This test is failing on windows due to the new SQlite
provisioning that seemed to be failing to delete schema files
as they are still used by the main connection.

Change-Id: I51093212ebfe1053f26b279c56c8fec0408806da

Mypy 1.1.1 has been released which includes a non-compliant pep-681
implementation that fails with SQLAlchemy's :class:`.MappedAsDataclass` and
similar features. In order to work around this issue until Mypy is able to
release a fix, as well as to support other typing tools which may have
non-compliant pep-681 implementations, document a workaround class
for :class:`.MappedAsDataclass`.

Including this class as well as a decorator was considered, but overall
this is an issue with typing tools that they will have to resolve
and I'm not ready to set up for this issue going on long term.  There's
also no good solution for the decorator version since you have to
have an ``__init__`` method indicated somewhere.

References: https://github.com/python/mypy/issues/13856
Fixes: #9467
Change-Id: I1be6abea7f7fc72883c14ab2447edad937d0c23f

SQL Server has been failing on this test for a month as it does
not allow a PK on VARCHAR(max)

Change-Id: I3f43e660275e03ced1b584fe9d3c7f34f5558330

try to get file naming to be more sane for pysqlite file databases

Change-Id: I68ad8c2f6c6c25930fbffdd79b8d429cd7a7dd9a

in I4e0b627bfa187f1780dc68ec81b94db1c78f846a the 1.4 version has more
changes than the main version, which failed to get the entire change,
yet the whole thing was merged.   Restore the missing mutex related
code to the main version.

Fixed regression where the fix for :ticket:`8098`, which was released in
the 1.4 series and provided a layer of concurrency-safe checks for the
lambda SQL API, included additional fixes in the patch that failed to be
applied to the main branch. These additional fixes have been applied.

Change-Id: Id172e09c421dafa6ef1d40b383aa4371de343864
References: #8098
Fixes: #9461