Mark Rotteveel wrote 12.10.2021 10:55:
It allows you to restore tablespace contents to new places.
If the option is not specified gbak will use old locations for every tablespace.
I still think this should be an explicit option as well, otherwise surprising
things - for the user - can happen when restoring a backup of a database you
didn't know had tablespaces.
"Surprising" is a weak word. Imagine a backup of a database with absolute
file paths restored to the same host as original database. People often do that
to check backup's consistency.
What is worse, imagine a malicious backup with forged tablespace names like
/etc/shadow.
--
WBR, SD.
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