Re: PG_RESTORE and database size
От | Tom Lane |
---|---|
Тема | Re: PG_RESTORE and database size |
Дата | |
Msg-id | 2453.1138375954@sss.pgh.pa.us обсуждение исходный текст |
Ответ на | PG_RESTORE and database size ("Marcus Couto" <marcus_couto@hotmail.com>) |
Список | pgsql-general |
"Marcus Couto" <marcus_couto@hotmail.com> writes: > Here's a basic question. On working with backing up and restoring it = > seems like if I keep on doing it in a row, the backup file size keeps on = > increasing in size. It almost doubles in size for every backup/restore. = > I want the restore the backup to overwrite the database and not add to = > it. Is there another procedure I'm missing or a parameter I'm not using = > right with pg_restore and pg_dump? Why are you restoring into a live database? It sounds to me like you are probably ignoring a lot of object-already-exists errors from pg_restore and then having it add on duplicate data to the tables. Usually people drop the database and recreate it empty before running pg_restore. There is a switch named --clean or something like that to make pg_restore emit DROP commands before recreating objects, but hardly anyone uses it because it's usually slower than dropping the whole database at once. regards, tom lane
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