Changelog

0.2.2 (August 19th, 2010)

Change how AR adapter would send initial commands upon connecting ** we can make multiple session variable assignments in a single query
fix signal handling when waiting on queries
retry connect if interrupted by signals

switch back to letting libmysql manage all allocation/thread-state/freeing for the connection
cache various numeric type conversions in hot-spots of the code for a little speed boost
ActiveRecord adapter moved into Rails 3 core ** Don't worry 2.3.x users! We'll either release the adapter as a separate gem, or try to get it into 2.3.9
Fix for the "closed MySQL connection" error (GH #31)
Fix for the "can't modify frozen object" error in 1.9.2 (GH #37)
Introduce cascading query and result options (more info in README)
Sequel adapter pulled into core (will be in the next release - 3.15.0 at the time of writing)
add a safety check when attempting to send a query before a result has been fetched

Support async ActiveRecord access with fibers and EventMachine (mperham)
string encoding support for 1.9, respecting Encoding.default_internal
added support for rake-compiler (tenderlove)
bugfixes for ActiveRecord driver ** one minor bugfix for TimeZone support ** fix the select_rows method to return what it should according to the docs (r-stu31)
Mysql2::Client#fields method added - returns the array of field names from a resultset, as strings
Sequel adapter ** bugfix regarding sybolized field names (Eric Wong) ** fix query logging in Sequel adapter
Lots of nice code cleanup (tenderlove) ** Mysql2::Error definition moved to pure-Ruby ** Mysql2::client#initialize definition moved to pure-Ruby ** Mysql2::Result partially moved to pure-Ruby

fix a bug when using the disconnect! method on a closed connection in the AR driver

quite a few patches from Eric Wong related to thread-safety, non-blocking I/O and general cleanup ** wrap mysql_real_connect with rb_thread_blocking_region ** release GVL for possibly blocking mysql_* library calls ** [cleanup] quiet down warnings ** [cleanup] make all C symbols static ** add Mysql2::Client#close method ** correctly free the wrapped result in case of EOF ** Fix memory leak from the result wrapper struct itself ** make Mysql2::Client destructor safely non-blocking
bug fixes for ActiveRecord adapter ** added casting for default values since they all come back from Mysql as strings (!?!) ** missing constant was added ** fixed a typo in the show_variable method
switched over sscanf for date/time parsing in C
made some specs a little finer-grained
initial Sequel adapter added
updated query benchmarks to reflect the difference between casting in C and in Ruby

optimization: implemented a local cache for rows that are lazily created in ruby during iteration. The MySQL C result is freed as soon as all the results have been cached
optimization: implemented a local cache for field names so every row reuses the same objects as field names/keys
refactor the Mysql2 connection adapter for ActiveRecord to not extend the Mysql adapter - now being a free-standing connection adapter

added an EventMachine Deferrable API
added an ActiveRecord connection adapter ** should be compatible with 2.3.5 and 3.0 (including Arel)

fix a bug (copy/paste fail) around checking for empty TIME values and returning nil (thanks @marius)