[madhusudhan000]

Well, for one thing, if they say schemaless, then you are using the wrong tool for the job.

Sure postgres has JSONB (comparing to mongo db), Key value store such as HStore, but they do well if they fit on one machine. The moment you hit that scale you have to realize that there are tools specifically built for this.

There is the phoenix project https://phoenix.apache.org/ that salesforce is using for scaling. Definitely worth a try.

But again, the title of the article sounded nothing more than a rant to me.

[peatmoss]

The term schemaless within Uber is more of a product name. It's kind of a joke with many of the engineers, that it's anything but devoid of schema.