delta/python-packages/sqlalchemy.git/examples/sharding, branch rel_1_2

Post black reformatting

2019-01-06T16:51:20+00:00

Applied on top of a pure run of black -l 79 in
I7eda77fed3d8e73df84b3651fd6cfcfe858d4dc9,  this set of changes
resolves all remaining flake8 conditions for those codes
we have enabled in setup.cfg.

Included are resolutions for all remaining flake8 issues
including shadowed builtins, long lines, import order, unused
imports, duplicate imports, and docstring issues.

Change-Id: I4f72d3ba1380dd601610ff80b8fb06a2aff8b0fe

Run black -l 79 against all source files

2019-01-06T06:31:01+00:00

This is a straight reformat run using black as is, with no edits
applied at all.

The black run will format code consistently, however in
some cases that are prevalent in SQLAlchemy code it produces
too-long lines.   The too-long lines will be resolved in the
following commit that will resolve all remaining flake8 issues
including shadowed builtins, long lines, import order, unused
imports, duplicate imports, and docstring issues.

Change-Id: I7eda77fed3d8e73df84b3651fd6cfcfe858d4dc9

Add Query.lazy_load_from attribute for sharding

2018-06-04T16:30:28+00:00

Added new attribute :attr:`.Query.lazy_loaded_from` which is populated
with an :class:`.InstanceState` that is using this :class:`.Query` in
order to lazy load a relationship.  The rationale for this is that
it serves as a hint for the horizontal sharding feature to use, such that
the identity token of the state can be used as the default identity token
to use for the query within id_chooser().

Also repaired an issue in the :meth:`.Result.with_post_criteria`
method added in I899808734458e25a023142c2c5bb37cbed869479
for :ticket:`4128` where the "unbake subquery loaders" version was calling
the post crtieria functions given the :class:`.Result` as the argument
rather than applying them to the :class:`.Query`.

Change-Id: I3c0919ce7fd151b80fe2f9b5f99f60df31c2d73d
Fixes: #4243
(cherry picked from commit a574b409296ef793cec8e1d00f1f7be48f15325e)

Add an identity_token to the identity key

2017-12-22T16:36:53+00:00

For the purposes of assisting with sharded setups, add a new
member to the identity key that can be customized.  this allows
sharding across databases where the primary key space is shared.

Change-Id: Iae3909f5d4c501b62c10d0371fbceb01abda51db
Fixes: #4137

Maul the evaulate & friends typo

2014-12-19T17:32:27+00:00

Fix many typos throughout the codebase

2014-04-26T20:13:13+00:00

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

- add a new sphinx extension "viewsource". takes advantage of part of the viewcode extension

2013-11-10T00:42:01+00:00

to allow ad-hoc display of the source of any file, as well as a "directory listing" structure.
- reorganize examples/ to take advantage of new extension.  in particular, keep moving all
the descriptive text for files etc. into module docstrings, taking more advantage of
self-documentation.

-whitespace bonanza, contd

2012-07-28T21:05:50+00:00

trailing whitespace bonanza

2012-07-28T19:50:05+00:00

- Fixed the attribute shard example to check

2011-06-26T17:00:58+00:00

    for bind param callable correctly in 0.7
    style.