Query for element of array in JSON column

Question

Recently upgraded to using PostgreSQL 9.3.1 to leverage the JSONfunctionalities. In my table I have a json type column that has a structure like this:

{
   \         


        

Answer 1

Came across this post and found that you can directly query on table like this:

SELECT *
FROM   table_name, json_array_elements(json_column) AS data
WHERE  data->>'id' = 123;

Omitting this part:

json_array_elements(t.json_col->'emails')