Hi,
MySQL 5.0.15, a new version of the popular Open Source Database
Management System, has been released. The Community Edition is now
available in source and binary form for a number of platforms from our
download pages at
http://dev.mysql.com/downloads/ and mirror sites.
Note that not all mirror sites may be up to date at this point in time -
if you can't find this version on some mirror, please try again later or
choose another download site.
This is the first production release of the 5.0 release family, which
offers substantial new features. For further information, please see:
* the separate email to [EMAIL PROTECTED] with the header
"Announcing MySQL 5.0"
* the web page with the major new features:
http://dev.mysql.com/doc/mysql/en/MySQL_5.0_Nutshell.html
Please pay special attention to the manual, section 2.10.2, "Upgrading
from Version 4.1 to 5.0.", and to the additional notes at the end of
this announcement.
MySQL has worked very hard to ensure a high level of quality, but as it
is starting a new release family, we recommend that you protect your
data by making a backup before migrating to it.
Please refer to our bug database at http://bugs.mysql.com/ for more
details about the individual bugs fixed in this version.
Functionality added or changed:
* Warning: Incompatible change. The CHAR() function now returns a binary
string rather than a string in the connection character set. An
optional USING charset clause may be used to produce a result in a
specific character set instead. Also, arguments larger than 256
produce multiple characters. They are no longer interpreted modulo
256 to produce a single character each. These changes may cause some
incompatibilities, as noted in Section 2.10.2, "Upgrading from
Version 4.1 to 5.0."
* NDBCluster: The perror utility included with the MySQL-Server RPM now
provides support for the --ndb option, and so can be used to obtain
error message text for MySQL Cluster error codes. (Bug #13740
(http://bugs.mysql.com/13740))
* When executing single-table UPDATE or DELETE queries containing an
ORDER BY ... LIMIT N clause, but not having any WHERE clause, MySQL
can now take advantage of an index to read the first N rows in the
ordering specified in the query. If an index is used, only the first
N records will be read, as opposed to scanning the entire table. (Bug
#12915 (http://bugs.mysql.com/12915))
* The MySQL-server RPM now explicitly assigns the mysql system user to
the mysql user group during the postinstallation process. This
corrects an issue with upgrading the server on some Linux
distributions whereby a previously existing mysql user was not
changed to the mysql group, resulting in wrong groups for files
created following the installation. (Bug #12823
(http://bugs.mysql.com/12823))
* Added the --tz-utc option to mysqldump. This option adds SET
TIME_ZONE='+00:00' to the dump file so that TIMESTAMP columns can be
dumped and reloaded between servers in different time zones and
protected from changes due to daylight saving time. (Bug #13052
(http://bugs.mysql.com/13052))
* When declaring a local variable (or parameter) named password or name,
and setting it with SET, e.g. SET password = '', the new error
message: ERROR 42000: Variable 'nnn' must be quoted with `...`, or
renamed is returned (where 'nnn' is 'password' or 'names'). This
means there is a syntax conflict with special sentences like SET
PASSWORD = PASSWORD(...) (for setting a user's password) and set
names default (for setting charset and collation).
This must be resolved either by quoting the variable name: SET
`password` = ..., which will set the local variable `password`, or by
renaming the variable to something else (if setting the user's
password is the desired effect).
* The following statements now cause an implicit COMMIT:
+ CREATE VIEW
+ ALTER VIEW
+ DROP VIEW
+ CREATE TRIGGER
+ DROP TRIGGER
+ CREATE USER
+ RENAME USER
+ DROP USER
* NDBCluster: A number of new or improved error messages have been
implemented in this release in order to provide better and more
accurate diagnostic information regarding cluster configuration
issues and problems. (Bug #11739 (http://bugs.mysql.com/11739),
Bug #11749 (http://bugs.mysql.com/11749),
Bug #12044 (http://bugs.mysql.com/12044),
Bug #12786 (http://bugs.mysql.com/12786),
Bug #13197 (http://bugs.mysql.com/13197))
* NDBCluster: A new "smart" node allocation algorithm means that it is
no longer necessary to use sequential IDs for cluster nodes, and that
nodes not explicitly assigned IDs should now have IDs allocated
automatically in most cases. In practical terms, this means that it
is now possible to assign a set of node IDs such as 1, 2, 4, 5
without an error being generated due to the missing 3. (Bug #13009
(http://bugs.mysql.com/13009))
Bugs fixed:
* Character set conversion was not being done for FIND_IN_SET(). (Bug
#13751 (http://bugs.mysql.com/13751))
* CAST(1E+300 TO SIGNED INT) produced an incorrect result on
little-endian machines. (Bug #13344 (http://bugs.mysql.com/13344))
* Corrected a memory-copying problem for big5 values when using icc
compiler on Linux IA-64 systems. (Bug #10836
(http://bugs.mysql.com/10836))
* On BSD systems, the system crypt() call could return an error for some
salt values. The error was not handled, resulting in a server crash.
(Bug #13619 (http://bugs.mysql.com/13619))
* Character set file parsing during mysql_real_connect() read past the
end of a memory buffer. (Bug #6413 (http://bugs.mysql.com/6413))
* InnoDB: Queries that were executed using an index_merge union or
intersection could produce incorrect results if the underlying table
used the InnoDB storage engine and had a primary key containing
VARCHAR members. (Bug #13484 (http://bugs.mysql.com/13484))
* CREATE DEFINER=... VIEW ... caused the server to crash when run with
--skip-grant-tables. (Bug #)
* The --interactive-timeout and --slave-net-timeout options for mysqld
were not being obeyed on Mac OS X and other BSD-based platforms. (Bug
#8731 (http://bugs.mysql.com/8731))
* Queries of the form (SELECT ...) ORDER BY ... were being treated as a
UNION. This improperly resulted in only distinct values being
returned (because UNION by default eliminates duplicate results).
