Dunno if this belongs here, but I am a current DH customer - I need
for a script I am using. Does DH offer any of these and would I be able to manually compile any?
DH does not have PostgreSQL.
You won't be able to install your own PostgreSQL...the other stuff, probably..depending on your expertise, but the postgreSQL is likely to be a dealbreaker for that script on DH.
Damn, the only thing that uses is PSQL - it doesn't support any other version of sql :\