: Re: InnoDb Table Performance problem
Michael McTernan wrote:
Hi there,
I'm making something similar to a file revision control system, and using
MySQL on Linux as the database to drive it. Almost all my tables are
InnoDB, and generally it is going very well, with the exception
of one
McTernan
Cc: Mysql
Subject: Re: InnoDb Table Performance problem
Michael McTernan wrote:
Hi there,
I'm making something similar to a file revision control system, and using
MySQL on Linux as the database to drive it. Almost all my tables are
InnoDB, and generally it is going very well
Michael McTernan wrote:
Hi,
SELECT COUNT(*) for InnoDB tables is a know problem... The table
handler (for InnoDB) has to do a table scan to count all rows... This
particular case is optimized with MyISAM ...
Sure. But why is the tablescan ~100 times faster for the table without the
PROTECTED]
Sent: 12 February 2004 14:04
To: Michael McTernan
Cc: Mysql
Subject: Re: InnoDb Table Performance problem
Michael McTernan wrote:
Hi,
SELECT COUNT(*) for InnoDB tables is a know problem... The table
handler (for InnoDB) has to do a table scan to count all rows
.
Thanks,
Mike
-Original Message-
From: Chris Nolan [mailto:[EMAIL PROTECTED]
Sent: 12 February 2004 12:23
To: Michael McTernan
Cc: Benoit St-Jean; Mysql
Subject: Re: InnoDb Table Performance problem
Michael McTernan wrote:
Hi,
SELECT COUNT(*) for InnoDB tables is a know
: InnoDb Table Performance problem
Michael McTernan wrote:
Hi,
SELECT COUNT(*) for InnoDB tables is a know problem... The table
handler (for InnoDB) has to do a table scan to count all rows... This
particular case is optimized with MyISAM ...
Sure. But why is the tablescan
Subject: Re: InnoDb Table Performance problem
Michael McTernan wrote:
Hi there,
I would try to sum it up like this:
1. Discs work best when used as purely sequential devices.
2. Inserting those BLOBs takes up space somewhere. Strictly speaking, on
the disc they may very well be in between
Hi there,
I'm making something similar to a file revision control system, and using
MySQL on Linux as the database to drive it. Almost all my tables are
InnoDB, and generally it is going very well, with the exception of one table
that is always very slow.
This table holds the files within the
Michael McTernan wrote:
Hi there,
I'm making something similar to a file revision control system, and using
MySQL on Linux as the database to drive it. Almost all my tables are
InnoDB, and generally it is going very well, with the exception of one table
that is always very slow.
This table