Re: [postgis-users] Can't load aggregation query in qgis - row_number() over() as id

2014-03-28 Thread Rémi Cura
Hey, I'm not an expert, I would say the first thing would be to create a table with this query, then try to load the result into qgis. Another option is to encapsulate your group by into a sub querry, QGis might be confused by the number of rows. Try : SELECT * FROM ( SELECT row_number() over()

Re: [postgis-users] Can't load aggregation query in qgis - row_number() over() as id

2014-03-28 Thread Pietro Rossin
Thanks Remi of course I can materialize the query, but I don't want to create n new tables.. The incapsulation don't work I found this to work but with strage results SELECT row_number() over() as id, ST_CollectionHomogenize(st_collect(geom)) as geom, f1, f2 FROM schema.table group by 3,4

Re: [postgis-users] Can't load aggregation query in qgis - row_number() over() as id

2014-03-28 Thread Pietro Rossin
Sorry the second link is this https://dl.dropboxusercontent.com/u/15885512/strangequeryresult2.jpg 2014-03-28 11:14 GMT+01:00 Pietro Rossin pieri...@gmail.com: Thanks Remi of course I can materialize the query, but I don't want to create n new tables.. The incapsulation don't work I found

Re: [postgis-users] Can't load aggregation query in qgis - row_number() over() as id

2014-03-28 Thread Rémi Cura
Maybe you should check that the result of you querry is valid geometry (ST_Isvalid()). Another think is you could force your query output geometry type to multi of one type, for example : ST_Multi(ST_CollectionExtract(geom,2)) enforce that output type is multi line. Cheers, Rémi-C 2014-03-28

[postgis-users] (3DCityDB) Error with creation of database

2014-03-28 Thread 3DCityModeler
Hi there, To make a Raytracing Analysis of a 3DCity Area I will use the CityGML Format and therefore database format. I decided to choose PostgreSQL with PostGIS and 3DCityDB. But when creating a new database, after entering my password, the SRID and the SRSName the following error occurs:

Re: [postgis-users] (3DCityDB) Error with creation of database

2014-03-28 Thread Rémi Cura
SELECT postgis_full_version() error : no postgis Cheers, Rémi-C 2014-03-28 12:14 GMT+01:00 Morten Sickel mor...@sickel.net: spatial_ref_sys should have been created and populated when postgis was installed. Double check that that has been done correctly. Morten 3DCityModeler skrev:

Re: [postgis-users] Controlling PostGIS memory usage

2014-03-28 Thread Sandro Santilli
On Thu, Mar 27, 2014 at 11:25:05AM -0500, Dan Gast wrote: overcommit = 2 is definitely the best choice in this situation (i.e. give the daemon a chance to give up gracefully), but I still don't understand why memory balloons in the first place. ST_Buffer is known to possibly use a lot of

Re: [postgis-users] (3DCityDB) Error with creation of database

2014-03-28 Thread Rémi Cura
You don't need to do that, just 'CREATE EXTENSION postgis;' assuming you have a decently recent postgres and postgis Cheers, Rémi-C 2014-03-28 12:26 GMT+01:00 Robert Burgholzer rburg...@vt.edu: Loojs like postGIS did not get installed. Two tables are created and populated as part of the

Re: [postgis-users] postgis topology performance

2014-03-28 Thread Sandro Santilli
On Tue, Mar 25, 2014 at 03:13:13PM +0100, Rémi Cura wrote: Back after some other testing . (_from memory, suppressing checks in addpoints was about 2 sec instead of 3 sec. _About 21k unique points.) Here is a little comparison : (32k polylines,21k unique points, already 'topological'(

Re: [postgis-users] (3DCityDB) Error with creation of database

2014-03-28 Thread 3DCityModeler
It is working now. I needed to install it again. Thanks for your help guys! -- View this message in context: http://postgis.17.x6.nabble.com/3DCityDB-Error-with-creation-of-database-tp5005987p5005997.html Sent from the PostGIS - User mailing list archive at Nabble.com.

Re: [postgis-users] postgis topology performance

2014-03-28 Thread Rémi Cura
Surely ! I have to outline that grass export to postgis topology is still in beta mode. Also, I have a feeling the grass export to postgis topology uses the postgis topology functions, which kind of defeat the purpose (should bulk insert into tables). I sent a separate message, but GEOS is also

[postgis-users] more memory issues with raster2pgsql

2014-03-28 Thread georgew
Hi, I am trying to convert a raster from SAGA GIS to Postgis using raster2pgsql.The command line and its output is: C:\\Progra~1\\PostgreSQL\\9.3\\bin\\raster2pgsql.exe -F -d - I -C -M -s 2193 I:\cb09\cb09_3dem.sdat cb09_3 | psql -d NZTPU Processing 1/1: I:\cb09\cb09_3dem.sdat BEGIN NOTICE:

Re: [postgis-users] more memory issues with raster2pgsql

2014-03-28 Thread Bborie Park
You should tell raster2pgsql to tile the raster into smaller bite-size chucks, 256x256 is a safe value. It sounds like the raster is too big for what memory is available. -bborie On Fri, Mar 28, 2014 at 5:29 PM, georgew gws...@hotmail.com wrote: Hi, I am trying to convert a raster from SAGA

Re: [postgis-users] more memory issues with raster2pgsql

2014-03-28 Thread georgew
Thanks bborie, however from the error message I received the problem seems due to the need to convert the original raster to utf-8. But the original raster is in utf-8 already. If I follow your suggestion (and after this mystery conversion is done) will I be able to recombine the tiles to create

Re: [postgis-users] more memory issues with raster2pgsql

2014-03-28 Thread Bborie Park
How big is the original? Numbers of pixels width and height? Number of bands? Pixel types of the bands? I just want to know so that I can tell you if its even possible to store that raster as one database value. Utf-8 shouldn't be an issue as the raster data itself isn't in any character set

Re: [postgis-users] more memory issues with raster2pgsql

2014-03-28 Thread Bborie Park
Wait a minute. I wonder what your psql's client encoding is. This seems familiar... -bborie On Mar 28, 2014 5:30 PM, georgew gws...@hotmail.com wrote: Hi, I am trying to convert a raster from SAGA GIS to Postgis using raster2pgsql.The command line and its output is:

Re: [postgis-users] more memory issues with raster2pgsql

2014-03-28 Thread Bborie Park
Found the answer. http://postgis.net/docs/RT_FAQ.html#qa_raster_fails_encoding_conversion Got to love robe2 and her due diligence. -bborie On Mar 28, 2014 5:30 PM, georgew gws...@hotmail.com wrote: Hi, I am trying to convert a raster from SAGA GIS to Postgis using raster2pgsql.The command

Re: [postgis-users] more memory issues with raster2pgsql

2014-03-28 Thread georgew
thanks again bborie, my original raster is only 135MB in size, the generated sql is 270MB in size. As for the FAQ, I had looked at it, but could not work out how to find out how my client encoding is set and where. Also where is the postgresql load script for windows? -- View this message in

Re: [postgis-users] more memory issues with raster2pgsql

2014-03-28 Thread Bborie Park
Assuming you are running psql at the terminal/console, you should run set PGCLIENTENCODING=UTF8 before running psql. I can't say I can be of much more help as I don't have a windows box handy. -bborie On Mar 28, 2014 7:01 PM, georgew gws...@hotmail.com wrote: thanks again bborie, my original

Re: [postgis-users] more memory issues with raster2pgsql

2014-03-28 Thread georgew
Thanks bborie, this is what I did, but no improvement: Microsoft Windows [Version 6.3.9600] (c) 2013 Microsoft Corporation. All rights reserved. C:\WINDOWS\system32set PGCLIENTENCODING=UTF8 C:\WINDOWS\system32psql -U postgres -d NZTPU -f c:\cb09.sql BEGIN psql:c:/cb09.sql:2: NOTICE: table