What does HackerNews think of Jailer?
Database Subsetting and Relational Data Browsing Tool.
Language:
Java
I also found DBeaver to be a huge improvement over tools I used earlier.
Recently I discovered Jailer which makes it very easy to navigate complex relational structures: https://github.com/Wisser/Jailer
Jailer[0] might be worth a look.
From the project's website[1]:
Jailer is a tool for database subsetting, schema and data browsing. It creates small slices from your database and lets you navigate through your database following the relationships.. Ideal for creating small samples of test data or for local problem analysis with relevant production data.
I suspect you're looking for https://github.com/Wisser/Jailer .
(I'd seen it before as well, couldn't remember the name immediately, and googled for `sql database subset relation export tool` to find it again.)