me talking out loud: "getting" joins
a good explaination of SQL joins
assert_efficient_sql - O'Reilly Ruby
rails plugin that can detect inefficient queries in test cases
ruckusing - Google Code
php based database migration suite
DeadWisdom / Migratory / wiki / Home — bitbucket.org
another db migration tool for django
Postgres Window Functions
Models for hierarchical data
The Codex » Do Not Pass This Way Again
Postgres Guide
Rob Conery | Inserting And Using A New Record In Postgres
Cockroach DB