== 13.0.5 (2023-02-04)
* Improve query generation for cpk_in_predicate. This reduces the length of
queries when loading many keys and enables Postgres to use index scans
more frequently. (Andrew Kiellor)

== 13.0.4 (2022-12-05)
* Fix previously_new_record? not being set to true after create

== 13.0.3 (2022-01-09)
* Remove override on ActiveRecord::Base#to_param. That method has moved to Integration
  so no longer works. #541. (Charlie Savage)
* Check if an assocation is polymorhpic. Fixes #558.

== 13.0.2 (2022-01-09)
* Fix scoped associations take #2 (Charlie Savage)

== 13.0.1 (2021-11-14)
* Fix invalid sql generation for some cases of scoped associations (Ryan Mulligan)
* Fix unintentional connection to database (Kazuhiro Masuda)
* Zip values then keys - fixes #548 (Charlie Savage)

== 13.0.0 (2021-05-09)
* Update to ActiveRecord 6.1 (Javier Julio, Charlie Savage, Sammy Larbi)

== 12.0.10 (2021-05-09)
* Support using the #id method on records with primary keys that also have an :id attribute.

== 12.0.9 (2021-02-22)
* Third time is hopefully the charm on MySQL/MariaDB auto increment fix

== 12.0.8 (2021-02-16)
* Revert to previous MySQL/MariaDB auto increment fix

== 12.0.7 (2021-02-15)
* Switch to GitHub actions (ta1kt0me)
* Fix MySQL/MariaDB query cache issue bug introduced in version 12.0.3 - see #539 (Charlie Savage)
* Do a better job of supporting composite keys with an auto incrementing field for
  MySQL and MariaDB (Charlie Savage)

== 12.0.6 (2021-01-04)
* Fix issue when calling in_batches without a block (Charlie Savage)

== 12.0.5 (2020-12-31)
* Finally issue with SQLServer when tables are marked as exclude_output_inserted. See #535. (Charlie Savage)

== 12.0.4 (2020-12-30)
* Fix compatibility with Ruby Ruby 2.6 and below (ta1kt0me)
* Finally get SQLServer mass updates and deletes working (Charlie Savage)
* Fix MySQL mass updates and deletes that were broken by 12.0.3 (Charlie Savage)

== 12.0.3 (2020-11-11)
* Prevents infinite loops with gems which modify the 'attributes' method (Nicholas Guarino)
* Improve delete_all and update_all queries (Charlie Savage)
* Improve Oracle support (Charlie Savage)
* Improve SQL Server support. Note delete_all and update_all queries still do not work due to
  quirks in SQL Server syntax (Charlie Savage)
* Improve support for polymorphic associations (Charlie Savage)
* Update fixtures and tests to include a model that uses an :id column as part of a composite
  key (Charlie Savage)
* Fixed bug where id values were not correctly mapped between primary and foreign keys in associations (Charlie Savage)
* Cleanup how the gem is loaded (Charlie Savage)
* Remove older, unused or minimally used fixtures (Charlie Savage)

== 12.0.2 (2020-05-19)
* Remove deprecation warning for Ruby 2.7 due to keyword parameters (Alexandru Anca )
* Use sqlite for default in tests (Charlie Savage)
* Modernize gem tests by using Bundler (Charlie Savage)
* Update travis for ruby 2.7 (Charlie Savage)
* Port "Fix create record where one or more of the primary keys has a default value" from ar 5.2 branch (Charlie Savage)
* Remove extra argument from sql_for_insert for SqlServer (tohae)

== 12.0.1 (2019-11-25)
* Convert attribute names to strings before checking for them in has_attribute? (Daniel de Haas)
* Update the comment referring to the overridden Rails code (Daniel de Haas)

== 12.0.0 (2019-09-03)
* Update to ActiveRecord 6.0 (Hiroshi Kajisha, Alexandru Anca, Charlie Savage, Sammy Larbi)
* Update travis setup (Olle Jonsson, Charlie Savage)

==11.3.1 (2020-04-01)¶ ↑
* Fix overriding AbstractReflection for activerecord 5.2.4 (Sergey Semyonov)
* Fix handling CPK with fields containing comma (Sergey Semyonov)
* Fixed incorrect SQL condition for joining by CPK (Sergey Semyonov)
* Update travis.yml file (Sergey Semyonov)
* Add tests for composite keys with default values (Daniel Wiklund)
* Fix create record where one or more of the primary keys has a default value (Daniel Wiklund)

