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Форумы / PostgreSQL [игнор отключен] [закрыт для гостей] / разные планы выполнения на боевой и развернутой тестовой бд. причины?
10 сообщений из 10, страница 1 из 1
разные планы выполнения на боевой и развернутой тестовой бд. причины?
    #39031364
Фотография Legushka
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Legushka
Участник
пока нашел только одно отличие:
в самой бд:
на боевой базе:
LC_COLLATE = 'ru_RU.UTF-8'
LC_CTYPE = 'ru_RU.UTF-8'
на тестовой
LC_COLLATE = 'en_US.UTF-8'
LC_CTYPE = 'en_US.UTF-8'

все остальное совпадает. физически на разных машинах, оперативы намного больше на боевом.

в запросе какрас идет сравнение построчное
Код: sql
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...
from Wperson0 n0
	inner join Wperson1 n1 on 
		n0.firstname = n1.firstname  
		and n0.middlename=n1.middlename
		and lower(n0.secondname)=lower(n1.secondname) 
...


на боевом значения берутся по индексу
на тестовом идет прямое обращение к бд=(

может быть причина разных планов в LC_COLLATE, LC_CTYPE или еще искать причины?
...
Рейтинг: 0 / 0
18.08.2015, 10:22
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разные планы выполнения на боевой и развернутой тестовой бд. причины?
    #39031373
Ivan Durak
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Ivan Durak
Участник
АГДЕСАМИПЛАНЫЕПТ
...
Рейтинг: 0 / 0
18.08.2015, 10:33
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разные планы выполнения на боевой и развернутой тестовой бд. причины?
    #39031406
Фотография Legushka
Скрыть профиль Поместить в игнор-лист Сообщения автора в теме
Legushka
Участник
Ivan Durak, пример (все лишнее поубирал)
Код: sql
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with 	Wperson0 as ( -- ФИО взятое из документа (в одном доке участвует два участника)
		with Wdoc as (select distinct unnest(ARRAY[80404130,80404134]) as person_id )
		select distinct np.firstname, np.middlename, np.secondname, np.birth_date from Wdoc doc inner join ibd.person np on np.person_id = doc.person_id),
	Wperson1 as ( -- все совпадения ФИО + дата, дата может быть не указана
		select distinct np.person_id
		from Wperson0 np0 
		inner join ibd.person np on 
			np0.firstname = np.firstname and 
			np0.middlename=np.middlename and 
			lower(np0.secondname)=lower(np.secondname) and 
			coalesce(np0.birth_date,np.birth_date,'1000-10-10')=coalesce(np.birth_date,np0.birth_date,'1000-10-10'))
	select * from Wperson1


ЕПТСАМПЛАННАТЕСТОВОЙ:
 

