Hi!
On Wed, 24 Feb 1999, Tom Lane wrote:
> What version are you running? Also, does it act the same if you try to
6.4.2 on Sparc-solaris2.5.1
> EXPLAIN that same query? If EXPLAIN fails then the problem is in the
> plan/optimize stage, not actual execution of the query.
EXPLAIN works fine:
EXPLAIN SELECT DISTINCT p.subsec_id FROM central cn, shops sh, districts d, positions p WHERE cn.shop_id =
sh.shop_idAND sh.distr_id = d.distr_id AND d.city_id = 2 AND cn.pos_id = p.pos_id AND cn.date_i >=
current_date- '7 days'::timespan
;
NOTICE: QUERY PLAN:
Unique (cost=0.00 size=0 width=0) -> Sort (cost=0.00 size=0 width=0) -> Nested Loop (cost=0.00 size=1
width=16) -> Nested Loop (cost=0.00 size=1 width=12) -> Merge Join (cost=0.00 size=1
width=8) -> Seq Scan (cost=0.00 size=0 width=0) -> Sort
(cost=0.00size=0 width=0) -> Seq Scan on districts d
(cost=0.00 size=0 width=2) -> Seq Scan (cost=0.00 size=0 width=0)
-> Sort (cost=0.00 size=0 width=0) -> Seq Scan on shops sh (cost=0.00
size=0 width=6) -> Seq Scan on central cn (cost=0.00 size=0 width=4) -> Seq Scan on
positionsp (cost=0.00 size=0 width=4)
EXPLAIN
Oleg.
---- Oleg Broytmann http://members.xoom.com/phd2/ phd2@earthling.net Programmers don't die, they
justGOSUB without RETURN.
