Re: Use or not record count on examples

This example you said returns one value, so I think it is ok. 

I'm talking about lists with multiple fields or multiple lines. In [1] we have both modes.

I don't think that "(2 rows)" is useful

select jsonb_path_query(:'json', 'strict $.**.HR');
 jsonb_path_query
------------------
 73
 135

select jsonb_path_query(:'json', 'lax $.track.segments[*].location ?(@[*] > 15)');
 jsonb_path_query
------------------
 47.763
 47.706
(2 rows)

[1] https://www.postgresql.org/docs/current/functions-json.html#FUNCTIONS-SQLJSON-STRICT-AND-LAX-MODES