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 What PostgreSQL could learn from MySQL The learning continues ... Susanne Ebrecht PostgreSQL User Group Germany MySQL Support Engineer PGCon 2008

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Page 1: What PostgreSQL could learn from MySQLWhat PostgreSQL could learn from MySQL The learning continues ... Susanne Ebrecht PostgreSQL User Group Germany MySQL Support Engineer PGCon 2008©

   

What PostgreSQL could learn from MySQL

The learning continues ...

Susanne Ebrecht

PostgreSQL User Group GermanyMySQL Support Engineer

PGCon 2008

Page 2: What PostgreSQL could learn from MySQLWhat PostgreSQL could learn from MySQL The learning continues ... Susanne Ebrecht PostgreSQL User Group Germany MySQL Support Engineer PGCon 2008©

   

© Mai 2008, MySQL/PostgreSQL User Group Germany, Author: Susanne Ebrecht

2

Main questions

Why get MySQL so popular?

What are they doing to stay popular?

Lets start analysing this ...

Page 3: What PostgreSQL could learn from MySQLWhat PostgreSQL could learn from MySQL The learning continues ... Susanne Ebrecht PostgreSQL User Group Germany MySQL Support Engineer PGCon 2008©

   

© Mai 2008, MySQL/PostgreSQL User Group Germany, Author: Susanne Ebrecht

3

Market

Where can you find the most users?

Windows

Linux

For what could they need a RDBMS?

World Wild Web / Intranet

PHP

Private issues

Page 4: What PostgreSQL could learn from MySQLWhat PostgreSQL could learn from MySQL The learning continues ... Susanne Ebrecht PostgreSQL User Group Germany MySQL Support Engineer PGCon 2008©

   

© Mai 2008, MySQL/PostgreSQL User Group Germany, Author: Susanne Ebrecht

4

Easy to use

Page 5: What PostgreSQL could learn from MySQLWhat PostgreSQL could learn from MySQL The learning continues ... Susanne Ebrecht PostgreSQL User Group Germany MySQL Support Engineer PGCon 2008©

   

© Mai 2008, MySQL/PostgreSQL User Group Germany, Author: Susanne Ebrecht

5

Packaging

Page 6: What PostgreSQL could learn from MySQLWhat PostgreSQL could learn from MySQL The learning continues ... Susanne Ebrecht PostgreSQL User Group Germany MySQL Support Engineer PGCon 2008©

   

© Mai 2008, MySQL/PostgreSQL User Group Germany, Author: Susanne Ebrecht

6

Knowledge about basics

Normalisation3NF

Entity Relationship Model

Referential IntegritySQL

Background

Transactions Trigger

Functions

Page 7: What PostgreSQL could learn from MySQLWhat PostgreSQL could learn from MySQL The learning continues ... Susanne Ebrecht PostgreSQL User Group Germany MySQL Support Engineer PGCon 2008©

   

© Mai 2008, MySQL/PostgreSQL User Group Germany, Author: Susanne Ebrecht

7

Documentation

Eine Datenbank ist eine strukturierte Sammlung von Daten.

A database is a structured collection of data.

Une base de données est un ensemble organisé de données.

Una base de datos es una colección estruturada de datos.

Books Books

Page 8: What PostgreSQL could learn from MySQLWhat PostgreSQL could learn from MySQL The learning continues ... Susanne Ebrecht PostgreSQL User Group Germany MySQL Support Engineer PGCon 2008©

   

© Mai 2008, MySQL/PostgreSQL User Group Germany, Author: Susanne Ebrecht

8

Combination with others

 Agreement with PHP to implement MySQL as default

LAMP

Tries to get an agreement with OpenOffice

Tries to get agreements with others

Page 9: What PostgreSQL could learn from MySQLWhat PostgreSQL could learn from MySQL The learning continues ... Susanne Ebrecht PostgreSQL User Group Germany MySQL Support Engineer PGCon 2008©

   

© Mai 2008, MySQL/PostgreSQL User Group Germany, Author: Susanne Ebrecht

9

Users

Page 10: What PostgreSQL could learn from MySQLWhat PostgreSQL could learn from MySQL The learning continues ... Susanne Ebrecht PostgreSQL User Group Germany MySQL Support Engineer PGCon 2008©

   

© Mai 2008, MySQL/PostgreSQL User Group Germany, Author: Susanne Ebrecht

10

Advantages

No Transactions at MyISAM

Mail (Greylisting)

Call center (out calls)

