summaryrefslogtreecommitdiff
path: root/lib/sqlalchemy/sql/expression.py
Commit message (Collapse)AuthorAgeFilesLines
* docsMike Bayer2014-01-261-35/+131
|
* updatesMike Bayer2014-01-261-63/+92
|
* tweak textMike Bayer2014-01-251-4/+10
|
* importsMike Bayer2014-01-251-0/+4
|
* caseMike Bayer2014-01-251-44/+136
|
* - start building out very comprehensive docstrings for core functionsMike Bayer2014-01-251-106/+445
|
* docuemnt joinMike Bayer2014-01-241-16/+87
|
* - Fixed bug with :meth:`.Insert.from_select` method where the orderMike Bayer2013-12-191-1/+9
| | | | | | | | of the given names would not be taken into account when generating the INSERT statement, thus producing a mismatch versus the column names in the given SELECT statement. Also noted that :meth:`.Insert.from_select` implies that Python-side insert defaults cannot be used, since the statement has no VALUES clause. [ticket:2895]
* - Fixed bug where :func:`.type_coerce` would not interpret ORMMike Bayer2013-10-211-2/+2
| | | | | | | | elements with a ``__clause_element__()`` method properly. [ticket:2849] Conflicts: lib/sqlalchemy/sql/elements.py
* - add a type_coerce() step within Enum, Boolean to the CHECK constraint,Mike Bayer2013-10-201-0/+3
| | | | | | | | | | | | so that the custom type isn't exposed to an operation that is against the "impl" type's constraint, [ticket:2842] - this change showed up as some recursion overflow in pickling with labels, add a __reduce__() there....pickling of expressions is less and less something that's very viable... Conflicts: lib/sqlalchemy/sql/elements.py lib/sqlalchemy/sql/sqltypes.py
* A :func:`.select` that is made to refer to itself in its FROM clause,Mike Bayer2013-10-081-0/+3
| | | | | | | | | typically via in-place mutation, will raise an informative error message rather than causing a recursion overflow. [ticket:2815] Conflicts: lib/sqlalchemy/sql/selectable.py
* additoinalMike Bayer2013-08-211-2/+18
| | | | | | cherry pick of 9302be39a5f40b537ff43e1990c7a210c464cf1c from 0.9 Conflicts: lib/sqlalchemy/sql/selectable.py
* - The :meth:`.Operators.notin_` operator added in 0.8 now properlyMike Bayer2013-08-071-1/+4
| | | | | produces the negation of the expression "IN" returns when used against an empty collection. Also in 0.8.3.
* - Fixed bug in common table expression system where if the CTE wereMike Bayer2013-07-311-4/+4
| | | | | | used only as an ``alias()`` construct, it would not render using the WITH keyword. Also in 0.7.11. [ticket:2783]
* - use inline=True for the insert..select here so it works on oracleMike Bayer2013-07-121-0/+11
|
* Fixed bug where the expression system relied upon the ``str()``Mike Bayer2013-07-121-1/+4
| | | | | | | | | | | | form of a some expressions when referring to the ``.c`` collection on a ``select()`` construct, but the ``str()`` form isn't available since the element relies on dialect-specific compilation constructs, notably the ``__getitem__()`` operator as used with a Postgresql ``ARRAY`` element. The fix also adds a new exception class :class:`.UnsupportedCompilationError` which is raised in those cases where a compiler is asked to compile something it doesn't know how to. [ticket:2780]
* - Added new method to the :func:`.insert` constructMike Bayer2013-07-051-2/+49
| | | | | | | | | | :meth:`.Insert.from_select`. Given a list of columns and a selectable, renders ``INSERT INTO (table) (columns) SELECT ..``. While this feature is highlighted as part of 0.9 it is also backported to 0.8.3. [ticket:722] - The :func:`.update`, :func:`.insert`, and :func:`.delete` constructs will now interpret ORM entities as FROM clauses to be operated upon, in the same way that select() already does.
