That's an explain. We need explain analyze.

2006/3/23, Maciej Piekielniak <[EMAIL PROTECTED]>:
> Hello Markus,
>
> Wednesday, March 22, 2006, 6:58:44 PM, you wrote:
>
> MB> Send an EXPLAIN ANALYZE of the query along with the description of the
> MB> involved tables. Also hardware information (RAM, disks, CPU), what
> MB> other applications are running on that box and the parameter values in
> MB> postgresql.conf that you changed from the defaults would be
> MB> interesting.
>
>
>  Sort  (cost=21413847.71..21413867.37 rows=7864 width=107)
>    Sort Key: dostawcy.id_dostawcy
>    ->  Group  (cost=1360.03..21413073.50 rows=7864 width=107)
>          ->  Sort  (cost=1360.03..1379.69 rows=7864 width=107)
>                Sort Key: towar.id_towar, towar.key2, towar.nazwa, towar.min1, 
> towar.max1, towar.ilosc_jed, towar.ilosc_nom, dostawcy.id_dostawcy, 
> jednostka_miary.jednostka, towar.ilosc_paczkowa, towar.key1
>                ->  Hash Left Join  (cost=2.21..585.81 rows=7864 width=107)
>                      Hash Cond: ("outer".id_jednostka_miary = 
> "inner".id_jednostka_miary)
>                      ->  Hash Left Join  (cost=1.14..466.78 rows=7864 
> width=103)
>                            Hash Cond: ("outer".id_dostawcy = 
> "inner".id_dostawcy)
>                            ->  Seq Scan on towar  (cost=0.00..347.68 
> rows=7864 width=103)
>                                  Filter: policzalne
>                            ->  Hash  (cost=1.11..1.11 rows=11 width=4)
>                                  ->  Seq Scan on dostawcy  (cost=0.00..1.11 
> rows=11 width=4)
>                      ->  Hash  (cost=1.06..1.06 rows=6 width=12)
>                            ->  Seq Scan on jednostka_miary  (cost=0.00..1.06 
> rows=6 width=12)
>          SubPlan
>            ->  Aggregate  (cost=2722.71..2722.72 rows=1 width=14)
>                  ->  Nested Loop  (cost=64.33..2722.28 rows=171 width=14)
>                        ->  Hash Join  (cost=64.33..602.79 rows=368 width=12)
>                              Hash Cond: ("outer".id_zlecenia = 
> "inner".id_zlecenia)
>                              ->  Seq Scan on zlecenia_elementy  
> (cost=0.00..488.85 rows=9185 width=20)
>                              ->  Hash  (cost=63.98..63.98 rows=140 width=8)
>                                    ->  Bitmap Heap Scan on zlecenia  
> (cost=6.50..63.98 rows=140 width=8)
>                                          Recheck Cond: ((id_paczka = 52) OR 
> (id_paczka = 50) OR (id_paczka = 53))
>                                          ->  BitmapOr  (cost=6.50..6.50 
> rows=142 width=0)
>                                                ->  Bitmap Index Scan on 
> zlecenia_id_paczka  (cost=0.00..2.17 rows=47 width=0)
>                                                      Index Cond: (id_paczka = 
> 52)
>                                                ->  Bitmap Index Scan on 
> zlecenia_id_paczka  (cost=0.00..2.17 rows=47 width=0)
>                                                      Index Cond: (id_paczka = 
> 50)
>                                                ->  Bitmap Index Scan on 
> zlecenia_id_paczka  (cost=0.00..2.17 rows=47 width=0)
>                                                      Index Cond: (id_paczka = 
> 53)
>                        ->  Index Scan using zlezenia_towar_elementy_towar on 
> zlecenia_towar  (cost=0.00..5.75 rows=1 width=18)
>                              Index Cond: 
> ((zlecenia_towar.id_zlecenia_elementy = "outer".id_zlecenia_elementy) AND 
> (zlecenia_towar.id_towar = $0))
> (33 rows)
>
> --
> Best regards,
>  Maciej                            mailto:[EMAIL PROTECTED]
>
>
> ---------------------------(end of broadcast)---------------------------
> TIP 3: Have you checked our extensive FAQ?
>
>                http://www.postgresql.org/docs/faq
>

---------------------------(end of broadcast)---------------------------
TIP 6: explain analyze is your friend

Reply via email to