Re: [postgis-users] Geoprocessing & BigData

. > > > Lars > > > ____________ > Fra: postgis-users [postgis-users-boun...@lists.osgeo.org] på vegne av > Ravi Pavuluri [ravith...@ymail.com] > Sendt: 27. januar 2016 21:31 > Til: PostGIS Users Discussion > Emne: Re: [postgis-users] Geoprocessing &

Re: [postgis-users] Geoprocessing & BigData

ssion Emne: Re: [postgis-users] Geoprocessing & BigData Hi David, I are dealing with census blocks/census block groups spanning a few million records. Thanks, Ravi. On Monday, January 25, 2016 10:18 AM, David Haynes <hayne...@gmail.com> wrote: We have done some work, implement

Re: [postgis-users] Geoprocessing & BigData

Hi David, I are dealing with census blocks/census block groups spanning a few million records. Thanks,Ravi. On Monday, January 25, 2016 10:18 AM, David Haynes wrote: We have done some work, implementing parallel spatial queries using a spatial declustering

Re: [postgis-users] Geoprocessing & BigData

We have done some work, implementing parallel spatial queries using a spatial declustering algorithm. How large are your datasets? On Mon, Jan 18, 2016 at 1:51 PM, Rémi Cura wrote: > Hey, > if you have one beefy server you can parallelize throwing several queries > working

Re: [postgis-users] Geoprocessing & BigData

Felix,Thanks for the tip and  I am kind of doing the same way. An intersect or union would help me test and compare my result with other GIS software. Also, thanks for the mapbutcher link on union. I will look into it. Steve, Thanks for the tiles approach, I am going to to give it a try.

Re: [postgis-users] Geoprocessing & BigData

Uhr Von: "Ravi Pavuluri" <ravith...@ymail.com> An: vincent...@oslandia.com, "PostGIS Users Discussion" <postgis-users@lists.osgeo.org>, "Rémi Cura" <remi.c...@gmail.com> Betreff: Re: [postgis-users] Geoprocessing & BigData Vincent and Remi,

Re: [postgis-users] Geoprocessing & BigData

*Von:* "Ravi Pavuluri" <ravith...@ymail.com> *An:* vincent...@oslandia.com, "PostGIS Users Discussion" <postgis-users@lists.osgeo.org>, "Rémi Cura" <remi.c...@gmail.com> *Betreff:* Re: [postgis-users] Geoprocessing & BigData Vincent and Remi,

Re: [postgis-users] Geoprocessing & BigData

> @Vincent : For ArcGIS Union, please see here. > http://resources.esri.com/help/9.3/arcgisengine/java/gp_toolref/analysis_ > tools/union_analysis_.htm ArcGIS Union resume to removing overlaps from the union of two tables. Look at the ST_DifferenceAgg() example in the PostGIS Addons:

[postgis-users] Geoprocessing & BigData

Hi All, I am checking if there is a way to process quickly large datasets such as census blocks in PostGIS and also by leveraging big data platform. I have few questions in this regard. 1) When I try intersect for sample census blocks with another polygon layer, PostGIS 2.2(on Postgres 9.4)

Re: [postgis-users] Geoprocessing & BigData

Hi Ravi, On 18/01/2016 19:14, Ravi Pavuluri wrote: > Hi All, > > I am checking if there is a way to process quickly large datasets such > as census blocks in PostGIS and also by leveraging big data platform. I > have few questions in this regard. > > 1) When I try intersect for sample census

Re: [postgis-users] Geoprocessing & BigData

Hey, if you have one beefy server you can parallelize throwing several queries working on sub set of your data. (aka parallel processing trough data partition). One conceptual example : you want to process the world, you create 20 workers, a list of countries, and then make the worker process the

Re: [postgis-users] Geoprocessing & BigData

ere. http://resources.esri.com/help/9.3/arcgisengine/java/gp_toolref/analysis_tools/union_analysis_.htm Any inputs are appreciated. Thanks again, Ravi. On Mon, 1/18/16, Rémi Cura <remi.c...@gmail.com> wrote: Subject: Re: [postgis-users] Geoproc