Commit Graph

1629 Commits

Author SHA1 Message Date
mike bayer 8e9e473dcb Merge "correct for "autocommit" deprecation warning" 2020-12-11 19:39:04 +00:00
Mike Bayer ba5cbf9366 correct for "autocommit" deprecation warning
Ensure no autocommit warnings occur internally or
within tests.

Also includes fixes for SQL Server full text tests
which apparently have not been working at all for a long
time, as it used long removed APIs.  CI has not had
fulltext running for some years and is now installed.

Change-Id: Id806e1856c9da9f0a9eac88cebc7a94ecc95eb96
2020-12-11 13:26:05 -05:00
mike bayer b8a1282bc2 Merge "add aiomysql support" 2020-12-11 16:52:48 +00:00
Mike Bayer 5f333762db add aiomysql support
This is a re-gerrit of the original gerrit
merged in Ia8ad3efe3b50ce75a3bed1e020e1b82acb5f2eda
Reverted due to ongoing issues.

Fixes: #5747
Change-Id: I2b57e76b817eed8f89457a2146b523a1cab656a8
2020-12-10 17:11:46 -05:00
Gord Thompson b71e46f047 Implement TypeEngine.as_generic
Added :meth:`_types.TypeEngine.as_generic` to map dialect-specific types,
such as :class:`sqlalchemy.dialects.mysql.INTEGER`, with the "best match"
generic SQLAlchemy type, in this case :class:`_types.Integer`.  Pull
request courtesy Andrew Hannigan.

Abstract away how we check for "overridden methods" so it is more
clear what the intent is and that the methodology can be
independently tested.

Fixes: #5659
Closes: #5714
Pull-request: https://github.com/sqlalchemy/sqlalchemy/pull/5714
Pull-request-sha: 91afb9a0ba

Change-Id: Ic54d6690ecc10dc69e6e72856d5620036cea472a
2020-12-08 19:54:05 -05:00
Federico Caselli 302e18eb75 Properly render `cycle=False and order=False`
These get rendered as ``NO CYCLE`` and ``NO ORDER`` in
:class:`_sql.Sequence` and :class:`_sql.Identity` objects.

Fixes: #5738
Change-Id: Ia9ccb5481a104cb32d3b517e99efd5e730c84946
2020-12-01 23:49:17 +01:00
Mike Bayer 3241e3ca72 Don't emit warnings on descriptor access
This commit is revising 5162f2bc5f, which
when I did it felt a little rushed but I couldn't find anything
wrong.  Well here we are :).

Fixed issue where a :class:`.RemovedIn20Warning` would erroneously emit
when the ``.bind`` attribute were accessed internally on objects,
particularly when stringifying a SQL construct.

Alter the deprecated() decorator so that we can use it just to add
docstring warnings but not actually warn when the function is
accessed, adding new argument enable_warnings that can be
set to False.

Added a safety feature to deprecated_20() that will disallow an
":attr:" from proceeding if enable_warnings=False isn't present,
unless there's an extra flag
warn_on_attribute_access, since we want Session.transaction to
emit a deprecation warning.  This is a little hacky but it's essentially
modifying the decorator to require a positive assertion that
a deprecation decorator on a descriptor should actually warn
on access.

Remove the warning filter for session.transaction and get
tests to pass to ensure this is not also being called
internally.

Added tests to ensure that common places .bind can be passed
as a parameter definitely warn as I was not able to find
this otherwise.

Fixes: #5717
Change-Id: Ia586b4f9ee6b212f3a71104b1caf40b5edd399e2
2020-11-20 14:14:30 -05:00
Mike Bayer 5b674ac631 Allow multiple returning() calls
Multiple calls to "returning", e.g. :meth:`_sql.Insert.returning`,
may now be chained to add new columns to the RETURNING clause.

Fixes: #5695
Change-Id: Ie2dac4162f686c730e000e31dccfb38f9ce9c96e
2020-11-11 11:57:59 -05:00
Mike Bayer 1f7969ae50 Warn / raise for returning() / return_defaults() combinations
A warning is emmitted if a returning() method such as
:meth:`_sql.Insert.returning` is called multiple times, as this does not
yet support additive operation.  Version 1.4 will support additive
operation for this.  Additionally, any combination of the
:meth:`_sql.Insert.returning` and :meth:`_sql.Insert.return_defaults`
methods now raises an error as these methods are mutually exclusive;
previously the operation would fail silently.

