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CHANGELOG
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=== HEAD
* Add support for renaming primary key columns on MySQL (jeremyevans)
* Add connection_validator extension for automatically checking connections and transparently handling disconnects (jeremyevans)
* Add Database#valid_connection? for checking whether a given connection is valid (jeremyevans)
* Make dataset.limit(nil, nil) reset offset as well as limit (jeremyevans) (#571)
* Support IMMEDIATE/EXCLUSIVE/DEFERRED transaction modes on SQLite (Eric Wong)
* Major change in the Database <-> ConnectionPool interface (jeremyevans)
* Make touch plugin handle touching of many_*_many associations (jeremyevans)
* Make single_table_inheritance plugin handle non-bijective mappings (hannesg) (#567)
* Support foreign key parsing on MSSQL (munkyboy) (#564)
* Include SQL::AliasMethods in most pg_* extension objects (treydempsey, jeremyevans) (#563)
* Handle failure to create a prepared statement better in the postgres, mysql, and mysql2 adapters (jeremyevans) (#560)
* Treat clob columns as strings instead of blobs (jeremyevans)
=== 3.40.0 (2012-09-26)
* Add a cubrid adapter for accessing CUBRID databases via the cubrid gem (jeremyevans)
* Add a jdbc/cubrid adapter for accessing CUBRID databases via JDBC on JRuby (jeremyevans)
* Return OCI8::CLOB values as ruby Strings in the Oracle adapter (jeremyevans)
* Use clob for String :text=>true types on Oracle, DB2, HSQLDB, and Derby (jeremyevans) (#555)
* Allowing marshalling of Sequel::Postgres::HStore (jeremyevans) (#556)
* Quote channel identifier names when using LISTEN/NOTIFY on PostgreSQL (jeremyevans)
* Handle nil values when formatting bound variable arguments in the pg_row extension (jeremyevans) (#548)
* Handle nil values when parsing composite types in the pg_row extension (jeremyevans) (#548)
* Add :disconnect=>:retry option to Database#transaction, for automatically retrying the transaction on disconnect (jeremyevans)
* Greatly improved support on Microsoft Access (jeremyevans)
* Support Database#{schema,tables,views,indexes,foreign_key_list} when using ado/access adapter (ericgj) (#545, #546)
* Add ado/access adapter for accessing Microsoft Access via the ado adapter (jeremyevans)
* Combine disconnect error detection for mysql and mysql2 adapters (jeremyevans)
* Update the association_pks plugin to handle composite primary keys (chanks, jeremyevans) (#544)
=== 3.39.0 (2012-09-01)
* Fix defaults_setter to set false default values (jeremyevans)
* Fix serial sequence query in Database#primary_key_sequence on PostgreSQL (jeremyevans) (#538)
* Add Database#copy_into when using postgres adapter with pg driver, for very fast inserts into tables (jeremyevans)
* Combine multiple alter_table operations into a single query where possible on MySQL and PostgreSQL (jeremyevans)
* Handle sets of alter_table operations on MySQL and MSSQL where later operations depend on earlier ones (jeremyevans)
* Add constraint_validations plugin for automatic validations of constaints defined by extension (jeremyevans)
* Add constraint_validations extension for defining database constraints similar to validations (jeremyevans)
* Add Database#supports_regexp? for checking for regular expression support (jeremyevans)
* Add Sequel.trim for cross platform trim function (jeremyevans)
* Add Sequel.char_length for cross platform char_length function (jeremyevans)
* Fixing caching of MySQL server version (hannesg) (#536)
* Allow overriding the convert_tinyint_to_bool setting on a per-Dataset basis in the mysql and mysql2 adapters (jeremyevans)
* Make ValidationFailed and HookFailed exceptions have model method that returns the related model (jeremyevans)
* Automatically wrap array arguments to most PGArrayOp methods in PGArrays (jeremyevans)
* Add set_column_not_null to alter table generator for marking a column as not null (jeremyevans)
* Default second argument of set_column_allow_null to true in alter table generator (jeremyevans)
* Allow Dataset#count to take an argument or virtual row block (jeremyevans)
* Attempt to recognize CURRENT_{DATE,TIMESTAMP} defaults and return them as Sequel::CURRENT_{DATE,TIMESTAMP} (jeremyevans)
* Make dataset.insert(model) assume a single column if model uses the pg_row plugin (jeremyevans)
* No longer handle model instances in plain (non-model) datasets when inserting (jeremyevans)
* Use subselects for model classes as tables in join methods in model datasets if the model's dataset isn't a simple select (jeremyevans)
* No longer handle model classes as tables in join/graph methods in plain (non-model) datasets (jeremyevans)
* Make Time->DateTime and DateTime->Time typecasts retain fractional seconds on ruby 1.8 (jeremyevans) (#531)
* Add bin/sequel -c support, for running code string instead of using an IRB prompt (jeremyevans)
* Allow subclasses plugin to take a block, which is called with each subclasses created (jeremyevans)
* Add :where option to validates_unique, for custom uniqueness filters (jeremyevans)
* Add :connection_handling=>:disconnect option for threaded connection pools (jeremyevans)
* Add Postgres::PGRowOp#* for referencing the members of the composite type as separate columns (jeremyevans)
* Make identity_map plugin work with models lacking a primary key (jeremyevans)
* Recognize MySQL set type and default value (jeremyevans) (#529)
=== 3.38.0 (2012-08-01)
* Sequel now recognizes the double(x, y) and double(x, y) unsigned MySQL types (Slike9, jeremyevans) (#528)
* The swift subadapters now require swift-db-* instead of swift itself (deepfryed, jeremyevans) (#526)
* Add :textsize option to tinytds adapter to override the default TEXTSIZE (jeremyevans, wardrop) (#525)
* Support an output identifier method in the swift adapter (jeremyevans)
* Add Model#to_hash as an alias to Model#values (jeremyevans)
* When loading multiple pg_* extensions via Database#extension, only reset the conversion procs once (jeremyevans)
* Don't allow model typecasting from string to postgres array, hstore, or composite types (jeremyevans)
