We discussed how to install and create a simple class in the first part of this series where we ran a SELECT and returned one row with one column with a formatted text. Now its time to expand and see how to return multiple tuples. A little disclaimer here; Im not going to comment much [&]

https://www.percona.com/blog/postgresql-pl-java-a-how-to-part-2-how-to-manipulate-and-return-tuples/