== 11.2.0 (2019-03-16)
* When creating new records, honor composite key autoincrementing fields if possible (Antti Pitkänen)
* Update Association#run to more closely match ActiveRecord (Fabian Mersch)
* Updates needed due to changes in ActiveRecord (Sammy Larbi)
* Fix construct_join_attributes method (Brad Slaughter)
* Fix destroy_all on HABTM (Brad Slaughter)

== 11.1.0 (2018-11-14)
* Support ActiveRecord 5.2.1 (S1Artem Tselovalnikov, Caleb Buxton, Charlie Savage)
* Fix counter cache (Tomonori Murakami)
* Fix error on autosave has_one relations when the :primary_key option is set (Charlie Savage)

== 11.0.3 (2018-06-25)
* Fix overridden attribute readers and writers (Charlie Savage)

== 11.0.2 (2018-06-24)
* Remove no longer needed overrides (Charlie Savage)

== 11.0.1 (2018-06-20)
* Fix in_batches (Urmo Rae)
* Fix apply_join_dependency (Charlie Savage)

== 11.0.0 (2018-06-18)
* Update to ActiveRecord 5.2 (Charlie Savage)
* Fixes for AR 5.2 persistence changes (Erik Rothoff, Charlie Savage)
* Fix system stack error (i2bskn)

== 11.0.0.rc2 (2018-02-25)

* Fix mysql deletion failure (Charlie Savage)
* Clean test run for postgresql, mysql and sqlite3 (Charlie Savage)

== 11.0.0.rc1 (2018-02-25)

* Update to ActiveRecord 5.2.rc1 (Charlie Savage)
* Fix uniquness check (Charlie Savage)

== 11.0.0.beta4 (2018-01-08)

* Try again on Calculations#execute_simple_calculation for ActiveRecord 5.2.beta2 (Charlie Savage)

== 11.0.0.beta3 (2018-01-07)

* Fix typo in Readme.doc (Lopez Lucien)
* Fix Calculations#execute_simple_calculation for ActiveRecord 5.2.beta2 (Charlie Savage)

== 11.0.0.beta2 (2017-12-10)

* Minor updates for ActiveRecord 5.2.beta2 support (Charlie Savage)

== 11.0.0.beta1 (2017-12-03)

* ActiveRecord 5.2.beta2 support (Charlie Savage)

== 10.0.5 (2018-06-24)
* Fix in_batches (Urmo Rae)

== 10.0.4 (2018-06-17)

* Lock mysql2 gem to 0.4.x (Le Trung Kien)
* Set inversion when using preload  (Le Trung Kien)
* Fixes for AR 5.1.6 (Tim Morgan)

== 10.0.3 (2018-02-25)

* Require a minimum of activerecord version 5.1.5 (Tom Hughes)

== 10.0.2 (2017-12-02)

* Fix frozen string mutation for mysql (Sergey Sein)
* Fix autosave for belongs_to associations (Fabian Mersch)
* Require a minimum of activerecord version 5.1.4 (Charlie Savage)

== 10.0.1 (2017-10-08)

* Fixed an error that happened when a table attribute had the same name as the table (Taishi Kasuga)

== 10.0.0 (2017-10-08)

* Support ActiveRecord 5.1.x (Pinak Thakkar, Jordan Owens)
* Fix Paper Trail compatibility (Sean Linsley)
* Fix typo in Readme (Mike Gunderloy)
* Improved sql server support (Artyom Nikolaev)

== 9.0.10 (2018-06-24)

* Fix AR 5.0.7 (Jordan Owens)

== 9.0.8 (2017-10-11)

* Fix Paper Trail compatibility (Sean Linsley)

== 9.0.7 (2017-05-22)

* Update sqlite3 to support deletes and updates (Charlie Savage)
* Specify version for sql server gem so it works with Rails 5.0 (Charlie Savage)
* Use `datetime` datatype to address Invalid default value for updated_at (Yasuo Honda)
* Fix ORA-00900 error when it attempts to execute blank statement (pustomytnyk)
* Override ActiveRecord::Associations::CollectionAssociation#ids_reader (pustomytnyk)
* Only define #primary_keys if #primary_keys=(value) is called (Charlie Savage)
* Change `timestamp` to `datetime` for MySQL as ActiveRecord timestamps type does (Oriol Collel)
* Fix incorrect case statement to get PK for SQLServer (Oriol Collel)
* Fixes random failures in test_preload_of_polymorphic_association (Boris Peterbarg)

== 9.0.6 (2017-01-08)

* Uncomment tests (Sammy Larbi)
* Update readme (Charlie Savage)

== 9.0.5 (2017-01-02)