* Add pg_typecast_on_load plugin for converting advanced PostgreSQL types on load the {jdbc,do,swift}/postgres adapters (jeremyevans)
* Make all adapters that connect to PostgreSQL store type conversion procs (jeremyevans)
* Add type oid to column schema on PostgreSQL (jeremyevans)
* Add pg_row plugin, for using Sequel::Model classes to represent PostgreSQL row-valued/composite types (jeremyevans)
* Add pg_row_ops extension for DSL support for PostgreSQL row-valued/composite types (jeremyevans)
* Add pg_row extension for dealing with PostgreSQL row-valued/composite types (jeremyevans)
* Allow custom registered array types in the pg_array extension to be Database instance specific (jeremyevans)
* Remove Sequel::SQL::IdentifierMethods (jeremyevans)
* Don't have the schema_dumper extension produce code that relies on the core_extensions (jeremyevans)
* Fix dropping of columns with constraints on Microsoft SQL Server (mluu, jeremyevans) (#515, #518)
* Don't have pg_* extensions add methods to core classes unless the core_extensions extension is loaded (jeremyevans)
* Use real boolean literals on derby 10.7+ (jeremyevans, matthauck) (#514)
* Work around JRuby 1.6 ruby 1.9 mode bug in Time#nsec for Time prepared statement arguments on jdbc (jeremyevans)
* Handle blob prepared statement arguments on jdbc/db2 and jdbc/oracle (jeremyevans)
* Handle blob values in the swift adapter (jeremyevans)
* Handle better nil prepared statement arguments on jdbc (jeremyevans) (#513)
* Make SQL::Blob objects handle as, cast, and lit methods even if the core extensions are not loaded (jeremyevans)
* Make #* with no arguments produce a ColumnAll for Identifier and QualifiedIdentifier (jeremyevans)
* Sequel.expr(:symbol) now returns Identifier, QualifiedIdentifier, or AliasedExpression instead of Wrapper (jeremyevans)
* Treat clob columns as string instead of blob on Derby (jeremyevans) (#509)
=== 3.37.0 (2012-07-02)
* Allow specifying eager_graph alias base on a per-call basis using an AliasedExpression (jeremyevans)
* Allow bin/sequel to respect multiple -l options for logging to multiple files (jeremyevans)
* Correctly handle cases where SCOPE_IDENTITY is nil in the odbc/mssql adapter (stnoonan, jeremyevans)
* Add pg_interval extension, for returning interval types as ActiveSupport::Duration instances (jeremyevans)
* Save a new one_to_one associated object once instead of twice in the nested_attributes plugin (jeremyevans)
* Don't add unnecessary filter condition when passing a new object to a one_to_one setter method (jeremyevans)
* Differentiate between column references and method references in many_through_many associations (jeremyevans)
* Use :qualify=>:deep option when joining tables in model association datasets (jeremyevans)
* Support :qualify=>:deep option to Dataset#join_table to qualify subexpressions in the expression tree (jeremyevans)
* Support :qualify=>false option to Dataset#join_table to not automatically qualify keys/values (jeremyevans)
* Make filter by associations support use column references and method references correctly (jeremyevans)
* Call super in list plugin before_create (jeremyevans) (#504)
* Do not automatically cast String to text in pg_auto_parameterize extension (jeremyevans)
* Support alter_table validate_constraint on PostgreSQL for validating constraints previously declared with NOT VALID (jeremyevans)
* Support :not_valid option when adding foreign key constraints on PostgreSQL (jeremyevans)
* Support exclusion constraints on PostgreSQL (jeremyevans)
* Allow for overriding the create/alter table generators used per Database object (jeremyevans)
* Make casting to Date/(Time/DateTime) use date/datetime functions on SQLite (jeremyevans)
* Add pg_range_ops extension for DSL support for PostgreSQL range operators and functions (jeremyevans)
* The json library is now required when running the plugin/extension specs (jeremyevans)
* Use change migrations instead of up/down migrations in the schema_dumper (jeremyevans)
* Dump unsigned integer columns with a check >= 0 constraint in the schema_dumper (stu314)
* Switch the :key_hash entry to the association :eager_loader option to use the method symbol(s) instead of the column symbol(s) (jeremyevans)
* Add :id_map entry to the hash passed to the association :eager_loader option, for easier custom eager loading (jeremyevans)
* Fix dumping of non-integer foreign key columns in the schema_dumper (jeremyevans) (#502)
* Add nested_attributes :fields option to be a proc that is called with the associated object (chanks) (#498)
* Add split_array_nil extension, for compiling :col=>[1, nil] to col IN (1) OR col IS NULL (jeremyevans)
* Add Database#extension and Dataset#extension for loading extension modules into objects automatically (jeremyevans)
* Respect an existing dataset limit when updating on Microsoft SQL Server (jeremyevans)
* Add pg_range extension, for dealing with PostgreSQL 9.2+ range types (jeremyevans)
* Make pg_array extension convert array members when typecasting Array to PGArray (jeremyevans)
* Make jdbc/postgres adapter convert array type elements (e.g. date[] arrays are returned as arrays of Date instances) (jeremyevans)
* Make the pg_inet extension handle inet[]/cidr[]/macaddr[] types when used with the pg_array extension (jeremyevans)
* Make the pg_json extension handle json[] type when used with the pg_array extension (jeremyevans)
* Fix schema parsing of h2 clob types (jeremyevans)
* Make the pg_array extension handle array types for scalar types handled by the native postgres adapter (jeremyevans)
* Generalize handling of array types in the pg_array extension, allowing easy support of custom array types (jeremyevans)
* Remove type conversion of int2vector and money types on PostgreSQL, since previous conversions were wrong (jeremyevans)
* Add eval_inspect extension, which makes Sequel::SQL::Expression#inspect attempt to return a string suitable for eval (jeremyevans)
* When emulating offset with ROW_NUMBER, default to ordering by all columns if no specific order is given (stnoonan, jeremyevans) (#490)
