Drupal meets PostgreSQL for DrupalCamp MSK 2014

PostgreSQLBye, the dolphin. Hello, the elephant.

Kate Marshalkina

marshalkina@licel.ru@kalabro

PostgreSQLПост-Грес-Кью-Эль или просто Постгрес

• PostgreSQL 100500x faster that MySQL and Oracle DB

• 200k times more reliable

• 13 times more secure

• 221 times cheaper

• ...∞

Faster, better, stronger

• PostgreSQL 100500x faster that MySQL and Oracle DB

• 200k times more reliable

• 13 times more secure

• 221 times cheaper

• ...∞

Faster, better, stronger

???Well, I don’t know.

> whoami

Kate Marshalkina, Senior Web Developer (not a DBA!)

6 year of PHP, 3 years 4 months * with Drupal + Postgres

https://www.drupal.org/u/kalabro and @kalabro

marshalkina@licel.ru

* According to Drupal.org. 5 years 27 weeks according to Drupal.ru.

Agenda

• About PostgreSQL

• Install Drupal + PostgreSQL

• Discover why it works (Drupal DBAL)

• The most important slide #3

• Who you are in Drupal dev world and what to do with it?

• Links

Who uses PostgreSQL

PostgreSQL

• Object-relational

• True open source

• Follows standards (ANSI-SQL, ACID)

• MVCC

• Sophisticated query planner/optimizer

• Replication

PostgreSQL (advanced)

• Inherited tables

• Huge amount of build-in data types + custom types

• Advanced indexes (compound, unique, partial, functional)

• Stored procedures

• Full text search (FTS)

• JSON(B)

• Extensions (hstore, PostGIS, dblink, …)http://www.postgresql.org/docs/9.3/static/contrib.html

PostgreSQL Feature Matrixhttp://www.postgresql.org/about/featurematrix/

Latest stable: 9.39.4 RC1 released

JSON?

Simple Key=Value (hstore) supported since 8.3

Full JSON (jsonb) with indexes — in PostgreSQL 9.4!

Thanks to dev team:

Олег Бартунов, Александр Коротков, Федор Сигаев

PostgreSQL grows fasthttp://momjian.us/main/blogs/pgblog/2014.html#November_11_2014

Install PostgreSQL + Drupal

1. Install PostgresThe most difficult part: pg_hba.conf

2. Run pgtune (optionally)

3. Install php5-pgsql

4. Install Drupal

CLI: psql

UI: pgAdmin, phppgadmin

Manage PostgreSQL

First time vocabulary

• User postgres

sudo -u postgres psql

• Templates for databases

• Schema

• Autovacuum

• ~/.pgpass

SA-CORE-2014-005

Database abstraction layerstandard, vendor-agnostic abstraction layer for accessing database servers

public function queryTableInformation($table) {

// Generate a key to reference this table's information on.

$key = $this->connection->prefixTables('{' . $table . '}');

if (!strpos($key, '.')) {

$key = 'public.' . $key;

}

// ….

Example: schema support in pgsql/schema.inc

Database API & EFQ works with any DB

PostgreSQL driver problems

1. MySQL

MySQL vs PostgreSQL Drupal benchmarks?

http://posulliv.github.io/2012/06/29/mysql-postgres-bench/

«Certainly, from a performance point of view, I see no issues with using PostgreSQL with Drupal. In fact, for Drupal sites using the Views module (probably the majority), I would say PostgreSQL is probably even a better option than MySQL due to its more advanced optimizer and execution engine.»

Well-tuned MySQL is often quicker in synthetic tests.

So, what’s next for you?

For Project Architect / Team Lead

PostgreSQL is an open source level BDMS with huge amount of features.

Consider PostgreSQL for quick start and continuous growth.

It competes proprietary giants like Oracle DB and smells like Enterprise for your business.

For students / fellow developers

PostgreSQL is a great choice if you’ve just finished your Database course. It respects standards and has a lot of cool features for your night time.

As PostgreSQL market is full of highloadprojects and continuously grows.

For Drupal Developers

Avoid MySQLisms.

• db_query()/addExpression()/…

• Use Database API in contribs

• Learn new staff by contributing to both Drupal and Postgres

• INSTALL IT ON DEV! It’s simple.

For PostgreSQL DBA

• Drupal dislikes logic outside of itself.

• Optimize queries and cache.

• Integrate DB views with Drupal API.

PostgreSQL meets Drupal

• http://planet.postgresql.org/

• http://www.meetup.com/postgresqlrussia/

• http://postgresmen.ru/articles/postgresql-users-russia-2014

• http://prodrupal.ru/ru/node/129

• https://www.drupal.org/node/555514

• http://pgconf.ru/

sudo apt-get install postgresql

by Kate Marshalkina

marshalkina@licel.ru@kalabro