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* Spelling fixespr/266Ville Skyttä2016-05-039-53/+53
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* - Added :meth:`.Select.lateral` and related constructs to allowMike Bayer2016-03-294-10/+77
| | | | | for the SQL standard LATERAL keyword, currently only supported by Postgresql. fixes #2857
* - Added support for rendering "FULL OUTER JOIN" to both Core and ORM.Mike Bayer2016-03-282-11/+33
| | | | Pull request courtesy Stefan Urbanek. fixes #1957
* - Fixed bug where the negation of an EXISTS expression would notMike Bayer2016-03-212-1/+13
| | | | | | | be properly typed as boolean in the result, and also would fail to be anonymously aliased in a SELECT list as is the case with a non-negated EXISTS construct. fixes #3682
* Raise exception when we have multiple values with an unknown column. Fixes ↵Athena Yao2016-03-021-1/+1
| | | | #3666.
* - unfortunately calling upon "_label" here makes it unclear ifMike Bayer2016-02-261-2/+4
| | | | | | | we're trying to hit columns without names yet and such, to suit the bug right now just make it specific to FunctionElement (cherry picked from commit 785224a92f39bd5bdd05bbc66f4dd79736abded5)
* - Anonymous labeling is applied to a :attr:`.func` construct that isMike Bayer2016-02-261-1/+1
| | | | | | | | | passed to :func:`.column_property`, so that if the same attribute is referred to as a column expression twice the names are de-duped, thus avoiding "ambiguous column" errors. Previously, the ``.label(None)`` would need to be applied in order for the name to be de-anonymized. fixes #3663
* - additional adjustment to the fix made in ↵Mike Bayer2016-02-211-1/+4
| | | | | | | | | | | | | | | 8ad968f33100baeb3b13c7e0b724b6b79ab4277f for ref #3657. The Oracle dialect makes more use of the "select_wraps_for" feature than SQL server because Oracle doesn't have "TOP" for a limit-only select, so tests are showing more happening here. In the case where the select() has some dupe columns, these are deduped from the .c collection so a positional match between the wrapper and original can't use .inner_columns, because these collections wont match. Using _columns_plus_names instead which is the deduped collection that determines the SELECT display, which definitely have to match up. (cherry picked from commit aa9ce3f521f254da9879ede011e520ec35b8270e)
* - reworked the way the "select_wraps_for" expression isMike Bayer2016-02-201-7/+3
| | | | | | | | | | | | | | | | | | | | | | | handled within visit_select(); this attribute was added in the 1.0 series to accommodate the subquery wrapping behavior of SQL Server and Oracle while also working with positional column targeting and no longer relying upon "key fallback" in order to target columns in such a statement. The IBM DB2 third-party dialect also has this use case, but its implementation is using regular expressions to rewrite the textual SELECT only and does not make use of a "wrapped" select at this time. The logic no longer attempts to reconcile proxy set collections as this was not deterministic, and instead assumes that the select() and the wrapper select() match their columns postionally, at least for the column positions they have in common, so it is now very simple and safe. fixes #3657. - as a side effect of #3657 it was also revealed that the strategy of calling upon a ResultProxy._getter was not correctly calling into NoSuchColumnError when an expected column was not present, and instead returned None up to loading.instances() to produce NoneType failures; added a raiseerr argument to _getter() which is called when we aren't expecting None, fixes #3658.
* - further edit the unnest() example to suit PG's esoteric requirementsMike Bayer2016-02-181-4/+6
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* - handle parameter sets that aren't correctly formed, so thatMike Bayer2016-02-171-1/+1
| | | | | for example an exception object made within a test suite can still repr (error seen in Keystone)
* - do the trailing comma logic of tuple repr() exactlyMike Bayer2016-02-171-4/+7
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* - All string formatting of bound parameter sets and result rows forMike Bayer2016-02-171-10/+107
| | | | | | | | | logging, exception, and ``repr()`` purposes now truncate very large scalar values within each collection, including an "N characters truncated" notation, similar to how the display for large multiple-parameter sets are themselves truncated. fixes #2837
* - use same colname as the alias we give to the PG functionMike Bayer2016-02-161-2/+2
| | | | here, fixes #3652
* - CTE functionality has been expanded to support all DML, allowingMike Bayer2016-02-115-170/+272
| | | | | | | INSERT, UPDATE, and DELETE statements to both specify their own WITH clause, as well as for these statements themselves to be CTE expressions when they include a RETURNING clause. fixes #2551
* - A refinement to the logic which adds columns to the resulting SQL whenMike Bayer2016-02-091-0/+22
| | | | | | | | | | | | | :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
* - oracle requires GLOBAL hereMike Bayer2016-02-031-1/+1
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* - add literal_binds for delete() statements in addition to insert()/update()Mike Bayer2016-02-031-1/+1
| | | | | - move tests to CRUDTest - changelog, fixes #3643
* fix passing literal_binds flag through for update and insertpr/232Tim Tate2016-02-022-4/+5
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* - add changelog and migration notes for new Enum features,Mike Bayer2016-02-021-49/+126
| | | | | | | | | | | | fixes #3095, #3292 - reorganize enum constructor to again work with the MySQL ENUM type - add a new create_constraint flag to Enum to complement that of Boolean - reinstate the CHECK constraint tests for enum, these already fail /skip against the MySQL backend - simplify lookup rules in Enum, have them apply to all varieties of Enum equally
* - Initial implementation of support for PEP-435 enumerated typesAlex Grönholm2016-02-021-5/+72
| | | | within the Enum type.