* Work around JRuby 1.6 ruby 1.9 mode bug in Time -> SQLTime conversion (jeremyevans)
=== 3.36.1 (2012-06-01)
* Fix jdbc adapter when DriverManager#getConnection fails (aportnov) (#488)
=== 3.36.0 (2012-06-01)
* Use Bignum generic type when dumping unsigned integer types that could potentially overflow 32-bit signed integer values (stu314)
* Support :transform option in the nested_attributes plugin, for automatically preprocessing input hashes (chanks)
* Support :unmatched_pk option in the nested_attributes plugin, can be set to :create for associated objects with natural keys (chanks)
* Support composite primary keys in the nested_attributes plugin (chanks)
* Allow Model#from_json in the json_serializer plugin to use set_fields if a :fields option is given (jeremyevans)
* Support :using option to set_column_type on PostgreSQL, to force a specific conversion from the old value to the new value (jeremyevans)
* Drop indexes in the reverse order that they were added in the schema dumper (jeremyevans)
* Add :index_names option to schema dumper method, can be set to false or :namespace (stu314, jeremyevans)
* Add Database#global_index_namespace? for checking if index namespace is global or per table (jeremyevans)
* Fix typecasting of time columns on jdbc/postgres, before could be off by a millisecond (jeremyevans)
* Add document explaining Sequel's object model (jeremyevans)
* Attempt to detect more disconnect errors in the mysql2 adapter (jeremyevans)
* Add is_current? and check_current to the migrators, for checking/raising if there are unapplied migrations (pvh, jeremyevans) (#487)
* Add a jdbc subadapter for the Progress database (Michael Gliwinski, jeremyevans)
* Add pg_inet extension, for working with PostgreSQL inet and cidr types (jeremyevans)
* Fix bug in model column setters when passing an object that raises an exception for ==('') (jeremyevans)
* Add eager_each plugin, which makes each on an eagerly loaded dataset do eager loading (jeremyevans)
* Fix bugs when parsing foreign keys for tables with explicit schema on PostgreSQL (jeremyevans)
* Remove Database#case_sensitive_like on SQLite (jeremyevans)
* Remove Database#single_value in the native sqlite adapter (jeremyevans)
* Make Dataset#get work with nil and false arguments (jeremyevans)
* Make json_serializer plugin respect :root=>:collection and :root=>:instance options (jeremyevans)
* Support savepoints in prepared transactions on MySQL 5.5.23+ (jeremyevans)
* Add pg_json extension, for working with PostgreSQL 9.2's new json type (jeremyevans)
* In the optimistic locking plugin, make refresh and save after a failed save work correctly (jeremyevans)
* Support partial indexes on Microsoft SQL Server 2008 (jeremyevans)
* Make Database#call pass blocks (jeremyevans)
* Support :each when preparing statements, useful for iterating over large datasets (jeremyevans)
* Support :if_exists and :cascade options when dropping indexes on PostgreSQL (jeremyevans)
* Support :concurrently option when adding and dropping indexes on PostgreSQL (jeremyevans)
* Make Database#transaction on PostgreSQL recognize :synchronous, :read_only, and :deferrable options (jeremyevans)
* Support :sql_mode option when connecting to MySQL (jeremyevans)
* Apply :timeout MySQL connection setting on do, jdbc, and swift adapters (jeremyevans)
* Don't set Sequel::Model.db automatically when creating an anonymous class with an associated database object (jeremyevans)
* Add :connection_handling=>:queue option to the threaded connection pools, may reduce chance of stale connections (jeremyevans) (#481)
* Handle JRuby 1.7 exception handling changes when connecting in the jdbc adapter (jeremyevans) (#477)
* Make *_to_one association setters be noops if you pass a value that is the same as the cached value (jeremyevans)
* Make Model#refresh return self when using dirty plugin (jeremyevans)
=== 3.35.0 (2012-05-01)
* Correctly handle parsing schema for tables in other databases on MySQL (jeremyevans)
* Add DSL support for the modulus operator (%), similar to the bitwise operators (jeremyevans)
* Fix possible thread-safety issues on non-GVL ruby implementations (jeremyevans)
* Allow truncation of multiple tables at the same time on PostgreSQL (jeremyevans)
* Allow truncate to take a :cascade, :only, and :restart options on PostgreSQL (hgimenez, jeremyevans)
* Allow json and xml serializers to support :array option in class to_json method to serialize existing array of model instances (jeremyevans)
* Add dirty plugin, which saves the initial value of the column when the value is changed (jeremyevans)
* create_table now supports an :as option to create a table directly from the results of a query (jeremyevans)
* The :index option when creating columns in the schema generator can now be a hash of options passed to index (jeremyevans)
* Parsing the default column values in the oracle adapter no longer requires superuser privileges (Jason Hines)
* Add Database#cache_schema to allow schema caching to be turned of, useful for development modes where models are reloaded (jeremyevans)
* Correctly handle errors that occur when rolling back transactions (jeremyevans)
* Recognize identity type in the schema dumper (jeremyevans) (#468)
* Don't assign instance variables to Java objects, for future JRuby 2.0 support (jeremyevans) (#466)
* Use date and timestamp formats that are multilanguage and not DATEFORMAT dependent on Microsoft SQL Server (jeremyevans)
* Add Database#log_exception, which logs when a query raises an exception, for easier overriding (jeremyevans) (#465)
* Make the migrators only use transactions by default if the database supports transactional DDL (jeremyevans)
* Add Database#supports_transactional_ddl? for checking if DDL statements can be rolled back in transactions (jeremyevans)
* Don't use auto parameterization when using cursors in the pg_auto_parameterize extension (jeremyevans) (#463)
* No longer escape backslashes in strings by default, fixes doubled backslashes on some adapters (jeremyevans)
* Escape blackslash-carriage return-line feed in strings on Microsoft SQL Server (mluu, jeremyevans) (#462, #461)
