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Added new column to all db definitions. Where, oh where, is our hereo that will convert all the legacy fixture schemas to schema.rb? (closes #3993) [Bob Silva]

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Add set_fixture_class to allow the use of table name accessors with models which use set_default_name. Closes #3935

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Added that fixtures to placed in subdirectories of the main fixture files are also loaded (closes #3937) [dblack@wobblini.net]

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CHANGED DEFAULT: ActiveRecord::Base.schema_format is now :ruby by default instead of :sql. This means that we'll assume you want to live in the world of db/schema.rb where the grass is green and the girls are pretty. If your schema contains un-dumpable elements, such as constraints or database-specific column types, you just got an invitation to either 1) patch the dumper to include foreign key support, 2) stop being db specific, or 3) just change the default in config/environment.rb to config.active_record.schema_format = :sql -- we even include an example for that on new Rails skeletons now. Brought to you by the federation of opinionated framework builders! [DHH]

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ActiveRecord::Base.remove_connection explicitly closes database connections and doesn't corrupt the connection cache. Introducing the disconnect! instance method for the PostgreSQL, MySQL, and SQL Server adapters; implementations for the others are welcome. References #3591.

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Fixed validates_length_of to work on UTF-8 strings by using characters instead of bytes (closes #3699) [Masao Mutoh]

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Fixed that reflections would bleed across class boundaries in single-table inheritance setups (closes #3796) [lars@pind.com]

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Added calculations: Base.count, Base.average, Base.sum, Base.minimum, Base.maxmium, and the generic Base.calculate. All can be used with :group and :having. Calculations and statitics need no longer require custom SQL. #3958 [Rick Olson]

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Renamed Errors#count to Errors#size but kept an alias for the old name (and included an alias for length too) (closes #3920, #3320) [contact@lukeredpath.co.uk]

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Reflections don't attempt to resolve module nesting of association classes. Simplify type computation.

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Improved the Oracle OCI Adapter with better performance for column reflection (from #3210), fixes to migrations (from #3476 and #3742), tweaks to unit tests (from #3610), and improved documentation (from #2446) (closes #3879) [Aggregated by schoenm@earthlink.net]

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Added :count option to pagination that'll make it possible for the ActiveRecord::Base.count call to using something else than * for the count. Especially important for count queries using DISTINCT #3839 [skaes]. Added :select option to Base.count that'll allow you to select something else than * to be counted on. Especially important for count queries using DISTINCT (closes #3839) [skaes].

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test_find_or_create_from_two_attributes is a duplicate of test_find_or_create_from_one_attribute (closes #3863) [jp.bougie@gmail.com]

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Fix Syntax error in mysql.sql, Drop table readers and run aaa_create_tables first.  [Bob Silva] Closes #3798


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