explain.depesz.com

PostgreSQL's explain analyze made readable

Result: 27c : Optimization for: Optimization for: Optimization for: Optimization for: Optimization for: plan #gWgH; plan #lj5Ms; plan #B8eq; plan #Yty9; plan #Lheu

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Optimization path:

Optimization(s) for this plan:

# exclusive inclusive rows x rows loops node
1. 0.020 74.790 ↑ 1.5 166 1

Limit (cost=34,425.75..34,443.25 rows=250 width=554) (actual time=74.365..74.790 rows=166 loops=1)

2. 0.376 74.770 ↑ 59.2 166 1

Unique (cost=34,425.75..35,113.78 rows=9,829 width=554) (actual time=74.364..74.770 rows=166 loops=1)

3. 0.361 74.394 ↑ 59.2 166 1

Sort (cost=34,425.75..34,450.32 rows=9,829 width=554) (actual time=74.363..74.394 rows=166 loops=1)

  • Sort Key: lima_delta1.mike_seven, lima_delta1.november_seven, lima_delta1.quebec_seven, lima_delta1.juliet_delta, lima_delta1.oscar_four, lima_delta1.foxtrot_bravo, lima_delta1.golf_echo, lima_delta1.zulu_alpha, lima_delta1.november_romeo, romeo_three1.three, romeo_three1.six_xray, kilo_foxtrot1.quebec_seven, kilo_foxtrot1.juliet_delta, kilo_foxtrot1.three, kilo_foxtrot2.quebec_seven, kilo_foxtrot2.juliet_delta, kilo_foxtrot2.three, alpha_seven1.three, alpha_seven1.yankee_tango, uniform_delta1.quebec_seven, uniform_delta1.juliet_delta, uniform_delta1.three, papa_kilo1.whiskey_zulu, echo_seven1.victor_five, ((zulu_uniform1.oscar_sierra five_romeo NOT NULL)), (six_uniform(0, alpha_oscar1.six_uniform, lima_delta1.foxtrot_bravo, LOCALTIMESTAMP, lima_delta1.mike_seven)), ((six_uniform(1, alpha_oscar1.six_uniform, lima_delta1.foxtrot_bravo, LOCALTIMESTAMP, lima_delta1.mike_seven))::boolean)
  • Sort Method: quicksort Memory: 147kB
4. 14.985 74.033 ↑ 59.2 166 1

Hash Left Join (cost=2,339.12..33,773.95 rows=9,829 width=554) (actual time=15.787..74.033 rows=166 loops=1)

  • Hash Cond: (echo_seven1.delta_kilo = alpha_seven1.quebec_seven)
5. 0.117 58.160 ↑ 59.2 166 1

Hash Left Join (cost=2,064.61..28,460.78 rows=9,829 width=1,134) (actual time=14.837..58.160 rows=166 loops=1)

  • Hash Cond: (echo_seven1.four_delta = kilo_foxtrot2.quebec_seven)
6. 0.102 57.321 ↑ 59.2 166 1

Nested Loop Left Join (cost=1,859.31..28,229.57 rows=9,829 width=1,073) (actual time=14.106..57.321 rows=166 loops=1)

7. 0.116 56.057 ↑ 58.6 166 1

Hash Left Join (cost=1,858.88..9,161.07 rows=9,727 width=1,049) (actual time=14.086..56.057 rows=166 loops=1)

  • Hash Cond: (lima_delta1.quebec_seven = zulu_uniform1.sierra_foxtrot)
8. 0.160 53.653 ↑ 58.6 166 1

Hash Left Join (cost=1,366.94..8,620.46 rows=9,727 width=382) (actual time=11.784..53.653 rows=166 loops=1)

  • Hash Cond: ((kilo_foxtrot1.quebec_seven = alpha_oscar1.uniform_bravo) AND (lima_delta1.juliet_hotel = alpha_oscar1.foxtrot_charlie))
9. 0.147 50.027 ↑ 58.6 166 1

Hash Left Join (cost=1,031.57..8,234.01 rows=9,727 width=354) (actual time=8.299..50.027 rows=166 loops=1)

  • Hash Cond: (lima_delta1.lima_echo = kilo_foxtrot1.quebec_seven)
10. 0.142 46.293 ↑ 58.6 166 1

Hash Left Join (cost=424.00..7,600.89 rows=9,727 width=295) (actual time=4.692..46.293 rows=166 loops=1)

  • Hash Cond: (lima_delta1.two = papa_kilo1.quebec_seven)
11. 0.104 41.938 ↑ 58.6 166 1

Hash Left Join (cost=80.87..7,232.21 rows=9,727 width=284) (actual time=0.465..41.938 rows=166 loops=1)

  • Hash Cond: (lima_delta1.four_sierra = romeo_three1.quebec_seven)
12. 0.102 41.820 ↑ 58.6 166 1

Hash Left Join (cost=79.58..7,197.07 rows=9,727 width=275) (actual time=0.446..41.820 rows=166 loops=1)

  • Hash Cond: (lima_delta1.juliet_hotel = uniform_delta1.quebec_seven)
13. 3.878 41.358 ↑ 58.6 166 1

Hash Left Join (cost=1.65..7,093.32 rows=9,727 width=179) (actual time=0.081..41.358 rows=166 loops=1)

  • Hash Cond: (lima_delta1.juliet_hotel = india1.quebec_hotel)
  • Filter: ((lima_delta1.juliet_hotel = 81) OR (india1.yankee_zulu = 81))
  • Rows Removed by Filter: 17,631
14. 37.467 37.467 ↑ 1.7 17,797 1