Also, references to column aliases in ORDER BY clauses following
parenthesized SELECT statements were not resolved properly.
(Bug #7672 (http://bugs.mysql.com/7672))
* If special characters such as '_' , '%', or the escape character were
included within the prefix of a column index, LIKE pattern matching
on the indexed column did not return the correct result. (Bug #13046
(http://bugs.mysql.com/13046),Bug#13919(http://bugs.mysql.com/13919))
* An UPDATE query using a join would be executed incorrectly on a
replication slave. (Bug #12618 (http://bugs.mysql.com/12618))
* Server crashed during a SELECT statement, writing a message like this
to the error log:
InnoDB: Error: MySQL is trying to perform a SELECT
InnoDB: but it has not locked any tables in ::external_lock()!
(Bug #12736 (http://bugs.mysql.com/12736))
* NDBCluster: ndb_mgmd would allow a node to be stopped or restarted
while another node was still starting up, which could crash the
cluster. It should now not be possible to issue a node stop or
restart while a different node is still restarting, and the cluster
management client issues an error if an attempt is made to do
so. (Bug #13461 (http://bugs.mysql.com/13461))
* NDBCluster: Placing multiple [TCP DEFAULT] sections in the cluster
config.ini file crashed ndb_mgmd. (The ndb_mgmd process now exits
gracefully with an appropriate error message instead.) (Bug #13611
(http://bugs.mysql.com/13611))
* NDBCluster: Trying to run ndbd as system root when connecting to a
mysqld process running as the mysql system user via SHM caused the
ndbd process to crash. (ndbd should now exit gracefully with an
appropriate error message instead.) (Bug #9249
(http://bugs.mysql.com/9249))
* Server may over-allocate memory when performing a FULLTEXT search for
stopwords only. (Bug #13582 (http://bugs.mysql.com/13582))
* Queries that use indexes in normal SELECT statements may cause range
scans in VIEWs. (Bug #13327 (http://bugs.mysql.com/13327))
* When calling a stored procedure with the syntax CALL
schema.procedurename and no default schema selected, ERROR 1046 was
displayed after the procedure returned. (Bug #13616
(http://bugs.mysql.com/13616))
* With --log-slave-updates Exec_master_log_pos of SQL thread lagged IO
(Bug #13023 (http://bugs.mysql.com/13023))
* SHOW CREATE TABLE did not display any FOREIGN KEY clauses if a
temporary file could not be created. Now SHOW CREATE TABLE displays
an error message in an SQL comment if this occurs. (Bug #13002
(http://bugs.mysql.com/13002))
* A column in the ON condition of a join that referenced a table in a
nested join could not be resolved if the nested join was a right
join. (Bug #13597 (http://bugs.mysql.com/13597))
* A qualified reference to a view column in the HAVING clause could not
be resolved. (Bug #13410 (http://bugs.mysql.com/13410))
* comp_err did not detect when multiple error messages for a language
were given for an error symbol. (Bug #13071
(http://bugs.mysql.com/13071))
* For XA transaction IDs (gtrid.bqual.formatID), uniqueness is supposed
to be assessed based on gtrid and bqual. MySQL was also including
formatID in the uniqueness check. (Bug #13143
(http://bugs.mysql.com/13143))
* Local (non-XA) and XA transactions are supposed to be mutually
exclusive within a given client connection, but this prohibition was
not always enforced. (Bug #12935 (http://bugs.mysql.com/12935))
* mysqlcheck --all-databases --analyze --optimize failed because it also
tried to analyze and optimize the INFORMATION_SCHEMA tables which it
can't. (Bug #13783 (http://bugs.mysql.com/13783))
* SELECT * INTO OUTFILE ... FROM INFORMATION_SCHEMA.schemata failed with
an Access denied error. (Bug #13202 (http://bugs.mysql.com/13202))
* A table or view named Ç (C-cedilla) couldn't be dropped. (Bug #13145
(http://bugs.mysql.com/13145))
* Tests containing SHOW TABLE STATUS or INFORMATION_SCHEMA failed on
opnsrv6c. (Bug #14064, Bug #14065 (http://bugs.mysql.com/14065))
Additional notes:
* The build type "classic" (not published under GPL, requires a
commercial license) is discontinued.
* Platform identification in the package names has been simplified:
The vendor names, true ("apple", "hp", "ibm", "sgi", "sun") as
well as pseudo ("pc", "unknown"), have been dropped,
"linux-gnu" is now called simply "linux",
"solaris2.{8,9,10}" is simplified to "solaris{8,9,10}",
the OS X releases are now identified as "osx10.{3,4}" and not as
"darwin{7,8}".
* Linux binaries for the IA64 CPU are now compiled using Intel's "ICC"
compiler, version 9 (the download page may still show the previous
version number, 8.1).
* For the "x86" (32 bit) and "x86_64" (AMD, 64 bit) CPUs, the GNU "gcc"
compiler is used.
* No builds of version 5 are done for the "Tru64" operating system
(formerly Digital "OSF/1", then Compaq, now HP), for Linux using the
Alpha CPU, or for AIX version 4.3.
* For AIX 5.2, both 32 and 64 bit, the cluster engine ("NDB") is not
built, so the (GPL) "max" build does not contain that table handler,
and there is no (commercial license) build type "cluster" for AIX
5.2.
The MySQL Build Team,
Joerg Bruehe
--
Joerg Bruehe, Senior Production Engineer
MySQL AB, www.mysql.com
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