Victor, Thanks for your reply. Actually, i cannot find such an option and want to see if i have missed something. Referring to Innodb transaction log, I do some more searching and would like to confirm what i found from the web (this information is not available in MySQL documentation) . Transaction Log file is the redo log and can be overwritten by the a single transaction . Undo Log is stored in the innodb tablespace and used for rollback of uncommitted transaction. According to the quota below (from "ACID Transaction in MySQL with InnoDB" by Arjen Lentz) Writing uncommitted data to the tablespace (with checkpoints) ensures that transaction size is not limited by memory or log file size, but simply by the size of the tablespace
Therefore, I do not need to increate the log file size even though a single Load Data statement insert millions rows. For those innodb expert, please inform me whether my conculsion is right or wrong. Thanks & Regards, Michael Victor Pendleton <[EMAIL PROTECTED]> wrote: I do not believe this is currently an option in the `load data infile` syntax. One option would be to read the file programmatically and issue the commits after `x` number of inserts. -----Original Message----- From: Michael Lee To: [EMAIL PROTECTED] Sent: 6/28/04 1:21 AM Subject: INNODB transaction log size Hi, I would like to migrate my DB from Sybase ASE to MySQL INNODB table. Data has been extracted and stored as a file. I want to use the command Load Data Infile to insert the data to MySQL. However, some table contains millions of rows. Can i control the batch size of the loading (e.g. commit the transaction after 50000 rows inserted)? If no, should i define a very large transaction log to handle the huge transaction? (currently, it is 5M) Any suggestion is welcomed. TIA Michael ???????????????... ?????????? http://mobile.yahoo.com.hk/ -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED] [EMAIL PROTECTED] 全港最大手機下載中心 http://mobile.yahoo.com.hk/
