Re: ALTER TABLE
От | Rod Taylor |
---|---|
Тема | Re: ALTER TABLE |
Дата | |
Msg-id | 1062162671.80333.231.camel@jester обсуждение исходный текст |
Ответ на | Re: ALTER TABLE (Tom Lane <tgl@sss.pgh.pa.us>) |
Список | pgsql-hackers |
On Thu, 2003-08-28 at 23:22, Tom Lane wrote: > Rod Taylor <rbt@rbt.ca> writes: > > I've been fiddling away on ALTER TABLE and have a few questions about a > > possible datatype change. Just alter portions. > > > I presume I'll need to do a table rewrite. What is the best way to > > change a single datum? heap_modify() takes a single relation type where > > I will need to deal with different types. Simply build a new tuple with > > old datums (easy enough)? Do we care about OIDs being renumbered? > > Have you consulted the archives? ISTM we discussed these issues to > death a year or two back. I thought I had. Google doesn't give anything overly useful in a group search for 'alter table modify' or 'alter table change type' Found a nice long thread on dropping a column though. The discussion about SET / DROP NOT NULL had a little bit on modify. If you could point me in the right direction it would be appreciated.
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