Код: sql
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"CTE Scan on wperson1  (cost=42567559.04..42567563.04 rows=200 width=8)"
"  CTE wperson0"
"    ->  Unique  (cost=10388098.51..10951726.81 rows=9018053 width=54)"
"          CTE wdoc"
"            ->  HashAggregate  (cost=0.76..1.26 rows=100 width=0)"
"                  Group Key: unnest('{80404130,80404134}'::integer[])"
"                  ->  Result  (cost=0.00..0.51 rows=100 width=0)"
"          ->  Sort  (cost=10388097.24..10500822.90 rows=45090264 width=54)"
"                Sort Key: np.firstname, np.middlename, np.secondname, np.birth_date"
"                ->  Nested Loop  (cost=0.00..32184.00 rows=45090264 width=54)"
"                      ->  CTE Scan on wdoc doc  (cost=0.00..2.00 rows=100 width=4)"
"                      ->  Append  (cost=0.00..321.43 rows=39 width=63)"
"                            ->  Seq Scan on person np  (cost=0.00..1.01 rows=1 width=108)"
"                                  Filter: (doc.person_id = person_id)"
"                            ->  Index Scan using person_a_pkey on person_a np_1  (cost=0.43..8.45 rows=1 width=62)"
"                                  Index Cond: (person_id = doc.person_id)"
"                            ->  Index Scan using person_ani_pkey on person_ani np_2  (cost=0.43..8.45 rows=1 width=64)"
"                                  Index Cond: (person_id = doc.person_id)"
"                            ->  Index Scan using person_b_pkey on person_b np_3  (cost=0.43..8.45 rows=1 width=62)"
"                                  Index Cond: (person_id = doc.person_id)"
"                            ->  Index Scan using person_before_a_pkey on person_before_a np_4  (cost=0.42..8.08 rows=1 width=25)"
"                                  Index Cond: (person_id = doc.person_id)"
"                            ->  Index Scan using person_bj_pkey on person_bj np_5  (cost=0.43..8.45 rows=1 width=61)"
"                                  Index Cond: (person_id = doc.person_id)"
"                            ->  Index Scan using person_ch_pkey on person_ch np_6  (cost=0.43..8.41 rows=1 width=61)"
"                                  Index Cond: (person_id = doc.person_id)"
"                            ->  Index Scan using person_d_pkey on person_d np_7  (cost=0.43..8.45 rows=1 width=62)"
"                                  Index Cond: (person_id = doc.person_id)"
"                            ->  Index Scan using person_e_pkey on person_e np_8  (cost=0.43..8.45 rows=1 width=60)"
"                                  Index Cond: (person_id = doc.person_id)"
"                            ->  Index Scan using person_f_pkey on person_f np_9  (cost=0.43..8.45 rows=1 width=64)"
"                                  Index Cond: (person_id = doc.person_id)"
"                            ->  Index Scan using person_ga_pkey on person_ga np_10  (cost=0.43..8.41 rows=1 width=66)"
"                                  Index Cond: (person_id = doc.person_id)"
"                            ->  Index Scan using person_gak_pkey on person_gak np_11  (cost=0.43..8.41 rows=1 width=63)"
"                                  Index Cond: (person_id = doc.person_id)"
"                            ->  Index Scan using person_gam_pkey on person_gam np_12  (cost=0.43..8.45 rows=1 width=63)"
"                                  Index Cond: (person_id = doc.person_id)"
"                            ->  Index Scan using person_gb_pkey on person_gb np_13  (cost=0.43..8.45 rows=1 width=64)"
"                                  Index Cond: (person_id = doc.person_id)"
"                            ->  Index Scan using person_h_pkey on person_h np_14  (cost=0.43..8.45 rows=1 width=65)"
"                                  Index Cond: (person_id = doc.person_id)"
"                            ->  Index Scan using person_han_pkey on person_han np_15  (cost=0.43..8.45 rows=1 width=63)"
"                                  Index Cond: (person_id = doc.person_id)"
"                            ->  Index Scan using person_i_pkey on person_i np_16  (cost=0.43..8.45 rows=1 width=61)"
"                                  Index Cond: (person_id = doc.person_id)"
"                            ->  Index Scan using person_ka_pkey on person_ka np_17  (cost=0.43..8.45 rows=1 width=62)"
"                                  Index Cond: (person_id = doc.person_id)"
"                            ->  Index Scan using person_kb_pkey on person_kb np_18  (cost=0.43..8.45 rows=1 width=62)"
"                                  Index Cond: (person_id = doc.person_id)"
"                            ->  Index Scan using person_kot_pkey on person_kot np_19  (cost=0.43..8.45 rows=1 width=62)"
"                                  Index Cond: (person_id = doc.person_id)"
"                            ->  Index Scan using person_ll_pkey on person_ll np_20  (cost=0.43..8.45 rows=1 width=60)"
"                                  Index Cond: (person_id = doc.person_id)"
"                            ->  Index Scan using person_ma_pkey on person_ma np_21  (cost=0.43..8.45 rows=1 width=61)"
"                                  Index Cond: (person_id = doc.person_id)"
"                            ->  Index Scan using person_mb_pkey on person_mb np_22  (cost=0.43..8.45 rows=1 width=64)"
"                                  Index Cond: (person_id = doc.person_id)"
"                            ->  Index Scan using person_mk_pkey on person_mk np_23  (cost=0.43..8.45 rows=1 width=65)"
"                                  Index Cond: (person_id = doc.person_id)"
"                            ->  Index Scan using person_n_pkey on person_n np_24  (cost=0.43..8.45 rows=1 width=64)"
"                                  Index Cond: (person_id = doc.person_id)"
"                            ->  Index Scan using person_o_pkey on person_o np_25  (cost=0.43..8.45 rows=1 width=60)"
"                                  Index Cond: (person_id = doc.person_id)"
"                            ->  Index Scan using person_pj_pkey on person_pj np_26  (cost=0.43..8.41 rows=1 width=62)"
"                                  Index Cond: (person_id = doc.person_id)"
"                            ->  Index Scan using person_r_pkey on person_r np_27  (cost=0.43..8.45 rows=1 width=66)"
"                                  Index Cond: (person_id = doc.person_id)"
"                            ->  Index Scan using person_sa_pkey on person_sa np_28  (cost=0.43..8.45 rows=1 width=63)"
"                                  Index Cond: (person_id = doc.person_id)"
"                            ->  Index Scan using person_sal_pkey on person_sal np_29  (cost=0.43..8.45 rows=1 width=63)"
"                                  Index Cond: (person_id = doc.person_id)"
"                            ->  Index Scan using person_sb_pkey on person_sb np_30  (cost=0.43..8.45 rows=1 width=62)"
"                                  Index Cond: (person_id = doc.person_id)"
"                            ->  Index Scan using person_sche_pkey on person_sche np_31  (cost=0.42..8.37 rows=1 width=59)"
"                                  Index Cond: (person_id = doc.person_id)"
"                            ->  Index Scan using person_sh_pkey on person_sh np_32  (cost=0.43..8.45 rows=1 width=65)"
