Re: Is it possible to have a "fast-write" Index? - Mailing list pgsql-hackers

From Jim Nasby
Subject Re: Is it possible to have a "fast-write" Index?
Date
Msg-id 5571E04F.40303@BlueTreble.com
Whole thread Raw
In response to Is it possible to have a "fast-write" Index?  (deavid <deavidsedice@gmail.com>)
List pgsql-hackers
On 6/5/15 11:07 AM, deavid wrote:
> Did I miss something?

These are interesting ideas but the problem here is the problem is far 
to hypothetical. You're trying to defer index maintenance cost in a case 
where if there's any real problem the index pages are already in memory. 
So if it's too slow it's not because of IO... but then why is it too slow?

If you have significantly more than 10M rows then IO would be much more 
likely to be a problem, but at that point you should probably just be 
partitioning anyway.

If you want to attract attention here I think you'll need to come up 
with some concrete scenarios and provide data on where all the 
performance hit actually is.
-- 
Jim Nasby, Data Architect, Blue Treble Consulting, Austin TX
Data in Trouble? Get it in Treble! http://BlueTreble.com



pgsql-hackers by date:

Previous
From: Peter Geoghegan
Date:
Subject: Re: Further issues with jsonb semantics, documentation
Next
From: Jim Nasby
Date:
Subject: Re: RFC: Remove contrib entirely