* Remove Array#all_two_pairs? (jeremyevans)
* Remove Dataset#disable_insert_returning on PostgreSQL (jeremyevans)
* Remove support for PostgreSQL <8.2 (jeremyevans)
* Remove support for Ruby <1.8.7 (jeremyevans)
=== 3.34.1 (2012-04-02)
* Fix bug in optimization of primary key lookup (jeremyevans) (#460)
=== 3.34.0 (2012-04-02)
* Fix connection failures when connecting to PostgreSQL with newer versions of swift (jeremyevans)
* Fix using a bound variable for a limit in the ibmdb adapter on ruby 1.9 (jeremyevans)
* primary_key :column, :type=>Bignum now works correctly on H2 (jeremyevans)
* Add query_literals extension for treating regular strings like literal strings in select, group, and order methods (jeremyevans)
* Actually use RETURNING for deletes/updates on PostgreSQL 8.2-9.0 (jeremyevans)
* You can now require 'sequel/no_core_ext' to load Sequel without the core extensions (jeremyevans)
* The core extensions have now been made a real Sequel extension (still loaded by default) (jeremyevans)
* VirtualRow#` has been added for creating literal strings (jeremyevans)
* VirtualRow instances now have operator methods defined {+,-,*,/,&,|,~,>,<,>=,<=} (jeremyevans)
* Array#all_two_pairs? is now deprecated and will be removed after 3.34.0 is released (jeremyevans)
* All of Sequel's core extensions now have equivalent methods defined on the Sequel module (jeremyevans)
* Add Sequel.core_extensions? for checking if the core extensions are enabled (jeremyevans)
* Increase speed of Model#this by about 85% (jeremyevans)
* Increase speed of Model#delete and #destroy by about 75% for models with simple datasets (jeremyevans)
* Make nested_attributes plugin work when destroying/removing associated objects when strict_param_setting is true (r-stu31) (#455)
* Dataset#disable_insert_returning on PostgreSQL is now deprecated and will be removed after 3.34.0 is released (jeremyevans)
* Double speed of Model[pk] for models with simple datasets (most models) (jeremyevans)
* Support for ruby <1.8.7 and PostgreSQL <8.2 is now deprecated and will be removed after 3.34.0 is released (jeremyevans)
* Add select_remove extension which adds Dataset#select_remove for removing columns/expressions from a dataset selection (jeremyevans)
* Add static_cache plugin, for staticly caching all model instances, useful for model tables that don't change (jeremyevans)
* Add Model#freeze implementation to get a working frozen model object (jeremyevans)
* Add many_to_one_pk_lookup plugin, for using a simple primary key lookup for many_to_one associations (great with caching) (jeremyevans)
* Use bigint type instead of integer for Bignum generic type on SQLite, except for auto incrementing primary keys (jeremyevans)
* Add Database#dump_foreign_key_migration for just dumping foreign key constraints to the schema dumper extension (jeremyevans)
* Dump foreign key constraints by default when using the schema dumper extension (jeremyevans)
* Don't raise an error when no indexes exist for a table when calling Database#indexes on the jdbc/sqlite adapter (jeremyevans)
* Copy composite foreign key constraints when emulating alter_table on SQLite (jeremyevans)
* Add Database#foreign_key_list for getting foreign key metadata for a given table on SQLite, MySQL, and PostgreSQL (jeremyevans)
* Add Dataset#to_hash_groups and #select_hash_groups for getting a hash with arrays of matching values (jeremyevans)
* Model#set_fields and #update_fields now respect :missing=>:skip and :missing=>:raise options for handling missing values (jeremyevans)
* The :on_update and :on_delete entries for foreign key can now take strings, which are used literally (jeremyevans)
* Add Database#convert_infinite_timestamps to the postgres adapter, can be set to :nil, :string, or :float (jeremyevans) (#454)
* Add Database#create_join_table and #drop_join_table for easily creating many-to-many join tables (jeremyevans)
* Fix Dataset#group_rollup/#group_cube on Microsoft SQL Server 2005 (jeremyevans)
* Add Dataset#explain on MySQL (jeremyevans)
* Change formatting and return value of Dataset#explain on SQLite (jeremyevans)
* Recognize unsigned tinyint types in the schema dumper (jeremyevans)
* Add null_dataset extension, for creating a dataset that never issues a database query (jeremyevans)
* Database#uri and #url now return nil if a connection string was not used when connecting (jeremyevans) (#453)
* Add schema_caching extension, to speed up loading a large number of models by loading cached schema information from a file (jeremyevans)
* Add Dataset#multi_replace on MySQL, allowing you to REPLACE multiple rows in a single query (danielb2) (#452)
* Double speed of Model#new with empty hash, and quadruple speed of Model#set with empty hash (jeremyevans)
* Allow SQL::QualifiedIdentifier objects to contain arbitrary Sequel expressions (jeremyevans)
* Add pg_hstore_ops extension, for easily calling PostgreSQL hstore functions and operators (jeremyevans)
* Add Sequel::SQL::Wrapper class for easier dealing with wrapper objects (jeremyevans)
* Add pg_hstore extension, for dealing with the PostgreSQL hstore (key/value table) type (jeremyevans)
* Add Database#type_supported? method on PostgreSQL for checking if the given type symbol/string is supported (jeremyevans)
* Convert Java::OrgPostgresqlUtil::PGobject instances to ruby strings in jdbc/postgres type conversion (jeremyevans)
* Allow PlaceholderLiteralString objects to store placeholder string as an array for improved performance (jeremyevans)
* Work around ruby-pg bugs 111 (Time/DateTime fractional seconds) and 112 ("\0" in bytea) in bound variable arguments (jeremyevans) (#450)
* Handle fractional seconds correctly for time type on jdbc/postgres (jeremyevans)
* Add pg_array_ops extension, for easily calling PostgreSQL array functions and operators (jeremyevans)
* Add SQL::Subscript#[] for using nested subscripts (accessing member of multi-dimensional array) (jeremyevans)
* Add Model.cache_anonymous_models accessor so you can disable the caching of classes created by Sequel::Model() (jeremyevans)
