Re: extracting from epoch values in pgsql

On Thu, 17 Sep 2009, Gavin McCullagh wrote:

> On Thu, 17 Sep 2009, Frank Bax wrote:
> 
> > Gavin McCullagh wrote:
> >> SELECT time, to_timestamp(time) AS ts, 
> >> EXTRACT('months',to_timestamp(time)) FROM mdl_log;
> >> ERROR:  syntax error at or near ","
> >> LINE 1: ...t time, to_timestamp(time) AS ts, extract('months',to_times...
> >
> > Try replacing extract('month',value) with extract('months' from value)
> 
> Makes no difference whether month or months:

Actually, I pasted a different query, but based on the one in my last
email:

moodle-01-01-2009=# SELECT EXTRACT('months',(TIMESTAMP WITH TIME ZONE 'epoch' + mdl_log.time * INTERVAL '1 second'))
FROM mdl_log;
ERROR:  syntax error at or near ","
LINE 1: SELECT EXTRACT('months',(TIMESTAMP WITH TIME ZONE 'epoch' + ...                              ^
moodle-01-01-2009=# SELECT EXTRACT('month',(TIMESTAMP WITH TIME ZONE 'epoch' + mdl_log.time * INTERVAL '1 second'))
FROM mdl_log;
ERROR:  syntax error at or near ","
LINE 1: SELECT EXTRACT('month',(TIMESTAMP WITH TIME ZONE 'epoch' + m...                             ^

Gavin