Re: How cast interval to minutes as number?

[Andreas Kretschmer <akretschmer(at)spamfence(dot)net>]

Andreas <maps(dot)on(at)gmx(dot)net> schrieb:

> Hi,
> 
> I have a column with timestamps  --> some_ts  .
> I'd like to calculate the amount of time between this timestamp and NOW().
> 
> select   some_ts - NOW()   from some_table;
> 
> This results in a column of type  interval.
>  How would I get this interval converted into e.g. minutes.

Okay, lets assume i want to know how old is my daughter, in minutes:

test=# select EXTRACT (EPOCH FROM  now() - '2007-07-28 09:15:00'::timestamp )::int/60;
 ?column?
----------
   172896
(1 row)

You can exchange the fix timestamp with a column from a table, no
problem.


Hope that helps, Andreas
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