Todd, Hmm your use of the term schema is a bit confusing since schemas exist in PostgreSQL and most ANSI compliant relational dbs. I assume you mean table structures are different. There are a couple of ways of doing this 1) Load the tables into a scratch schema (in postgresql/ANSI sql lingo ) - just some dummy schema you create and then do a table to table insert INSERT INTO sometable (.....) SELECT ... FROM scratch.imported_table I tend to do this since I usually have a lot of extensive cleaning to do like validating the geometries, extruding multis into singles and so forth OR 2) Use OGR2OGR. OGR2OGR will allow you to write a select statement and as long as you alias the fields to the ones you want to insert into - that may work. (I usually do this when piping data from MySQL, but I think it should work for shape as well, though you probably won't have a CAST option). OGR2OGR tends to be impoverished with data types so some care needs to be taken. Hope that helps, Regina
_____ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Todd Fagin Sent: Friday, October 17, 2008 5:39 PM To: [email protected] Subject: [postgis-users] Loading multiple shapefiles with different schemasinto the same PostGIS layer Greetings PostGIS-ers, I have another newbie question for you. I have multiple shapefiles I want to load into PostGIS as a single layer. However, these shapefiles have different schemas. I know that shp2pgsql has the -a option for appending However, the tables must have the same schema, right? I have come up with a convoluted way to do this and it works. However, I have feeling that someone much smarter than I has already found a more elegant solution to this. Here is what I have done: 1. Convert each shapefile to SQL using shp2pgsql; this is especially important since it creates the the_geom field 2. Run the SQL script for the shapefile that has the schema I will use 3. Edit the remaining .sql files generated for each shapefile by shp2pgsql, removing everything but the INSERT statements and editing the fields to map to the appropriate fields in the existing table (this is the part that could be cumbersome, hence looking for a more elegant solution). 4. Run the edited SQL scripts for each of the remaining shapefiles. Thanks, Todd Todd Fagin Coordinate Solutions, Inc. 2804 NW 18th St. Oklahoma City, OK 73107 405.740.4324 (voice) 904.471.5548 (fax) www.coordinatesolutions.com
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