=== 4.5.0 (2013-12-02)
* Support :on_commit=>(:drop|:delete_rows|:preserve_rows) options when creating temp tables on PostgreSQL (rosenfeld) (#737)
* Make Dataset#insert work on PostgreSQL if the table name is a SQL::PlaceholderLiteralString (jeremyevans) (#736)
* Copy unique constraints when emulating alter_table operations on SQLite (jeremyevans) (#735)
* Don't return clob column values as SQL::Blob instances in the db2 and ibmdb adapters unless use_clob_as_blob is true (jeremyevans)
* Make use_clob_as_blob false by default on DB2 (jeremyevans)
* Fix usage of Sequel::SQL::Blob objects as prepared statement arguments in jdbc/db2 adapter when use_clob_as_blob is false (jeremyevans)
* Add mssql_optimistic_locking plugin, using a timestamp/rowversion column to protect against concurrent updates (pinx, jeremyevans) (#731)
* Make Model.primary_key array immutable for composite keys (chanks) (#730)
=== 4.4.0 (2013-11-01)
* Make Database#tables not show tables in the recycle bin on Oracle (jeremyevans) (#728)
* Don't automatically order on all columns when emulating offsets for unordered datasets on DB2 (jeremyevans)
* Improve PostgreSQL type support in the jdbc/postgresql adapter (jeremyevans)
* Make offset emulation on Oracle work when using columns that can't be ordered (jeremyevans, sdeming) (#724, #725)
* Make filter by associations support handle associations with :conditions or block (jeremyevans)
* Make association cloning handle :block correctly for clones of clones (jeremyevans)
* Make association cloning handle :eager_block option correctly (jeremyevans)
* Make add_primary_key work on h2 (jeremyevans)
* Add support for foreign key parsing on Oracle (jeremyevans)
* Add support for foreign key parsing to the jdbc adapter (jeremyevans)
* Make add_foreign_key work on HSQLDB (jeremyevans)
* Add table_select plugin for selecting table.* instead of * for model datasets (jeremyevans)
* Issue constraint_validation table deletes before inserts, so modifying constraint via drop/add in same alter_table block works (jeremyevans)
* Support add_*/remove_*/remove_all_* pg_array_to_many association methods on unsaved model objects (jeremyevans)
* Add Sybase SQLAnywhere support via new sqlanywhere and jdbc/sqlanywhere adapters (gditrick, jeremyevans)
* Add Dataset#offset for setting the offset separately from the limit (Paul Henry, jeremyevans) (#717)
=== 4.3.0 (2013-10-02)
* Fix literalization of empty blobs on MySQL (jeremyevans) (#715)
* Ensure Dataset#page_count in pagination extension is at least one
(jeremyevans) (#714)
* Recognize another disconnect error in the jdbc/as400 adapter (jeremyevans)
* Make Dataset#qualify and Sequel.delay work together (jeremyevans)
* Recognize citext type as string on PostgreSQL (isc) (#710)
* Support composite keys in the rcte_tree plugin (jeremyevans)
* Support composite keys in the tree plugin (jeremyevans)
* Make Migrator.migrator_class public (robertjpayne, jeremyevans) (#708)
* Make PostgreSQL empty array literalization work correctly on PostgreSQL <8.4
(jeremyevans)
* Add Sequel extensions guide (jeremyevans)
* Add model plugins guide (jeremyevans)
* Add error_sql Database extension, allowing DatabaseError#sql to return SQL
query that caused underlying exception (jeremyevans)
* Make Dataset#each_page in pagination extension return enumerator if no block
is given (justinj) (#702)
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