delta/python-packages/sqlalchemy.git, branch ticket_2551

- changelog + migration notes

2016-02-11T17:05:48+00:00

- more tests

2016-02-11T16:57:56+00:00

- remove .columns method on UpdateBase since a returning()

2016-02-10T22:43:37+00:00

construct isn't intended to be used in SELECT queries directly
- implement a direct system within CTE to detect UpdateBase and
extract columns from returning directly

- fix parenthesization

2016-02-10T22:24:28+00:00

- restore implicit returning to INSERT, UPDATE
- tests from PG's docs

- move out isinsert/isupdate/isdelete state

2016-02-10T20:33:10+00:00

- step 1 - add cte(), some docs, a test, get to the point where

2016-02-10T19:06:41+00:00

we see that the "self.isupdate" thing is conflicting

- add more documentation to MutableDict explaining

2016-02-10T15:17:45+00:00

that this structure is only intended to track additions
and removals from the dictionary, not recursive tracking
of embedded changes.  fixes #3646.

- don't drop the ts1/ts2 databases without seeing the primary DB,

2016-02-10T02:08:21+00:00

because we never log in on the ts1/ts2.  races against other runs
and erases their DBs

- Fixed bug in :func:`.expression.text` construct where a double-colon

2016-02-09T23:05:40+00:00

expression would not escape properly, e.g. ``some\:\:expr``, as is most
commonly required when rendering Postgresql-style CAST expressions.
fixes #3644

- A refinement to the logic which adds columns to the resulting SQL when

2016-02-09T22:49:38+00:00

:meth:`.Query.distinct` is combined with :meth:`.Query.order_by` such
that columns which are already present will not be added
a second time, even if they are labeled with a different name.
Regardless of this change, the extra columns added to the SQL have
never been returned in the final result, so this change only impacts
the string form of the statement as well as its behavior when used in
a Core execution context.   Additionally, columns are no longer added
when the DISTINCT ON format is used, provided the query is not
wrapped inside a subquery due to joined eager loading.
fixes #3641