ulfbert-inc

Alice's Adventures in Wonderland

                ALICE'S ADVENTURES IN WONDERLAND

                          Lewis Carroll

               THE MILLENNIUM FULCRUM EDITION 3.0

ulfbert-inc

#!/bin/bash
tmp=$(mktemp -d)
pushd "$tmp"

iso=/Users/lloeki/Downloads/archlinux-2015.08.01-dual.iso
echo "fixing disk"
dd if=/dev/zero bs=2k count=1 of=tmp.iso
dd if=$iso bs=2k skip=1 >> tmp.iso

echo "mounting disk"

ulfbert-inc

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