postgreSQL vs MySQL : motivated choice

Hi experts!

Until now, all the database developments I implemented were done using M$ SQL Server. Very much interested by the open source solutions, I recently started to use MyQSL to develop a reporting solution based on BIRT (eclipse). In order not to stick to the first considered choice, I now successfully migrated the core of the solution to postgreSQL to check before my final choice.

It seemed to me that the querying interface from postgreSQL was much more intuitive than the MySQL one for a Window$ user. This has been confirmed.

The additional skills needed to switch from the SQL Server world to the MySQL world are very limited though, compared to those needed to migrate from MySQL to postgreSQL. I am especially speaking of stored procedures.

However, with the expert's help, I could go as far as being able to compare bare execution speed. postgreSQL seems much more powerful for me, as use of the cache should be limited in my solution.

Having read a lot of stuff during the migration process, it seems to me too that postgreSQL has many more capabilities in terms of available languages, namely. May be to many: it can be confusing.

Also I like a lot the fact that I did not hear that it was bought over by a competitor.

Now these are still pretty much uninformed personal thoughts, and I would be pleased to hear form you, experts.

Thank you very much in adance.

Vincent.