On Sat, Aug 13, 2005 at 04:01:38PM +0100, Pooly wrote:
ALTER TABLE sessions MODIFY ip char(8) NOT NULL DEFAULT '0';
ALTER TABLE sessions MODIFY id char(32) NOT NULL DEFAULT '';
Hello,
Since you have two varchar columns, I don't think there's any way to
convert them both to char without
On Sat, Aug 13, 2005 at 05:37:56PM +0100, Pooly wrote:
Damnit !
Thanks for pointing it, I forgot these things.
But it's a bit more subtle :
[snip]
Bah, should have waited another 5 minutes before I bothered posting my
last long-winded ramble ;)
ALTER TABLE sessions MODIFY id char(32) NOT
Hello,
I have a feature request for mysqldump that would greatly ease a
current task I have; in my replicated setup my master is currently
MyISAM (as are most slaves), but I have one slave that is InnoDB for
testing.
Somehow or other, it's gotten itself out of sync, so I'm in the
position of
On Fri, Feb 11, 2005 at 10:45:46AM -0500, [EMAIL PROTECTED] wrote:
Normally I do not reply to myself but I just realized that in my previous
response I confused COUNT(*) (which is slow for InnoDB because it always
does a table scan to resolve the version lock of each and every row) with
On Mon, Oct 18, 2004 at 11:19:55AM +0800, Louie Miranda wrote:
mysql select * from fullsearch where match (title,body) against ('018-E');
Empty set (0.00 sec)
it returns an empty set, is it possible to also search with - dash? chars?
If I remember correctly, you need to pass the string
On Tue, Jul 20, 2004 at 10:39:00AM +1000, Lachlan Mulcahy wrote:
Chris,
Have you checked your following server configurables:
sort_buffer_size:
- This is the size of the cache created by _each_ thread that requires
ORDER BY or GROUP BY in a query.
If you are doing a lot of large
Hello,
I wonder if someone could shed some light on a problem that's been bothering
me for months. Please bear with me as I explain it..
I have two tables in question:
CREATE TABLE `News` (
`FileID` int(8) unsigned NOT NULL auto_increment,
`Subject` char(200) NOT NULL default '',
On Wed, Jun 09, 2004 at 01:45:49PM +0100, Marvin Wright wrote:
Hi,
We are about to build some new database servers and I have some questions
which I'd like some advice on.
The machines we are building have 4 Xeon 2GHz CPU's, 4 x 32GB SCSI disk
using RAID 1+0 (so thats 64GB of storage) and
On Tue, Jun 01, 2004 at 09:28:37AM -0400, adam wrote:
mysqldump --user=root --password=root-password --opt bugs
$BACKUPDIR$BACKUPSQLFILE
My problem is that it does not seem to work when the crond calls the script.
The result of the dump is a zero size sql file.
Don't you get the output
On Mon, May 31, 2004 at 02:03:09PM +0200, Michael Arndt wrote:
Problem for this variant: merge table has to be dropped and recreated
periodically.
during the short lag interval the log merge table
does not exist
On Sat, May 22, 2004 at 11:25:54PM -0500, mos wrote:
Once I wiped this and tried Linux (both gentoo, with their
patched-to-the-hilt 2.6.5 kernel, and Debian, with a stock 2.6.6 which
had just been released by the time I installed) this figure jumped to
35,000 queries per second.
First of
Forenote: I have no wish to start an OS debate.
Hello,
I'm in the fortunate position of having a dual 2.8GHz Xeon with 4G of
ram and 4 10k SCSI disks (configured in RAID-10) to deploy as a new
MySQL server.
Since I'm a numbers freak, I've been running super-smack on it for the
last few days to
On Fri, May 21, 2004 at 05:18:09PM -0600, Sasha Pachev wrote:
It looks like FreeBSD was using only one CPU from your numbers. Try the
test with only 1 thread and a lot of iterations to avoid the influence of
overhead. I know very little about FreeBSD, but one thing I would check is
if the
On Mon, May 17, 2004 at 08:43:44PM -0700, JG wrote:
Has ANYONE been able to get super-smack-1.2 to compile as-is on FreeBSD?
./configure --with-mysql
make
make install
Without errors?
