This is a story of how an IT company has built an information system on PostgreSQL and pl/pgsql:<br /> - why have we decided in favor of PostgreSQL, why pl/pgsql?<br /> - stereotypes and myths of the software market, common misconceptions about stored procedures;<br /> - the story of development, launch, first problems and six years of functioning;<br /> - how do we write code, expand the system and improve performance;<br /> - looking back 10 years: an analysis of both errors and successes;<br /> - what did the business gain by choosing the pl/pgsql platform: financial, technical and HR advantages.