Kate Marshalkina for Moscow DrupalCamp, 28/11/14.

1. PostgreSQL
Bye, the dolphin. Hello, the elephant.
Kate Marshalkina
marshalkina@licel.ru
@kalabro

2. PostgreSQL
Пост-Грес-Кью-Эль или просто Постгрес

3. Faster, better, stronger
• PostgreSQL 100500x faster that MySQL and Oracle DB
• 200k times more reliable
• 13 times more secure
• 221 times cheaper
• ...∞

4. Faster, better, stronger
• PostgreSQL 100500x faster that MySQL and Oracle DB
• 200k times more reliable
• 13 times more secure
???
• 221 times cheaper
• ...∞
Well, I don’t know.

5. > 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.

6. 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

7. Who uses PostgreSQL

8. PostgreSQL
• Object-relational
• True open source
• Follows standards (ANSI-SQL, ACID)
• MVCC
• Sophisticated query planner/optimizer
• Replication

9. 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

10. PostgreSQL Feature Matrix
http://www.postgresql.org/about/featurematrix/

11. Latest stable: 9.3
9.4 RC1 released

12. 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

13. PostgreSQL grows fast
http://momjian.us/main/blogs/pgblog/2014.html#November_11_2014

14. Install PostgreSQL + Drupal
1. Install Postgres
The most difficult part: pg_hba.conf
2. Run pgtune (optionally)
3. Install php5-pgsql
4. Install Drupal

16. Manage PostgreSQL
CLI: psql
UI: pgAdmin, phppgadmin

17. First time vocabulary
• User postgres
sudo -u postgres psql
• Templates for databases
• Schema
• Autovacuum
• ~/.pgpass

19. SA-CORE-2014-005

20. Database abstraction layer
standard, vendor-agnostic abstraction layer for accessing database
servers

21. Example: schema support in
pgsql/schema.inc
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;
}
// ….

22. Database API & EFQ works with any
DB

23. PostgreSQL driver problems
1. MySQL

25. MySQL vs PostgreSQL Drupal
benchmarks?
Well-tuned MySQL is often quicker in synthetic tests.
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.»

26. So, what’s next for you?

27. 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.

28. 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 highload
projects and continuously grows.

29. 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.

30. For PostgreSQL DBA
• Drupal dislikes logic outside of itself.
• Optimize queries and cache.
• Integrate DB views with Drupal API.

31. 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/

32. sudo apt-get install postgresql
by Kate Marshalkina
marshalkina@licel.ru
@kalabro