Re: how do i find out how long a query took?

Andy Kriger wrote:
> Is there a psql function I can call after making a query to find out how
> long the last query took? (e.g. after running a create index on a table with
> a lot of records, I would like to know how long it took). I know I could do
> this using JDBC and wrapping the query in getTimeMillis() but I'm curious if
> psql has a built-in function or if the client has a utility cmd.

Yes, you can use \timing in psql:

test=> \timing
Timing is on.
test=> select * from pg_language;
lanname | lanispl | lanpltrusted | lanplcallfoid | lanvalidator |
lanacl
----------+---------+--------------+---------------+--------------+--------

sql | f | t | 0 | 2248 | {=U}
internal | f | f | 0 | 2246 | {=}
c | f | f | 0 | 2247 | {=}
(3 rows)

Time: 76.83 ms

and in 7.3 we will have log_duration which will send all query
durations to the server logs.

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