> I know your situations, your DB is not updated and inserted lots of
records in few minutes,
> mine is difference, I have a real time Stock Trading system, you know,
stock, its price
> is changed every minute or even every second , I need update and insert
delta change into DB,
> draw their trend graphics, suppose there are 3000 stocks in market,
there maybe 9000 records
> changed and inserted in one minutes, because PGSQL's storage manager
problem( it does not
> reuse deleted record space), in 4 hours trading period, my harddisk can
be full filled. because in
> the period, the table indeed gets very large, doing VACCUME is impossible
in realtime, it will lock
> out other clients too long time, my point of view is PGSQL is fit for
static or small changed database,
> not fit for lots of change in short time.
It's admitadly a problem so I don't think you need to convince everyone that
it's not the best way to handle things :-)
I hate to say it, but your options currently are to upgrade your storage
device or change databases... I think I'd fork out some cash for some new
hardware verses buying a commercial database or putting up with the missing
features of MySQL..
All my humble opinion of course, I wish you the best of luck.
-Mitch
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