Games

No strict error behaviour

February, 31st

No check of referential integrity

Page 11: What PostgreSQL could learn from MySQLWhat PostgreSQL could learn from MySQL The learning continues ... Susanne Ebrecht PostgreSQL User Group Germany MySQL Support Engineer PGCon 2008©

   

© Mai 2008, MySQL/PostgreSQL User Group Germany, Author: Susanne Ebrecht

11

Upgrade version

Page 12: What PostgreSQL could learn from MySQLWhat PostgreSQL could learn from MySQL The learning continues ... Susanne Ebrecht PostgreSQL User Group Germany MySQL Support Engineer PGCon 2008©

   

© Mai 2008, MySQL/PostgreSQL User Group Germany, Author: Susanne Ebrecht

12

Backward Compatibility

Strict mode not default

Behaviour of February, 31st

Only default on Windows

Users don't have to change their software

Old behaviours won't changed by default

New options and behaviourscan be configured by user

Page 13: What PostgreSQL could learn from MySQLWhat PostgreSQL could learn from MySQL The learning continues ... Susanne Ebrecht PostgreSQL User Group Germany MySQL Support Engineer PGCon 2008©

   

© Mai 2008, MySQL/PostgreSQL User Group Germany, Author: Susanne Ebrecht13

Eierlegende Wollmilchsaueggs, wool and milk spending pic

Page 14: What PostgreSQL could learn from MySQLWhat PostgreSQL could learn from MySQL The learning continues ... Susanne Ebrecht PostgreSQL User Group Germany MySQL Support Engineer PGCon 2008©

   

© Mai 2008, MySQL/PostgreSQL User Group Germany, Author: Susanne Ebrecht

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Replication / Cluster

Simple statement based replication

Simple row based replication

Simple master <-> master replication

Simple clustering

All in only one package

Page 15: What PostgreSQL could learn from MySQLWhat PostgreSQL could learn from MySQL The learning continues ... Susanne Ebrecht PostgreSQL User Group Germany MySQL Support Engineer PGCon 2008©

   

© Mai 2008, MySQL/PostgreSQL User Group Germany, Author: Susanne Ebrecht

15

Perfection

Step by step development

Replication

Cluster

Connectors

Other features

Release before feature is perfect(good enough feature)

Continuous development

Page 16: What PostgreSQL could learn from MySQLWhat PostgreSQL could learn from MySQL The learning continues ... Susanne Ebrecht PostgreSQL User Group Germany MySQL Support Engineer PGCon 2008©

   

© Mai 2008, MySQL/PostgreSQL User Group Germany, Author: Susanne Ebrecht

16

Release

Release often

Release early

Don't try to be perfect

Fix bugs after release

Page 17: What PostgreSQL could learn from MySQLWhat PostgreSQL could learn from MySQL The learning continues ... Susanne Ebrecht PostgreSQL User Group Germany MySQL Support Engineer PGCon 2008©

   

© Mai 2008, MySQL/PostgreSQL User Group Germany, Author: Susanne Ebrecht

17

Feature Release

Page 18: What PostgreSQL could learn from MySQLWhat PostgreSQL could learn from MySQL The learning continues ... Susanne Ebrecht PostgreSQL User Group Germany MySQL Support Engineer PGCon 2008©

   

© Mai 2008, MySQL/PostgreSQL User Group Germany, Author: Susanne Ebrecht

18

Nice to have

A good marketing that is able to sell bugs as features

Page 19: What PostgreSQL could learn from MySQLWhat PostgreSQL could learn from MySQL The learning continues ... Susanne Ebrecht PostgreSQL User Group Germany MySQL Support Engineer PGCon 2008©

   

© Mai 2008, MySQL/PostgreSQL User Group Germany, Author: Susanne Ebrecht

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Bug tracking

Page 20: What PostgreSQL could learn from MySQLWhat PostgreSQL could learn from MySQL The learning continues ... Susanne Ebrecht PostgreSQL User Group Germany MySQL Support Engineer PGCon 2008©

   

© Mai 2008, MySQL/PostgreSQL User Group Germany, Author: Susanne Ebrecht

20

Warnings

 Don't implement encoding stuff by your own

 Don't stop strong code review

 Stay being such a great community

Page 21: What PostgreSQL could learn from MySQLWhat PostgreSQL could learn from MySQL The learning continues ... Susanne Ebrecht PostgreSQL User Group Germany MySQL Support Engineer PGCon 2008©

   

© Mai 2008, MySQL/PostgreSQL User Group Germany, Author: Susanne Ebrecht

21

Closing Words

Thank you ...

MySQL community for helping to prepare this talk

Josh Berkus for motivating me

Thanks for listening