Is it the same dataset as you had in 8.1 and which version of PostGIS are you running? My only guess why it would have worked then (if same dataset) and not now is maybe a difference in the way collect is working in the newer version. Well if you are collecting together a bunch of polygons or linestrings then collect will return a multipolygon or multilinestring. If you are collecting multipolygons or multilinestrings then I think it usually returns a geometrycollection. If you are sure that each of your records is just a single polygon or single linestring inside a multi-encasing, then you can probably do something like this collect(geometryn(the_geom,1)) to verify that you can get away with that, check to see if you have any that have more than one linestring or polygon with something like SELECT * from sometable where numgeometries(the_geom) > 1 Hope that helps, Regina
________________________________ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John Cole Sent: Tuesday, July 17, 2007 6:16 PM To: 'PostGIS Users Discussion' Subject: RE: [postgis-users] You've found a bug! Geomunion works but is painfully slow (minutes rather than seconds). Any suggestions on how to get a collect (or something similar) to work? Thanks, John ________________________________ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Obe, Regina Sent: Tuesday, July 17, 2007 2:42 PM To: PostGIS Users Discussion Subject: RE: [postgis-users] You've found a bug! That's strange. I never thought shape files ever supported geometry collections. Are you sure that last time you ran it maybe your collect returned all multipoint or multipolygons and now with a newer dataset your have a mixed back resulting in one or more records being a geometrycollection? What happens when you replace collect with geomunion? thanks, Regina ________________________________ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John Cole Sent: Tuesday, July 17, 2007 3:03 PM To: 'PostGIS Users Discussion' Subject: [postgis-users] You've found a bug! Running pgsql2shp with the following query on a tiger lkA table, I get a notice that I've found a bug :-) This query worked with 8.1. "select coalesce(fedirp || ' ', '') || fename || coalesce(' ' || fetype, '') || coalesce(' ' || fedirs, '') as name, case when substring(fename, '(Old)') is not null then null else substring(fename, '(?:I[[:space:]]?-?|Highway|Hwy|County[[:space:]]Road|Co[[:space:]]Rd|Co unty|State[[:space:]]Route|Parish|Parish[[:space:]]Road|S[[:space:]]R|C[ [:space:]]R|Sr|Co|Carretera|St[[:space:]]Rt|C Rd|Co R|County[[:space:]]Route|Cr-?)+[[:space:]]?([[:digit:]]+)') end as hwy_num, cfcc, transform(simplify(segmentize(transform(collect(the_geom), 1000000), 1), 3), 4326) as the_geom from TGR01001 where substring(cfcc, '(A[456789])+') is not null group by cfcc, hwy_num, fedirp, fename, fetype, fedirs order by cfcc desc" Preparing table for user query... Done. Initializing... type 'GEOMETRYCOLLECTION' is not Supported at this time. The DBF file will be created but not the shx or shp files. You've found a bug! (pgsql2shp.c:2869) Thanks, John This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the sender. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the sender. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. ----------------------------------------- The substance of this message, including any attachments, may be confidential, legally privileged and/or exempt from disclosure pursuant to Massachusetts law. It is intended solely for the addressee. If you received this in error, please contact the sender and delete the material from any computer.
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