Fixes: #5691
Change-Id: Id95e0f9da48bba0b59439cb26564f0daa684c8e3
2020-11-11 11:36:06 -05:00
mike bayer 75fb71d25e Merge "Allow dialect-specific stringification" 2020-11-08 18:05:54 +00:00
Mike Bayer c6d869f814 Allow dialect-specific stringification
Dialect-specific constructs such as
:meth:`_postgresql.Insert.on_conflict_do_update` can now stringify in-place
without the need to specify an explicit dialect object.  The constructs,
when called upon for ``str()``, ``print()``, etc. now have internal
direction to call upon their appropriate dialect rather than the
"default"dialect which doesn't know how to stringify these.   The approach
is also adapted to generic schema-level create/drop such as
:class:`_schema.AddConstraint`, which will adapt its stringify dialect to
one indicated by the element within it, such as the
:class:`_postgresql.ExcludeConstraint` object.

mostly towards being able to provide doctest-style
examples for "on conflict" constructs using print statements.

Change-Id: I4b855516fe6dee2df77744c1bb21a373d7fbab93
2020-11-08 12:45:34 -05:00
Mike Bayer 80be40300d Convert to autoload_with internally
Fixed bug where the now-deprecated ``autoload`` parameter was being called
internally within the reflection routines when a related table were
reflected.

Fixes: #5684
Change-Id: I6ab439a2f49ff1ae2d3c7a15b531cbafbc3cf594
2020-11-07 11:13:28 -05:00
mike bayer 78d60e108e Merge "tutorial 2.0 WIP" 2020-10-31 19:50:07 +00:00
Mike Bayer 654b462d66 tutorial 2.0 WIP
Add SelectBase.exists() method as it seems strange this is
not available already.  The Exists construct itself does
not provide full SELECT-building capabilities so it makes
sense this should be used more like a scalar_subquery.

Make sure stream_results is getting set up when yield_per
is used, for 2.0 style statements as well.  this was
hardcoded inside of Query.yield_per() and is now moved
to take place within QueryContext.

Change-Id: Icafcd4fd9b708772343d56edf40995c9e8f835d6
2020-10-31 13:44:53 -04:00
mike bayer c67b338590 Merge "Deprecate bind args, execute() methods that were missed" 2020-10-31 01:05:01 +00:00
Mike Bayer 0718add371 Deprecate bind args, execute() methods that were missed
in particular text(bind), DDL.execute().

Change-Id: Ie85ae9f61219182f5649f68e5f52b4923843199c
2020-10-30 20:22:13 -04:00
jonathan vanasco 9ddbd585a6 Apply underscore naming to several more operators
The operator changes are:

* `isfalse` is now `is_false`
* `isnot_distinct_from` is now `is_not_distinct_from`
* `istrue` is now `is_true`
* `notbetween` is now `not_between`
* `notcontains` is now `not_contains`
* `notendswith` is now `not_endswith`
* `notilike` is now `not_ilike`
* `notlike` is now `not_like`
* `notmatch` is now `not_match`
* `notstartswith` is now `not_startswith`
* `nullsfirst` is now `nulls_first`
* `nullslast` is now `nulls_last`

Because these are core operators, the internal migration strategy for this
change is to support legacy terms for an extended period of time -- if not
indefinitely -- but update all documentation, tutorials, and internal usage
to the new terms.  The new terms are used to define the functions, and
the legacy terms have been deprecated into aliases of the new terms.

Fixes: #5435
Change-Id: Ifbd7cb1cdda5981990243c4fc4b4ff467dc132ac
2020-10-30 10:02:29 -04:00
Mike Bayer 3e49b8d051 Ensure no compiler visit method tries to access .statement
Fixed structural compiler issue where some constructs such as MySQL /
PostgreSQL "on conflict / on duplicate key" would rely upon the state of
the :class:`_sql.Compiler` object being fixed against their statement as
the top level statement, which would fail in cases where those statements
are branched from a different context, such as a DDL construct linked to a
SQL statement.

Fixes: #5656
Change-Id: I568bf40adc7edcf72ea6c7fd6eb9d07790de189e
2020-10-19 13:13:15 -04:00
Mike Bayer 296c84313a Ensure escaping of percent signs in columns, parameters
Improved support for column names that contain percent signs in the string,
including repaired issues involving anoymous labels that also embedded a
column name with a percent sign in it, as well as re-established support
for bound parameter names with percent signs embedded on the psycopg2
dialect, using a late-escaping process similar to that used by the
cx_Oracle dialect.

* Added new constructor for _anonymous_label() that ensures incoming
  string tokens based on column or table names will have percent
  signs escaped; abstracts away the format of the label.

