MySQL Reference Manual for version 4.0.18.
C.4.52 Changes in release 3.23.9
-
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 document was generated
by rdg (Feb 25 2004)
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