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I have a folder of rasters that updates daily that I load into a PostgreSQL database using the raster2pgsql command line tool. I want to make this database outward facing so that I can connect to it. I like the idea of storing this database on AWS, but I don't know if it's possible to

  1. Add rasters directly to the AWS PostgreSQL database, or
  2. Sync my on-prem database with the database on AWS.

I really would like to avoid having to re-import the entire database daily as I only need to keep adding one raster per day. Is this possible (and how would I go about doing this?) or is there a better tool for doing this?

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  • Just to clarify, you're storing your rasters in the database versus the external storage option? – DPSSpatial Sep 2 '20 at 15:50
  • @DPSSpatial correct, I'm not currently aware of a way to directly load rasters into external storage – JWB Sep 2 '20 at 16:00
  • OK Thanks - would a SQL dump work on rasters as well? – DPSSpatial Sep 2 '20 at 16:04
  • Is it possible to only dump part of a database? – JWB Sep 2 '20 at 16:14
  • Yes - but will it work on a raster? stackoverflow.com/a/3682944/1704448 – DPSSpatial Sep 2 '20 at 16:20
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I would use pg_dump and specify a single table to export:

pg_dump --host localhost --port 5432 --username postgres --format plain --verbose --file "<abstract_file_path>" --table public.tablename dbname

From there, pg_restore can be used to upload that table to your AWS server.

More info here: https://stackoverflow.com/questions/3682866/how-to-create-a-backup-of-a-single-table-in-a-postgres-database/3682944#3682944

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