* Convert PostgreSQL JDBC arrays to Ruby arrays in the jdbc/postgres adapter (jeremyevans)
* The typecast_on_load extension now works correctly when saving new model objects when insert_select is enabled (jeremyevans)
* Add pg_array extension, for dealing with string and numeric PostgreSQL arrays (jeremyevans)
* Add Database#reset_conversion_procs to the postgres adapter, for use with extensions with modify default conversion procs (jeremyevans)
* Escape table and schema names when getting primary key or sequence information on PostgreSQL (jeremyevans)
* Escape identifiers when quoting on MySQL and SQLite (jeremyevans)
* Add Database#supports_drop_table_if_exists? for checking if DROP TABLE supports IF EXISTS (jeremyevans)
* Add Database#drop_table? for dropping a table if it already exists (jeremyevans)
* Log full SQL string by default for prepared statements created automatically by model prepared_statements* plugins (jeremyevans)
* Add ability for prepared statements to log full SQL string (jeremyevans)
* Add pg_statement_cache extension, for automatically preparing queries when using postgres adapter with pg driver (jeremyevans)
* Add pg_auto_parameterize extension, for automatically parameterizing queries when using postgres adapter with pg driver (jeremyevans)
* Add ConnectionPool#disconnection_proc= method, to modify disconnection_proc after the pool has been created (jeremyevans)
* Add ConnectionPool#after_connect= method, to modify after_connect proc after the pool has been created (jeremyevans)
* Add ConnectionPool#all_connections method, which yields all available connections in the pool (jeremyevans)
=== 3.33.0 (2012-03-01)
* Add ability to force or disable transactions completely in the migrators using the :use_transactions option (jeremyevans)
* Add ability to turn off transactions for migrations by calling no_transaction inside the Sequel.migration block (jeremyevans)
* Allow specifically choosing which migrator to use via TimestampMigrator.apply or IntegerMigrator.apply (jeremyevans)
* Add arbitrary_servers extension to allow the use of arbitrary servers/shards by providing a hash of options as the server (jeremyevans)
* Add server_block extension to scope database access inside the block to a specific default server/shard (jeremyevans)
* Respect :collate column option on MySQL (jeremyevans) (#445)
* Use Mysql2::Client::FOUND_ROWS to get accurate number of rows matched in the mysql2 adapter (jeremyevans)
* Use Mysql#info to get accurate number of rows matched in the mysql adapter (jeremyevans)
* Make mock adapter with specific SQL dialect use appropriate defaults for quoting identifiers (jeremyevans)
* Make list plugin automatically set position field value on creation if not already set (jeremyevans)
* Add Database#integer_booleans setting on SQLite to store booleans as integers (jeremyevans)
* Typecast columns stored as integers/floats in the SQLite adapter (jeremyevans)
* In the instance_hooks plugin, (before|after)_*_hook instance methods now return self (jeremyevans)
* Handle NaN, Infinity, and -Infinity floats on PostgreSQL (kf8a, jeremyevans) (#444)
* Support an :sslmode option when using the postgres adapter with the pg driver (jeremyevans)
* Add Database#create_schema and #drop_schema to the shared postgres adapter (tkellen, jeremyevans) (#440)
* Add Database#supports_savepoints_in_prepared_transactions?, false on MySQL >=5.5.12 (jeremyevans) (#437)
* Support an identifier output method in the mysql2 adapter (jeremyevans)
* Make foreign key creation work on MySQL with InnoDB engine without specifying :key option (jeremyevans)
* Allow disabling use of sudo with SUDO='' when running the rake install/uninstall tasks (jeremyevans) (#433)
=== 3.32.0 (2012-02-01)
* Make serialization_modification_detection plugin work correctly with new objects and after saving existing objects (jeremyevans) (#432)
* Make refreshes after model creation clear the deserialized values in the serialization plugin (jeremyevans)
* Add Dataset#update_ignore on MySQL, for using UPDATE IGNORE in queries (danielb2) (#429)
* Allow select_map/select_order_map to take both a column argument and a block (jeremyevans)
* Fix virtual row block handling in select_map/select_order_map if block returns an array (jeremyevans) (#428)
* Add Sequel.empty_array_handle_nulls setting, can be set to false for possible better performance on some databases (jeremyevans)
* Change exclude(:b=>[]) to not return rows where b is NULL (jeremyevans) (#427)
* Support ActiveModel 3.2 in the active_model plugin, by adding support for to_partial_path (jeremyevans)
* Fix metadata methods (e.g. tables) on Oracle when custom identifier input methods are used (jeremyevans)
* Fix Database#indexes on DB2 (jeremyevans)
* Make DateTime/Time columns with Sequel::CURRENT_TIMESTAMP default values use timestamp column on MySQL (jeremyevans)
* Wrap column default values in extra parens on SQLite, fixes some cases (jeremyevans)
* Make Database#indexes not include primary key indexes on Derby, HSQLDB, Oracle, and DB2 using the jdbc adapter (jeremyevans)
* Support Database#indexes in shared MSSQL adapter (jeremyevans)
* Support :include option when creating indexes on MSSQL, for storing column values in the index (crawlik) (#426)
* Make set_column_type not modify defaults and NULL/NOT NULL setting on MSSQL, H2, and SQLite (jeremyevans)
* Qualify identifiers when filtering/excluding by associations (jeremyevans)
* Make table_exists? better handle tables where you don't have permissions for all columns (jeremyevans) (#422)
* Using new association options, support associations based on columns that clash with ruby method names (jeremyevans) (#417)
* Add use_after_commit_rollback setting to models, can be turned off to allow model usage with prepared transactions (jeremyevans)
* Fix alter table emulation on SQLite when foreign keys reference the table being altered (jeremyevans)
* Fix progress shared adapter, broken since the dataset literalization refactoring (jeremyevans) (#414)
* Support :map and :to_hash prepared statement types (jeremyevans)