"                                  Index Cond: (person_id = doc.person_id)"
"                            ->  Index Scan using person_shao_pkey on person_shao np_33  (cost=0.43..8.45 rows=1 width=63)"
"                                  Index Cond: (person_id = doc.person_id)"
"                            ->  Index Scan using person_sp_pkey on person_sp np_34  (cost=0.43..8.45 rows=1 width=64)"
"                                  Index Cond: (person_id = doc.person_id)"
"                            ->  Index Scan using person_t_pkey on person_t np_35  (cost=0.43..8.45 rows=1 width=61)"
"                                  Index Cond: (person_id = doc.person_id)"
"                            ->  Index Scan using person_v_pkey on person_v np_36  (cost=0.43..8.45 rows=1 width=61)"
"                                  Index Cond: (person_id = doc.person_id)"
"                            ->  Index Scan using person_ya_pkey on person_ya np_37  (cost=0.43..8.41 rows=1 width=60)"
"                                  Index Cond: (person_id = doc.person_id)"
"                            ->  Index Scan using person_z_pkey on person_z np_38  (cost=0.43..8.45 rows=1 width=63)"
"                                  Index Cond: (person_id = doc.person_id)"
"  CTE wperson1"
"    ->  HashAggregate  (cost=31615830.24..31615832.24 rows=200 width=8)"
"          Group Key: np_39.person_id"
"          ->  Merge Join  (cost=28458280.94..31614559.53 rows=508283 width=8)"
"                Merge Cond: (((np0.firstname)::text = (np_39.firstname)::text) AND ((np0.middlename)::text = (np_39.middlename)::text) AND ((lower((np0.secondname)::text)) = (lower((np_39.secondname)::text))))"
"                Join Filter: (COALESCE(np0.birth_date, np_39.birth_date, '1000-10-10'::date) = COALESCE(np_39.birth_date, np0.birth_date, '1000-10-10'::date))"
"                ->  Sort  (cost=2208499.88..2231045.01 rows=9018053 width=100)"
"                      Sort Key: np0.firstname, np0.middlename, (lower((np0.secondname)::text))"
"                      ->  CTE Scan on wperson0 np0  (cost=0.00..180361.06 rows=9018053 width=100)"
"                ->  Materialize  (cost=26249781.06..26700683.70 rows=90180529 width=63)"
"                      ->  Sort  (cost=26249781.06..26475232.38 rows=90180529 width=63)"
"                            Sort Key: np_39.firstname, np_39.middlename, (lower((np_39.secondname)::text))"
"                            ->  Result  (cost=0.00..4162348.29 rows=90180529 width=63)"
"                                  ->  Append  (cost=0.00..4162348.29 rows=90180529 width=63)"
"                                        ->  Seq Scan on person np_39  (cost=0.00..1.01 rows=1 width=108)"
"                                        ->  Seq Scan on person_a np_40  (cost=0.00..128304.80 rows=2774380 width=62)"
"                                        ->  Seq Scan on person_ani np_41  (cost=0.00..131198.13 rows=2883713 width=64)"
"                                        ->  Seq Scan on person_b np_42  (cost=0.00..107618.99 rows=2339799 width=62)"
"                                        ->  Seq Scan on person_before_a np_43  (cost=0.00..6276.55 rows=194755 width=25)"
"                                        ->  Seq Scan on person_bj np_44  (cost=0.00..95143.78 rows=2113978 width=61)"
"                                        ->  Seq Scan on person_ch np_45  (cost=0.00..50579.77 rows=1106477 width=61)"
"                                        ->  Seq Scan on person_d np_46  (cost=0.00..89875.80 rows=1891680 width=62)"
"                                        ->  Seq Scan on person_e np_47  (cost=0.00..91370.60 rows=1970260 width=60)"
"                                        ->  Seq Scan on person_f np_48  (cost=0.00..124432.03 rows=2700703 width=64)"
"                                        ->  Seq Scan on person_ga np_49  (cost=0.00..79674.47 rows=1707447 width=66)"
"                                        ->  Seq Scan on person_gak np_50  (cost=0.00..70813.38 rows=1552738 width=63)"
"                                        ->  Seq Scan on person_gam np_51  (cost=0.00..87713.80 rows=1903780 width=63)"
"                                        ->  Seq Scan on person_gb np_52  (cost=0.00..171576.74 rows=3729574 width=64)"
"                                        ->  Seq Scan on person_h np_53  (cost=0.00..124026.57 rows=2651557 width=65)"
"                                        ->  Seq Scan on person_han np_54  (cost=0.00..125328.80 rows=2701480 width=63)"
"                                        ->  Seq Scan on person_i np_55  (cost=0.00..135630.39 rows=2880139 width=61)"
"                                        ->  Seq Scan on person_ka np_56  (cost=0.00..127814.01 rows=2680101 width=62)"
"                                        ->  Seq Scan on person_kb np_57  (cost=0.00..129525.71 rows=2755471 width=62)"
"                                        ->  Seq Scan on person_kot np_58  (cost=0.00..119535.51 rows=2563451 width=62)"
"                                        ->  Seq Scan on person_ll np_59  (cost=0.00..91826.92 rows=1958392 width=60)"
"                                        ->  Seq Scan on person_ma np_60  (cost=0.00..123427.77 rows=2617077 width=61)"
"                                        ->  Seq Scan on person_mb np_61  (cost=0.00..121491.38 rows=2549838 width=64)"
"                                        ->  Seq Scan on person_mk np_62  (cost=0.00..137537.27 rows=2889427 width=65)"
"                                        ->  Seq Scan on person_n np_63  (cost=0.00..167442.77 rows=3614177 width=64)"
"                                        ->  Seq Scan on person_o np_64  (cost=0.00..98850.92 rows=2184492 width=60)"
"                                        ->  Seq Scan on person_pj np_65  (cost=0.00..78172.47 rows=1722547 width=62)"
"                                        ->  Seq Scan on person_r np_66  (cost=0.00..141720.37 rows=3221237 width=66)"
"                                        ->  Seq Scan on person_sa np_67  (cost=0.00..86264.40 rows=1873740 width=63)"
"                                        ->  Seq Scan on person_sal np_68  (cost=0.00..109139.92 rows=2344792 width=63)"
"                                        ->  Seq Scan on person_sb np_69  (cost=0.00..133134.63 rows=2923363 width=62)"
"                                        ->  Seq Scan on person_sche np_70  (cost=0.00..31609.92 rows=687392 width=59)"
"                                        ->  Seq Scan on person_sh np_71  (cost=0.00..97603.25 rows=2083125 width=65)"
"                                        ->  Seq Scan on person_shao np_72  (cost=0.00..105774.90 rows=2290090 width=63)"
"                                        ->  Seq Scan on person_sp np_73  (cost=0.00..131460.08 rows=3051708 width=64)"
"                                        ->  Seq Scan on person_t np_74  (cost=0.00..146056.83 rows=3185683 width=61)"
"                                        ->  Seq Scan on person_v np_75  (cost=0.00..135189.84 rows=2953284 width=61)"
"                                        ->  Seq Scan on person_ya np_76  (cost=0.00..59949.12 rows=1376412 width=60)"
"                                        ->  Seq Scan on person_z np_77  (cost=0.00..169254.69 rows=3552269 width=63)"


