, 'Mitchell Admin', 'admin@example.com', '001'),
]
```
After being grouped by field:
```
[
[3, 1],
['Marc Demo', 'Mitchell Admin],
['demo@example.com', 'admin@example.com'],
['032', '001'],
]
```
That way we can update the cache of a field for all records at once, by calling
the builtin `update` method of `dict` with the `zip` of record ids and
corresponding values.
This significantly speeds up the storage of field values in the cache.
closes odoo/odoo#30817
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