* Make Dataset#naked! work correctly (jeremyevans)
* Remove Dataset#paginate!, as it was broken (jeremyevans)
* Fix query extension to not break usage of #clone without arguments (jeremyevans) (#413)
=== 3.31.0 (2012-01-03)
* Dataset#from no longer handles :a__b__c___d as a.b.c AS d (jeremyevans)
* Support many_to_one associations with the same name as their column, using the :key_column option (jeremyevans)
* Add Model.def_column_alias for defining alias methods for columns (jeremyevans)
* Support :server option in Dataset#import and #multi_insert (jeremyevans)
* Respect existing RETURNING/OUTPUT clauses in #import/#multi_insert on PostgreSQL/MSSQL (jeremyevans)
* Support :return=>:primary_key option to Dataset#import and #multi_insert (jeremyevans)
* Correctly handle return value for Dataset#insert with column array and value array on PostgreSQL <8.2 (jeremyevans)
* Dataset#insert_multiple now returns an array of inserted primary keys (jeremyevans) (#408)
* Support RETURNING with DELETE and UPDATE on PostgreSQL 8.2+ (funny-falcon)
* Raise error if tables from two separate schema are detected when parsing the schema for a single table on PostgreSQL (jeremyevans)
* Handle clob types as string instead of blob on H2 (jeremyevans)
* Add database type support to the mock adapter, e.g. mock://postgres (jeremyevans)
* Allow creation of full text indexes on Microsoft SQL Server, but you need to provide a :key_index option (jeremyevans)
* Allow Dataset#full_text_search usage with prepared statements (jeremyevans)
* Make Dataset#exists use a PlaceholderLiteralString so it works with prepared statements (jeremyevans)
* Fix Dataset#empty? for datasets with offsets when offset support is emulated (jeremyevans)
* Add Dataset#group_rollup and #group_cube methods for GROUP BY ROLLUP and CUBE support (jeremyevans)
* Add support for custom serialization formats to the serialization plugin (jeremyevans)
* Support a :login_timeout option in the jdbc adapter (glebpom) (#406)
=== 3.30.0 (2011-12-01)
* Handle usage of on_duplicate_key_update in MySQL prepared statements (jeremyevans) (#404)
* Make after_commit and after_rollback respect :server option (jeremyevans) (#401)
* Respect :connect_timeout option in the postgres adapter when using pg (glebpom, jeremyevans) (#402)
* Make Dataset#destroy for model datasets respect dataset shard when using a transaction (jeremyevans)
* Make :server option to Model#save set the shard to use (jeremyevans)
* Move Model#set_server from the sharding plugin to the base plugin (jeremyevans)
* Add :graph_alias_base association option for setting base name to use for table aliases when eager graphing (jeremyevans)
* Make ILIKE work correctly on Microsoft SQL Server if database/column collation is case sensitive (jfirebaugh) (#398)
* When starting a new dataset graph, assume existing selection is the columns to select from the current table (jeremyevans)
* Allow specifying nanoseconds and offsets when converting a hash or array to a timestamp (jeremyevans, jfirebaugh) (#395)
* Improve performance when converting Java types to ruby types in the jdbc adapter (jeremyevans, jfirebaugh) (#395)
* Fix tinytds adapter if DB.identifier_output_method = nil (jeremyevans)
* Explicitly order by the row number column when emulating offsets (jfirebaugh) (#393)
* Fix Dataset#graph and #eager_graph modifying the receiver if the receiver is already graphed (jeremyevans) (#392)
* Change dataset literalization to an append-only-all-the-way-down design (jeremyevans)
=== 3.29.0 (2011-11-01)
* Allow Model.dataset_module to take a Module instance (jeremyevans)
* Apply Model.[] optimization in more cases (jeremyevans)
* Fix Model.[] optimization when dataset uses identifier_input_method different than database (jeremyevans)
* Work around pragma bug on jdbc/sqlite when emulating alter table support (jeremyevans)
* Database#<< and Dataset#<< now return self so they can be safely chained (jeremyevans)
* Fully support using an aliased table name as the :join_table option for a many_to_many association (jeremyevans)
* Make like case sensitive on SQLite and Microsoft SQL Server (use ilike for case insensitive matching) (jeremyevans)
* Add Database#extend_datasets for the equivalent of extending of the Database object's datasets with a module (jeremyevans)
* Speed up Dataset #map, #to_hash, and related methods if an array of symbols is given (jeremyevans)
* Add Database#dataset_class for modifying the class used for datasets for a single Database object (jeremyevans)
* Plugins that override Model.load should be modified to override Model.call instead (jeremyevans)
* Speed up loading model objects from the database by up to 7-16% (jeremyevans)
* Create accessor methods for all columns in a model's table, even if the dataset doesn't select the columns (jeremyevans)
* Add mock adapter for better mocking of a database connection (jeremyevans)
* Have models pass their dataset instead of table name to Database#schema (jeremyevans)
* Allow Database#schema to take a dataset as the table argument, and use its identifier input/output methods (jeremyevans)
* Significant improvements to the db2 adapter (jeremyevans)
* Handle methods with names that can't be called directly in Model.def_dataset_method (jeremyevans)
* Add dataset_associations plugin for making dataset methods that return datasets of associated objects (jeremyevans)
* Don't allow Model.def_dataset_method to override private model methods (jeremyevans)
* Parsing primary key information from system tables in the shared MSSQL adapter (jeremyevans)
* Fix handling of composite primary keys when emulating alter table operations on SQLite (jeremyevans)
* Emulate add_constraint and drop_constraint alter table operations on SQLite (jeremyevans)
* Apply the correct pragmas when connecting to SQLite via the Amalgalite and Swift adapters (jeremyevans)
* Fix bound variable usage for some types (e.g. Date) when used outside of prepared statements on SQLite (jeremyevans)
* Work around SQLite column naming bug when using subselects (jeremyevans)