* - rework of correlation, continuing on #2668, #2746Mike Bayer2013-06-261-43/+111
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | - add support for correlations to propagate all the way in; because correlations require context now, need to make sure a select enclosure of any level takes effect any number of levels deep. - fix what we said correlate_except() was supposed to do when we first released #2668 - "the FROM clause is left intact if the correlated SELECT is not used in the context of an enclosing SELECT..." - it was not considering the "existing_froms" collection at all, and prohibited additional FROMs from being placed in an any() or has(). - add test for multilevel any() - lots of docs, including glossary entries as we really need to define "WHERE clause", "columns clause" etc. so that we can explain correlation better - based on the insight that a SELECT can correlate anything that ultimately came from an enclosing SELECT that links to this one via WHERE/columns/HAVING/ORDER BY, have the compiler keep track of the FROM lists that correspond in this way, link it to the asfrom flag, so that we send to _get_display_froms() the exact list of candidate FROMs to correlate. no longer need any asfrom logic in the Select() itself - preserve 0.8.1's behavior for correlation when no correlate options are given, not to mention 0.7 and prior's behavior of not propagating implicit correlation more than one level.. this is to reduce surprises/hard-to-debug situations when a user isn't trying to correlate anything. Conflicts: doc/build/changelog/changelog_08.rst doc/build/changelog/changelog_09.rst lib/sqlalchemy/sql/compiler.py
* Provided a new attribute for :class:`.TypeDecorator`Mike Bayer2013-06-221-2/+5
| | | | | | | | | | | | called :attr:`.TypeDecorator.coerce_to_is_types`, to make it easier to control how comparisons using ``==`` or ``!=`` to ``None`` and boolean types goes about producing an ``IS`` expression, or a plain equality expression with a bound parameter. [ticket:2744] Conflicts: doc/build/changelog/changelog_09.rst
* fix this testMike Bayer2013-05-261-1/+1
|
* Show the conflicting column in the warning!Chris Withers2013-05-261-2/+2
|
* heh dont need that eitherMike Bayer2013-04-251-7/+1
|
* dont need thisMike Bayer2013-04-251-6/+0
|
* everything passes with this!!!!!!! holy crap !!!!! and its the simplest of allMike Bayer2013-04-251-2/+14
|
* Fully implemented the IS and IS NOT operators withMike Bayer2013-04-221-12/+34
| | | | | | | | | | regards to the True/False constants. An expression like ``col.is_(True)`` will now render ``col IS true`` on the target platform, rather than converting the True/ False constant to an integer bound parameter. This allows the ``is_()`` operator to work on MySQL when given True/False constants. [ticket:2682]
* A major fix to the way in which a select() object producesMike Bayer2013-04-111-6/+40
| | | | | | | | | | | | | | | | | | | labeled columns when apply_labels() is used; this mode produces a SELECT where each column is labeled as in <tablename>_<columnname>, to remove column name collisions for a multiple table select. The fix is that if two labels collide when combined with the table name, i.e. "foo.bar_id" and "foo_bar.id", anonymous aliasing will be applied to one of the dupes. This allows the ORM to handle both columns independently; previously, 0.7 would in some cases silently emit a second SELECT for the column that was "duped", and in 0.8 an ambiguous column error would be emitted. The "keys" applied to the .c. collection of the select() will also be deduped, so that the "column being replaced" warning will no longer emit for any select() that specifies use_labels, though the dupe key will be given an anonymous label which isn't generally user-friendly. [ticket:2702]
* no need to use getattr() hereMike Bayer2013-03-171-0/+2
|
* doc updatesMike Bayer2013-03-111-29/+29
|
* - repair doctest for SQL expression tutorialMike Bayer2013-03-111-1/+35
| | | | | | | | - remove most use of "whereclause" and "from_obj", not done yet, part of [ticket:2679] - add links to method chained versions for all Select.append_XYZ() calls - add "method chaining" and "generative" to glossary
* - since correlation is now always at least semi-automatic, remove theMike Bayer2013-03-091-28/+30
| | | | | | ability for correlation to have any effect for a SELECT that's stated in the FROM. - add a new exhaustive test suite for correlation to test_compiler
* Changed behavior of Select.correlate() to ignore correlations to froms that ↵Luke Cyca2013-03-071-25/+34
| | | | don't exist in the superquery.
* - A clear error message is emitted if an event handlerMike Bayer2013-02-251-1/+8
| | | | | | | | | | attempts to emit SQL on a Session within the after_commit() handler, where there is not a viable transaction in progress. [ticket:2662] - rework how SessionTransaction maintains state, using symbols instead. - add lots of notes and cross-linking for session events. - add a link to :func:`.select()` within :meth:`.FromClause.select`.
