Question

Hi, I have a database with   100 GB size, I never have done a vacuumdb to
it, analizyng,  there is a table witn almost 25 GB, I have to run a Vaccum
to clean it.. This is a longer operation.

But somebody said me that if I make a backup(pg_dump), drop the database,
create db, an then restore again, tha database is cleaned(recover disk
space) and reindexed, is that true?
If is true, how long is this?

Thnaks for your help.

Fabio.




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