* Don't nest PK twice when looking up id, fixes #319 (Kerey Roper)
* Simplify database setup  for tests (Charlie Savage)
* Revamp gem management (Charlie Savage)
* Add support for Relation#update_all when using joins (Charlie Savage)
* Add erb support to test database.yml files (Charlie Savage)
* Sqlserver fixes for ordering (Charlie Savage)
* Sqlserver refresh (Charlie Savage)
* Oracle refresh (Charlie Savage)
* Fix delete_all for MySql (Charlie Savage)
* Added test cases for preloading associations with and without conditions (Martin Körner)
* Revamp single association handling to correctly setup SQL binds (Charlie Savage)
* Remove references to ActiveModel - #352 (Charlie Savage)
* Fixes for #232, #359, #367 and #371 (Charlie Savage)

== 9.0.4 (2016-08-17)
* Do not set associations to readonly.  See https://github.com/rails/rails/issues/24093 (Charlie Savage)

== 9.0.2 (2016-08-10)
* Fix delete_all when used with a join (Charlie Savage)

== 9.0.1 (2016-07-27)
* Create OR predicates in a nicely balanced tree fixing #320 (Nathan Samson)

== 9.0.0 (2016-07-06)
* Support connection_specification_name in rails5.0.0.rc1 (pocari)

== 9.0.0.beta1 (2016-04-16)
* Rails 5 beta support (Sammy Larbi)

== 8.1.7 (2019-05-04)

Fix key not being an array in subquery on has_many :through (Eric Proulx)
Convert batches to arrays before continuing loop (Jeremy Mickelson)

== 8.1.6 (2017-05-20)

Query cache with bind params (ttw)
Fix TestIds#test_set_ids_string. Sqlite's serial and integer are a bit different (Boris Peterbarg)
Associations with inverse fix (Boris Peterbarg)
Fix save_has_one_association and add a test for it (Boris Peterbarg)
Fix save_belongs_to_association override (Boris Peterbarg)
Extend approach from #344 to fix autosave for has_one associations as well (Cameron Finucane)

== 8.1.5 (2017-01-01)

* Don't nest PK twice when looking up id, fixes #319 (Kerey Roper)

== 8.1.4 (2016-07-27)

* Create OR predicates in a nicely balanced tree fixing #320 (Nathan Samson)
* Fix find in batches (apurvis)

== 8.1.3 (2016-04-16)

* Make CPK work for Arel::Attributes::Attribute (Rick Xing)
* Change autosave_association.rb so that association autosave can work (Rick Xing)
* Fix exception when saving "other_ids=" with a has_many :through association where the source
  association is polymorphic (Tye Shavik)
* Fix Arel::Nodes::In where left side is not a column (Tye Shavik)

== 8.1.2 (2015-12-13)

* Fix failing tests

== 8.1.1 (2015-08-04)

* Updates to make Travis CI green (Laust Rud Jacobsen)
* Travis CI support (Laust Rud Jacobsen)
* Remove overriden Base#==(comparison_object) which had a different behavior than stock AR method
  for non-peristed objects (Charlie Savage)
* Update support for Uniquenes validations (Avi Leavitt)
* Remove call to verify_active_connections! which was removed from AR 4.1 (Steve Pletcher)
* Aligned the establish connection paramater handling to be similar to latest version of rails (Harish Shetty)


== 8.1.0 (2014-03-23)

* ActiveRecord 4.2.1 support (Charlie Savage)
* Change parsing of composite ids to fix #290 (Charlie Savage)
* Add sqlserver setting for test suite (Joachim Herb)
* Fix sqlserver adapater, isse #224 (Joachim Herb)
* Update readme file to include version 8.* information (David Silva)

== 8.0.1 (2014-01-24)

* Support optimistic lock and lock_version added to existing fixtures (Kirika)

== 8.0.0 (2014-01-10)

* ActiveRecord 4.2.* support (Sammy Larbi)

== 7.0.14 (2015-08-04)

* Remove overriden Base#==(comparison_object) which had a different behavior than stock AR method
  for non-peristed objects (Charlie Savage)
* Update support for Uniquenes validations (Avi Leavitt)
* Remove call to verify_active_connections! which was removed from AR 4.1 (Steve Pletcher)

== 7.0.13 (2015-01-24)

* Support optimistic lock and lock_version added to existing fixtures (Kirika)
* README change to convey finding available versions (Aaron Bartell)
* Fixes indentation in product_tariffs (Zaldabus)

== 7.0.12 (2014-11-09)

* ActiveRecord 4.1.7 support (Tom Hughes)
* Extract CPK methods to its own module and extending instead of opening the singleton class
  which fixes Marshal#dump (Nicolás Hock Isaza)

== 7.0.11 (2014-10-10)

