Thanks for your reply. I need to read all the run in order to move it to another tape. I suppose the only way to make it is reading the run tuple by tuple and writing them into the destination tape.
Regards, Manolo. ---------------------------------------- > To: [EMAIL PROTECTED] > CC: pgsql-hackers@postgresql.org > Subject: Re: [HACKERS] Avoid scanning on tape > Date: Mon, 11 Feb 2008 14:27:57 -0500 > From: [EMAIL PROTECTED] > > Manolo _ writes: >> I would like to store the "address on tape" of the first and the last tuple >> for the run I'm currently creating on a specific tape. >> I need it in order to access directly to those two tuples right after >> terminating the creation of that specific run. > > Why don't you just hold those two tuples in memory (ie, track the first > and latest-so-far tuples of each run)? > > regards, tom lane _________________________________________________________________ Express yourself instantly with MSN Messenger! Download today it's FREE! http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/ ---------------------------(end of broadcast)--------------------------- TIP 1: 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
