meseven

drop trigger if exists unique_username on users;
drop function if exists unique_username();
drop table if exists users;

create table users (
  id serial primary key,
  username varchar unique,
  name varchar not null,
  surname varchar not null,
  check (username is not null and username != '')

aozisik

# This will retrieve v8 7.4.288.25 when installled
wget https://raw.githubusercontent.com/Homebrew/homebrew-core/0a6171330678879285f2c566db9349da421d6f62/Formula/v8.rb

brew install v8.rb
brew list v8

# You will see this:
# /usr/local/Cellar/v8/7.4.288.25/bin/d8
# /usr/local/Cellar/v8/7.4.288.25/libexec/include/ (21 files)
# /usr/local/Cellar/v8/7.4.288.25/libexec/ (7 files)