how to correctly cast json value to text? - Mailing list pgsql-hackers

From Pavel Stehule
Subject how to correctly cast json value to text?
Date
Msg-id CAFj8pRB-DdiBWH-e-0WC4VAkDOXW4FdBPBU28c0jAMm4bpf9QA@mail.gmail.com
Whole thread Raw
Responses Re: how to correctly cast json value to text?
List pgsql-hackers
Hi

I am testing a new subscripting interface for jsonb, and I found one issue.

DO $$
DECLARE v jsonb;
BEGIN
  v['a'] = '"Ahoj"';
  RAISE NOTICE '%', v['a'];
END;
$$;
NOTICE:  "Ahoj"
DO

When I use this interface for reading, the jsonb type is returned. What is the correct way for casting from jsonb text to text value? I would not double quotes inside the result. Cast to text doesn't help. For operator API we can use "->>" symbol. But we have nothing similar for subscript API.

Regards

Pavel


pgsql-hackers by date:

Previous
From: Dilip Kumar
Date:
Subject: Re: Identify missing publications from publisher while create/alter subscription.
Next
From: Pavel Stehule
Date:
Subject: Re: how to correctly cast json value to text?