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MySQL News 23956 게시물 읽기
 News | Q&A | Columns | Tutorials | Devel | Files | Links
No. 23956
MySQL Connector/J 3.1.9 has been released!
작성자
이경환(babocom)
작성일
2005-06-23 10:15:07
조회수
8,327

JDBC Connector 입니다...

====================================================================

Hi,

MySQL Connector/J 3.1.9, a new version of the Type-IV all-Java JDBC
driver for MySQL has been released.

Version 3.1.9 is the latest production release of the 3.1 series that is
suitable for use with all versions of MySQL, including MySQL-4.1 or
MySQL-5.0. Connector/J 3.1.9 is required if you want to use server-side
prepared statements with MySQL-4.1.2 or newer, or CallableStatements
with MySQL-5.0.

Sources and binaries are now available from the Connector/J
download pages at http://dev.mysql.com/downloads/connector/j/3.1.html
as well as mirror sites (note that not all mirror sites may be up to
date at this point of time - if you can't find this version on some
mirror, please try again later or choose another download site.)

If you are upgrading from Connector/J 3.0, or are upgrading from
MySQL-4.0 to MySQL-4.1 or 5.0, please make sure to check out the
'Upgrades' section in the documentation that comes with the driver, or
available on the web site at

http://dev.mysql.com/doc/connector/j/en/cj-upgrading-3-0-to-3-1.html

-Mark

- From the changelog:

06-22-05 - Version 3.1.9-stable

- Overhaul of character set configuration, everything now
lives in a properties file.

- Driver now correctly uses CP932 if available on the server
for Windows-31J, CP932 and MS932 java encoding names,
otherwise it resorts to SJIS, which is only a close
approximation. Currently only MySQL-5.0.3 and newer (and
MySQL-4.1.12 or .13, depending on when the character set
gets backported) can reliably support any variant of CP932.

- Fixed BUG#9064 - com.mysql.jdbc.PreparedStatement.ParseInfo
does unnecessary call to toCharArray().

- Fixed Bug#10144 - Memory leak in ServerPreparedStatement if
serverPrepare() fails.

- Actually write manifest file to correct place so it ends up
in the binary jar file.

- Added "createDatabaseIfNotExist" property (default is "false"),
which will cause the driver to ask the server to create the
database specified in the URL if it doesn't exist. You must have
the appropriate privileges for database creation for this to
work.

- Fixed BUG#10156 - Unsigned SMALLINT treated as signed for
ResultSet.getInt(), fixed all cases for UNSIGNED integer values and
server-side prepared statements, as well as ResultSet.getObject() for
UNSIGNED TINYINT.

- Fixed BUG#10155, double quotes not recognized when parsing
client-side prepared statements.

- Made enableStreamingResults() visible on
com.mysql.jdbc.jdbc2.optional.StatementWrapper.

- Made ServerPreparedStatement.asSql() work correctly so auto-explain
functionality would work with server-side prepared statements.

- Made JDBC2-compliant wrappers public in order to allow access to
vendor extensions.

- Cleaned up logging of profiler events, moved code to dump a profiler
event as a string to com.mysql.jdbc.log.LogUtils so that third
parties can use it.

- DatabaseMetaData.supportsMultipleOpenResults() now returns true. The
driver has supported this for some time, DBMD just missed that fact.

- Fixed BUG#10310 - Driver doesn't support {?=CALL(...)} for calling
stored functions. This involved adding support for function retrieval to
DatabaseMetaData.getProcedures() and getProcedureColumns() as well.

- Fixed BUG#10485, SQLException thrown when retrieving YEAR(2)
with ResultSet.getString(). The driver will now always treat YEAR types
as java.sql.Dates and return the correct values for getString().
Alternatively, the "yearIsDateType" connection property can be set to
"false" and the values will be treated as SHORTs.

- The datatype returned for TINYINT(1) columns when
"tinyInt1isBit=true" (the default) can be switched between Types.BOOLEAN
and Types.BIT using the new configuration property
"transformedBitIsBoolean", which defaults to "false". If set to "false"
(the default), DatabaseMetaData.getColumns() and
ResultSetMetaData.getColumnType() will return Types.BOOLEAN for
TINYINT(1) columns. If "true", Types.BOOLEAN will be returned instead.
Irregardless of this configuration property, if "tinyInt1isBit" is
enabled, columns with the type TINYINT(1) will be returned as
java.lang.Boolean instances from ResultSet.getObject(..), and
ResultSetMetaData.getColumnClassName() will return "java.lang.Boolean".

- Fixed BUG#10496 - SQLException is thrown when using property
"characterSetResults" with cp932 or eucjpms.

- Reorganized directory layout, sources now in "src" folder,
don't pollute parent directory when building, now output goes to
"./build", distribution goes to "./dist".

- Added support/bug hunting feature that generates .sql test
scripts to STDERR when "autoGenerateTestcaseScript" is set
to "true".

- Fixed BUG#10850 - 0-length streams not sent to server when
using server-side prepared statements.

- Setting "cachePrepStmts=true" now causes the Connection to also cache
the check the driver performs to determine if a prepared statement can
be server-side or not, as well as caches server-side
prepared statements for the lifetime of a connection. As before, the
"prepStmtCacheSize" parameter controls the size of these caches.

- Try to handle OutOfMemoryErrors more gracefully. Although not
much can be done, they will in most cases close the connection they
happened on so that further operations don't run into a connection in
some unknown state. When an OOM has happened, any further operations on
the connection will fail with a "Connection closed" exception that will
also list the OOM exception as the reason for the implicit connection
close event.

- Don't send COM_RESET_STMT for each execution of a server-side
prepared statement if it isn't required.

- Driver detects if you're running MySQL-5.0.7 or later, and does not
scan for "LIMIT ?[,?]" in statements being prepared, as the
server supports those types of queries now.

- Fixed BUG#11115, Varbinary data corrupted when using server-side
prepared statements and ResultSet.getBytes().

- Connection.setCatalog() is now aware of the "useLocalSessionState"
configuration property, which when set to true will prevent the driver
from sending "USE ..." to the server if the requested catalog is the
same as the current catalog.

- Added the following configuration bundles, use one or many via
the "useConfigs" configuration property:

* maxPerformance -- maximum performance without being reckless
* solarisMaxPerformance -- maximum performance for Solaris,
avoids syscalls where it can
* 3-0-Compat -- Compatibility with Connector/J 3.0.x functionality

- Added "maintainTimeStats" configuration property (defaults to
"true"), which tells the driver whether or not to keep track of the last
query time and the last successful packet sent to the server's time. If
set to false, removes two syscalls per query.

- Fixed BUG#11259, autoReconnect ping causes exception on connection
startup.

- Fixed BUG#11360 Connector/J dumping query into SQLException twice
- Fixed PreparedStatement.setClob() not accepting null as a parameter.

- Fixed BUG#11411 - Production package doesn't include JBoss
integration classes.

- Removed nonsensical "costly type conversion" warnings when using
usage advisor.

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