No, it required various code changes. A colleague of mine made the
changes, I can probably get them
On Tue, May 18, 2004 at 03:46:46AM -0700, JG wrote:
At 11:31 AM 5/18/2004 +0100, you wrote:
On Mon, May 17, 2004 at 08:43:44PM -0700, JG wrote:
Has ANYONE been able to get super-smack-1.2 to compile as-is on FreeBSD?
./configure --with-mysql
make
make install
Without errors?
On Wed, May 05, 2004 at 01:06:45PM -0400, Brent Baisley wrote:
Basically, you can't, it's a limitation of the InnoDB format. If you
change the table type to MyISAM, that query would be almost
instantaneous. But you are probably using InnoDB for a reason, so you
may be stuck if you want a
Hello,
Further to my MERGE table query the other day, I've now put it into
action and it seems to be working fine. However I'm noticing that
INSERT LOW_PRIORITY statements are blocking when there are SELECTs
running.
Does anyone know if concurrent inserts work with MERGE tables? Are
there any
On Wed, Mar 24, 2004 at 01:23:53PM +, Chris Elsworth wrote:
I'm wondering if specifying LOW_PRIORITY disables concurrent inserts
explicitly, so I'll try removing that and see if anything improves,
but in the meantime, if anyone has any advice, please share :)
Ignore that bit. Found
Hello,
Just a quick question to see if anyone's tried this and run into any
problems, or if it'll even work - I have a *huge* table that's just
crashed thanks to FreeBSD panicking, and the repair operation I'm
estimating is going to be another 4 hours :(
But anyway, I'm pondering over splitting
On Mon, Mar 22, 2004 at 01:40:29PM -0600, Dan Nelson wrote:
In the last episode (Mar 22), Chris Elsworth said:
Now that's all well and good and I'm fairly sure it'll all work, but
another interesting idea I was wondering over was - can I myisampack
the tables that I know won't be updated
Hello,
Does anyone know if InnoDB Hot Backup supports the new tablespace
format being introduced in the latest versions of InnoDB?
I'm quite tempted to switch from MyISAM to InnoDB using the new
tablespace format, but I'm put off by how inflexible InnoDB files seem
to be. I like being able to
On Mon, Feb 02, 2004 at 07:16:13PM +0530, Nitin Mehta wrote:
Hi all,
I m looking for any function or a work around to fetch numerical data without its
sign (-10 -- 10, 10 -- 10). Any ideas?
ABS() :
mysql select abs(-10);
+--+
| abs(-10) |
+--+
| 10 |
+--+
On Mon, Jan 26, 2004 at 10:40:02AM -0600, Paul Fine wrote:
I realize that this might be problematic/devastating if you had an AI PK and
did this, however in my case there is no problem as there is no related data
in the database yet lol.
My question is, how can I reset AI? For example I
On Tue, Jan 13, 2004 at 02:03:26AM -0500, [EMAIL PROTECTED] wrote:
select prodid,count(groupid) as cnt from products
where (groupid=65 or groupid=66)
group by imgsml having cnt1;
I.e. replacing order by with a having clause. After trying many variations; are
'order by' and 'having'
On Thu, Jan 01, 2004 at 05:42:59PM -0500, Gohaku wrote:
Hi everyone,
I was just curious if there's a shorthand way of replicating a Table
Schema.
I use the following to create a new Table with the same schema.
create table new_table ( select * from table);
delete from new_table;
CREATE
On Sat, Dec 27, 2003 at 02:08:08PM +, Abs wrote:
hi
i was trying to group my results 10 per page ($p per
per page). if i use limit, then there's no way of
knowing how many there are left so i can't give page
numbers as:
first 2 3 4 last . perhaps running the query
twice, first time
On Thu, Dec 18, 2003 at 05:28:30PM -0200, Carlos Andr? Moura de Amorim wrote:
031217 14:32:34 Warning: setrlimit couldn't increase number of open files
to more than 256 (request: 510)
It might be worth putting a ulimit -n 1024 (or some other decent
number) in the rc.d script that starts
On Sun, Dec 14, 2003 at 03:53:00PM -0500, Dan Anderson wrote:
I have a database I'm using for a MMORPG (well, it isn't very
MM because I'm something of a noob), and I have a few questions about
indexing. I am storing world data in a database. In order to keep
everything as
On Mon, Dec 15, 2003 at 10:59:32AM -, Curley, Thomas wrote:
Guys
Any idea why this query will not work in 4.0.13
select batch_id from BATCH
where NOT EXISTS (select 1 from TXN where TXN.batch_id = BATCH.batch_id)
You have an error in your SQL syntax near 'EXISTS (select * from TXN
Hello,
Just a quickie. Does anyone know if issueing an ALTER TABLE t ORDER BY c
is as good as an OPTIMIZE TABLE if I know the order I'll mostly be
sorting with? Does the ALTER TABLE operation reclaimed deleted rows,
for example? Or should I OPTIMIZE and then ALTER?
