Re: RPMS for 7.3 beta.
От | Tom Lane |
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Тема | Re: RPMS for 7.3 beta. |
Дата | |
Msg-id | 14030.1032321092@sss.pgh.pa.us обсуждение исходный текст |
Ответ на | Re: RPMS for 7.3 beta. (Lamar Owen <lamar.owen@wgcr.org>) |
Ответы |
Re: RPMS for 7.3 beta.
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Список | pgsql-hackers |
Lamar Owen <lamar.owen@wgcr.org> writes: >> How does pg_upgrade work? > [ pretty good description ] You missed a key point, which is that pg_upgrade does not even try to cope with version-to-version system catalog changes. It assumes it can use pg_dump to dump and reload the database schema. So there is no hope, ever, that it will be more reliable than pg_dump. All pg_upgrade tries to do is short-circuit the moving of the bulk data. The bald fact of the matter is that we are still a good ways away from the point where we might be willing to freeze the system catalogs. PG is evolving and improving by a substantial amount with every release, and the implication of that is that there *will* be some upgrade pain. If you don't like that ... well ... you're welcome to keep using PG 6.1 ... but I haven't got a better answer. regards, tom lane
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