Postgres 9.1 vs Mysql 5.6 InnoDB?

Question

Simple question - what would better for a medium/big size database with requirement for compatibility with ACID in 2012.

I have read it all (well most) about mySQL v

Answer 1

PostgreSQL is a more mature database, it has a longer history, it is more ANSI SQL compliant, its query optimizer is significantly better. MySQL has different storage engines like MyISAM, InnoDB, in-memory, all of them are incompatible in a sense that an SQL query which runs on one engine may produce a syntax error when executed on another engine. Stored procedures are better in PostgreSQL.