The query languages offered with many "big data" cloud solutions are quite terrible. I am referring to languages like PromQL/LogQL and Google's "logging query language". For one, these query languages fundamentally have extremely similar requirements: filtering text by some substring or perhaps a regular expression. In most cases simply offering a 1986 standard SQL compliance interface would be sufficient and better than some proprietary query language. This must be motivated by vendor-lock-in aspirations.