Re: query reboot pgsql 9.5.1

On Fri, Mar 4, 2016 at 2:16 PM, Felipe de Jesús Molina Bravo <
fjmolinabravo(at)gmail(dot)com> wrote:

> the output is:
>
> pba=# EXPLAIN (ANALYZE, TIMING, BUFFERS) SELECT idprodxintegrar FROM
> _gc_tb a LEFT join _gc_cat b on ( b.arama <@ a.arama and a.arama <@
> b.arama )
> ;
> QUERY
> PLAN
>
> ---------------------------------------------------------------------------------------------------------
> Nested Loop Left Join (cost=0.00..0.01 rows=1 width=4) (actual
> time=0.003..0.003 rows=0 loops=1)
> Join Filter: ((b.arama <@ a.arama) AND (a.arama <@ b.arama))
> -> Seq Scan on _gc_tb a (cost=0.00..0.00 rows=1 width=66) (actual
> time=0.002..0.002 rows=0 loops=1)
> -> Seq Scan on _gc_cat b (cost=0.00..0.00 rows=1 width=70) (never
> executed)
> Planning time: 0.206 ms
> Execution time: 0.074 ms
> (6 filas)
>
>
​OK, so this _gc_tb is empty which means that an extremely fast execution
time is not unsurprising. If the other version actually contains data I
would expect that it would take considerably longer...

David J.
​