manual.texi Minor cleanups to recent change notes.

@appendixsubsec Changes in release 3.23.26

@itemize @bullet

@item

Fixed that @code{<>} works properly with @code{NULL}.

Fixed @code{<>} to work properly with @code{NULL}.

@item

Fixed problem with @code{SUBSTRING_INDEX()} and @code{REPLACE()}.

(Patch by Alexander Igonitchev)

@item

@code{CREATE TEMPORARY TABLE IF NOT EXISTS} doesn't anymore give an error

if the table existed.

Fix @code{CREATE TEMPORARY TABLE IF NOT EXISTS} not to give an error

if the table exists.

@item

If one don't create a @code{PRIMARY KEY} in a BDB table, a hidden

If you don't create a @code{PRIMARY KEY} in a BDB table, a hidden

@code{PRIMARY KEY} will be created.

@item

Added read-only-key optimization to BDB tables.

@item

@code{LEFT JOIN} did in some case prefer a full table scan when one

didn't have a @code{WHERE} clause.

@code{LEFT JOIN} in some cases preferred a full table scan when there was

no @code{WHERE} clause.

@item

When using @code{--log-slow-queries}, don't count the time waiting for a lock.

@item

Fixed bug in lock code on @code{windows} which could cause the key cache

to report that the key file was crashed even if it was ok.

to report that the key file was crashed even if it was okay.

@item

Automatic repair of @code{MyISAM} tables if you start @code{mysqld} with

@code{--myisam-recover}.

@item

Removed the @code{TYPE=} keyword from @code{CHECK} and

@code{REPAIR}. Allow one to combine @code{CHECK} options. (One can still

@code{REPAIR}. Allow @code{CHECK} options to be combined. (You can still

use @code{TYPE=} but this usage is deprecated).

@item

Fixed mutex bug in the binary replication log - long update queries could