* ActiveRecord 4.1.6 support (Tom Hughes, Charlie Savage)
* Verify MariaDB support and update docs (Isi Robayna)
* Postgresql binary column support (Piotr Gębala)
* Fix deleting of records from collection association (akeuk and Charlie Savage)
* Fix invalid include (shiro16)
* Improve tests (Yann Marquet)

== 7.0.10 (2014-08-07)

* Update attribute dirty methods to allow attribute *_was
  fields to be calculated correctly for enum fields (Zachary Salzbank)
* Update read/write methods to match latest version of ActiveRecord (Charlie Savage)

== 7.0.9 (2014-08-03)

* Second attemp at fixing instantiation of has_many records via :includes that use composite keys - this
  time take into account no target records (Charlie Savage)

== 7.0.8 (2014-08-03)

* Fix instantiation of has_many records via :includes that use composite keys (Charlie Savage)

== 7.0.7 (2014-07-29)

* Add back support for calling find like this (Sammy Larbi):

  Membership.find('1,1')

== 7.0.7 (2014-07-29)

* Add back support for calling find like this (Sammy Larbi):

  Membership.find('1,1')

== 7.0.6 (2014-07-22)

* Change the way we override ActiveRecord::Persistence to call sequence of included modules such
  as callbacks (Charlie Savage)

== 7.0.5 (2014-07-21)

* Remove overriden Postgresql adapter code (Charlie Savage)

== 7.0.4 (2014-07-09)

* Fix overriding of Relation#where_values_hash (Pavel)
* Add travis CI support (Pavel)
* Run AR's original relation_for_destroy when primary key is not composite (Pavel)

== 7.0.3 (2014-07-04)

* Fixes for Rails 4.1.2+ compatibility (Tom Hughes)
* Nested attribute fix (Sammy Larb)
* Test fixes (Sammy Larb)
* Fixes instantiating join records (Charlie Savage)

== 7.0.2 (2014-06-01)

* Fix id_was when one of the column names is called id (Adrian Hooper)
* Fix queries that use ActiveRecord objects in the where clause (Adrian Hooper)

== 7.0.1 (2014-05-27)

* Fix setting of timestamps automatically by Rails (Charlie Savage)

== 7.0.0 (2014-05-26)

* Active Record 4.1 support! (Charlie Savage, Tom Hughes, Simon South)

Note there is one big api change.  Previously, CPK supported both of these calls:

  Membership.find(1,1)
  Membership.find([1,1])

The first one no longer works.  It was removed because it made the internal code simpler
and makes the intention of the code clearer (especially when finding multiple records).
If this change causes too much pain then please submit a ticket on Github.

== 6.0.08 (2015-01-24)

* Fix habtm association #delete_records (Uros Jurglic)
* Support optimistic locking (Toshio Maki)
* Remove singleton classes on CPK relations (Nicolás Hock Isaza)

== 6.0.7 (2014-10-06)

* Support Rails 4.0.6 (Tom Hughes)

== 6.0.6 (2014-05-26)

* Don't refer to deprecated set_primary_keys in README (Henare Degan)
* Fix gemspec dependency (Charlie Savage)

== 6.0.5 (2014-05-20)

* Removed debugging output (Dan Draper)
* Fixes to ensure that has_one associations work correctly (Dan Draper)
* Fix postgres db migration failure since no result is returned in some cases (seashell-qd)
* Fix exception raised in method "id=" (seashell.qd@hotmail.com)

== 6.0.3 (2014-04-28)

* Fixes setting of primary key when CPK is not used for a given model (see #191)

== 6.0.2 (2014-04-28)

* Fixes relating to ActiveRecord 4.0.x compatibility (Dan Draper)
* Ensure that primary key is set on instance when creating new records (Dan Draper)

== 6.0.1 (2013-11-29)

* Handle records == :all in HasManyAssociation#delete_records. Without this calling
  delete or clear on a has_many assocation can result in an exception (Tom Hughes)
* Don't include cpk key as an attributes - fixes json serialization - #168 (Charlie Savage)
* Fix tests running on ruby 1.9.3 (Charlie Savage)
* Update nested_attributes to work with activerecord 4.0.x (Nick DeLuca)

== 6.0.0 (2013-08-04)
* ActiveRecord 4.0 support (Sammy Larbi)

== 5.0.13 2013-04-27
* Batch query improvements (Jordan Byron)
* Support nested attributes (aiasfina and Charlie Savage)

== 5.0.12 2013-01-21
* Fix HasManyAssociation foreign_key_present? method to work with non CPK assocations (Charlie Savage)

