Instead of using ETL Tools, which consume tons of memory on their own system, you will learn how to do ETL jobs directly in and with a database: PostgreSQL.
PostgreSQL Management of External Data (SQL/MED) is also known as Foreign Data Wrapper (FDW). With FDW, there is nearly no limit of external data, that you could use directly inside a PostgreSQL database.
This talk will show you how to use them with examples accessing several data sources.
Longtime back-end and database developer with a focus on PostgreSQL. With a passion for databases, I came across PostgreSQL in 1998. I've been using it since. I am a freelancing database and back-end developer, mostly involved in PostgreSQL projects. I am a more or less regular speaker at Open Source and PostgreSQL conferences.