Re: Two billion records ok? - Mailing list pgsql-general
From | Oleg Bartunov |
---|---|
Subject | Re: Two billion records ok? |
Date | |
Msg-id | Pine.GSO.4.63.0609050956100.16344@ra.sai.msu.su Whole thread Raw |
In response to | Re: Two billion records ok? (Nick Bower <nick@nickbower.com>) |
List | pgsql-general |
On Tue, 5 Sep 2006, Nick Bower wrote: > Thanks - but what do you call big? Several billions of stars. You can try our Cone Search service at http://vo.astronet.ru/cas/conesearch.php Oleg > > My application is satellite data btw so the reference could be useful. > > On Tue, 5 Sep 2006 01:40 pm, Oleg Bartunov wrote: >> Nick, >> >> if you need very fast spatial queries (spherical) you may use our >> Q3C module for POstgreSQL (q3c.sf.net). We use it for providing access >> to very big astronomical catalogs. >> >> >> Oleg >> >> On Tue, 5 Sep 2006, Nick Bower wrote: >>> We're considering using Postgresql for storing gridded metadata - each >>> point of our grids has a variety of metadata attached to it (including >>> lat/lon, measurements, etc) and would constitute a record in >>> Postgresql+Postgis. >>> >>> Size-wise, grids are about 4000x700 and are collected twice daily over >>> say 10 years. As mentioned, each record would have up to 50 metadata >>> attributes (columns) including geom, floats, varchars etc. >>> >>> So given 4000x700x2x365x10 > 2 billion, is this going to be a problem if >>> we will be wanting to query on datetimes, Postgis lat/lon, and >>> integer-based metadata flags? >>> >>> If however I'm forced to sub-sample the grid, what rule of thumb should I >>> be looking to be constrained by? >>> >>> Thanks for any pointers, Nick >>> >>> PS - Feel free to throw in any other ideas of grid-suitable databases :) >>> >>> ---------------------------(end of broadcast)--------------------------- >>> TIP 4: Have you searched our list archives? >>> >>> http://archives.postgresql.org >> >> Regards, >> Oleg >> _____________________________________________________________ >> Oleg Bartunov, Research Scientist, Head of AstroNet (www.astronet.ru), >> Sternberg Astronomical Institute, Moscow University, Russia >> Internet: oleg@sai.msu.su, http://www.sai.msu.su/~megera/ >> phone: +007(495)939-16-83, +007(495)939-23-83 > > ---------------------------(end of broadcast)--------------------------- > TIP 1: if posting/reading through Usenet, please send an appropriate > subscribe-nomail command to majordomo@postgresql.org so that your > message can get through to the mailing list cleanly > Regards, Oleg _____________________________________________________________ Oleg Bartunov, Research Scientist, Head of AstroNet (www.astronet.ru), Sternberg Astronomical Institute, Moscow University, Russia Internet: oleg@sai.msu.su, http://www.sai.msu.su/~megera/ phone: +007(495)939-16-83, +007(495)939-23-83
pgsql-general by date: