Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Ruby loves Postgres
Search
Yannick Schutz
June 24, 2014
Programming
1
150
Ruby loves Postgres
Rulu 2014 talk
Yannick Schutz
June 24, 2014
Tweet
Share
More Decks by Yannick Schutz
See All by Yannick Schutz
All those bots are gonna steal your job
ys
1
1.1k
Postgresql + Ruby = :heart:
ys
4
320
RubyMotion - Apéro Ruby Paris 05-10-2012
ys
1
3k
Other Decks in Programming
See All in Programming
チームのテスト力を総合的に鍛えて品質、スピード、レジリエンスを共立させる/Testing approach that improves quality, speed, and resilience
goyoki
5
1.1k
初学者でも今すぐできる、Claude Codeの生産性を10倍上げるTips
s4yuba
16
13k
AIともっと楽するE2Eテスト
myohei
8
3k
20250704_教育事業におけるアジャイルなデータ基盤構築
hanon52_
5
1.1k
What's new in AppKit on macOS 26
1024jp
0
150
TypeScriptでDXを上げろ! Hono編
yusukebe
3
770
MDN Web Docs に日本語翻訳でコントリビュートしたくなる
ohmori_yusuke
1
130
Claude Code + Container Use と Cursor で作る ローカル並列開発環境のススメ / ccc local dev
kaelaela
12
7k
React は次の10年を生き残れるか:3つのトレンドから考える
oukayuka
7
1.9k
効率的な開発手段として VRTを活用する
ishkawa
0
160
AI時代の『改訂新版 良いコード/悪いコードで学ぶ設計入門』 / ai-good-code-bad-code
minodriven
23
9.6k
Google Agent Development Kit でLINE Botを作ってみた
ymd65536
2
260
Featured
See All Featured
The Myth of the Modular Monolith - Day 2 Keynote - Rails World 2024
eileencodes
26
2.9k
The MySQL Ecosystem @ GitHub 2015
samlambert
251
13k
Building Applications with DynamoDB
mza
95
6.5k
YesSQL, Process and Tooling at Scale
rocio
173
14k
Dealing with People You Can't Stand - Big Design 2015
cassininazir
367
26k
Mobile First: as difficult as doing things right
swwweet
223
9.7k
CoffeeScript is Beautiful & I Never Want to Write Plain JavaScript Again
sstephenson
161
15k
GraphQLの誤解/rethinking-graphql
sonatard
71
11k
A designer walks into a library…
pauljervisheath
207
24k
Unsuck your backbone
ammeep
671
58k
Typedesign – Prime Four
hannesfritz
42
2.7k
Designing for humans not robots
tammielis
253
25k
Transcript
Hello, I’m Yannick
None
None
None
RUBY ❤️ POSTGRESQL RUBY ❤️ POSTGRESQL
PostgreSQL is more than a datastore
PostgreSQL is a relational database
PostgreSQL is webscale
PostgreSQL is webscale
PostgreSQL is open-source
PostgreSQL has a great community
PostgreSQL is mature!
! ! ! PostgreSQL will do your coffee
⚡️POWER⚡️
• MODELS • QUERIES • SPEED What?
MODELS
have not integer primary keys. YOU CAN
UUID
run 'CREATE EXTENSION “uuid-ossp"' ! create_table(:users), id: :uuid do t.string
:name end ! User.create #=> #<User @values={:id=>”10e43f5f-713f-4efa- b225-11800777a322"}>
add “columns” without migrations. YOU CAN
HSTORE
add_column :users, :settings, :hstore ! class User < ActiveRecord::Base #
This exposes accessors. user.wants_push = false store_accessor :settings, :wants_push, :wants_mails, :auto_save store_accessor :avatars, :large, :medium, :small end
cache API results. YOU CAN
JSON
! add_column(:twitter_auth, :json_payload, :json) ! user.twitter_auth = Omniauth.fetch_auth(:twitter) ! user.twitter_auth[:nickname]
= ‘yann_ck’ user.twitter_auth[:nickname] #=> ‘yann_ck’
• UUID • HSTORE • JSON Recap
! ! QUERIES
have understandable hard queries. YOU CAN
AKA WITH clause CTE
def bad_users_with_karma User.find_by_sql(query, @karma_limit) end ! def query <<-SQL WITH
bad_users AS (SELECT * FROM users WHERE bad = true) SELECT * FROM bad_users WHERE karma > ? SQL end
have slow queries to fast read only models. YOU CAN
VIEWS MATERIALIZED
PSQL> CREATE MATERIALIZED VIEW bad_users AS SELECT * FROM users
WHERE bad = false; ! class BadUser < User def readonly? true end end
search your models. YOU CAN
SEARCH FULL TEXT
# Using textacular ! User.basic_search(“yannick”) User.basic_search(name: “yan:*”) User.fuzzy_search(“yannick”) # uses
trigrams ! create index on users using gin(to_tsvector('english', name));
• CTE • Materialized Views • Full text search Recap
! ! SPEED
index more than one column. YOU CAN
INDEXES MULTICOLUMN
SELECT * FROM posts WHERE !banned AND poster_id = 6;
! SELECT * FROM posts WHERE banned; ! CREATE INDEX ON posts(banned, poster_id);
index only a part of your rows. YOU CAN
INDEXES PARTIAL
SELECT * FROM posts WHERE !banned AND poster_id = 6;
! CREATE INDEX ON poster_id WHERE !banned;
have transformations in you indexes. YOU CAN
INDEXES FUNCTIONAL
SELECT * FROM users WHERE lower(email) = ‘
[email protected]
’; ! CREATE
INDEX ON users(lower(email));
• Partial • Multicolumn • Functional Recap
! TOOLS MOAR
CONTENT SHARE
PUT IMAGE OF DATACLIPS AND WILL
STATS GET QUERIES
SELECT (total_time / 1000 / 60) as total_minutes, (total_time/calls) as
average_time, query FROM pg_stat_statements ORDER BY 1 DESC LIMIT 100; Stolen from craigkerstiens.com
PUT IMAGE OF EXPENSIVE QUERIES AND TIM
USAGE UNDERSTAND
None
• Dataclips • Queries Stats • Global usage Recap
PostgreSQL is made of unicorns and rainbows!
PostgreSQL is made of unicorns and rainbows!
Thanks!
Questions?