Обсуждение: Dropping Columns
How nasty would dropping columns be?
I've just now started going through the source and am trying to find where it would fit in... if it could be done without a nightmare.
Any pointers?
-
- Thomas Swan
- Graduate Student - Computer Science
- The University of Mississippi
-
- "People can be categorized into two fundamental
- groups, those that divide people into two groups
- and those that don't."
On Mon, Aug 21, 2000 at 06:32:13PM -0500, Thomas Swan wrote: > > How nasty would dropping columns be? > > I've just now started going through the source and am trying to find where > it would fit in... if it could be done without a nightmare. > > Any pointers? Long discussion in February, and again in June in HACKERS. (Hmm, the new User's Lounge seems to have gone in, but now we've no links to mail archives. Ah, here's a bookmark I can use to get in.) Here's one pointer: http://www.postgresql.org/mhonarc/pgsql-hackers/2000-06/msg00324.html The search feature on the front page will search the mailing lists for you, it's just a bit slow. Oh, look in <your pgsql source tree>/doc/TODO.detail/drop Looks like the thread from HACKERS is in there. Ross -- Ross J. Reedstrom, Ph.D., <reedstrm@rice.edu> NSBRI Research Scientist/Programmer Computer and Information Technology Institute Rice University, 6100 S. Main St., Houston, TX 77005
On Tue, 22 Aug 2000, Ross J. Reedstrom wrote: > On Mon, Aug 21, 2000 at 06:32:13PM -0500, Thomas Swan wrote: > > > > How nasty would dropping columns be? > > > > I've just now started going through the source and am trying to find where > > it would fit in... if it could be done without a nightmare. > > > > Any pointers? > > Long discussion in February, and again in June in HACKERS. (Hmm, the > new User's Lounge seems to have gone in, but now we've no links to > mail archives. Ah, here's a bookmark I can use to get in.) > > Here's one pointer: > > http://www.postgresql.org/mhonarc/pgsql-hackers/2000-06/msg00324.html For now you can get there from the general info page in the user's lounge. I'm working up the search page now. > > The search feature on the front page will search the mailing lists for > you, it's just a bit slow. > > Oh, look in <your pgsql source tree>/doc/TODO.detail/drop > > Looks like the thread from HACKERS is in there. > > Ross > -- ========================================================================== Vince Vielhaber -- KA8CSH email: vev@michvhf.com http://www.pop4.net128K ISDN from $22.00/mo - 56K Dialup from $16.00/moat Pop4 Networking Online Campground Directory http://www.camping-usa.com Online Giftshop Superstore http://www.cloudninegifts.com ==========================================================================
-----Original Message----- From: Thomas Swan > How nasty would dropping columns be? I have an solution which uses 2(logical/physical) attribute numbers. However I'm not satisfied with it. It isn't so clean as I expected. It breaks backward compatibility ... etc. Regards. Hiroshi Inoue Inoue@tpf.co.jp