Is there a way of finding out which version I am currently using?
Also 8.3 is 18gb on my computer but the huge files are located
8.3/data/base/25811 are this files needed or could/can I delete them?
Is there a way of finding out which version I am currently using?
Also 8.3 is 18gb on my computer but the huge files are located
8.3/data/base/25811 are this files needed or could/can I delete them?
Don't touch this folder - its the complete database. If you modify any file in this folder structure you will loose all your data.
To get the exact version you need to run a sql statement - see this for example: Re: Where to Get Version of PostgreSQL Installation