RC-Kanashii

Merged from https://github.com/joelparkerhenderson/git_commit_message and https://chris.beams.io/posts/git-commit/

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	This note explains how to build Postgres from source and setup to debug it using LLDB on a Mac. I used this technique to research this article:
	http://patshaughnessy.net/2014/10/13/following-a-select-statement-through-postgres-internals

	1. Shut down existing postgres if necessary - you don’t want to mess up your existing DB or work :)

	$ ps aux \| grep postgres
	pat 456 0.0 0.0 2503812 828 ?? Ss Sun10AM 0:11.59 postgres: stats collector process
	pat 455 0.0 0.0 2649692 2536 ?? Ss Sun10AM 0:05.00 postgres: autovacuum launcher process
	pat 454 0.0 0.0 2640476 304 ?? Ss Sun10AM 0:00.74 postgres: wal writer process
	pat 453 0.0 0.0 2640476 336 ?? Ss Sun10AM 0:00.76 postgres: writer process