[19.0][IMP] database_cleanup: Add more tables to the purge tables blacklist

[quoc-pn]

Adding signaling tables to the purge tables blacklist to prevent their purging.

• orm_signaling_assets
• orm_signaling_default
• orm_signaling_groups
• orm_signaling_registry
• orm_signaling_routing
• orm_signaling_stable
• orm_signaling_templates

If one of these tables was dropped, the server error below will appear

2026-07-14 09:02:13,075 28425 ERROR ? odoo.sql_db: bad query: b'SELECT ( SELECT max(id) FROM "orm_signaling_registry"), ( SELECT max(id) FROM "orm_signaling_default"), ( SELECT max(id) FROM "orm_signaling_assets"), ( SELECT max(id) FROM "orm_signaling_stable"), ( SELECT max(id) FROM "orm_signaling_templates"), ( SELECT max(id) FROM "orm_signaling_routing"), ( SELECT max(id) FROM "orm_signaling_groups")'
ERROR: relation "orm_signaling_registry" does not exist
LINE 1: SELECT ( SELECT max(id) FROM "orm_signaling_registry"), ( SE...
                                     ^

2026-07-14 09:02:13,075 28425 WARNING ? odoo.http: Database or registry unusable, trying without
Traceback (most recent call last):
  File "/odoo/odoo/http.py", line 2250, in _serve_db
    self.registry = registry.check_signaling(cr)
                    ~~~~~~~~~~~~~~~~~~~~~~~~^^^^
  File "/odoo/odoo/orm/registry.py", line 1070, in check_signaling
    db_registry_sequence, db_cache_sequences = self.get_sequences(cr)
                                               ~~~~~~~~~~~~~~~~~~^^^^
  File "/odoo/odoo/orm/registry.py", line 1057, in get_sequences
    cr.execute(SQL("SELECT %s", signaling_selects))
    ~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/odoo/odoo/sql_db.py", line 433, in execute
    self._obj.execute(query, params)
    ~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^
psycopg2.errors.UndefinedTable: relation "orm_signaling_registry" does not exist
LINE 1: SELECT ( SELECT max(id) FROM "orm_signaling_registry"), ( SE...
                                     ^

If you accidentally drop those tables, restart Odoo to recreate them.

[pedrobaeza]

Can you document with links where that tables are used?

[quoc-pn]

Can you document with links where that tables are used?

Sure, I added the error I faced after purging those tables in the PR description.

[pedrobaeza]

OK, found the references:

https://github.com/odoo/odoo/blob/d1d1610332a1596d026fb0a42ec236d1a79c71cc/odoo/orm/registry.py#L1036
https://github.com/odoo/odoo/blob/d1d1610332a1596d026fb0a42ec236d1a79c71cc/odoo/orm/registry.py#L64

Not needed in v18.