PostgreSQL allows to store JSON data in json and jsonb datatype. Let’s understand the difference between json and jsonb. json jsonb json datatype was first introduced with Postgres 9.2 . jsonb datatype was introduced in Postgres 9.4 . json data type stores an exact copy of the input text. jsonb stores data in a decomposed binay format. json does not support indexing jsonb supports indexing [GIN (Generalized Inverted Index)] When to use json data type want to perform a lot o