[FIX] *: Odoo 16 requires postgresql 12

Update the minimal version in the installation doc
Make all postgresql docs references target the v12 documentation
Fix some non http links on the way

closes odoo/documentation#2821

Signed-off-by: Victor Feyens (vfe) <vfe@odoo.com>

content/developer/cli.rst

@@ -633,16 +633,16 @@ Here is a sample file:
    db_user=odoo
    dbfilter=odoo
 
-.. _jinja2: http://jinja.pocoo.org
+.. _jinja2: https://jinja.palletsprojects.com/
 .. _regular expression: https://docs.python.org/3/library/re.html
 .. _password authentication:
-    https://www.postgresql.org/docs/9.3/static/auth-methods.html#AUTH-PASSWORD
+    https://www.postgresql.org/docs/12/static/auth-methods.html#AUTH-PASSWORD
 .. _template database:
-    https://www.postgresql.org/docs/9.3/static/manage-ag-templatedbs.html
+    https://www.postgresql.org/docs/12/static/manage-ag-templatedbs.html
 .. _level:
     https://docs.python.org/3/library/logging.html#logging.Logger.setLevel
 .. _a PostgreSQL URI:
-    https://www.postgresql.org/docs/9.2/static/libpq-connect.html#AEN38208
+    https://www.postgresql.org/docs/12/static/libpq-connect.html#AEN38208
 .. _Werkzeug's proxy support:
     https://werkzeug.palletsprojects.com/en/0.16.x/middleware/proxy_fix/#module-werkzeug.middleware.proxy_fix
 .. _pyinotify: https://github.com/seb-m/pyinotify/wiki

content/developer/howtos/backend.rst

@@ -469,7 +469,7 @@ Relational field types are:
 
         print(foo.other_id.name)
 
-    .. seealso:: `foreign keys <http://www.postgresql.org/docs/9.3/static/tutorial-fk.html>`_
+    .. seealso:: `foreign keys <http://www.postgresql.org/docs/12/static/tutorial-fk.html>`_
 
 :class:`One2many(other_model, related_field) <odoo.fields.One2many>`
     A virtual relationship, inverse of a :class:`~odoo.fields.Many2one`.
@@ -1375,18 +1375,12 @@ Dashboards
              bypasses all Odoo authentication and security mechanisms.
 
 .. _database index:
-    http://use-the-index-luke.com/sql/preface
-
-.. _POEdit: http://poedit.net
-
+    https://use-the-index-luke.com/sql/preface
+.. _POEdit: https://poedit.net
 .. _PostgreSQL's documentation:
 .. _table_constraint:
-    http://www.postgresql.org/docs/9.3/static/ddl-constraints.html
-
-.. _python: http://python.org
-
-.. _XPath: http://w3.org/TR/xpath
-
-.. _twitter bootstrap: http://getbootstrap.com
-
-.. _wkhtmltopdf: http://wkhtmltopdf.org
+    https://www.postgresql.org/docs/12/static/ddl-constraints.html
+.. _python: https://python.org
+.. _XPath: https://w3.org/TR/xpath
+.. _twitter bootstrap: https://getbootstrap.com
+.. _wkhtmltopdf: https://wkhtmltopdf.org

content/developer/howtos/rdtraining/08_relations.rst

@@ -59,7 +59,7 @@ can then be easily done with::
 
 .. seealso::
 
-    `foreign keys <https://www.postgresql.org/docs/current/tutorial-fk.html>`_
+    `foreign keys <https://www.postgresql.org/docs/12/tutorial-fk.html>`_
 
 In practice a many2one can be seen as a dropdown list in a form view.
 

content/developer/howtos/rdtraining/11_constraints.rst

@@ -127,4 +127,4 @@ improve it in the :ref:`next chapter <howto/rdtraining/12_sprinkles>`.
 
 .. _PostgreSQL's documentation:
 .. _table_constraint:
-    https://www.postgresql.org/docs/current/ddl-constraints.html
+    https://www.postgresql.org/docs/12/ddl-constraints.html

content/developer/howtos/rdtraining/12_sprinkles.rst

@@ -519,4 +519,4 @@ Looking good? If not, don't worry, the :ref:`next chapter <howto/rdtraining/13_i
 require stat buttons ;-)
 
 .. _order_by:
-    https://www.postgresql.org/docs/current/queries-order.html
+    https://www.postgresql.org/docs/12/queries-order.html

content/developer/howtos/website.rst

@@ -999,10 +999,10 @@ to *active="True"*:
 With this, the *Product Categories* sidebar will automatically be enabled when
 the *Academy* module is installed.
 
-.. _templates: http://en.wikipedia.org/wiki/Web_template
+.. _templates: https://en.wikipedia.org/wiki/Web_template
 .. _postgres:
 .. _postgresql:
-    http://www.postgresql.org
+    https://www.postgresql.org
 .. _converter pattern:
 .. _converter patterns:
-    http://werkzeug.pocoo.org/docs/routing/#rule-format
+    https://werkzeug.pocoo.org/docs/routing/#rule-format

content/developer/reference/backend/views.rst

@@ -687,7 +687,7 @@ There are 5 possible type of tags in a dashboard view:
 
     ``group_operator`` (optional)
         A valid postgreSQL aggregate function identifier to use when aggregating
-        values (see https://www.postgresql.org/docs/9.5/static/functions-aggregate.html).
+        values (see https://www.postgresql.org/docs/12/static/functions-aggregate.html).
         If not provided, By default, the group_operator from the field definition is used.
         Note that no aggregation of field values is achieved if the group_operator value is "".