This is achieved by inserting a fake entry in connection.queries when
not releasing a savepoint (since Oracle doesn't support that operation.)
Also removed the can_release_savepoints feature that was recently added,
but is superseded by this solution.
Backport of 40bfd856 from master.
Also fixes a slight issue in sqlite3.schema._remake_table where
default values where quoted with "column name" quoting rules.
Reference for quoting: http://www.sqlite.org/lang_expr.html
Thanks Shai Berger for the review. Refs #22424.
Backport of 6aacb4c991 from master
Avoided introducing a new regex-based SQL splitter in the migrations
framework, before we're bound by backwards compatibility.
Adapted this change to the legacy "initial SQL data" feature, even
though it's already deprecated, in order to facilitate the transition
to migrations.
sqlparse becomes mandatory for RunSQL on some databases (all but
PostgreSQL). There's no API to provide a single statement and tell
Django not to attempt splitting. Since we have a more robust splitting
implementation, that seems like a good tradeoff. It's easier to add a
new keyword argument later if necessary than to remove one.
Many people contributed to both tickets, thank you all, and especially
Claude for the review.
Refs #22401.
Backport of 8b5b199 from master
Since all state is maintained on the connection at this time and none in
the atomic, it doesn't matter, but it could introduce some subtle bugs
if the implementation changed in the future.
Backport of 0aa4c6c3 from master
Changed the migration autodetector to remove models last so that FK
and M2M fields will not be left as dangling references. Added a check
in the migration state renderer to error out in the presence of
dangling references instead of leaving them as strings. Fixed a bug
in the sqlite backend to handle the deletion of M2M fields with
"through" models properly (i.e., do nothing successfully).
Thanks to melinath for report, loic for tests and andrewgodwin and
charettes for assistance with architecture.
Backport of 956bd64424 from master
Refs #15802 -- Reverted #7c657b24 as BaseDatabaseWrapper.close() now
has a proper "finally" clause that may need to preserve self.connection.
Backport of 25860096 from master.
Fixed this for both implementations of _alter_many_to_many, instead of
in `alter_db_table` itself (more implementations).
Backport of 1edfa155e3 from master
This seems worthwhile in its own right, but also works around an Oracle
bug (in versions 10 -- 11.1) where the use of Unicode would reset the
date/time formats, causing ORA-01843 errors.
Thanks Trac users CarstenF for the report, jtiai for the initial patch,
and everyone who contributed to the discussion on the ticket.
Change database test settings from "TEST_"-prefixed entries in the
database settings dictionary to setting in a dictionary that is itself
an entry "TEST" in the database settings.
Refs #21775
Thanks Josh Smeaton for review.
Andrew Godwin
Shai Berger
Tim Graham
Aymeric Augustin
Aymeric Augustin
Claude Paroz
Alex Gaynor
Loic Bistuer
Raphaël Barrois
Simon Charette
Andrew Gorcester
Motiejus Jakštys
Chris Beaven
Daniel Hahler