The sqlalchemy_exasol dialect needs to support Exasol 4.x which does not support 
the OFFSET feature. Mark test with testing.requires.offset so that they can be skipped
of in the exasol specific test suite.

to protect against unknown conditions when splicing inner joins
together within joined eager loads with ``innerjoin=True``; if
some of the joins use a "secondary" table, the assertion needs to
unwrap further joins in order to pass.
fixes #3412

:ticket:`3341` where in the unusual case of a constraint that refers
to a mixture of :class:`.Column` objects and string column names
at the same time, the auto-attach-on-column-attach logic will be
skipped; for the constraint to be auto-attached in this case,
all columns must be assembled on the target table up front.
Added a new section to the migration document regarding the
original feature as well as this change.
fixes #3411

function patched onto config.  nose/pytest backends now fill
in their exception class here only when loaded
- use more public seeming api to get at py.test Skipped
exception

off again so that test fixtures setup/teardown instrumentation as
expected
- clean up test_extendedattr.py and fix it to no longer leak
itself outside by ensuring _reinstall_default_lookups is always called,
part of #3408
- Fixed bug where when using extended attribute instrumentation system,
the correct exception would not be raised when :func:`.class_mapper`
were called with an invalid input that also happened to not
be weak referencable, such as an integer.
fixes #3408

correctly.
fixes #3406

as failing with the new 'entity' key value added to
:attr:`.Query.column_descriptions`, the logic to discover the "from"
clause is again reworked to accommodate columns from aliased classes,
as well as to report the correct value for the "aliased" flag in these
cases.
fixes #3409

where the check for query state on :meth:`.Query.update` or
:meth:`.Query.delete` compared the empty tuple to itself using ``is``,
which fails on Pypy to produce ``True`` in this case; this would
erronously emit a warning in 0.9 and raise an exception in 1.0.
fixes #3405

using descriptors; ensure that mock.patch() honors descriptor setters

old / new style, direct access, and ad-hoc patching and
unpatching as possible