* - Fixed issue where inadvertent use of the Python ``__contains__``Mike Bayer2016-02-022-1/+5
| | | | | | | | | override with a column expression (e.g. by using ``'x' in col``) would cause an endless loop in the case of an ARRAY type, as Python defers this to ``__getitem__`` access which never raises for this type. Overall, all use of ``__contains__`` now raises NotImplementedError. fixes #3642
* - happy new yearMike Bayer2016-01-2919-19/+19
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* - unfortunately we need to match within join where col.key does not matchMike Bayer2016-01-261-2/+1
| | | | | what's given so we need to use a set() here. contains_column is not within any performance paths
* - rework ColumnCollection to no longer persist "all_col_set"; we don'tMike Bayer2016-01-261-20/+9
| | | | | | | | | | | | | need this collection except in the extend/update uses where we create it ad-hoc. simplifies pickling. Compatibility with 1.0 should be OK as ColumnColleciton uses __getstate__ in any case and the __setstate__ contract hasn't changed. - Fixed bug in :class:`.Table` metadata construct which appeared around the 0.9 series where adding columns to a :class:`.Table` that was unpickled would fail to correctly establish the :class:`.Column` within the 'c' collection, leading to issues in areas such as ORM configuration. This could impact use cases such as ``extend_existing`` and others. fixes #3632
* - The workaround for right-nested joins on SQLite, where they are rewrittenMike Bayer2016-01-261-1/+1
| | | | | | | | | | as subqueries in order to work around SQLite's lack of support for this syntax, is lifted when SQLite version 3.7.16 or greater is detected. fixes #3634 - The workaround for SQLite's unexpected delivery of column names as ``tablename.columnname`` for some kinds of queries is now disabled when SQLite version 3.10.0 or greater is detected. fixes #3633
* - generalize the verbiage on LargeBinary so that it doesn'tMike Bayer2016-01-201-10/+5
| | | | create confusion for inherited classes such as BYTEA, fixes
* - calling str() on a core sql construct has been made more "friendly",Mike Bayer2016-01-193-1/+37
| | | | | | | | | | when the construct contains non-standard sql elements such as returning, array index operations, or dialect-specific or custom datatypes. a string is now returned in these cases rendering an approximation of the construct (typically the postgresql-style version of it) rather than raising an error. fixes #3631 - add within_group to top-level imports - add eq_ignore_whitespace to sqlalchemy.testing imports
* - A deep improvement to the recently added :meth:`.TextClause.columns`Mike Bayer2016-01-143-17/+71
| | | | | | | | | | | | | | | | | | | method, and its interaction with result-row processing, now allows the columns passed to the method to be positionally matched with the result columns in the statement, rather than matching on name alone. The advantage to this includes that when linking a textual SQL statement to an ORM or Core table model, no system of labeling or de-duping of common column names needs to occur, which also means there's no need to worry about how label names match to ORM columns and so-forth. In addition, the :class:`.ResultProxy` has been further enhanced to map column and string keys to a row with greater precision in some cases. fixes #3501 - reorganize the initialization of ResultMetaData for readability and complexity; use the name "cursor_description", define the task of "merging" cursor_description with compiled column information as its own function, and also define "name extraction" as a separate task. - fully change the name we use in the "ambiguous column" error to be the actual name that was ambiguous, modify the C ext also
* - fix some old verbiage that refers to text() as an "implicit" thingMike Bayer2016-01-141-8/+7
| | | | | for SQL fragments; we've deprecated that in 1.0 and its a good idea to document like this for 0.9 as well.