Index Scan using papa_yankee on foxtrot_romeo quebec_sierra (cost=0.56..6,975.07 rows=29,909 width=179) (actual time=0.034..37.467 rows=17,797 loops=1)

  • Index Cond: ((lima_romeo)::text = 'quebec_quebec'::text)
  • Filter: ((NOT papa_bravo) OR (papa_bravo five_romeo NULL))
  • Rows Removed by Filter: 9,402
15. 0.003 0.013 ↑ 1.0 3 1

Hash (cost=1.05..1.05 rows=3 width=16) (actual time=0.012..0.013 rows=3 loops=1)

  • Buckets: 1,024 Batches: 1 Memory Usage: 9kB
16. 0.010 0.010 ↑ 1.0 3 1

Seq Scan on hotel_three romeo_foxtrot (cost=0.00..1.05 rows=3 width=16) (actual time=0.007..0.010 rows=3 loops=1)

  • Filter: ((juliet_charlie)::text = 'kilo_papa'::text)
  • Rows Removed by Filter: 1
17. 0.109 0.360 ↑ 1.0 397 1

Hash (cost=72.97..72.97 rows=397 width=96) (actual time=0.359..0.360 rows=397 loops=1)

  • Buckets: 1,024 Batches: 1 Memory Usage: 58kB
18. 0.251 0.251 ↑ 1.0 397 1

Seq Scan on echo_zulu mike_quebec (cost=0.00..72.97 rows=397 width=96) (actual time=0.005..0.251 rows=397 loops=1)

19. 0.005 0.014 ↑ 1.0 13 1

Hash (cost=1.13..1.13 rows=13 width=25) (actual time=0.014..0.014 rows=13 loops=1)

  • Buckets: 1,024 Batches: 1 Memory Usage: 9kB
20. 0.009 0.009 ↑ 1.0 13 1

Seq Scan on tango four_uniform (cost=0.00..1.13 rows=13 width=25) (actual time=0.006..0.009 rows=13 loops=1)

21. 1.976 4.213 ↓ 1.0 8,167 1

Hash (cost=241.39..241.39 rows=8,139 width=27) (actual time=4.212..4.213 rows=8,167 loops=1)

  • Buckets: 8,192 Batches: 1 Memory Usage: 569kB
22. 2.237 2.237 ↓ 1.0 8,167 1

Seq Scan on golf_five uniform_romeo (cost=0.00..241.39 rows=8,139 width=27) (actual time=0.005..2.237 rows=8,167 loops=1)

23. 1.359 3.587 ↑ 1.0 5,181 1

Hash (cost=542.81..542.81 rows=5,181 width=67) (actual time=3.586..3.587 rows=5,181 loops=1)

  • Buckets: 8,192 Batches: 1 Memory Usage: 569kB
24. 2.228 2.228 ↑ 1.0 5,181 1

Seq Scan on sierra_three whiskey_six (cost=0.00..542.81 rows=5,181 width=67) (actual time=0.006..2.228 rows=5,181 loops=1)

25. 1.473 3.466 ↓ 1.0 5,539 1

Hash (cost=252.95..252.95 rows=5,495 width=52) (actual time=3.465..3.466 rows=5,539 loops=1)

  • Buckets: 8,192 Batches: 1 Memory Usage: 501kB
26. 1.993 1.993 ↓ 1.0 5,539 1

Seq Scan on delta_alpha five_xray (cost=0.00..252.95 rows=5,495 width=52) (actual time=0.011..1.993 rows=5,539 loops=1)

27. 1.037 2.288 ↑ 1.0 2,541 1

Hash (cost=459.75..459.75 rows=2,575 width=675) (actual time=2.287..2.288 rows=2,541 loops=1)

  • Buckets: 4,096 Batches: 1 Memory Usage: 1,354kB
28. 1.251 1.251 ↑ 1.0 2,541 1

Seq Scan on juliet_november romeo_kilo (cost=0.00..459.75 rows=2,575 width=675) (actual time=0.008..1.251 rows=2,541 loops=1)

29. 1.162 1.162 ↑ 1.0 1 166

Index Scan using charlie on uniform_kilo victor_romeo (cost=0.43..1.95 rows=1 width=32) (actual time=0.006..0.007 rows=1 loops=166)

  • Index Cond: (sierra_foxtrot = lima_delta1.quebec_seven)
30. 0.235 0.722 ↑ 1.0 902 1

Hash (cost=194.02..194.02 rows=902 width=69) (actual time=0.721..0.722 rows=902 loops=1)

  • Buckets: 1,024 Batches: 1 Memory Usage: 98kB
31. 0.487 0.487 ↑ 1.0 902 1

Seq Scan on oscar_oscar yankee_xray (cost=0.00..194.02 rows=902 width=69) (actual time=0.008..0.487 rows=902 loops=1)

32. 0.308 0.888 ↓ 1.0 1,193 1

Hash (cost=259.78..259.78 rows=1,178 width=41) (actual time=0.887..0.888 rows=1,193 loops=1)

  • Buckets: 2,048 Batches: 1 Memory Usage: 107kB
33. 0.580 0.580 ↓ 1.0 1,193 1

Seq Scan on whiskey_tango hotel_golf (cost=0.00..259.78 rows=1,178 width=41) (actual time=0.006..0.580 rows=1,193 loops=1)

Planning time : 35.573 ms
Execution time : 75.008 ms