Changes in release 3.23.3
-------------------------
* Added patches for MIT-pthreads on NetBSD.
* Fixed range bug in MyISAM.
* `ASC' is now the default again for `ORDER BY'.
* Added `LIMIT' to `UPDATE'.
* New client function: `mysql_change_user()'.
* Added character set to `SHOW VARIABLES'.
* Added support of `--[whitespace]' comments.
* Allow `INSERT into tbl_name VALUES ()', that is, you may now
specify an empty value list to insert a row in which each column
is set to its default value.
* Changed `SUBSTRING(text FROM pos)' to conform to ANSI SQL. (Before
this construct returned the rightmost 'pos' characters).
* `SUM()' with `GROUP BY' returned 0 on some systems.
* Changed output for `SHOW TABLE STATUS'.
* Added `DELAY_KEY_WRITE' option to `CREATE TABLE'.
* Allow `AUTO_INCREMENT' on any key part.
* Fixed problem with `YEAR(NOW())' and `YEAR(CURDATE())'.
* Added `CASE' construct.
* New function `COALESCE()'.