Saturday, August 29, 2026
1 change · saas-19.1
Enhancements to existing features
This update speeds up an internal database lookup used to inspect column information, especially during upgrades or operations on large databases. By replacing a slower generic database view with a more focused query, it can reduce time spent on these checks without changing user-facing behavior.
Original PR description
Using the view `information_schema.columns` is slow compared to a simplified query using PG catalog tables. Here we propose to cherry pick the parts of the view that we actually use. Below we show…
Using the view `information_schema.columns` is slow compared to a simplified query using PG catalog tables. Here we propose to cherry pick the parts of the view that we actually use.
Below we show the timings of both queries as reported by the system on an upgrade 18->master with a runbot DB (many modules installed). All values are in milliseconds.
```
Original:
min: 0.931
max: 16.786
mean: 1.8790601284296555
sum: 25750.64
len: 13704
New:
min: 0.224
max: 11.832
mean: 0.8649024372446001
sum: 11852.623
len: 13704
```
Total time spent in queries was halved as seen in the `sum` statistic above.
Technically, the new queries are base on the original information schema view definition as returned by `\d+ information_schema.columns`. With all unused info removed.
Description of the issue/feature this PR addresses:
Current behavior before PR:
Desired behavior after PR is merged:
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Forward-Port-Of: odoo/odoo#285419
Forward-Port-Of: odoo/odoo#216309