Just use PostgreSQL and don't evaluate anything. PostgreSQL can handle an enormous number of use cases, scales very well and can be made redundant with read-only nodes too.<p>If you outgrow PostgreSQL, you have an excellent problem and are probably making tons of money. Don't waste mental power on this; just use it and focus on your business/product's core value proposition.<p>Or, read the article, which reaches the same conclusion with way more words. :)