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##PostgreSQL+PostGIS, installing on a Mac
###Step 1. Download the Postgres.app from https://postgresapp.com/
###Step 2. Follow the instruction on its website configure the port number(super easy, almost need to do nothing)
###Step 3. Download DataGrip from https://www.jetbrains.com/datagrip/ (Nice database IDE and free for students email)
###Step 4. Follow the notes on https://www.jetbrains.com/help/datagrip/connecting-to-a-database.html#connect-to-postgresql-database