Albe Laurenz <laurenz.a...@wien.gv.at> writes:
> Adir Shaban wrote:
>> Is there anyway to limit a database size?
>> For example, I need to create a database for user X and I don't want it to
>> use more than 5 GB.
> You can create a tablespace on a device with limited size.
> Then you can create the database on that tablespace.
Note the reference to tablespace. It's unwise to just put the whole
cluster on a tiny device (or equivalently, attempt to solve this with
OS-level disk quotas applied to the whole installation). The reason is
that PG gets very unhappy if it runs out of WAL space. Hitting a limit
on table size per se behaves a bit more sanely, though even there you
can get into trouble --- for instance, in some situations VACUUM will
try to allocate additional disk space, making recovery harder.
regards, tom lane
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