> Postgres admittedly cheated a bit at first with the basic JSON support, validation of JSON but then storing it in a text field didn't quite make it a full doc

> Postgres admittedly cheated a bit at first with the basic JSON support, validation of JSON but then storing it in a text field didn't quite make it a full document database. Did anybody claim it was back then? > Being a compressed format I'd argue its a structured format, rather than a compressed format. I.e. it allows traversal without (re-)parsing the json from text. But most of the time the jsonb version won't be (meaningfully) smaller.