I have a Postgres database dump in a .7z archive.

I can extract it and import it with:

7za e dump.7z dump
psql -h localhost db_name < dump

but I'm just running out of disk space.

What is the correct way to pipe the 7za output to psql, so that I don't have a large temporary file taking up space?


If it's similar to importing from a .gz file, then you're looking to pipe the output from 7za into psql with something like this:

7za e dump.7z | psql -h localhost db_name

Use the -so option for 7za.

7za e -so dump.7z | psql -h localhost -U admin db_name

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