Re: Please provide examples of rows from

Bruce Momjian <bruce@momjian.us> writes:
> but doing this to illustrate ROWS FROM is going to be complex.

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

# select * from rows from (json_to_recordset('[{"a":1,"b":"foo"},{"a":"2","c":"bar"}]') as (x int, y text),
generate_series(1,3))as x(a,b,s) ; 
 a |  b  | s
---+-----+---
 1 | foo | 1
 2 |     | 2
   |     | 3
(3 rows)

would illustrate all the principles.

            regards, tom lane