Dmitry Vorotilin route

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It's now here, in The Programmer's Compendium. The content is the same as before, but being part of the compendium means that it's actively maintained.

TL;DR

Install Postgres 9.6, and then:

sudo pg_dropcluster 9.6 main --stop
sudo pg_upgradecluster 9.5 main
sudo pg_dropcluster 9.5 main

Go (Golang) GOOS and GOARCH

All of the following information is based on go version go1.17.1 darwin/amd64.

GOOS Values

GOOS	Out of the Box
`aix`	✅
`android`	✅

Arel Cheatsheet on Steroids

A (more) complete cheatsheet for Arel, including NamedFunction functions, raw SQL and window functions.

Tables

posts = Arel::Table.new(:posts)
posts = Post.arel_table # ActiveRecord

	# Detect underlying system.
	ifeq ($(OS),Windows_NT)
	detected_OS := Windows
	else
	detected_OS := $(shell sh -c 'uname -s 2>/dev/null \|\| echo not')
	endif

	export detected_OS

	# Set default C compiler.