* The :meth:`.ColumnOperators.in_` operator will now coerceMike Bayer2013-02-021-0/+2
| | | | | values of ``None`` to :func:`.null`. [ticket:2496]
* happy new year (see #2645)Diana Clarke2013-01-011-1/+1
|
* Fixed bug whereby using a label_length on dialect that was smallerMike Bayer2012-12-081-6/+11
| | | | | | than the size of actual column identifiers would fail to render the columns correctly in a SELECT statement. [ticket:2610]
* - multivalued inserts, [ticket:2623]Mike Bayer2012-12-081-55/+133
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - update "not supported" messages for empty inserts, mutlivalue inserts - rework the ValuesBase approach for multiple value sets so that stmt.parameters does store a list for multiple values; the _has_multiple_parameters flag now indicates which of the two modes the statement is within. it now raises exceptions if a subsequent call to values() attempts to call a ValuesBase with one mode in the style of the other mode; that is, you can't switch a single- or multi- valued ValuesBase to the other mode, and also if a multiple value is passed simultaneously with a kwargs set. Added tests for these error conditions - Calling values() multiple times in multivalue mode now extends the parameter list to include the new parameter sets. - add error/test if multiple *args were passed to ValuesBase.values() - rework the compiler approach for multivalue inserts, back to where _get_colparams() returns the same list of (column, value) as before, thereby maintaining the identical number of append() and other calls when multivalue is not enabled. In the case of multivalue, it makes a last-minute switch to return a list of lists instead of the single list. As it constructs the additional lists, the inline defaults and other calculated default parameters of the first parameter set are copied into the newly generated lists so that these features continue to function for a multivalue insert. Multivalue inserts now add no additional function calls to the compilation for regular insert constructs. - parameter lists for multivalue inserts now includes an integer index for all parameter sets. - add detailed documentation for ValuesBase.values(), including careful wording to describe the difference between multiple values and an executemany() call. - add a test for multivalue insert + returning - it works ! - remove the very old/never used "postgresql_returning"/"firebird_returning" flags.
* merge latest defaultMike Bayer2012-12-081-5/+6
|\
| * fixing broken links (see #2625)Diana Clarke2012-12-051-2/+2
| |
| * - BinaryExpression now keeps track of "left" and "right" as passed in,Mike Bayer2012-12-021-3/+4
| | | | | | | | | | so that they can be compared in ``__nonzero__`` prior to their self_group() step. [ticket:2621]
* | updatebase: add support for multi parametersIdan Kamara2012-12-061-9/+22
|/
* just a pep8 pass of lib/sqlalchemy/sql/Diana Clarke2012-11-191-28/+118
|
* Fixed bug in type_coerce() whereby typing informationMike Bayer2012-11-121-0/+2
| | | | | | | | could be lost if the statement were used as a subquery inside of another statement, as well as other similar situations. Among other things, would cause typing information to be lost when the Oracle/mssql dialects would apply limit/offset wrappings. [ticket:2603]
* Fixed bug whereby the ".key" of a Column wasn't beingMike Bayer2012-10-311-2/+4
| | | | | | | used when producing a "proxy" of the column against a selectable. This probably didn't occur in 0.7 since 0.7 doesn't respect the ".key" in a wider range of scenarios. [ticket:2597]
* - add class_ to AliasedInspMike Bayer2012-10-261-0/+17
| | | | | | - redefine inspect(Class.attrname).parent to be always an inspectable target; either Mapper or AliasedInsp - add most major features to 08 migration, document, link
* Added :meth:`.ColumnOperators.notin_`,Mike Bayer2012-10-241-0/+3
| | | | | | :meth:`.ColumnOperators.notlike`, :meth:`.ColumnOperators.notilike` to :class:`.ColumnOperators`. [ticket:2580]
* - [feature] "scalar" selects now have a WHERE methodMike Bayer2012-10-151-5/+9
| | | | | | | | | | | | | | | | | | | | to help with generative building. Also slight adjustment regarding how SS "correlates" columns; the new methodology no longer applies meaning to the underlying Table column being selected. This improves some fairly esoteric situations, and the logic that was there didn't seem to have any purpose. - [feature] Some support for auto-rendering of a relationship join condition based on the mapped attribute, with usage of core SQL constructs. E.g. select([SomeClass]).where(SomeClass.somerelationship) would render SELECT from "someclass" and use the primaryjoin of "somerelationship" as the WHERE clause. This changes the previous meaning of "SomeClass.somerelationship" when used in a core SQL context; previously, it would "resolve" to the parent selectable, which wasn't generally useful. Related to [ticket:2245].
* - use our new Cls.memoized_name._reset(self) method in place of all those ↵Mike Bayer2012-09-231-4/+4
| | | | | | __dict__.pop(), remove reset_memoized
* - aaand actually get is/isnot to be usable with None/NULLMike Bayer2012-09-221-2/+5
|
* - [bug] Added missing operators is_(), isnot()Mike Bayer2012-09-221-0/+2
| | | | | | to the ColumnOperators base, so that these long-available operators are present as methods like all the other operators. [ticket:2544]
* - [bug] CompileError is raised when VARCHAR withMike Bayer2012-09-101-1/+1
| | | | | no length is attempted to be emitted, same way as MySQL. [ticket:2505]
View Lorry Controller Status