== 5.0.11 2013-01-19
* Patch HasManyAssociation foreign_key_present? method to work with array of keys (tbeauvais)
* Patch reverse_sql_order method to break apart CPKs (tbeauvais)
* Add test and fix for nested_attributes update (Dinshaw Gobhai)
* Add test and fix for to_sym exception (Dinshaw Gobhai)
* Add missing timestamp columns for mysql test_touch.rb (Dinshaw Gobhai)

== 5.0.10 2012-11-21
* ActiveRecord 3.2.9 compatability (Tom Hughes, Chris Heald, Jack Tang)
* Add support for find_in_batches (Charlie Savage)
* Add support for touch method (Macario Ortega)
* Remove symbolized representation of primary keys to be consistent with ActiveRecord (Tiago Cardoso)
* Update destroy method to use hash of primary keys over an array. This allows the proper SQL
  (using IS NULL) to be generated when one of the primary key attributes is nil (Scott Hunter).

== 5.0.9 2012-09-29
* Enable tests for MS SQL Servder (Enderson Maia)
* Update ActiveRecord::Base#initialize_dup override in line with ActiveRecord::Base 3.2.5+ (Lucas Maxwell)
* Require postgresql_adapter.rb also when using activerecord-postgis-adapter (Torsti Schulz)
* Make cpk_in_predicate build a simple IN when possible (Tom Hughes)
* Fixed problem loading jdbcpostgresql adapter (Troy Caldwell)
* Add support for counter cache (Charlie Savage)
* Fix recreating postgresql database (Charlie Savage)
* Update dependency to ActiveRecord 3.2.8 or higher (Charlie Savage)

== 5.0.8 2012-07-01
* Enabled tests for MS SQL Server (Enderson Maia)
* Update establish_connection to work with Rails 3.2.6 (Ivan Schneider)
* Fix typos in rake tasks names in README_tests.rdoc (Ivan Schneider)
* Fix problem with deleting non-CPK in Rails 3.2.5  (Sammy Larbi)
* Fixes relationship deletion for HABTM in Rails when it passes :all flag instead of
  an array of IDs.  Also adds new tests and test fixtures (Sammy Larbi)
* Change mysql db creation to execute one statement each time, since in some setups
  it will not run multiple statements (Sammy Larbi)
* Fix multiple assignments to same column due to duplicate keys in @changed_attributes.
  Includes test fixes (Jan Vlnas)

== 5.0.7 2012-06-03
* Fixed bug where validates_uniqueness failed for 3 or more primary keys. (Charlie Savage)

== 5.0.6 2012-05-20
* Fixed bug where setting a belongs_to association to nil would raise an error (Tyler Rick)
* Remove special case code for 1 column selects and just choose to use Rails version of the
  method unless we need ours to deal with an Array (Sammy Larbi)
* Change count tests to actually check for distinct, fix resulting error it
  demonstrated in the code (Sammy Larbi)
* Specify mysql2 driver by default (Charlie Savage)
* Update sqlite tests to run on Windows (Charlie Savage)

== 5.0.5 2012-05-05
* Count without slower subquery in cases where that is possible (Sammy Larbi)
* When you call association.build for a has_many association that uses a
  composite foreign key, the newly built child record should have the values
  in its belongs_to foreign_key populated from its owner's values (Tyler Rick).
* Removed test_has_many_with_primary_key method that wasn't being used because
  another method by the same name was defined below it (Tyler Rick).
* Fixed a bug that was causing object.changes to raise TypeError (Tyler Rick)
* Fix error when running rake mysql:rebuild_databases (Tyler Rick)
* to_param should join with comma instead of minus sign (Tsutomu Kuroda)
* Fix the "Factories" section of README.rdoc (Tsutomu Kuroda)

== 5.0.4 2012-03-23
* Update ActiveRecord::AttributeMethods#Write for Rails 3.2.2 (Travis Warlick)

== 5.0.4 2012-03-23
* Yanked

== 5.0.2 2012-03-16
* Use .rdoc extension on RDoc files (Elia Schito)
* Update documentation to use self.primary_keys instead of set_primary_keys (Miguel Fonseca)
* Added tests for comparing composite ids (Jim Jones)
* Updating the README for clarity (Brett Fishman)
* Fix method signature mismatch with active_record (Miguel Fonseca)
* Fix ref in README (Elia Schito)
* Add test for habm create (Charlie Savage)

== 5.0.1 2012-02-13
* Fix deprecation warning that was exactly backwards (Tom Hughes)
* Fix primary_keys handling in models that inherit from other models
  but don't redefine their primary_key.  Problem was the inherited
  models didn't correctly reference their parents primary_keys (Charlie Savage)