* generalized cx_Oracle's quoted_bind_names facility into the compiler
  itself, and leveraged this for the psycopg2 dialect's issue with
  percent signs in names as well.  the parameter substitution is now
  integrated with compiler.construct_parameters() as well as the
  recently reworked set_input_sizes(), reducing verbosity in the
  cx_Oracle dialect.

Fixes: #5653

Change-Id: Ia2ad13ea68b4b0558d410026e5a33f5cb3fbab2c
2020-10-17 13:15:57 -04:00
Mike Bayer 5162f2bc5f Add deprecation for base Executable.bind
These attributes will be removed in SQLAlchemy 2.0.

Also alters the deprecation message to qualify the
type of object correctly.  this in turn requires changes
in the warnings filter and deprecation tests.

Change-Id: I5779d9813e88f42e5db0c7b5e3ffff1d1535c203
2020-10-16 19:15:58 -04:00
mike bayer 3fcdb7cca0 Merge "Deprecate bound metadata" 2020-10-12 19:51:53 +00:00
Mike Bayer c76e3776f5 Deprecate bound metadata
The :paramref:`_schema.MetaData.bind` argument as well as the overall
concept of "bound metadata" is deprecated in SQLAlchemy 1.4 and will be
removed in SQLAlchemy 2.0.  The parameter as well as related functions now
emit a :class:`_exc.RemovedIn20Warning` when :ref:`deprecation_20_mode` is
in use.

Added new parameter :paramref:`_automap.AutomapBase.prepare.autoload_with`
which supersedes :paramref:`_automap.AutomapBase.prepare.reflect`
and :paramref:`_automap.AutomapBase.prepare.engine`.

Fixes: #4634
Fixes: #5142

Change-Id: Iaabf9b481931e2fb68b97b5954c32e65772a298e
2020-10-12 13:57:43 -04:00
Mike Bayer 9e82f32f27 Deprecate duplicated column names in Table definition
The :class:`_schema.Table` class now raises a deprecation warning
when columns with the same name are defined. To replace a column a new
parameter :paramref:`_schema.Table.append_column.replace_existing` was
added to the :meth:`_schema.Table.append_column` method.

The :meth:`_expression.ColumnCollection.contains_column` will now
raises an error when called with a string, suggesting the caller
to use ``in`` instead.

Co-authored-by: Federico Caselli <cfederico87@gmail.com>
Change-Id: I1d58c8ebe081079cb669e7ead60886ffc1b1a7f5
2020-10-12 13:52:06 -04:00
mike bayer a3e2eb7c3c Merge "Repair reduction in Over" 2020-10-12 17:45:10 +00:00
Mike Bayer 9322de12f5 Repair reduction in Over
Fixed issue where a plain pickle dumps call of the :class:`_sql.Over`
construct didn't work.

Fixes: #5644
Change-Id: I4b07f74ecd5d52f0794128585367012200a38a36
2020-10-12 12:48:17 -04:00
Mike Bayer 286fe9b0b1 Ensure all cursor self.handle_exception() calls are covered
Fixes: #5642
Change-Id: I07a77483e6e2ec593d87d3d3467a4339c5f77a26
2020-10-12 12:31:10 -04:00
Mike Bayer 785d9ac61c limit "no identity" test to a hardcoded dialect
this test can't require "skip identity_columns" because
older Postgresql and Oracle report false for "identity_columns",
but their dialects won't skip actually rendering.

for now the only option is to hardcode to a non-identity
dialect.

Change-Id: Ia4f39f393b4ba10b3e82601a22ab75200cd52909
2020-10-07 00:50:53 -04:00
Mike Bayer dfb9405267 modernize requirements for boolean constraint test
this test was not actually working correctly against
mariadb and was "failing" (i.e. "passing") inappropriately
for pymysql, mysqlclient. it also started "passing" (i.e. "failing")
for mariadb as of 1.0.3.

modernize reqs here including for mssql bit behavior.

Change-Id: Ia88ee607ec8d59f6140a7e4a1174910382d53674
2020-10-06 23:46:03 -04:00
Federico Caselli 34e6b732a1 Fetch first support
Add support to ``FETCH {FIRST | NEXT} [ count ] {ROW | ROWS}
 {ONLY | WITH TIES}`` in the select for the supported backends,
currently PostgreSQL, Oracle and MSSQL.