ЕПТСАМПЛАННАБОЕВОМ:
 
Код: sql
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"CTE Scan on wperson1  (cost=747.95..747.97 rows=1 width=8)"
"  CTE wperson0"
"    ->  HashAggregate  (cost=342.88..342.89 rows=1 width=54)"
"          CTE wdoc"
"            ->  HashAggregate  (cost=0.02..0.03 rows=1 width=0)"
"                  ->  Result  (cost=0.00..0.01 rows=1 width=0)"
"          ->  Nested Loop  (cost=0.00..342.84 rows=1 width=54)"
"                Join Filter: (doc.person_id = np.person_id)"
"                ->  CTE Scan on wdoc doc  (cost=0.00..0.02 rows=1 width=4)"
"                ->  Append  (cost=0.00..342.33 rows=39 width=63)"
"                      ->  Index Scan using person_pkey on person np  (cost=0.00..8.27 rows=1 width=108)"
"                            Index Cond: (person_id = doc.person_id)"
"                      ->  Index Scan using person_before_a_pkey on person_before_a np  (cost=0.00..8.33 rows=1 width=25)"
"                            Index Cond: (person_id = doc.person_id)"
"                      ->  Index Scan using person_v_pkey on person_v np  (cost=0.00..9.00 rows=1 width=61)"
"                            Index Cond: (person_id = doc.person_id)"
"                      ->  Index Scan using person_gb_pkey on person_gb np  (cost=0.00..9.33 rows=1 width=64)"
"                            Index Cond: (person_id = doc.person_id)"
"                      ->  Index Scan using person_d_pkey on person_d np  (cost=0.00..8.81 rows=1 width=62)"
"                            Index Cond: (person_id = doc.person_id)"
"                      ->  Index Scan using person_e_pkey on person_e np  (cost=0.00..8.84 rows=1 width=60)"
"                            Index Cond: (person_id = doc.person_id)"
"                      ->  Index Scan using person_z_pkey on person_z np  (cost=0.00..9.31 rows=1 width=63)"
"                            Index Cond: (person_id = doc.person_id)"
"                      ->  Index Scan using person_i_pkey on person_i np  (cost=0.00..9.10 rows=1 width=61)"
"                            Index Cond: (person_id = doc.person_id)"
"                      ->  Index Scan using person_ka_pkey on person_ka np  (cost=0.00..9.04 rows=1 width=62)"
"                            Index Cond: (person_id = doc.person_id)"
"                      ->  Index Scan using person_ll_pkey on person_ll np  (cost=0.00..8.84 rows=1 width=61)"
"                            Index Cond: (person_id = doc.person_id)"
"                      ->  Index Scan using person_ma_pkey on person_ma np  (cost=0.00..9.02 rows=1 width=61)"
"                            Index Cond: (person_id = doc.person_id)"
"                      ->  Index Scan using person_n_pkey on person_n np  (cost=0.00..9.30 rows=1 width=64)"
"                            Index Cond: (person_id = doc.person_id)"
"                      ->  Index Scan using person_r_pkey on person_r np  (cost=0.00..9.08 rows=1 width=66)"
"                            Index Cond: (person_id = doc.person_id)"
"                      ->  Index Scan using person_t_pkey on person_t np  (cost=0.00..9.17 rows=1 width=61)"
"                            Index Cond: (person_id = doc.person_id)"
"                      ->  Index Scan using person_f_pkey on person_f np  (cost=0.00..9.04 rows=1 width=64)"
"                            Index Cond: (person_id = doc.person_id)"
"                      ->  Index Scan using person_ch_pkey on person_ch np  (cost=0.00..8.58 rows=1 width=61)"
"                            Index Cond: (person_id = doc.person_id)"
"                      ->  Index Scan using person_sche_pkey on person_sche np  (cost=0.00..8.42 rows=1 width=59)"
"                            Index Cond: (person_id = doc.person_id)"
"                      ->  Index Scan using person_ya_pkey on person_ya np  (cost=0.00..8.63 rows=1 width=60)"
"                            Index Cond: (person_id = doc.person_id)"
"                      ->  Index Scan using person_ga_pkey on person_ga np  (cost=0.00..8.70 rows=1 width=66)"
"                            Index Cond: (person_id = doc.person_id)"
"                      ->  Index Scan using person_gak_pkey on person_gak np  (cost=0.00..8.44 rows=1 width=63)"
"                            Index Cond: (person_id = doc.person_id)"
"                      ->  Index Scan using person_gam_pkey on person_gam np  (cost=0.00..8.48 rows=1 width=63)"
"                            Index Cond: (person_id = doc.person_id)"
"                      ->  Index Scan using person_ani_pkey on person_ani np  (cost=0.00..8.58 rows=1 width=64)"
"                            Index Cond: (person_id = doc.person_id)"
"                      ->  Index Scan using person_a_pkey on person_a np  (cost=0.00..8.89 rows=1 width=62)"
"                            Index Cond: (person_id = doc.person_id)"
"                      ->  Index Scan using person_sb_pkey on person_sb np  (cost=0.00..9.10 rows=1 width=62)"
"                            Index Cond: (person_id = doc.person_id)"
"                      ->  Index Scan using person_sp_pkey on person_sp np  (cost=0.00..8.60 rows=1 width=64)"
"                            Index Cond: (person_id = doc.person_id)"
"                      ->  Index Scan using person_h_pkey on person_h np  (cost=0.00..8.87 rows=1 width=65)"
"                            Index Cond: (person_id = doc.person_id)"
"                      ->  Index Scan using person_han_pkey on person_han np  (cost=0.00..8.56 rows=1 width=63)"
"                            Index Cond: (person_id = doc.person_id)"
"                      ->  Index Scan using person_kb_pkey on person_kb np  (cost=0.00..8.94 rows=1 width=62)"
"                            Index Cond: (person_id = doc.person_id)"
"                      ->  Index Scan using person_kot_pkey on person_kot np  (cost=0.00..8.55 rows=1 width=62)"
"                            Index Cond: (person_id = doc.person_id)"
"                      ->  Index Scan using person_mb_pkey on person_mb np  (cost=0.00..8.85 rows=1 width=64)"