* - convert keys to str for None not sortable against str on py3kMike Bayer2016-01-121-1/+1
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* - reorganize schema_translate_map to be succinct and gain the performanceMike Bayer2016-01-113-33/+68
| | | | back by using an attrgetter for the default case
* - Multi-tenancy schema translation for :class:`.Table` objects is added.Mike Bayer2016-01-082-31/+81
| | | | | | | | | This supports the use case of an application that uses the same set of :class:`.Table` objects in many schemas, such as schema-per-user. A new execution option :paramref:`.Connection.execution_options.schema_translate_map` is added. fixes #2685 - latest tox doesn't like the {posargs} in the profile rerunner
* - fix docstringsMike Bayer2016-01-081-15/+16
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* - long lineMike Bayer2016-01-061-1/+2
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* - Added :class:`.mysql.JSON` for MySQL 5.7. The JSON type providesMike Bayer2016-01-066-77/+318
| | | | | | | | | | | | | | | | | | | | | | | | | | persistence of JSON values in MySQL as well as basic operator support of "getitem" and "getpath", making use of the ``JSON_EXTRACT`` function in order to refer to individual paths in a JSON structure. fixes #3547 - Added a new type to core :class:`.types.JSON`. This is the base of the PostgreSQL :class:`.postgresql.JSON` type as well as that of the new :class:`.mysql.JSON` type, so that a PG/MySQL-agnostic JSON column may be used. The type features basic index and path searching support. fixes #3619 - reorganization of migration docs etc. to try to refer both to the fixes to JSON that helps Postgresql while at the same time indicating these are new features of the new base JSON type. - a rework of the Array/Indexable system some more, moving things that are specific to Array out of Indexable. - new operators for JSON indexing added to core so that these can be compiled by the PG and MySQL dialects individually - rename sqltypes.Array to sqltypes.ARRAY - as there is no generic Array implementation, this is an uppercase type for now, consistent with the new sqltypes.JSON type that is also not a generic implementation. There may need to be some convention change to handle the case of datatypes that aren't generic, rely upon DB-native implementations, but aren't necessarily all named the same thing.
* - Fixed 1.0 regression where the eager fetch of cursor.rowcount wasMike Bayer2016-01-051-0/+6
| | | | | | | | no longer called for an UPDATE or DELETE statement emitted via plain text or via the :func:`.text` construct, affecting those drivers that erase cursor.rowcount once the cursor is closed such as SQL Server ODBC and Firebird drivers. fixes #3622
* - Fixed an assertion that would raise somewhat inappropriatelyMike Bayer2015-12-231-3/+7
| | | | | | | | if a :class:`.Index` were associated with a :class:`.Column` that is associated with a lower-case-t :class:`.TableClause`; the association should be ignored for the purposes of associating the index with a :class:`.Table`. fixes #3616
* some spelling fixesjonathan vanasco2015-12-161-3/+3
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* - a few tweaks to allow "server_defaults" to be a little more linkable;Mike Bayer2015-12-141-2/+10
| | | | | | | remove "undoc members" that was putting some random server_default atributes from ColumnClause (cherry picked from commit 270301890ae87ec32a46bb17889d9776b7de1468)
* - Fixed bug in :meth:`.Update.return_defaults` which would cause allMike Bayer2015-12-141-0/+1
| | | | | | | | | | | | | | insert-default holding columns not otherwise included in the SET clause (such as primary key cols) to get rendered into the RETURNING even though this is an UPDATE. - Major fixes to the :paramref:`.Mapper.eager_defaults` flag, this flag would not be honored correctly in the case that multiple UPDATE statements were to be emitted, either as part of a flush or a bulk update operation. Additionally, RETURNING would be emitted unnecessarily within update statements. fixes #3609
* - Fixed issue within the :meth:`.Insert.from_select` construct wherebyMike Bayer2015-12-091-2/+3
| | | | | | | | | | | the :class:`.Select` construct would have its ``._raw_columns`` collection mutated in-place when compiling the :class:`.Insert` construct, when the target :class:`.Table` has Python-side defaults. The :class:`.Select` construct would compile standalone with the erroneous column present subsequent to compilation of the :class:`.Insert`, and the the :class:`.Insert` statement itself would fail on a second compile attempt due to duplicate bound parameters. fixes #3603
* - Fixed bug where CREATE TABLE with a no-column table, but a constraintMike Bayer2015-12-011-1/+1
| | | | | | | such as a CHECK constraint would render an erroneous comma in the definition; this scenario can occur such as with a Postgresql INHERITS table that has no columns of its own. fixes #3598
* Merge remote-tracking branch 'origin/pr/216'Mike Bayer2015-11-301-2/+2
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| * - Postgres: Do not prefix table with schema in: "FOR UPDATE of <table>"pr/216Diana Clarke2015-11-241-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | For example, this query: SELECT s1.users.name FROM s1.users FOR UPDATE OF s1.users should actually be: SELECT s1.users.name FROM s1.users FOR UPDATE OF users fixes #3573
* | - Added support for parameter-ordered SET clauses in an UPDATEMike Bayer2015-11-283-62/+114
|/ | | | | | | | | | statement. This feature is available by passing the :paramref:`~.sqlalchemy.sql.expression.update.preserve_parameter_order` flag either to the core :class:`.Update` construct or alternatively adding it to the :paramref:`.Query.update.update_args` dictionary at the ORM-level, also passing the parameters themselves as a list of 2-tuples. Thanks to Gorka Eguileor for implementation and tests. adapted from pullreq github:200
* - fix missing argument in TypeDecorator.copy(), fixes #3584, references #2919Mike Bayer2015-11-131-2/+2
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* - correct the commit from ref #3582 to refer to the correct sub-elementMike Bayer2015-11-111-1/+1
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* - Fixed bug where the "single table inheritance" criteria would beMike Bayer2015-11-111-0/+15
| | | | | | | added onto the end of a query in some inappropriate situations, such as when querying from an exists() of a single-inheritance subclass. fixes #3582
* Merge branch 'pr204'Mike Bayer2015-10-291-2/+3
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