Re: [PATCH] Space reservation v02
От | Simon Riggs |
---|---|
Тема | Re: [PATCH] Space reservation v02 |
Дата | |
Msg-id | 1233393699.4500.6.camel@ebony.2ndQuadrant обсуждение исходный текст |
Ответ на | [PATCH] Space reservation v02 (Zdenek Kotala <Zdenek.Kotala@Sun.COM>) |
Ответы |
Re: [PATCH] Space reservation v02
Re: [PATCH] Space reservation v02 |
Список | pgsql-hackers |
On Tue, 2009-01-27 at 13:06 +0100, Zdenek Kotala wrote: > Space reservation MUST TO be implemented if we > want to have 8.4->8.5 upgrade. Why not just add a few dummy columns onto each catalog table? If we need space to expand a row we can just drop one of the dummy columns from the new catalog definition. That's an old DBA trick to avoid having to rewrite a table when you want to add a column. Seems much simpler to add columns than write special code, especially when we might find the new code has bugs and hasn't done what we thought it might. -- Simon Riggs www.2ndQuadrant.comPostgreSQL Training, Services and Support
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