explain.depesz.com

PostgreSQL's explain analyze made readable

Result: bFhr

Settings
# exclusive inclusive rows x rows loops node
1. 9.311 1,891.620 ↓ 69.4 3,400 1

Sort (cost=9,423.53..9,423.66 rows=49 width=1,338) (actual time=1,891.467..1,891.620 rows=3,400 loops=1)

  • Sort Key: cr.combination_id, sr.slider_id
  • Sort Method: quicksort Memory: 1000kB
  • Buffers: shared hit=56987
2. 5.857 1,882.309 ↓ 69.4 3,400 1

Nested Loop Left Join (cost=35.86..9,422.16 rows=49 width=1,338) (actual time=44.042..1,882.309 rows=3,400 loops=1)

  • Join Filter: ((p.period_id = sr.period_id) AND ((sl.id)::numeric = cs.slider_id) AND ((sl.file_id)::numeric = cs.file_id))
  • Buffers: shared hit=56984
3. 0.430 1,873.052 ↓ 69.4 3,400 1

Nested Loop Left Join (cost=35.86..8,052.26 rows=49 width=1,250) (actual time=40.000..1,873.052 rows=3,400 loops=1)

  • Join Filter: ((dch.file_id = di.file_id) AND (dch.combination_id = (cr.combination_id)::numeric))
  • Buffers: shared hit=56648
4. 964.429 1,831.822 ↓ 69.4 3,400 1

Nested Loop Left Join (cost=35.86..3,125.88 rows=49 width=1,234) (actual time=1.030..1,831.822 rows=3,400 loops=1)

  • Join Filter: ((cs.combination_id = (cr.combination_id)::numeric) AND (cs.slider_id = (sr.slider_id)::numeric))
  • Rows Removed by Join Filter: 4035800
  • Buffers: shared hit=54437
5. 2.877 3.793 ↓ 69.4 3,400 1

Hash Right Join (cost=35.44..253.13 rows=49 width=1,216) (actual time=0.351..3.793 rows=3,400 loops=1)

  • Hash Cond: ((sr.analysis_id = a.id) AND (sr.combination_id = cr.combination_id))
  • Buffers: shared hit=37
6. 0.632 0.632 ↑ 1.0 680 1

Index Scan using idx_slider_result_a_id on slider_result sr (cost=0.42..200.32 rows=692 width=31) (actual time=0.057..0.632 rows=680 loops=1)

  • Index Cond: (analysis_id = 1349)
  • Buffers: shared hit=21
7. 0.016 0.284 ↓ 2.5 20 1

Hash (cost=34.90..34.90 rows=8 width=1,189) (actual time=0.284..0.284 rows=20 loops=1)

  • Buckets: 1024 Batches: 1 Memory Usage: 12kB
  • Buffers: shared hit=16
8. 0.014 0.268 ↓ 2.5 20 1

Nested Loop Left Join (cost=15.04..34.90 rows=8 width=1,189) (actual time=0.248..0.268 rows=20 loops=1)

  • Join Filter: (a.id = cr.analysis_id)
  • Buffers: shared hit=16
9. 0.053 0.179 ↑ 1.0 1 1

Hash Right Join (cost=14.76..18.22 rows=1 width=642) (actual time=0.171..0.179 rows=1 loops=1)

  • Hash Cond: ((di.id)::numeric = d.label_id)
  • Buffers: shared hit=13
10. 0.013 0.013 ↑ 1.0 97 1

Seq Scan on dictionary_import di (cost=0.00..2.97 rows=97 width=23) (actual time=0.007..0.013 rows=97 loops=1)

  • Buffers: shared hit=2
11. 0.011 0.113 ↑ 1.0 1 1

Hash (cost=14.74..14.74 rows=1 width=623) (actual time=0.113..0.113 rows=1 loops=1)

  • Buckets: 1024 Batches: 1 Memory Usage: 9kB
  • Buffers: shared hit=8
12. 0.030 0.102 ↑ 1.0 1 1