Fixes: #5576
Change-Id: Ibb5871a457c0555f82b37e354e7787d15575f1f7
2020-10-02 21:34:24 +02:00
Mike Bayer 9586594754 raise on lower-case column shared to multiple tables
Fixed bug where an error was not raised for lower-case
:func:`_column` added to lower-case :func:`_table` object. This now raises
:class:`_exc.ArgumentError` which has always been the case for
upper-case :class:`_schema.Column` and :class:`_schema.Table`.

Fixes: #5618
Change-Id: Ifcbdf27c022fd2996a5b99559df71fc1c1e0f19c
2020-09-30 09:37:02 -04:00
Mike Bayer f483573aa6 Scan for tables without relying upon whereclause
Fixed bug where an UPDATE statement against a JOIN using MySQL multi-table
format would fail to include the table prefix for the target table if the
statement had no WHERE clause, as only the WHERE clause were scanned to
detect a "multi table update" at that particular point.  The target
is now also scanned if it's a JOIN to get the leftmost table as the
primary table and the additional entries as additional FROM entries.

Fixes: #5617
Change-Id: I26d74afebe06e28af28acf960258f170a1627823
2020-09-29 16:46:56 -04:00
Federico Caselli 7362d454f4 Add reflection for Identity columns
Added support for reflecting "identity" columns, which are now returned
as part of the structure returned by :meth:`_reflection.Inspector.get_columns`.
When reflecting full :class:`_schema.Table` objects, identity columns will
be represented using the :class:`_schema.Identity` construct.

Fixed compilation error on oracle for sequence and identity column
``nominvalue`` and ``nomaxvalue`` options that require no space in them.

Improved test compatibility with oracle 18.

As part of the support for reflecting :class:`_schema.Identity` objects,
the method :meth:`_reflection.Inspector.get_columns` no longer returns
``mssql_identity_start`` and ``mssql_identity_increment`` as part of the
``dialect_options``. Use the information in the ``identity`` key instead.

The mssql dialect will assume that at least MSSQL 2005 is used.
There is no hard exception raised if a previous version is detected,
but operations may fail for older versions.

Fixes: #5527
Fixes: #5324
Change-Id: If039fe637c46b424499e6bac54a2cbc0dc54cb57
2020-09-28 18:11:12 -04:00
Mike Bayer c3f102c9fe upgrade to black 20.8b1
It's better, the majority of these changes look more readable to me.
also found some docstrings that had formatting / quoting issues.

Change-Id: I582a45fde3a5648b2f36bab96bad56881321899b
2020-09-28 15:17:26 -04:00
Gord Thompson 75ac0abc7d Add deprecation warning for .join().alias()
The :meth:`_sql.Join.alias` method is deprecated and will be removed in
SQLAlchemy 2.0.   An explicit select + subquery, or aliasing of the inner
tables, should be used instead.

Fixes: #5010
Change-Id: Ic913afc31f0d70b0605f9a7af2742a0de1f9ad19
2020-09-28 12:08:04 -04:00
Mike Bayer 7e864fc7b1 Create a framework to allow all SQLALCHEMY_WARN_20 to pass
As the test suite has widespread use of many patterns
that are deprecated, enable SQLALCHEMY_WARN_20 globally
for the test suite but then break the warnings filter
out into a whole list of all the individual warnings
we are looking for.  this way individual changesets
can target a specific class of warning, as many of these
warnings will indivdidually affect dozens of files
and potentially hundreds of lines of code.

Many warnings are also resolved here as this
patch started out that way.   From this point
forward there should be changesets that target a
subset of the warnings at a time.

For expediency, updates some migration 2.0 docs
for ORM as well.

Change-Id: I98b8defdf7c37b818b3824d02f7668e3f5f31c94
2020-09-16 12:31:05 -04:00
jonathan vanasco fe413084c5 Rename Core expression isnot, not_in_
Several operators are renamed to achieve more consistent naming across
SQLAlchemy.

The operator changes are:

* `isnot` is now `is_not`
* `not_in_` is now `not_in`

Because these are core operators, the internal migration strategy for this
change is to support legacy terms for an extended period of time -- if not
indefinitely -- but update all documentation, tutorials, and internal usage
to the new terms.  The new terms are used to define the functions, and
the legacy terms have been deprecated into aliases of the new terms.