== 5.0.0 2012-02-12
* Fix tests so they pass on MySql (Charlie Savage)
* Fix calculations to work with duplicate column names (cleesmith)
* Switch rake tasks for Postgresql and MySql to use ActiveRecord API for
  creating and dropping databases (Charlie Savage)
* Follow AR 3.2 lead and introduce self.primary_keys and deprecate set_primary_keys (Charlie Savage)
* Switch from set_primary_key to self.primary_key= to avoid Rails deprecation (Charlie Savage)
* Fix issue when using multiple database connections (David Doan)
* Fix homepage in gemspec and remove email address (Charlie Savage)
* Add support for string keys to exists? (Jan Vlnas)
* Fix typo (Jason Karns)

== 5.0.0.rc1 2012-01-16
* ActiveRecord 3.2 support

== 4.1.2 2012-01-12
* Helper to allow the same tests to be used for both Oracle and other DBs
by replacing quoted identifiers with all-caps equivalents on Oracle (Rhett Sutphin)
* Update Oracle tests (Rhett Sutphin)

== 4.1.1 2011-08-31
* Support for AR 3.1.1
* Make polymorphic belongs_to work in rails 3.1.1 (Tom Hughes)
* Eliminate relative paths from the test suite (Rhett Sutphin)
* Minor improvements to the CPK test runner w/o relative path changes (Rhett Sutphin)
* Remove stray puts (Rhett Sutphin)
* Allow AR logs to go to a file when running tests.  This commit allows you to
  specify a file to use instead via the CPK_LOGFILE environment variable.
  STDOUT is still the default. (Rhett Sutphin)
* Use ADAPTER env variable to select database to test.  For example:

    ADAPTER=sqlite3 ruby test/test_suite.rb
    (Rhett Sutphin)

* Eliminate constant redef warnings during test runs (Rhett Sutphin)
* Add missing fixture declarations (Rhett Sutphin)
* Standardize on integer PKs in polymorphic fixtures  (Rhett Sutphin)
* Fix tiny file name typos (Buck)

== 4.0.0 2011-08-31
* Support for AR 3.1

== 4.0.0.beta9 2011-08-22
* Fix eager-loading in AR 3.1.rc6.

== 4.0.0.beta9 2011-082-22
* Fix eager-loading in AR 3.1.rc6.

== 4.0.0.beta8 2011-082-22
* Sqlite 3 fixes (Jan Vlnas)
* Fixes for to_key method (Jan Vlnas)
* Compatible with Rails 3.1 RC6 (Ari Epstein, Travis Warlick)

== 4.0.0.beta7 2011-07-26
* Compatible with Rails 3.1 RC5 (TycoooN)
* Do not use Arel::Nodes::Or to combine predicates because it creates a
  deeply nested stack that blows up.

== 4.0.0.beta4 2011-07-22
* Compatible with Rails 3.1 stable branch.  No longer works with RC4 (Charlie Savage)
* Do not require loading of postgresql gem unless needed (Charlie Savage)

== 4.0.0.beta3 2011-07-08
* Fix the ability to update the values of a primary key (Travis Warlick)
* Support port and host configurations for postgres rake tasks (Travis Warlick)

== 4.0.0.beta2 2011-06-21
* ActiveRecord 3.1 RC4 compatibility.
* Fix instantiation of CPK models with included associations

== 4.0.0.beta1 2011-06-09
* ActiveRecord 3.1 RC1 compatibility.  This required a significant rewrite due to
  all the changes in AR 3.1 versus 3.0.

== 3.1.11 2012-05-20
Fix AssociationReflection#derive_primary_key for belongs_to relationships (Heinrich Lee Yu).

== 3.1.10 2011-07-08
* Bugfix for belongs_to with includes (John Ash)
* Improved tests for calling clear on a habtm association, which involved (David Rueck)
* Fixed bug that resulted in unrelated records being deleted when calling (David Rueck)
* Output deprecation warnings about extra columns in join table CPK-aware (David Rueck)


== 3.1.9 2011-06-04
* Improve HABTM association tests (David Rueck)
* Remove deprecated Rake tasks (Charlie Savage)

== 3.1.8 2011-05-26
* Fix calling clear on a HABTM associate (David Rueck)

== 3.1.7 2011-05-26
* Support regular AR models having one or many composite models (Jacques Fuentes)
* Minor test cleanup (Charlie Savage)
* Make version requirements more explicit (Charlie Savage)
* Remove Arel extensions used for calculations (Charlie Savage)
* Fix test that included wrong error constant

== 3.1.6 2011-04-03
* Updated belongs_to association to be a bit more flexible with non-CPK (Charlie Savage)
  base models (Jacques Fuentes)
* Fix uniqueness check (David Rueck)
* Fix write issue when one of they keys in a composite key is
  called id (Tom Hughes)


