Re: Please provide examples of rows from

On Sun, Sep 20, 2020 at 02:14:00PM -0400, Tom Lane wrote:
> 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)

Yes, this is very helpful.  I was afraid the JSON would overwhelm the
example, but this looks good.  I wrote the attached doc patch which I
think improves this.  I plan to apply it to all supported versions.

-- 
  Bruce Momjian  <bruce@momjian.us>        https://momjian.us
  EnterpriseDB                             https://enterprisedb.com

  The usefulness of a cup is in its emptiness, Bruce Lee