Hash Right Join (cost=8.30..14.74 rows=1 width=623) (actual time=0.097..0.102 rows=1 loops=1)

  • Hash Cond: (d.id = a.dataset_id)
  • Buffers: shared hit=8
13. 0.039 0.039 ↓ 1.0 109 1

Seq Scan on dictionary_dataset d (cost=0.00..6.04 rows=104 width=525) (actual time=0.018..0.039 rows=109 loops=1)

  • Buffers: shared hit=5
14. 0.005 0.033 ↑ 1.0 1 1

Hash (cost=8.29..8.29 rows=1 width=102) (actual time=0.033..0.033 rows=1 loops=1)

  • Buckets: 1024 Batches: 1 Memory Usage: 9kB
  • Buffers: shared hit=3
15. 0.028 0.028 ↑ 1.0 1 1

Index Scan using idx_analysis_id on analysis a (cost=0.28..8.29 rows=1 width=102) (actual time=0.027..0.028 rows=1 loops=1)

  • Index Cond: (id = 1349)
  • Buffers: shared hit=3
16. 0.075 0.075 ↓ 2.5 20 1

Index Scan using idx_comb_result_a_id on combination_result cr (cost=0.29..16.58 rows=8 width=551) (actual time=0.071..0.075 rows=20 loops=1)

  • Index Cond: (analysis_id = 1349)
  • Buffers: shared hit=3
17. 863.600 863.600 ↓ 1.6 1,188 3,400

Index Scan using idx_dict_comb_slider_file_id on dictionary_combination_slider cs (cost=0.42..43.95 rows=734 width=24) (actual time=0.011..0.254 rows=1,188 loops=3,400)

  • Index Cond: (di.file_id = file_id)
  • Buffers: shared hit=54400
18. 1.848 40.800 ↓ 0.0 0 3,400

Materialize (cost=0.00..4,925.40 rows=1 width=26) (actual time=0.012..0.012 rows=0 loops=3,400)

  • Buffers: shared hit=2211
19. 38.952 38.952 ↓ 0.0 0 1

Seq Scan on dictionary_combination_headers dch (cost=0.00..4,925.40 rows=1 width=26) (actual time=38.952..38.952 rows=0 loops=1)

  • Filter: (language_id = 1)
  • Rows Removed by Filter: 217152
  • Buffers: shared hit=2211
20. 0.000 3.400 ↓ 0.0 0 3,400

Materialize (cost=0.00..1,368.31 rows=1 width=110) (actual time=0.001..0.001 rows=0 loops=3,400)

  • Buffers: shared hit=336
21. 0.000 3.991 ↓ 0.0 0 1

Nested Loop (cost=0.00..1,368.31 rows=1 width=110) (actual time=3.991..3.991 rows=0 loops=1)

  • Join Filter: ((sl.file_id = p.file_id) AND (sl.granulation_type_id = p.type_id))
  • Buffers: shared hit=336
22. 0.002 3.991 ↓ 0.0 0 1

Nested Loop (cost=0.00..572.20 rows=1 width=115) (actual time=3.991..3.991 rows=0 loops=1)

  • Join Filter: ((sl.file_id)::numeric = ff.file_id)
  • Buffers: shared hit=336
23. 3.989 3.989 ↓ 0.0 0 1

Seq Scan on dictionary_slider sl (cost=0.00..568.98 rows=1 width=115) (actual time=3.989..3.989 rows=0 loops=1)

  • Filter: (language_id = 1)
  • Rows Removed by Filter: 18619
  • Buffers: shared hit=336
24. 0.000 0.000 ↓ 0.0 0

Seq Scan on dictionary_import ff (cost=0.00..3.21 rows=1 width=5) (never executed)

  • Filter: (id = 123)
25. 0.000 0.000 ↓ 0.0 0

Seq Scan on dictionary_period p (cost=0.00..796.09 rows=1 width=17) (never executed)