== 3.1.5 2011-03-24
* Fix simple calculation methods (Charlie Savage)
* Fix instantiation of cpk records via associations  (Charlie Savage)
* Fix Relation#delete (Charlie Savage)
* Fix Relation#destroy (Charlie Savage)


== 3.1.4 2011-03-06
* Support ActiveRecord 3.0.5 - interpolate_sql was removed and
  replaced by interpolate_and_sanitize_sql (Charlie Savage)
* Fix persistence methods to support destroy callbacks (Charlie Savage)
* Support rake 0.9.0 beta (Charlie Savage)


== 3.1.2 2011-02-26
* Add back in support for find('3,3') which makes it possible to
  do find(params[id]).  This implementation is simpler than earlier version
  improving code readability.
* Support for finding multiple records either via find([1,2], [3,4])
* Remove to_composite_ids method which is no longer needed


== 3.1.1 2011-02-07
* Implement id_before_type_cast (Jason Lewis)
* Add in tests for Model.includes(:other_model)
* Fix object comparison with nil in composite primary keys (StackNG)
* Make it easier to run tests with different database adapters (Toby Cabot)
* Fix AssociationReflection#primary_key_name for polymorphic relationships (Dave Doan)


== 3.1.0 2010-12-17
* Add back in rake test tasks (Toby Cabot)
* Add support for multiple string composite keys (wouter)
* Remove support for find('3,3').  Instead use find([3,3])


== 3.0.9 2010-12-04
* Fix up support for composite key fixtures.


== 3.0.8 2010-12-04
* Fix for translation issue in unique validation.  Thanks to Daniel Berger for the patch.
* Fix to support child classes of composite primary key models


== 3.0.7 2010-11-29
* Fix has and belongs to many associations implementation.


== 3.0.6 2010-11-29  (yanked)
* Add full support for has and belongs to many associations.


== 3.0.5 2010-11-28 (yanked)
* Apply patch from Marian Rudzynski for fixing up attribute_methods/primary_key
* Apply patch from Toby Cabot to fix up various sqlite3 issues
* Add partial support for has and belongs to many associations.  Currently a cpk model
  can have a habtm, but a normal model cannot have a habtm to a cpk model (its actually
  not too hard to add, but one step at a time...)


== 3.0.4 2010-11-21
* Support deleting records when dependent is set to :delete_all
* Switch the method #id to return a CompositeKeys instance (thus going back to how
  this was done in previous CPK versions)


== 3.0.3 2010-11-19
* Support ActiveRecord 3.0.3 and Arel 2+
* Require ActiveRecord 3.0.3 as minimum dependency
* Fix double quoting issue with table names - thanks to Kevin Motschiedler for a patch.
* Fix SQLiteAdapter class inheritance issue - thanks to Brandon Hauff for a patch.


== 3.0.1.b3 2010-11-07

* Fix bug in joining to :has_one association
* Added support for Model.find(:last)
* Added support for finding via associations with
  limited ids.  For example find(:include => :foo, :limit => 1)

== 3.0.1.b2 2010-11-06

* Port to Rails 3.0 and Ruby 1.9.2

* Backwards compatability issues
  + You can no longer define a composite primary key with a single field.  If you
    try, your model will just default to a standard active record model.  Removing
    this corner case simplified the code.
  + Removed CompositePrimaryKeys::CompositeKeys.  This was done so that the #to_s
    method on composite ids, such as [1,2], returns "[1, 2]".  This in turns
    reduces the amount of core Rails code that needs to be overridden.
  + Setting attribute values by string is no longer supported. For example, this
    no longer works:
      my_record[[:main_id, :secondary_id]] = '1,2'
    Instead, do  this:
      my_record[[:main_id, :secondary_id]] = [1,2]
    Once again, this was done to reduce the amount of overridden Rails code
  + At the moment, complex finds with nested arrays do not work.  For example
    find([[1,2], [3,4]))
  + Count methods no longer work.  For example, Tariff.count(:include => :product_tariffs)
    in the TestAssociations#test_count test returns an error.  This is because Rails 3.0
    uses Arel to perform such calculations, and its not obvious (at least to me) how to
    hook into this new mechanism to support tables with composite keys.
  + The TestPolymorphic#test_polymorphic_has_many_through is currently failing, but this
    looks like an ActiveRecord 3.0 bug to me.

