- resolved some serious speed hits I missed, we need to ensure
only deannotated columns are used in the local/remote collections and soforth
so that hash lookups against mapped columns don't dig into __eq__()
- fix some other parity mismatches regarding stuff from [ticket:2453],
including finding another case where _deep_annotate() was doing the wrong thing,
new tests.
- [feature] Major rewrite of relationship()
internals now allow join conditions which
include columns pointing to themselves
within composite foreign keys. A new
API for very specialized primaryjoin conditions
is added, allowing conditions based on
SQL functions, CAST, etc. to be handled
by placing the annotation functions
remote() and foreign() inline within the
expression when necessary. Previous recipes
using the semi-private _local_remote_pairs
approach can be upgraded to this new
approach. [ticket:1401]
in the corresponding selectable to take into account clones
of the target column. fixes [ticket:2419]
- have _make_proxy() copy out the _is_clone_of attribute on the
new column so that even more corresponding_column() checks
work as expected for cloned elements.
- add a new test fixture so that mapped tests can be specified
using declarative.
- using new traversal that returns the product of both sides
of a binary, starting to work with (a+b) == (c+d) types of joins.
primaryjoins on functions working
- annotations working, including reversing local/remote when
doing backref
recursive descent with clone() + _copy_internals(). This is essentially
what it was doing anyway with lots of unnecessary steps.
Fix Alias() to honor the given clone() function which may have been the
reason the traversal hadn't been fixed sooner. Alias._copy_internals()
will specifically skip an alias of a Table
as a more specific form of what it was doing before. This may need to
be further improved such that ClauseAdapter or replacement_traverse()
send it some specific hints what not to dig into; **kw has been added
to all _copy_internals() to support this. replacement/clone traversal
is at least clear now.
- apply new no_replacement_traverse annotation to join created by
_create_joins(), fixes [ticket:2195]
- can replace orm.query "_halt_adapt" with "no_replacement_traverse"
place these should be used
- Executable disallows "compiled_cache" option for now which was previously being ignored
[ticket:2131]
- Query now passes execution options to the Connection rather than the statement
so that all options are allowed including compiled cache.
classes, produces the _Over() construct which
in turn generates "window functions", i.e.
"<window function> OVER (PARTITION BY <partition by>,
ORDER BY <order by>)".
[ticket:1844]
outside of "sqlalchemy" and under "test/".
Rationale:
- coverage plugin works without issue, without need for an awkward
additional package install
- command line for "nosetests" isn't polluted with SQLAlchemy options
[ticket:1949]
which support it. This includes SQLite, MySQL, Postgresql, Firebird,
Oracle (already used binds with ROW NUMBER OVER), MSSQL (when ROW NUMBER
is used, not TOP). Not included are Informix, Sybase, MaxDB, Access
[ticket:805]
- LIMIT/OFFSET parameters need to stay as literals within SQL
constructs. This because they may not be renderable as binds on
some backends.
passed to the resulting statement. Currently only
Select-statements have these options, and the only option
used is "stream_results", and the only dialect which knows
"stream_results" is psycopg2.
- Query.yield_per() will set the "stream_results" statement
option automatically.
- Added "statement_options()" to Selects, which set statement
specific options. These enable e.g. dialect specific options
such as whether to enable using server side cursors, etc.
- The psycopg2 now respects the statement option
"stream_results". This option overrides the connection setting
"server_side_cursors". If true, server side cursors will be
used for the statement. If false, they will not be used, even
if "server_side_cursors" is true on the
connection. [ticket:1619]
- added a "frozendict" from http://code.activestate.com/recipes/414283/,
adding more default collections as immutable class vars on
Query, Insert, Select
Mike Bayer