"                            Index Cond: (person_id = doc.person_id)"
"                      ->  Index Scan using person_mk_pkey on person_mk np  (cost=0.00..8.58 rows=1 width=65)"
"                            Index Cond: (person_id = doc.person_id)"
"                      ->  Index Scan using person_b_pkey on person_b np  (cost=0.00..8.84 rows=1 width=62)"
"                            Index Cond: (person_id = doc.person_id)"
"                      ->  Index Scan using person_bj_pkey on person_bj np  (cost=0.00..8.50 rows=1 width=62)"
"                            Index Cond: (person_id = doc.person_id)"
"                      ->  Index Scan using person_sa_pkey on person_sa np  (cost=0.00..8.70 rows=1 width=63)"
"                            Index Cond: (person_id = doc.person_id)"
"                      ->  Index Scan using person_sal_pkey on person_sal np  (cost=0.00..8.52 rows=1 width=63)"
"                            Index Cond: (person_id = doc.person_id)"
"                      ->  Index Scan using person_sh_pkey on person_sh np  (cost=0.00..8.74 rows=1 width=65)"
"                            Index Cond: (person_id = doc.person_id)"
"                      ->  Index Scan using person_shao_pkey on person_shao np  (cost=0.00..8.52 rows=1 width=63)"
"                            Index Cond: (person_id = doc.person_id)"
"                      ->  Index Scan using person_o_pkey on person_o np  (cost=0.00..8.77 rows=1 width=60)"
"                            Index Cond: (person_id = doc.person_id)"
"                      ->  Index Scan using person_pj_pkey on person_pj np  (cost=0.00..8.46 rows=1 width=62)"
"                            Index Cond: (person_id = doc.person_id)"
"  CTE wperson1"
"    ->  HashAggregate  (cost=405.05..405.06 rows=1 width=8)"
"          ->  Nested Loop  (cost=0.00..405.05 rows=1 width=8)"
"                Join Filter: (((np0.firstname)::text = (np.firstname)::text) AND ((np0.middlename)::text = (np.middlename)::text) AND (COALESCE(np0.birth_date, np.birth_date, '1000-10-10'::date) = COALESCE(np.birth_date, np0.birth_date, '1000-10-10'::date)) AND (lower((np0.secondname)::text) = lower((np.secondname)::text)))"
"                ->  CTE Scan on wperson0 np0  (cost=0.00..0.02 rows=1 width=100)"
"                ->  Append  (cost=0.00..404.05 rows=39 width=63)"
"                      ->  Index Scan using person_ix1 on person np  (cost=0.00..8.27 rows=1 width=108)"
"                            Index Cond: (((firstname)::text = (np0.firstname)::text) AND ((middlename)::text = (np0.middlename)::text))"
"                      ->  Index Scan using person_before_a_ix1 on person_before_a np  (cost=0.00..8.44 rows=1 width=25)"
"                            Index Cond: (((firstname)::text = (np0.firstname)::text) AND ((middlename)::text = (np0.middlename)::text))"
"                      ->  Index Scan using person_v_ix1 on person_v np  (cost=0.00..11.75 rows=1 width=61)"
"                            Index Cond: (((firstname)::text = (np0.firstname)::text) AND ((middlename)::text = (np0.middlename)::text))"
"                      ->  Index Scan using person_gb_ix1 on person_gb np  (cost=0.00..12.54 rows=1 width=64)"
"                            Index Cond: (((firstname)::text = (np0.firstname)::text) AND ((middlename)::text = (np0.middlename)::text))"
"                      ->  Index Scan using person_d_ix1 on person_d np  (cost=0.00..10.74 rows=1 width=62)"
"                            Index Cond: (((firstname)::text = (np0.firstname)::text) AND ((middlename)::text = (np0.middlename)::text))"
"                      ->  Index Scan using person_e_ix1 on person_e np  (cost=0.00..10.92 rows=1 width=60)"
"                            Index Cond: (((firstname)::text = (np0.firstname)::text) AND ((middlename)::text = (np0.middlename)::text))"
"                      ->  Index Scan using person_z_ix1 on person_z np  (cost=0.00..12.73 rows=1 width=63)"
"                            Index Cond: (((firstname)::text = (np0.firstname)::text) AND ((middlename)::text = (np0.middlename)::text))"
"                      ->  Index Scan using person_i_ix1 on person_i np  (cost=0.00..11.89 rows=1 width=61)"
"                            Index Cond: (((firstname)::text = (np0.firstname)::text) AND ((middlename)::text = (np0.middlename)::text))"
"                      ->  Index Scan using person_ka_ix1 on person_ka np  (cost=0.00..11.64 rows=1 width=62)"
"                            Index Cond: (((firstname)::text = (np0.firstname)::text) AND ((middlename)::text = (np0.middlename)::text))"
"                      ->  Index Scan using person_ll_ix1 on person_ll np  (cost=0.00..10.88 rows=1 width=61)"
"                            Index Cond: (((firstname)::text = (np0.firstname)::text) AND ((middlename)::text = (np0.middlename)::text))"
"                      ->  Index Scan using person_ma_ix1 on person_ma np  (cost=0.00..11.64 rows=1 width=61)"
"                            Index Cond: (((firstname)::text = (np0.firstname)::text) AND ((middlename)::text = (np0.middlename)::text))"
"                      ->  Index Scan using person_n_ix1 on person_n np  (cost=0.00..12.74 rows=1 width=64)"
"                            Index Cond: (((firstname)::text = (np0.firstname)::text) AND ((middlename)::text = (np0.middlename)::text))"
"                      ->  Index Scan using person_r_ix1 on person_r np  (cost=0.00..11.91 rows=1 width=66)"
"                            Index Cond: (((firstname)::text = (np0.firstname)::text) AND ((middlename)::text = (np0.middlename)::text))"
"                      ->  Index Scan using person_t_ix1 on person_t np  (cost=0.00..12.20 rows=1 width=61)"
"                            Index Cond: (((firstname)::text = (np0.firstname)::text) AND ((middlename)::text = (np0.middlename)::text))"
"                      ->  Index Scan using person_f_ix1 on person_f np  (cost=0.00..11.52 rows=1 width=64)"
"                            Index Cond: (((firstname)::text = (np0.firstname)::text) AND ((middlename)::text = (np0.middlename)::text))"