== 2.3.5.1 2010-02-13

* Resolved "warning: already initialized constant HasManyThroughCantAssociateThroughHasManyReflection" [Titi Ala'ilima]

== 2.3.5 2009-12-16

* Fixed several bugs in has_one and has_many associations when :primary_key specified [kpumuk]

== 2.3.2 2009-07-16

* explicitly load associations.rb due to some getting an unitialized constant error

== 2.3.2 2009-05-28

* get tests working again with AR 2.3.2

== 2.2.1 2009-01-21

* fix ActiveRecord#exists? to work when passing conditions instead of ids

== 2.2.0 2008-10-29

* Rails 2.2.0 compatibility

== 1.1.0 2008-10-29

* fixes to get cpk working for Rails 2.1.2

== 1.0.10 2008-10-22

* add composite key where clause creator method [timurv]

== 1.0.9 2008-09-08

* fix postgres tests
* fix for delete_records when has_many association has composite keys [darxriggs]
* more consistent table/column name quoting [pbrant]

== 1.0.8 2008-08-27

* fix has_many :through for non composite models [thx rcarver]

== 1.0.7 2008-08-12

* fix for the last fix -- when has_many is composite and belongs_to is single

== 1.0.6 2008-08-06

* fix associations create

== 1.0.5 2008-07-25

* fix for calculations with a group by clause [thx Sirius Black]

== 1.0.4 2008-07-15

* support for oracle_enhanced adapter [thx Raimonds Simanovskis]

== 1.0.3 2008-07-13

* more fixes and tests for has many through [thx Menno van der Sman]

== 1.0.2 2008-06-07

* fix for has many through when through association has composite keys

== 1.0.1 2008-06-06

* Oracle fixes

== 1.0.0 2008-06-05

* Support for Rails 2.1

== 0.9.93 2008-06-01

* set fixed dependency on activerecord 2.0.2

== 0.9.92 2008-02-22

* Support for has_and_belongs_to_many

== 0.9.91 2008-01-27

* Incremented activerecord dependency to 2.0.2 [thx emmanuel.pirsch]

== 0.9.90 2008-01-27

* Trial release for rails/activerecord 2.0.2 supported

== 0.9.1 2007-10-28

* Migrations fix - allow :primary_key => [:name] to work [no unit test] [thx Shugo Maeda]

== 0.9.0 2007-09-28

* Added support for polymorphs [thx nerdrew]
* init.rb file so gem can be installed as a plugin for Rails [thx nerdrew]
* Added ibm_db support [thx K Venkatasubramaniyan]
* Support for cleaning dependents [thx K Venkatasubramaniyan]
* Rafactored db rake tasks into namespaces
* Added namespaced tests (e.g. mysql:test for test_mysql)

== 0.8.6 / 2007-6-12

* 1 emergency fix due to Rails Core change
  * Rails v7004 removed #quote; fixed with connection.quote_column_name [thx nerdrew]

== 0.8.5 / 2007-6-5

* 1 change due to Rails Core change
  * Can no longer use RAILS_CONNECTION_ADAPTERS from Rails core
* 7 dev improvement:
  * Changed History.txt syntax to rdoc format
  * Added deploy tasks
  * Removed CHANGELOG + migrated into History.txt
  * Changed PKG_NAME -> GEM_NAME in Rakefile
  * Renamed README -> README.txt for :publish_docs task
  * Added :check_version task
  * VER => VERS in rakefile
* 1 website improvement:
  * website/index.txt includes link to "8 steps to fix other ppls code"

== 0.8.4 / 2007-5-3

* 1 bugfix
  * Corrected ids_list => ids in the exception message. That'll teach me for not adding unit tests before fixing bugs.

== 0.8.3 / 2007-5-3

* 1 bugfix
  * Explicit reference to ::ActiveRecord::RecordNotFound
* 1 website addition:
  * Added routing help [Pete Sumskas]

== 0.8.2 / 2007-4-11

* 1 major enhancement:
  * Oracle unit tests!! [Darrin Holst]
  * And they work too

== 0.8.1 / 2007-4-10

* 1 bug fix:
  * Fixed the distinct(count) for oracle (removed 'as')

== 0.8.0 / 2007-4-6

* 1 major enhancement:
  * Support for calcualtions on associations
* 2 new DB supported:
  * Tests run on sqlite
  * Tests run on postgresql
* History.txt to keep track of changes like these
* Using Hoe for Rakefile
* Website generator rake tasks

== 0.3.3
* id=
* create now work

== 0.1.4
* it was important that #{primary_key} for composites --> 'key1,key2' and not 'key1key2' so created PrimaryKeys class

== 0.0.1
* Initial version
* set_primary_keys(*keys) is the activation class method to transform an ActiveRecord into a composite primary key AR
* find(*ids) supports the passing of
  * id sets: Foo.find(2,1),
  * lists of id sets: Foo.find([2,1], [7,3], [8,12]),
  * and even stringified versions of the above:
  * Foo.find '2,1' or Foo.find '2,1;7,3'