* Make prepared_statements plugin work with adapters that require type specifiers for variable placeholders, such as oracle (jeremyevans)
* Add savepoint support to the generic JDBC transaction support (used by 6 jdbc subadapters) (jeremyevans)
* Add native prepared statement support to the oracle adapter (jeremyevans)
* Support sharding correctly by default when using transactions in model saving/destroying (jeremyevans)
* Add Database#in_transaction? method for checking if you are already in a transaction (jeremyevans)
* Add after_commit, after_rollback, after_destroy_commit, and after_destroy_rollback hooks to Model objects (jeremyevans)
* Add after_commit and after_rollback hooks to Database objects (jeremyevans) (#383)
* Support savepoints inside prepared transactions on MySQL (jeremyevans)
* Support opening transactions to multiple shards of the same Database object in the same Thread (jeremyevans)
* Add Sequel.transaction for running transactions on multiple databases at the same time (jeremyevans)
* Support :rollback => :always option in Database#transaction to always rollback the transaction (jeremyevans)
* Support :rollback => :reraise option in Database#transaction to reraise the Sequel::Rollback exception (jeremyevans)
* Add support for connecting to Apache Derby databases using the jdbc adapter (jeremyevans)
* Add support for connecting to HSQLDB databases using the jdbc adapter (jeremyevans)
* Fix inserting all default values into a table on DB2 (jeremyevans)
* Add :qualify option to many_to_one associations for whether to qualify the primary key column with the associated table (jeremyevans)
* Modify rcte_tree plugin to use column aliases if recursive CTEs require them (jeremyevans)
* Add Dataset#recursive_cte_requires_column_aliases? method to check if you must provide an argument list for a recursive CTE (jeremyevans)
* Much better support for Oracle in both the oci8-based oracle adapter and the jdbc oracle subadapter (jeremyevans)
* Handle CTEs in subselects in more places on databases that don't natively support CTEs in subselects (jeremyevans)
* Change Dataset#to_hash to not call the row_proc if 2 arguments are given (jeremyevans)
* Change Dataset#map to not call the row_proc if an argument is given (jeremyevans)
* Make Dataset#select_map and #select_order_map return an array of single element arrays if given an array with a single symbol (jeremyevans)
* Make Dataset#columns work correctly on jdbc, odbc, ado, and dbi adapters when using an emulated offset on MSSQL and DB2 (jeremyevans)
* Add Database#listen and #notify to the postgres adapter, for LISTEN and NOTIFY support (jeremyevans)
* Emulate the bitwise compliment operator on h2 (jeremyevans)
* Fix improper handling of emulated bitwise operators with more than two arguments (jeremyevans)
* Allow convert_invalid_date_time to be set on a per-Database basis in the mysql adapter (jeremyevans)
* Allow convert_tinyint_to_bool to be set on a per-Database basis in the mysql and mysql2 adapters (jeremyevans)
* Allow per-Database override of the typeconversion procs on the mysql, sqlite, and ibmdb adapters (jeremyevans)
* Add Database#timezone accessor, for overriding Sequel.database_timezone per Database object (jeremyevans)
=== 3.28.0 (2011-10-03)
* Add firebird jdbc subadapter (jeremyevans)
* Add SQLTime.create method for easier creation of SQLTime instances (jeremyevans)
* Make Dataset#with_pk use a qualified primary key, so it works correctly on joined datasets (jeremyevans)
* Support the :limit association option when using eager_graph (jeremyevans)
* Fix eager loading via eager_graph of one_to_one associations that match multiple associated objects and use order to pick the first one (jeremyevans)
* Make after_load association hooks apply when using eager_graph (jeremyevans)
* Make Dataset#with_sql treat a symbol as a first argument as a method name to call to get the SQL (jeremyevans)
* Make Dataset #delete, #insert, #update return array of plain hashes if block not given and Dataset#returning is used (jeremyevans)
* Allow Dataset #map, #to_hash, #select_map, #select_order_map, and #select_hash to take arrays of columns instead of single columns (jeremyevans)
* Make Dataset #delete, #insert, #update yield plain hashes to a block if Dataset#returning is used (jeremyevans)
* Add Dataset#returning for setting the columns to return in INSERT/UPDATE/DELETE statements, used by PostgreSQL 9.1 (jeremyevans)
* Support WITH clause in INSERT/UPDATE/DELETE on PostgreSQL 9.1+ (jeremyevans)
* Add Database#copy_table for PostgreSQL COPY support when using the postgres adapter with pg (jeremyevans)
* Support CREATE TABLE IF NOT EXISTS on PostgreSQL 9.1+ (jeremyevans)
* Add support for Sequel::Model.default_eager_limit_strategy to set the default :eager_limit_strategy for *_many associations (jeremyevans)
* Add support for an :eager_limit_strategy => :correlated_subquery value for limiting using correlated subqueries (jeremyevans)
* Allow use of a dataset that uses the emulated offset support on MSSQL and DB2 in an IN subquery by using a nested subquery (jeremyevans)
* Allow use of a dataset that uses LIMIT in an IN subquery on MySQL by using a nested subquery (jeremyevans)
* Work around serious ActiveSupport bug in Time.=== that breaks literalization of Time values (jeremyevans)
* Speed up SQL operator methods by using module_eval instead of define_method (jeremyevans)
* Support sql_(boolean,number,string) methods on ComplexExpressions, allowing you do to (x + 1).sql_string + 'a' for (x + 1) || 'a' (jeremyevans)
* Don't disallow SQL expression creation based on types, leave that to the database server (jeremyevans)
* Make :column [&|] 1 use an SQL bitwise [&|] expression instead of a logical (AND|OR) expression (jeremyevans)
* Make :column + 'a' use an SQL string concatenation expression instead of an addition expression (jeremyevans)
* Fix :time typecasting from Time to SQLTime for fractional seconds on ruby 1.9 (jeremyevans)
* Have Dataset#select_append check supports_select_all_and_column? and select all from all FROM and JOIN tables if no columns selected (jeremyevans)
