MySQLのための.NETドライバーの新バージョン、MySQL Connector/Net 5.1.3 RCがリリースされました。
************* 重要 ********************
Connector/Net 5.1より、我々の製品のパッケージ方法が変更されます。今までは、コアプロダクトとVisual Studio integration bitsを個別のダウンロードとして出荷していました。これが少し問題になってきました。VSパッケージとcore providerの両方における変更コードを含んだバグを私達はしばしば修正しようとします。このことにより、バグ修正の効果を確認のために、両製品ともにユーザがアップグレードしなければならないというバージョン問題が発生しました。この解決のため、個別の製品としてのVisual Studio用ツールを廃止し、新たなConnector/Netインストーラ内にツールを統合することに決定しました。このことにより、ユーザがより独創的な技術を味わって頂くよう願っています。この製品をインストールする前に、Visual Studio用ツールの以前のバージョン全てをアンインストールする必要があります。
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バージョン5.1.3は、MySQL4.1、MySQL5.0、MySQL5.1ベータ版、MySQL6.0 ファルコン"プレビュー"を含む全てのバージョンのMySQLで稼動します。
このバージョンはベータ版ですので、製品環境などで使用しないよう注意してください。
ソースとバイナリは、[http://dev.mysql.com/downloads/connector/net/5.1.html]とミラーサイトで利用可能です。
（全てのミラーサイトが最新であるとは限らないことに注意してください。 もし、ミラーサイトでこのバージョンを見つけることができなければ、
時間をおいて再度ダウンロードを試みるか、他のダウンロードをしようしてください。）
== Issues fixed ==
* Fixed problem with using a stored procedure that takes a parameter as
a select routine for a TableAdapter wizard. (Bug #29098)
* Fixed problem with creating users using hashed passwords when
machineKey is set to AutoGenerate. We now correctly throw an exception
if you are requesting encrypted passwords but it works ok for hashed
passwords. (Bug #29235)
* Fixed problem with selecting users for roles in the web admin tool.
The problem was that we had a simple syntax error in our database lookup
code. (Bug #29236)
* Added AutoEnlist connection string option. Setting it to false will
prevent the connectionfrom automatically enlisting in any current
transaction
* Changed membership schema to allow null values for email. This allows
all the overrides for Membership.CreateUser to work. * Added 'Respect
Binary Flags' connection string option to allow existing applications to
select the old behavior of not always respecting the binary flags of a
columns.
* Added ability to use blobs to store true UTF-8 data (see help)
* Help is now integrated into Visual Studio 2005 and includes content
other than the API
* Fixed problem reported by user where MySqlMembershipProvider.GetUser
was attempting to reuse the connection to update a table while a reader
was open on it. * Fixed problem with membership schema where the
password key column was not large enough
* Added feature where bit columns that have the value 0 or 1 are
returned as bool
* Added Foreign Key Columns metadata collection
* Reworked how foreign key metadata is collected to make it more robust
and faster
* Changed DDEX provider to use the core providers schema routines for
foreign keys and foreign key columns
* Fixed index and foreign key enumerators inside the DDEX provider to
work with the new binary respect behavior of 5.1
* Added code to implement better TransactionScope support. This code is
brand new and will be heavily refactored in 5.2. (bug #28709)
* Fixed problem where connecting to pre-4.1 servers would result in a
crash. This was caused by the Field object referring to metadata columns
that are not populated on pre-4.1 servers. (bug #29476)
* Commandbuilder now defaults ReturnGeneratedIdentifiers to true. This
means that autogenerated columns will be returned in the default case.
* Exceptions generated during BeginExecuteReader and
BeginExecuteNonQuery will now be thrown once the End versions of those
methods are called.
== Changes integrated from 5.0.8 ==
* Log messages are no longer truncated at 300 characters (bug #28706)
* Fixed a problem with compression over a network. We were letting the
inflate stream read directly from the network stream. Under certain
situations, two bytes were being left unread and this messed up our byte
counts. Now we are using a WeakReference to an internal buffer
that we read the compressed data into before inflating. (Bug #28204)
* Fixed problem where we were not closing prepared statement handles
when commands are disposed.
* Fixed problem where any attempt to not read all the records returned
from a select where each row of the select is greater than 1024 bytes
would hang the driver.
* Fixed problem where usage advisor warnings for unnecessary field
conversions and not reading all rows of a resultset would output even if you
did not request usage advisor warnings. (Bug #29124)
* Changed behavior of ConnectionString property. It now only returns
the connection string given to it. It will not attempt to track changes
to the current database when the users uses the ChangeDatabase method.
(Bug #29123)
* Fixed problem with calling stored procedures in databases that have
hyphens in their names. We were not using backticks to quote the
database and sproc name when querying for metadata. (Bug #29526)
* Fixed problem where a statement that has parameters that is executed
without defining those parameters would throw a System.FormatException
rather than a MySqlException (bug #29312) * Fixed problem where a
command timing out just after it actually finished would cause an
exception to be thrown on the command timeout thread which would then be
seen as an unhandled exception.
* Fixed bug where Connecor/Net was hand building some date time patterns
rather than using the patterns provided under CultureInfo. This caused
problems with some calendars that do not support the same ranges as
Gregorian. (Bug #29931)
* Fixed problem where MySqlConnection.BeginTransaction checked the
drivers status var before checking if the connection was open. The
result was that the driver could report an invalid condition on a
previously opened connection. * Fixed problem where an attempt to open
a connection max pool size times while the server is down will prevent
any further attempts due to the pool semaphore being full. (Bug
#29409) * Fixed some serious issues with command timeout and cancel
that could present as exceptions about thread ownership. The issue was
that not all queries cancel the same. Some produce resultsets while
others don't. ExecuteReader had to be changed to check for this.
* Fixed problem where date columns that appear in keys caused updates to
fail (bug #30077)
* Added code to suppress finalizers for low level socket objects and
then added a finalizer to the protocol object so pooled connections will
get closed on process exit * Fixed problem where attempting to
load a reader into a datatable using a table with a multi-column primary
key would result in multiple constraints being added to the datatable.
No test case added to the 1.0 tree as loading a datatable with a reader
is a .Net 2.0 thing. (Bug #30204)
* Fixed the database schema collection so that it works on servers that
are not properly respecting the lower_case_table_names setting.