If you make a column JSONB you can store strings, numbers, arrays, objects, booleans. They don't have to be nested in an object. Though I suppose if you don't w

If you make a column JSONB you can store strings, numbers, arrays, objects, booleans. They don't have to be nested in an object. Though I suppose if you don't want to decode strings that's an extra step. I find duck typing in a DB more of a problem than a solution, unless the dataset is so small and variable I don't even need a RDBMS at all.