title: Inserting nested json into a column in Postgres
body: <p>I'm writing an insert function and I have a nested dictionary that I want to insert into a column in postgres, is there a way to insert the whole json into the column? Lets say I have to insert the value of the key "val" into a column, how can I achieve that? I'm using psycopg2 library in my python code.</p>
  
  <pre><code>"val": {
    "name": {
      "mike": "2.3",
      "roy": "4.2"
       }
   }
  </code></pre>