RE: [HACKERS] Re: ALTER TABLE DROP COLUMN
| От | Don Baccus |
|---|---|
| Тема | RE: [HACKERS] Re: ALTER TABLE DROP COLUMN |
| Дата | |
| Msg-id | 3.0.1.32.20000227213006.00fc1750@mail.pacifier.com обсуждение |
| Ответ на | RE: [HACKERS] Re: ALTER TABLE DROP COLUMN (The Hermit Hacker <scrappy@hub.org>) |
| Список | pgsql-hackers |
At 11:40 PM 2/27/00 -0400, The Hermit Hacker wrote: >Okay, just curious here, but ... what you are proposing *sounds* to me >like half-way to what started this thread. (*Please* correct me if I'm >wrong) ... > >Essentially, in your proposal, when you drop a column, all subsequent >tuples inserted/updated would have ... that one column missing? So, >instead of doing a massive sweep through the table and removing that >column, only do it when an insert/update happens? > >Basically, eliminate the requirement to re-write every tuples, only those >that have activity? Yes, this was one of the ideas that cropped up in previous discussion. - Don Baccus, Portland OR <dhogaza@pacifier.com> Nature photos, on-line guides, Pacific Northwest Rare Bird Alert Serviceand other goodies at http://donb.photo.net.
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