Fixes: #5429
Change-Id: Ia1e66e7a50ac35d3f6260d8bf6ba3ce8087cbad2
2020-09-14 11:34:49 -04:00
mike bayer a2f2863f5a Merge "Raname `mustexit to must_exist`" 2020-09-12 16:36:00 +00:00
mike bayer dad484e7fa Merge "Do not specify type on mssql by default" 2020-09-12 16:26:39 +00:00
Federico Caselli 1d40a4ae15 Do not specify type on mssql by default
Make optional sequences render as identity in mssql
Remove unused dialect option sequence_default_column_type

Change-Id: I821eeffcb442f8d1b69186a9b798b15c3d8d6ff3
2020-09-12 10:00:23 -04:00
Federico Caselli e860060866 Update select usage to use the new 1.4 format
This change includes mainly that the bracketed use within
select() is moved to positional, and keyword arguments are
removed from calls to the select() function.  it does not
yet fully address other issues such as keyword arguments passed
to the table.select().

Additionally, allows False / None to both be considered
as "disable" for all of select.correlate(), select.correlate_except(),
query.correlate(), which establishes consistency with
passing of ``False`` for the legact select(correlate=False)
argument.

Change-Id: Ie6c6e6abfbd3d75d4c8de504c0cf0159e6999108
2020-09-08 17:13:48 -04:00
Mike Bayer b0e9083eb2 Don't rely on string col name in adapt_to_context
fixed an issue where even though the method claims to be
matching up columns positionally, it was failing on that by
looking in "keymap" based on string name.

Adds a new member to the _keymap recs MD_RESULT_MAP_INDEX
so that we can efficiently link from the generated keymap
back to the compiled._result_columns structure without
any ambiguity.

Fixes: #5559

Change-Id: Ie2fa9165c16625ef860ffac1190e00575e96761f
2020-09-06 09:55:27 -04:00
Federico Caselli bcfb12f813 Raname `mustexit to must_exist`
:class:`_schema.Table` parameter ``mustexist`` has been renamed
to :paramref:`_schema.Table.must_exist` and will now warn when used.

Change-Id: I0b0ca6021f9f7cfbe2040bbc1125a2236ac79f53
2020-09-03 23:46:35 +02:00
mike bayer 406034d41a Merge "internal test framework files for standardization of is_not/not_in;" 2020-08-30 14:33:08 +00:00
jonathan vanasco 672087176e internal test framework files for standardization of is_not/not_in;
this is safe for 1.3.x

Change-Id: Icba38fdc20f5d8ac407383a4278ccb346e09af38
2020-08-29 12:05:58 -04:00
Federico Caselli b1b97ed1fc Add support for regular expression on supported backend.
Two operations have been defined:

* :meth:`~.ColumnOperators.regexp_match` implementing a regular
  expression match like function.
* :meth:`~.ColumnOperators.regexp_replace` implementing a regular
  expression string replace function.

Fixes: #1390
Change-Id: I44556846e4668ccf329023613bd26861d5c674e6
2020-08-27 17:30:18 -04:00
Federico Caselli 9ab4da7018 Updates for MariaDB sequences
MariaDB should not run a Sequence if it has optional=True.
Additionally, rework the rules in crud.py to accommodate the
new combination MariaDB brings us, which is a dialect
that supports both cursor.lastrowid, explicit sequences,
*and* no support for returning.

Co-authored-by: Mike Bayer <mike_mp@zzzcomputing.com>
Fixes: #5528
Change-Id: I9a8ea69a34983affa95dfd22186e2908fdf0d58c
2020-08-22 12:46:12 -04:00
Federico Caselli 26e8d3b5bd Add support for identity columns
Added the :class:`_schema.Identity` construct that can be used to
configure identity columns rendered with GENERATED { ALWAYS |
BY DEFAULT } AS IDENTITY. Currently the supported backends are
PostgreSQL >= 10, Oracle >= 12 and MSSQL (with different syntax
and a subset of functionalities).

Fixes: #5362
Fixes: #5324
Fixes: #5360

Change-Id: Iecea6f3ceb36821e8b96f0b61049b580507a1875
2020-08-19 00:34:23 +02:00
Mike Bayer 8bc793c4db Deliver straight BinaryExpr w/ no negate for any() / all()
Adjusted the :meth:`_types.ARRAY.Comparator.any` and
:meth:`_types.ARRAY.Comparator.all` methods to implement a straight "NOT"
operation for negation, rather than negating the comparison operator.

Fixes: #5518
Change-Id: I87ee9278c321aafe51a679fcfcbb5fbb11307fda
2020-08-18 14:18:02 -04:00
mike bayer 1c1e038ac4 Merge "Create a real type for Tuple() and handle appropriately in compiler" 2020-08-17 19:56:30 +00:00
mike bayer ee99a879ac Merge "Bump minimum MySQL version to 5.0.2; use all-numeric server version" 2020-08-17 15:53:20 +00:00