Hi!
This release mainly fixes some bugs in replication. If you are not
using replication you probably don't have any reasons to upgrade.
Changes in release 3.23.33
--------------------------
* Added `--character-sets-dir' to `myisampack'.
* Removed warnings when running `REPAIR TABLE .. EXTENDED'.
* Fixed core-dump bug when using `GROUP BY' on an alias, where the
alias was the same as an existing column name.
* Added `SEQUENCE()' as an example UDF function.
* Changed `mysql_install_db' to use `BINARY' for `CHAR' columns in
the privilege tables.
* Changed `TRUNCATE table_name' to `TRUNCATE TABLE table_name' to
use the same syntax as Oracle. Until 4.0 we will also allow
`TRUNCATE table_name' to not crash old code.
* Fixed 'no found rows' bug in `MyISAM' tables when a `BLOB' was
first part of a multi-part key.
* Fixed bug where `CASE' didn't work with `GROUP BY'.
* Added option `--sort-recover' to `myisamchk'.
* `myisamchk -S' and `OPTIMIZE TABLE' now work on Windows.
* Fixed bug when using `DISTINCT' on results from functions that
referred to a group function, like `SELECT a,DISTINCT
SEC_TO_TIME(sum(a)) from table_name GROUP BY a,b'.
* Fixed buffer overrun in `libmysqlclient' library. Fixed bug in
handling `STOP' event after `ROTATE' event in replication.
* Fixed another buffer overrun in `DROP DATABASE'.
* Added `Table_locks_immediate' and `Table_locks_waited' status
variables.
* Fixed bug in replication that broke slave server start with
existing `master.info'. This fixes a bug introduced in 3.23.32.
* Added `SET SQL_SLAVE_SKIP_COUNTER=n' command to recover from
replication glitches without a full database copy.
* Added `max_binlog_size' variable; the binary log will be rotated
automatically when the size crosses the limit.
* Added `Last_error', `Last_errno', and `Slave_skip_counter' to
`SHOW SLAVE STATUS'.
* Fixed bug in `MASTER_POS_WAIT()' function.
* Execute coredump handler on `SIGILL', and `SIGBUS' in addition to
`SIGSEGV'.
* On x86 Linux, print the current query and thread (connection) id, if
available, in the coredump handler.
* Fixed several timing bugs in the test suite.
* Extended `mysqltest' to take care of the timing issues in the test
suite.
* `ALTER TABLE' can now be used to change the definition for a
`MERGE' table.
* Fixed creation of `MERGE' tables on Windows.
* Portability fixes for OpenBSD and OS2.
* Added -temp-pool option to mysqld. Using this option will cause
most temporary files created to use a small set of names, rather
than a unique name for each new file. This is to work around a
problem in the Linux kernel dealing with creating a bunch of new
files with different names. With the old behavior, Linux seems to
"leak" memory, as it's being allocated to the directory entry
cache instead of the disk cache.
Regards,
Monty
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