How to get a json object as column in postgresql?

Question

I have these table on mu PostgreSQL 9.05:

Table: core Fields: name, description, data

data f

Answer 1

As of PostgreSQL 9.4 you can also use json_to_record.

Builds an arbitrary record from a JSON object (see note below). As with all functions returning record, the caller must explicitly define the structure of the record with an AS clause.

For example:

select * from json_to_record('{"a":1,"b":[1,2,3],"c":"bar"}') as x(a int, b text, d text)

Returns

 a |    b    | d
---+---------+---
 1 | [1,2,3] |