Grzegorz Dostatni <dostatnig@yahoo.com> writes:
> Currently the datase is roughly 80 Megs. About half of
> the size is stored in pg_xlog directory. I managed to
> figure out that those files are transaction log files?
> How can I delete them safely?
You can NOT. Don't even think about going there.
What you can do, if you intend only low-update-volume usage,
is reduce checkpoint_segments to reduce the number of WAL files
the system wants to keep around.
regards, tom lane