Postgres Presentation

Oct 9, 2008Download as ppt, pdf

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The document summarizes some of the key differences between MySQL and PostgreSQL databases. It notes that PostgreSQL has more advanced features than MySQL, such as multiple table types, clustering, genetic query optimization, and procedural languages. However, it also points out that MySQL has better performance in some benchmarks. The document then discusses the licensing, noting that PostgreSQL has a liberal open source license while MySQL has more restrictive licensing. It concludes by discussing the debate around "clever" databases with stored procedures versus keeping application logic out of the database.

Multiple table types Clustering ..? MySQL

PostgreSQL Genetic Query Optimizer Procedural Languages Functional/Partial Indexes Oracle Compatibility Advanced Rules, Stored Procedures, Triggers pgSQL (Oracle) Tcl Perl Python Java PHP R Ruby Scheme sh

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http://www.kitebird.com/articles/ruby-mysql.html Guess what license?

The PostgreSQL license PostgreSQL Data Base Management System Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group Portions Copyright (c) 1994-1996 Regents of the University of California Permission to use, copy, modify, and distribute this software and its documentation for any purpose, without fee, and without a written agreement is hereby granted, provided that the above copyright notice and this paragraph and the following two paragraphs appear in all copies. IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.

— DHH We took a pretty radical stand: Stored procedures and all things that make your database clever are evil

Smart databases & Rails Maintain with migrations ..?

PostgreSQL is an open source object-relational database system that has been in development since 1982. It supports Linux, Windows, Mac OS X, and Solaris and can be installed using package managers or installers. PostgreSQL provides many features including procedural languages, functions, indexes, triggers, multi-version concurrency control, and point-in-time recovery. It also has various administration and development tools.

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Postgres Presentation

1. MySQL, PostgreSQL and Rails A polemic

2. Pity the poor programmer

3. Slaving away in the bit mines

4. Just store my data!

5. <polemic>

6. Network effect

7. Features

8. Features PostgreSQL MySQL

9. Multiple table types Clustering ..? MySQL

10. PostgreSQL Genetic Query Optimizer Procedural Languages Functional/Partial Indexes Oracle Compatibility Advanced Rules, Stored Procedures, Triggers pgSQL (Oracle) Tcl Perl Python Java PHP R Ruby Scheme sh

11. Speed

12. http://tweakers.net/reviews/657/5/database-test-dual-intel-xeon-5160-pagina-5.html

13.

14.

15. http://www.spec.org/jAppServer2004/results/jAppServer2004.html

16. Licence

17. From the MySQL website

18. From the MySQL website

19. http://www.kitebird.com/articles/ruby-mysql.html Guess what license?

20. The PostgreSQL license PostgreSQL Data Base Management System Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group Portions Copyright (c) 1994-1996 Regents of the University of California Permission to use, copy, modify, and distribute this software and its documentation for any purpose, without fee, and without a written agreement is hereby granted, provided that the above copyright notice and this paragraph and the following two paragraphs appear in all copies. IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.

21. </polemic>

22. On clever databases

23. — DHH We took a pretty radical stand: Stored procedures and all things that make your database clever are evil

24. Application database

25. Integration database

26. Integration database ✔

27. Complex processes

28. Recursive structures (etc)

29. Smart databases & Rails Maintain with migrations ..?

30. Fin

31. Questions

32. Postgres with Rails

Editor's Notes

#2: In this presentation, I wish to challenge some orthodoxy within and around Rails. My main concern is that is only one good reason to use MySQL, and that reason should not appeal to most Rails developers. I will be contrasting Rails with PostgreSQL which is the most obvious alternative for this audience. The position that Rails holds as the default open source database is certainly not idiosyncratic to the Rails community. But that position is supported by DHH’s support for MySQL, along with his distaste for stored procedures and the like. My second proposition tonight is that there certainly are valid uses for code in your database, and I hope to end by raising the question of how it affects your code if you decide to make your Rails database smart for general discussion.

Postgres Presentation

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Editor's Notes