"                      ->  Index Scan using person_ch_ix1 on person_ch np  (cost=0.00..9.68 rows=1 width=61)"
"                            Index Cond: (((firstname)::text = (np0.firstname)::text) AND ((middlename)::text = (np0.middlename)::text))"
"                      ->  Index Scan using person_sche_ix1 on person_sche np  (cost=0.00..9.13 rows=1 width=59)"
"                            Index Cond: (((firstname)::text = (np0.firstname)::text) AND ((middlename)::text = (np0.middlename)::text))"
"                      ->  Index Scan using person_ya_ix1 on person_ya np  (cost=0.00..10.01 rows=1 width=60)"
"                            Index Cond: (((firstname)::text = (np0.firstname)::text) AND ((middlename)::text = (np0.middlename)::text))"
"                      ->  Index Scan using person_ga_ix1 on person_ga np  (cost=0.00..10.21 rows=1 width=66)"
"                            Index Cond: (((firstname)::text = (np0.firstname)::text) AND ((middlename)::text = (np0.middlename)::text))"
"                      ->  Index Scan using person_gak_ix1 on person_gak np  (cost=0.00..8.72 rows=1 width=63)"
"                            Index Cond: (((firstname)::text = (np0.firstname)::text) AND ((middlename)::text = (np0.middlename)::text))"
"                      ->  Index Scan using person_gam_ix1 on person_gam np  (cost=0.00..8.83 rows=1 width=63)"
"                            Index Cond: (((firstname)::text = (np0.firstname)::text) AND ((middlename)::text = (np0.middlename)::text))"
"                      ->  Index Scan using person_ani_ix1 on person_ani np  (cost=0.00..9.12 rows=1 width=64)"
"                            Index Cond: (((firstname)::text = (np0.firstname)::text) AND ((middlename)::text = (np0.middlename)::text))"
"                      ->  Index Scan using person_a_ix1 on person_a np  (cost=0.00..11.62 rows=1 width=62)"
"                            Index Cond: (((firstname)::text = (np0.firstname)::text) AND ((middlename)::text = (np0.middlename)::text))"
"                      ->  Index Scan using person_sb_ix1 on person_sb np  (cost=0.00..11.60 rows=1 width=62)"
"                            Index Cond: (((firstname)::text = (np0.firstname)::text) AND ((middlename)::text = (np0.middlename)::text))"
"                      ->  Index Scan using person_sp_ix1 on person_sp np  (cost=0.00..9.23 rows=1 width=64)"
"                            Index Cond: (((firstname)::text = (np0.firstname)::text) AND ((middlename)::text = (np0.middlename)::text))"
"                      ->  Index Scan using person_h_ix1 on person_h np  (cost=0.00..10.13 rows=1 width=65)"
"                            Index Cond: (((firstname)::text = (np0.firstname)::text) AND ((middlename)::text = (np0.middlename)::text))"
"                      ->  Index Scan using person_han_ix1 on person_han np  (cost=0.00..9.06 rows=1 width=63)"
"                            Index Cond: (((firstname)::text = (np0.firstname)::text) AND ((middlename)::text = (np0.middlename)::text))"
"                      ->  Index Scan using person_kb_ix1 on person_kb np  (cost=0.00..11.40 rows=1 width=62)"
"                            Index Cond: (((firstname)::text = (np0.firstname)::text) AND ((middlename)::text = (np0.middlename)::text))"
"                      ->  Index Scan using person_kot_ix1 on person_kot np  (cost=0.00..9.03 rows=1 width=62)"
"                            Index Cond: (((firstname)::text = (np0.firstname)::text) AND ((middlename)::text = (np0.middlename)::text))"
"                      ->  Index Scan using person_mb_ix1 on person_mb np  (cost=0.00..11.22 rows=1 width=64)"
"                            Index Cond: (((firstname)::text = (np0.firstname)::text) AND ((middlename)::text = (np0.middlename)::text))"
"                      ->  Index Scan using person_mk_ix1 on person_mk np  (cost=0.00..9.12 rows=1 width=65)"
"                            Index Cond: (((firstname)::text = (np0.firstname)::text) AND ((middlename)::text = (np0.middlename)::text))"
"                      ->  Index Scan using person_b_ix1 on person_b np  (cost=0.00..11.12 rows=1 width=62)"
"                            Index Cond: (((firstname)::text = (np0.firstname)::text) AND ((middlename)::text = (np0.middlename)::text))"
"                      ->  Index Scan using person_bj_ix1 on person_bj np  (cost=0.00..8.90 rows=1 width=62)"
"                            Index Cond: (((firstname)::text = (np0.firstname)::text) AND ((middlename)::text = (np0.middlename)::text))"
"                      ->  Index Scan using person_sa_ix1 on person_sa np  (cost=0.00..9.61 rows=1 width=63)"
"                            Index Cond: (((firstname)::text = (np0.firstname)::text) AND ((middlename)::text = (np0.middlename)::text))"
"                      ->  Index Scan using person_sal_ix1 on person_sal np  (cost=0.00..8.96 rows=1 width=63)"
"                            Index Cond: (((firstname)::text = (np0.firstname)::text) AND ((middlename)::text = (np0.middlename)::text))"
"                      ->  Index Scan using person_sh_ix1 on person_sh np  (cost=0.00..9.72 rows=1 width=65)"
"                            Index Cond: (((firstname)::text = (np0.firstname)::text) AND ((middlename)::text = (np0.middlename)::text))"
"                      ->  Index Scan using person_shao_ix1 on person_shao np  (cost=0.00..8.95 rows=1 width=63)"
"                            Index Cond: (((firstname)::text = (np0.firstname)::text) AND ((middlename)::text = (np0.middlename)::text))"
"                      ->  Index Scan using person_o_ix1 on person_o np  (cost=0.00..10.06 rows=1 width=60)"
"                            Index Cond: (((firstname)::text = (np0.firstname)::text) AND ((middlename)::text = (np0.middlename)::text))"
"                      ->  Index Scan using person_pj_ix1 on person_pj np  (cost=0.00..8.78 rows=1 width=62)"
"                            Index Cond: (((firstname)::text = (np0.firstname)::text) AND ((middlename)::text = (np0.middlename)::text))"

