"make seed" results in SQL errors using Postgres 9.5 on macOS 10.11

[silellak]

Following the instructions in the readme, I've attempted to set up my environment to work on the project. However, after reaching the "make seed" stage, I receive multiple SQL errors. I've resolved some of them by correcting the SQL script, however, I am trying to determine if making these corrections is part of the exercise, or if the script needs to be updated for Postgres 9.5.