* Add Dataset#supports_select_all_and_column? for checking if you can do SELECT *, column (jeremyevans)
* Add support for an :eager_limit_strategy => :window_function value for limiting using window functions (jeremyevans)
* Add support for an :eager_limit_strategy => :distinct_on value for one_to_one associations for using DISTINCT ON (jeremyevans)
* Add support for an :eager_limit_strategy association option, for manual control over how limiting is done (jeremyevans)
* Add Dataset#supports_ordered_distinct_on? for checking if the dataset can use distinct on while respecting order (jeremyevans)
* Add support for the association :limit option when eager loading via .eager for *_many associations (jeremyevans)
* Add db2 jdbc subadapter (jeremyevans)
* Fix the db2 adapter so it actually works (jeremyevans)
* Add ibmdb adapter for accessing DB2 (roylez, jeremyevans) (#376)
* Add much better support for DB2 databases (roylez, jeremyevans) (#376)
* Handle SQL::AliasedExpressions and SQL::JoinClauses in Dataset#select_all (jeremyevans)
* Speed up type translation slightly in mysql, postgres, and sqlite adapters (jeremyevans)
* Add Dataset#supports_cte_in_subqueries? for checking whether database supports WITH in subqueries (jeremyevans)
* Allow Model.set_dataset to accept Sequel::LiteralString arguments as table names (jeremyevans)
* Association :after_load hooks in lazy loading are now called after the associated objects have been cached (jeremyevans)
* Emulate handling of extract on MSSQL, using datepart (jeremyevans)
* Emulate handling of extract on SQLite, but you need to set Database#use_timestamp_timezones = false (jeremyevans)
* Abstract handling of ComplexExpressionMethods#extract so that it can work on databases that don't implement extract (jeremyevans)
* Emulate xor operator on SQLite (jeremyevans)
* Add Dataset#supports_where_true? for checking if the database supports WHERE true (or WHERE 1 if 1 is true) (jeremyevans)
* Fix eager loading via eager of one_to_one associations that match multiple associated objects and use order to pick the first one (jeremyevans)
=== 3.27.0 (2011-09-01)
* Add support for native prepared statements to the tinytds adapter (jeremyevans)
* Add support for native prepared statements and stored procedures to the mysql2 adapter (jeremyevans)
* Support dropping primary key, foreign key, and unique constraints on MySQL via the drop_constraint :type option (jeremyevans)
* Add Sequel::SQLTime class for handling SQL time columns (jeremyevans)
* Typecast DateTime objects to Date for date columns (jeremyevans)
* When typecasting Date objects to timestamps, make the resulting objects always have no fractional date components (jeremyevans)
* Add Model.dataset_module for simplifying many def_dataset_method calls (jeremyevans)
* Make prepared_statements_safe plugin work on classes without datasets (jeremyevans)
* Make Dataset#hash work correctly when referencing SQL::Expression instances (jeremyevans)
* Handle allowed mass assignment methods correctly when including modules in classes or extending instances with modules (jeremyevans)
* Fix Model#hash to work correctly with composite primary keys and with no primary key (jeremyevans)
* Model#exists? now returns false without issuing a query for new model objects (jeremyevans)
=== 3.26.0 (2011-08-01)
* Fix bug in default connection pool if a disconnect error is raised and the disconnection_proc also raises an error (jeremyevans)
* Disallow eager loading via eager of many_*_many associations with :eager_graph option (jeremyevans)
* Major speedup in dataset creation (jeremyevans)
* Replace internal implementation of eager_graph with much faster version (jeremyevans)
* Don't treat strings with leading zeros as octal format in the default typecasting (jeremyevans)
* Fix literalization of Date, Time, and DateTime values on Microsoft Access (jeremyevans)
* Fix handling of nil values with the pure-Java version of nokogiri in the xml_serializer plugin (jeremyevans)
* Make identity_map plugin work with standard eager loading of many_to_many and many_through_many associations (jeremyevans)
* Make create_table! only attempt to drop the table if it already exists (jeremyevans)
* Remove custom table_exists? implementations in the oracle and postgres adapters (jeremyevans)
* Handle another type of disconnection in the postgres adapter (jeremyevans)
* Handle disconnections in the ado adapter and do postgres subadapter (jeremyevans)
* Recognize disconnections when issuing BEGIN/ROLLBACK/COMMIT statements (jeremyevans) (#368)
=== 3.25.0 (2011-07-01)
* Work with tiny_tds-0.4.5 in the tinytds adapter, older versions are no longer supported (jeremyevans)
* Make association_pks plugin typecast provided values to integer if the primary key column type is integer (jeremyevans)
* Model.set_dataset now accepts Identifier, QualifiedIdentifier, and AliasedExpression arguments (jeremyevans)
* Fix handling of nil values in bound variables and prepared statement and stored procedure arguments in the jdbc adapter (jeremyevans, wei)
* Allow treating Datasets as Expressions, e.g. DB[:table1].select(:column1) > DB[:table2].select(:column2) (jeremyevans)
* No longer use CASCADE by default when dropping tables on PostgreSQL (jeremyevans)
* Support :cascade option to #drop_table, #drop_view, #drop_column, and #drop_constraint for using CASCADE (jeremyevans)
* If validation error messages are LiteralStrings, don't add the column name to them in Errors#full_messages (jeremyevans)
* Fix bug loading plugins on 1.9 where ::ClassMethods, ::InstanceMethods, or ::DatasetMethods is defined (jeremyevans)
* Add Dataset#exclude_where and Dataset#exclude_having methods, so you can force use of having or where clause (jeremyevans)
* Allow Dataset#select_all to take table name arguments and select all columns from each given table (jeremyevans)
* Add Dataset#select_group method, for selecting and grouping on the same columns (jeremyevans)
* Allow Dataset#group and Dataset#group_and_count to accept a virtual row block (jeremyevans)
=== 3.24.1 (2011-06-03)