...
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18.08.2015, 11:09
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разные планы выполнения на боевой и развернутой тестовой бд. причины?
    #39031487
Alexius
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Alexius
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Legushka,

попробуйте явно указать планировщику сколько строк в wdoc:

так:
Код: sql
1.
with wdoc as (values (80404130),(80404134))


либо так (+стоит использовать distinct on (pk/unique field) если это возможно, чтобы не сортировать результат):
Код: sql
1.
2.
with 	Wperson0 as ( -- ФИО взятое из документа (в одном доке участвует два участника)
		select distinct np.firstname, np.middlename, np.secondname, np.birth_date from Wdoc doc where doc.person_id = any(array[80404130,80404134]),
...
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18.08.2015, 12:20
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разные планы выполнения на боевой и развернутой тестовой бд. причины?
    #39031611
Ivan Durak
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Ivan Durak
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ну дык на тесте он решил что пардон затратно делать 9 мильенов индекс сиков.
Проще один скан и сорт.
Вот статистика на тесте по wperson0:
CTE Scan on wperson0 np0 (cost=0.00..180361.06 rows=9018053 width=100)"


А вот на бою:
CTE Scan on wperson0 np0 (cost=0.00..0.02 rows=1 width=100)"

Либо такое разное количество записей, либо статистика недостоверная
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18.08.2015, 14:07
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разные планы выполнения на боевой и развернутой тестовой бд. причины?
    #39031678
Фотография Legushka
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Legushka
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Ivan, один запрос выполняется за 240-2000ms
на тестовом бесконечно долго
каждая партиция содержит 1-4млн записей

на боевом и на тестовом количество примерно одинаковое

неужели оперативка определяет как выполнять запрос?
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18.08.2015, 14:54
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разные планы выполнения на боевой и развернутой тестовой бд. причины?
    #39031699
Фотография Maxim Boguk
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Maxim Boguk
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LegushkaIvan, один запрос выполняется за 240-2000ms
на тестовом бесконечно долго
каждая партиция содержит 1-4млн записей

на боевом и на тестовом количество примерно одинаковое

неужели оперативка определяет как выполнять запрос?