Cheers :)
--
Chris
--
On Tue, Dec 09, 2003 at 12:17:41PM +0100, David Bordas wrote:
So, i'm using INSERT DELAYED with some good succes.
But I've got a question.
If i decrease delayed_insert_limit to ten secondes for example, is that mean
that delayed_queue will be flushed every ten secondes ?
Is there an other
On Tue, Dec 09, 2003 at 02:18:58PM +0100, David Bordas wrote:
I've read mysql doc sereval times, but i can't find any varaible that
specify when the delayed queue was flushed.
Well, I suppose that's because there isn't one. The DELAYED thread
handles that by itself. You don't want it too
On Sun, Dec 07, 2003 at 01:48:08PM +0100, Sergei Golubchik wrote:
What is WITH QUERY EXPANSION? I found no details in manual.
Fixed.
WITH QUERY EXPANSION is now documented.
I'm sorry, but I must be blind. Where is it on
http://www.mysql.com/doc/en/Fulltext_Search.html ?
Did someone forget
On Sun, Dec 07, 2003 at 12:11:21AM -0500, Alex Khordos wrote:
I am trying to work out the query to retrieve city name based on the zip
code in the second table.
How can I compare two strings? I tried LIKE in my query but it did not work.
Use SUBSTRING to cut down the extended zipcode to 5
On Sat, Dec 06, 2003 at 03:52:05PM +0100, Franz Edler wrote:
The msqld.log file shows:
031206 15:05:20 mysqld started
031206 15:05:20 Fatal error: Can't open privilege tables:
Can't find file: './mysql/host.frm' (errno: 13)
031206 15:05:20 Aborting
031206
On Sat, Dec 06, 2003 at 08:20:57PM +0100, Franz Edler wrote:
Errno 13 is Permission Denied. Is the mysql daemon running with
sufficient privileges to read the directory and files within it?
All the database files should be owned by the mysql user, and are
generally in the mysql group,
Hello,
I have quite a large table, 45 million rows, which has 3 indexes on
it. The rows are evenly distributed across one particular index, which
records the time the row was inserted. At any given time there's
between 20 and 21 days worth of rows, and every night I delete
anything over 20 days.
Hello,
On Fri, Dec 05, 2003 at 12:02:05PM +0100, Martin Gillstr?m wrote:
The table can look something like this:
row_id INT PRIMARY KEY
where_column SET('a','b','c')
groupby_column VARCHAR(255)
orderby_column DATE
.. more rows that I need to fetch with the select.
This is what I have
On Wed, Nov 26, 2003 at 06:44:57PM -0600, Matt W wrote:
Hi Chris,
It doesn't take MySQL any more or less time to update a unique index
than a non-unique one. :-)
Ah, a nice simple answer to a long drawn out question :) Thanks Matt,
just the reassurance I was after, I didn't want inserts to
Hello,
Most of the time, MySQL 4.0.16 runs absolutely fine on my FreeBSD 4.9
system. However, today, unexplicably, it's run into the same problem 3
times now; a couple of the threads suddenly start eating 100% CPU for
no good reason while doing a SELECT. They'll sit there until I kill
them, which
Hello,
Let me just outline the table in question first.
I have a rather large (40,000,000 rows) table as follows:
Table: MessageIDs
Create Table: CREATE TABLE `MessageIDs` (
`mid_msgid` char(96) NOT NULL default '',
`mid_fileid` int(10) unsigned NOT NULL default '0',
`mid_segment`
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