PostgreSQL 9.2 - Convert TEXT json string to type json/hstore

Question

I have a TEXT column containing valid JSON string.

CREATE TABLE users(settings TEXT);

INSERT INTO users VALUES (\'{\"language\":\"en\",\"gender\":\         


        

Answer 1

Here is a solution from Postgresql: Converting TEXT columns to JSON:

ALTER TABLE table1 ALTER COLUMN col1 TYPE JSON USING col1::JSON;