explain.depesz.com

PostgreSQL's explain analyze made readable

Result: UeG

Settings
# exclusive inclusive rows x rows loops node
1. 0.000 0.000 ↓ 0.0
→

Limit (cost=637.18..637.20 rows=10 width=685) (actual rows= loops=)

2. 0.000 0.000 ↓ 0.0
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Sort (cost=637.18..646.16 rows=3,595 width=685) (actual rows= loops=)

  • Sort Key: dossier.code_dossier
3. 0.000 0.000 ↓ 0.0
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HashAggregate (cost=523.54..559.49 rows=3,595 width=685) (actual rows= loops=)

  • Group Key: dossier.code_dossier, dossier.id, projet.nom, composante.nom, dossier.date_creation, sd.description
4. 0.000 0.000 ↓ 0.0
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HashAggregate (cost=433.66..469.61 rows=3,595 width=685) (actual rows= loops=)

  • Group Key: dossier.code_dossier, projet.nom, composante.nom, sd.description, dossier.date_creation, dossier.id
5. 0.000 0.000 ↓ 0.0
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Hash Anti Join (cost=91.19..343.39 rows=6,018 width=685) (actual rows= loops=)

  • Hash Cond: (oua.unite_administrative_id = ua.id)
6. 0.000 0.000 ↓ 0.0
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Hash Right Join (cost=87.77..241.41 rows=12,037 width=689) (actual rows= loops=)

  • Hash Cond: (question.section_id = section.id)
7. 0.000 0.000 ↓ 0.0
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Hash Right Join (cost=22.17..39.06 rows=452 width=8) (actual rows= loops=)

  • Hash Cond: (oua.question_id = question.id)
8. 0.000 0.000 ↓ 0.0
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Seq Scan on objet_unite_administrative oua (cost=0.00..12.90 rows=290 width=8) (actual rows= loops=)

9. 0.000 0.000 ↓ 0.0
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Hash (cost=16.52..16.52 rows=452 width=8) (actual rows= loops=)

10. 0.000 0.000 ↓ 0.0
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Seq Scan on question (cost=0.00..16.52 rows=452 width=8) (actual rows= loops=)

11. 0.000 0.000 ↓ 0.0
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Hash (cost=56.61..56.61 rows=719 width=689) (actual rows= loops=)

12. 0.000 0.000 ↓ 0.0
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Hash Join (cost=10.46..56.61 rows=719 width=689) (actual rows= loops=)

  • Hash Cond: (dossier.auteur_id = utilisateur.id)
13. 0.000 0.000 ↓ 0.0
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Hash Join (cost=7.26..43.53 rows=719 width=693) (actual rows= loops=)

  • Hash Cond: ((dossier.composante_id = composante.id) AND (dossier.questionnaire_id = qst.id) AND (dossier.statut_dossier_id = sd.id))
14. 0.000 0.000 ↓ 0.0
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Seq Scan on dossier (cost=0.00..20.99 rows=719 width=51) (actual rows= loops=)

  • Filter: (projet_id = 13)
15. 0.000 0.000 ↓ 0.0
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Hash (cost=7.18..7.18 rows=5 width=678) (actual rows= loops=)

16. 0.000 0.000 ↓ 0.0
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Nested Loop (cost=2.42..7.18 rows=5 width=678) (actual rows= loops=)

17. 0.000 0.000 ↓ 0.0
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Nested Loop (cost=2.42..6.08 rows=1 width=456) (actual rows= loops=)

18. 0.000 0.000 ↓ 0.0
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Nested Loop (cost=2.42..5.05 rows=1 width=234) (actual rows= loops=)

19. 0.000 0.000 ↓ 0.0
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Hash Join (cost=2.42..4.03 rows=1 width=12) (actual rows= loops=)

  • Hash Cond: (eu.enquete_id = qst.enquete_id)
20. 0.000 0.000 ↓ 0.0
→

Seq Scan on enquete_utilisateur eu (cost=0.00..1.44 rows=44 width=4) (actual rows= loops=)

21. 0.000 0.000 ↓ 0.0
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Hash (cost=2.40..2.40 rows=1 width=16) (actual rows= loops=)

22. 0.000 0.000 ↓ 0.0
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Hash Join (cost=1.02..2.40 rows=1 width=16) (actual rows= loops=)

  • Hash Cond: (section.questionnaire_id = qst.id)
23. 0.000 0.000 ↓ 0.0
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Seq Scan on section (cost=0.00..1.27 rows=27 width=8) (actual rows= loops=)

24. 0.000 0.000 ↓ 0.0
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Hash (cost=1.01..1.01 rows=1 width=8) (actual rows= loops=)

25. 0.000 0.000 ↓ 0.0
→

Seq Scan on questionnaire qst (cost=0.00..1.01 rows=1 width=8) (actual rows= loops=)

26. 0.000 0.000 ↓ 0.0
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Seq Scan on projet (cost=0.00..1.01 rows=1 width=222) (actual rows= loops=)

  • Filter: (id = 13)
27. 0.000 0.000 ↓ 0.0
→

Seq Scan on composante (cost=0.00..1.01 rows=1 width=226) (actual rows= loops=)

  • Filter: (projet_id = 13)
28. 0.000 0.000 ↓ 0.0
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Seq Scan on statut_dossier sd (cost=0.00..1.05 rows=5 width=222) (actual rows= loops=)

29. 0.000 0.000 ↓ 0.0
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Hash (cost=2.53..2.53 rows=53 width=4) (actual rows= loops=)

30. 0.000 0.000 ↓ 0.0
→

Seq Scan on utilisateur (cost=0.00..2.53 rows=53 width=4) (actual rows= loops=)

31. 0.000 0.000 ↓ 0.0
→

Hash (cost=3.19..3.19 rows=19 width=4) (actual rows= loops=)

32. 0.000 0.000 ↓ 0.0
→

Seq Scan on unite_administrative ua (cost=0.00..3.19 rows=19 width=4) (actual rows= loops=)