Fixed problem that affected queries that did arithmetic on group functions.
            Fixed problem with timestamps and INSERT
            DELAYED.
          
            Fixed that date_col BETWEEN const_date AND
            const_date works.
          
            Fixed problem when only changing a 0 to
            NULL in a table with
            BLOB/TEXT columns.
          
            Fixed bug in range optimizer when using many key parts and
            or on the middle key parts: WHERE K1=1 and K3=2 and
            (K2=2 and K4=4 or K2=3 and K4=5)
          
            Added source command to
            mysql to allow reading of batch files
            inside the mysql client. Original patch
            by Matthew Vanecek.
          
            Fixed critical problem with the WITH GRANT
            OPTION option.
          
            Don't give an unnecessary GRANT error
            when using tables from many databases in the same query.
          
Added VIO wrapper (needed for SSL support; by Andrei Errapart and Tõnu Samuel).
            Fixed optimizer problem on SELECT when
            using many overlapping indexes. MySQL should now be able to
            choose keys even better when there are many keys to choose
            from.
          
            Changed optimizer to prefer a range key instead of a ref key
            when the range key can uses more columns than the ref key
            (which only can use columns with =). For
            example, the following type of queries should now be faster:
            SELECT * from key_part_1=const and key_part_2 >
            const2
          
            Fixed bug that a change of all VARCHAR
            columns to CHAR columns didn't change row
            type from dynamic to fixed.
          
            Disabled floating-point exceptions for FreeBSD to fix core
            dump when doing SELECT FLOOR(POW(2,63)).
          
            Renamed mysqld startup option from
            --delay-key-write to
            --delay-key-write-for-all-tables.
          
            Added read-next-on-key to
            HEAP tables. This should fix all problems
            with HEAP tables when using
            non-UNIQUE keys.
          
Added option to print default arguments to all clients.
            Added --log-slow-queries option to
            mysqld to log all queries that take a
            long time to a separate log file with a time indicating how
            long the query took.
          
            Fixed core dump when doing WHERE
            key_col=RAND(...).
          
            Fixed optimization bug in SELECT ... LEFT JOIN ...
            key_col IS NULL, when key_col
            could contain NULL values.
          
            Fixed problem with 8-bit characters as separators in
            LOAD DATA INFILE.
          
This is a translation of the MySQL Reference Manual that can be found at dev.mysql.com. The original Reference Manual is in English, and this translation is not necessarily as up to date as the English version.

