Re: [libreoffice-users] Base Compact and Shutdown

On 12/31/2012 03:26 AM, Mark Stanton wrote:
> Even if it existed, I would be quite surprised if such a thing is
> necessary for MySQL.
>
> Looking through the (5.1) manual, the only references to "compact"
> (as a verb) as to do with dumping data and a storage structure
> option.  There is nothing (that I can see) listed for it as a
> shutdown option.
>
> It's the difference between an "embedded" database file and a
> database engine.  MySQL is a database engine.  You only need to send
> it requests and get answers back from it.  Otherwise it does all its
> own housekeeping and management.  You don't tell it to compact its
> data.
>
> Regards
> Mark Stanton
> One small step for mankind...compact
     From the MySQL Reference Manual 5.1:

"InnoDB tables use a compact storage format. In versions of MySQL 
earlier than 5.0.3, InnoDB rows contain some redundant information, such 
as the number of columns and the length of each column, even for 
fixed-size columns. By default, tables are created in the compact format 
(ROW_FORMAT=COMPACT). If you wish to downgrade to older versions of 
MySQL, you can request the old format with ROW_FORMAT=REDUNDANT."

I also noticed that mysqldump--compact is used on the command line. 
There are some known bugs when using this to backup the database that 
are also listed in the reference manual. Personally, I would use MySQL 
Administrator for the administrative duties databases require when using 
MySQL 5.1. For MySQL 5.6 which is also available, MySQL Workbench serves 
the same purpose. (MySQL Navigator 5.6 can perform some duties such as 
create new databases and their tables.)

--Dan




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