Sander Pilon wrote:

>Lose (some of) the keys!? Keys, especially on small rows (where a key
>introduces a lot of overhead), can take a significant percentage of
>space. 
>
>Turn on key compression? (dunno if innodb supports that)
>
>Other then that I wouldn't know. But live with the fact that keys
>introduce overhead. It will be like that on any database system.
>
>>-----Original Message-----
>>From: Xavier Leoncini [mailto:[EMAIL PROTECTED]] 
>>Sent: 30 July 2001 04:34
>>To: [EMAIL PROTECTED]
>>Subject: Innodb table size
>>
>>
>>Hello,
>>I was wondering if someone could help me;
>>When I load about 6Gb of raw data into a innodb table
>>the size used by the table is about 14G.
>>I noticed in preleminary tests that the sized used depends a 
>>lot on the 
>>number of rows
>>in the case described above the data has about 180 millions rows, 4 
>>columns and three keys
>>on the first three columns.
>>Does anyone know how to get a better ratio,  something closer 
>>to 6-9Gb use. Thanks in advance. Xavier
>>
>>
>>
>>---------------------------------------------------------------------
>>Before posting, please check:
>>   http://www.mysql.com/manual.php   (the manual)
>>   http://lists.mysql.com/           (the list archive)
>>
>>To request this thread, e-mail <[EMAIL PROTECTED]>
>>To unsubscribe, e-mail 
>><[EMAIL PROTECTED]>
>>Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
>>
>>
>
>
>.
>
To be more precise,
I have a primary key defined on the first three columns, and I kind of 
do not have much choice
on that. I am surprised by the overhead as innodb has clustered indexing 
defined on the primary key.
A typical row is about 35 bytes.



---------------------------------------------------------------------
Before posting, please check:
   http://www.mysql.com/manual.php   (the manual)
   http://lists.mysql.com/           (the list archive)

To request this thread, e-mail <[EMAIL PROTECTED]>
To unsubscribe, e-mail <[EMAIL PROTECTED]>
Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php

Reply via email to