[IMP] core: new SQL alias builder

Update the documentation with more recent examples of usage of the Query
object.

Author: kmagusiak

content/developer/reference/backend/orm.rst

@@ -749,9 +749,33 @@ The recommended way to build SQL queries is to use the wrapper object
 
 .. autoclass:: odoo.tools.SQL
 
-    .. automethod:: SQL.join
     .. automethod:: SQL.identifier
 
+The :method:`~odoo.api.Environment.execute_query` allows to flush (see later),
+execute and fetch results at once.
+To translate model fields into SQL, and build queries, a useful abstraction
+is provided in
+
+.. autoclass:: odoo.models.Query
+
+    .. automethod:: Query.select
+    .. automethod:: Query.subselect
+    .. automethod:: Query.is_empty
+    .. automethod:: Query.get_result_ids
+    .. autoproperty:: Query.table
+
+.. example::
+
+    .. code-block:: python
+
+        query = Query(self.env['model'])
+        query.add_where(SQL("%s > %s", query.table.some_field, 'test'))
+        query.select()
+        # SELECT model.id
+        # FROM model
+        # WHERE model.some_field > 'test'
+
+
 One important thing to know about models is that they don't necessarily perform
 database updates right away. Indeed, for performance reasons, the framework
 delays the recomputation of fields after modifying records. And some database
@@ -781,6 +805,11 @@ when flushing.
 
 .. automethod:: Model.flush_recordset
 
+.. automethod:: odoo.api.Environment.execute_query
+
+When using the Query builder and ``execute_query``, model flushes are done based
+on the metadata in the ``SQL``.
+
 Because models use the same cursor and the :class:`~odoo.api.Environment`
 holds various caches, these caches must be invalidated when *altering* the
 database in raw SQL, or further uses of models may become incoherent. It is
@@ -798,6 +827,13 @@ SQL, but not ``SELECT`` (which simply reads the database).
 
         # invalidate 'state' from the cache
         self.env['model'].invalidate_model(['state'])
+    
+    .. code-block:: python
+
+        # get name and country name for all records, flushing and joins are
+        # done automatically
+        query = Query(self.env['model'])
+        self.env.execute_query(query.select(SQL(query.table.name, query.table.country_id.name)))
 
 Just like flushing, one can invalidate either the whole cache, the cache of all
 the records of a model, or the cache of specific records. One can even

content/developer/reference/backend/orm/changelog.rst

@@ -4,6 +4,12 @@
 Changelog
 =========
 
+Odoo Online version 19.1
+========================
+
+- New API to build SQL.
+  See `#234156 <https://github.com/odoo/odoo/pull/234156>`_.
+
 Odoo version 19.0
 =================