On Sun, 26 Oct 2003, Christopher Kings-Lynne wrote: > > to find the row and then to perform the substr. An open command can > > be optimized a lot more, for example to cache entries that have been > > opened so that it's fast to read the next 1kb or whatever you want. > > It's an index scan, so it's pretty fast...
And if you read a lot it will be cached, but it's still a little extra overhead and the write case it does not solve at all. -- /Dennis ---------------------------(end of broadcast)--------------------------- TIP 3: if posting/reading through Usenet, please send an appropriate subscribe-nomail command to [EMAIL PROTECTED] so that your message can get through to the mailing list cleanly