Found using: https://github.com/intgr/topy

- move out logging tests from test_execute to test_logging

:class:`.Query` and in other situations where selects or joins
were aliased (such as joined table inheritance) could fail if a
user-defined :class:`.Column` subclass were used in the expression.
In this case, the subclass would fail to propagate ORM-specific
"annotations" along needed by the adaptation.  The "expression
annotations" system has been corrected to account for this case.
[ticket:2918]

target of :paramref:`.relationship.secondary` for the purposes
of creating very complex :func:`.relationship` join conditions.
The change includes adjustments to query joining, joined eager loading
to not render a SELECT subquery, changes to lazy loading such that
the "secondary" target is properly included in the SELECT, and
changes to declarative to better support specification of a
join() object with classes as targets.

are used with :func:`.joinedload()` (thereby causing a regression
in joined eager loading) as well as :func:`.aliased`
in conjunction with the ``flat=True`` flag and joined-table inheritance;
basically multiple joins across a "parent JOIN sub" entity using different
paths to get to a target class wouldn't form the correct ON conditions.
An adjustment / simplification made in the mechanics of figuring
out the "left side" of the join in the case of an aliased, joined-inh
class repairs the issue. [ticket:2908]

alias when saying query(B).join(B.cs), where "C" is a joined inh
class; however, this implicit alias was created only considering
the immediate left side, and not a longer chain of joins along different
joined-inh subclasses of the same base.   As long as we're still
implicitly aliasing in this case, the behavior is dialed back a bit
so that it will alias the right side in a wider variety of cases.
[ticket:2903]

select/alias on the base, where the PK columns were also not same
named; the persistence system would fail to copy primary key values
from the base table to the inherited table upon INSERT.
[ticket:2885]

- remove informix, maxdb, access symbols from tests etc.