Re: How To Exclude True Values

> yields the following error:
>
> ERROR: schema "a" does not exist
>
> i tried to interpret you query and apply it to my
> case, but, apparently, i didn't too good of a job.
>
> do you see the error?

Hmmm... That is strange. but according to the PostgreSQL documentation on select you can add the
option [AS] keyword between the table_name and alias.

http://www.postgresql.org/docs/8.1/interactive/sql-select.html
[ ONLY ] table_name [ * ] [ [ AS ] alias [ ( column_alias [, ...] ) ] ]

( select ) [ AS ] alias [ ( column_alias [, ...] ) ]

select a.inspect_id, a.inspect_result_id,
a.inspect_result_pass,
a.inspect_result_timestamp
from t_inspect_result AS a

join
(
select max(t_inspect_result.inspect_result_timestamp)
as mstamp,
t_inspect_result.inspect_id
from t_inspect_result
group by t_inspect_result.inspect_id
) AS b

on a.inspect_result_timestamp = b.mstamp
;

Regards,

Richard Broersma Jr.