I wrote:
> You're right that the only suitable core function is going to be
> json[b]_to_recordset, but I don't see why you can't extend the
> existing example for that. Something like
Meh, I was too hasty and pushed "send" with a broken example. Better
=# select * from rows from (json_to_recordset('[{"a":1,"b":"foo"},{"a":"2","b":"bar"}]') as (a int, b text), generate_series(1,3)) as x(p,q,s);
p | q | s
---+-----+---
1 | foo | 1
2 | bar | 2
| | 3
(3 rows)
regards, tom lane