Наиболее вероятные варианты:
1)разные настройки базы на боевом и тестовом
2)на тестовом почему то нет нужных индексов
3)разные major версии базы на боевом и тестовом

Учитывая что вывод explain несколько отличается в части

автор" CTE wdoc"
" -> HashAggregate (cost=0.76..1.26 rows=100 width=0)"
" Group Key: unnest('{80404130,80404134}'::integer[])"
" -> Result (cost=0.00..0.51 rows=100 width=0)"


vs
автор" CTE wdoc"
" -> HashAggregate (cost=0.02..0.03 rows=1 width=0)"
" -> Result (cost=0.00..0.01 rows=1 width=0)"


я склоняюсь в варианту 3 (и/или похаченому ROWS у функции unnest на боевом сервере).

Приведите вывод
Код: plaintext
explain analyze select * from  unnest(ARRAY[80404130,80404134]);
на тестовой и боевой базе.



--
Maxim Boguk
www.postgresql-consulting.ru
...
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18.08.2015, 15:06
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разные планы выполнения на боевой и развернутой тестовой бд. причины?
    #39031758
Фотография Legushka
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Legushka
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Maxim Bogukя склоняюсь в варианту 3 (и/или похаченому ROWS у функции unnest на боевом сервере).
вы правы:
Т: "PostgreSQL 9.4.4 on x86_64-unknown-linux-gnu, compiled by gcc (GCC) 4.8.3 20140911 (Red Hat 4.8.3-9), 64-bit"
Б: "PostgreSQL 9.1.18 on x86_64-unknown-linux-gnu, compiled by gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-11), 64-bit"
--
Maxim BogukПриведите вывод
explain analyze select * from unnest(ARRAY[80404130,80404134]);
на тестовой и боевой базе.

Т:
 
"Function Scan on unnest (cost=0.00..1.00 rows=100 width=4) (actual time=0.097..0.100 rows=2 loops=1)"
"Planning time: 0.145 ms"
"Execution time: 0.161 ms"

Б:
 
"Function Scan on unnest (cost=0.00..1.00 rows=100 width=4) (actual time=0.032..0.033 rows=2 loops=1)"
"Total runtime: 0.068 ms"

получается что на очень старом постгресе БД работает быстрее?
...
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18.08.2015, 16:20
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разные планы выполнения на боевой и развернутой тестовой бд. причины?
    #39031762
Фотография Legushka
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Legushka
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Maxim Boguk , спасибо, избавилася от этой функции и на тестовой стало работать по индексам
...
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18.08.2015, 16:24
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разные планы выполнения на боевой и развернутой тестовой бд. причины?
    #39031780
qwwq
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qwwq
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на тесте, т.к. 9.4. можно пофантазировать сюда:
 
Код: sql
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with
Wperson0 as ( -- ФИО взятое из документа (в одном доке участвует два участника)
	with Wdoc as (SELECT * FROM (select distinct unnest(ARRAY[80404130,80404134]) as person_id ) foo LIMIT 2 -- всегда не больше 2 ? -- так и скажите планёру
		)
	--select distinct np.firstname, np.middlename, np.secondname, np.birth_date from Wdoc doc inner join ibd.person np on np.person_id = doc.person_id
	SELECT DISTINCT --только если оба дока -- одна морда лица
		np.firstname, np.middlename, np.secondname, np.birth_date from Wdoc doc
	FROM Wdoc
	,LATERAL (SELECT np.firstname, np.middlename, np.secondname, np.birth_date from ibd.person np WHERE np.person_id = doc.person_id 
		ORDER BY np.person_id LIMIT 1) np -- навязываем однократный seek по каждому person_id из 2-х
	),

Wperson1 as ( -- все совпадения ФИО + дата, дата может быть не указана
	select /*distinct*/ np.person_id -- сдаётся -- это pk
	from Wperson0 np0 
	inner join
	FROM ibd.person np on 
		np0.firstname = np.firstname and 
		np0.middlename=np.middlename and 
		lower(np0.secondname)=lower(np.secondname) and 
		--coalesce(np0.birth_date,np.birth_date,'1000-10-10')=coalesce(np.birth_date,np0.birth_date,'1000-10-10')) -- за такое -- убивать
		AND ((np0.birth_date = np.birth_date) OR (np0.birth_date IS NULL AND np.birth_date IS NULL))
		-- какие тут есть [составные/ф-ые]индексы ? -- вот тут можно немного покопаться
	)
select * from Wperson1



и вообще -- любовь к дистинктам на мильонных табличках -- это что-то.

в бою, к сожалению, "лейтерал" не скажешь
...
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18.08.2015, 16:40
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