explain.depesz.com

PostgreSQL's explain analyze made readable

Result: l33D : Optimization for: Optimization for: Optimization for: plan #DR4m; plan #jBti; plan #7py4

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Optimization path:

Optimization(s) for this plan:

# exclusive inclusive rows x rows loops node
1. 3,638.135 17,330.595 ↓ 7.1 85,367 1

Merge Join (cost=3,464,329.68..3,668,499.76 rows=12,104 width=1,843) (actual time=13,589.806..17,330.595 rows=85,367 loops=1)

  • Buffers: shared hit=1,964,551 read=235,751
2. 78.915 8,937.013 ↓ 7.1 85,367 1

Sort (cost=1,763,060.9..1,763,091.16 rows=12,104 width=783) (actual time=8,919.578..8,937.013 rows=85,367 loops=1)

  • Sort Key: b.id
  • Sort Method: quicksort Memory: 26,879kB
  • Buffers: shared hit=618,250 read=207,743
3. 47.765 8,858.098 ↓ 7.1 85,367 1

Hash Join (cost=1,743,988.38..1,762,240.06 rows=12,104 width=783) (actual time=8,201.428..8,858.098 rows=85,367 loops=1)

  • Buffers: shared hit=618,250 read=207,743
4. 26.972 1,005.249 ↓ 7.1 85,367 1

Hash Join (cost=33,013.02..51,232.93 rows=12,104 width=775) (actual time=396.337..1,005.249 rows=85,367 loops=1)

  • Buffers: shared hit=362,029 read=4,891
5. 29.616 977.074 ↓ 7.1 85,367 1

Hash Join (cost=31,651.07..49,838.95 rows=12,104 width=755) (actual time=395.128..977.074 rows=85,367 loops=1)

  • Buffers: shared hit=360,679 read=4,891
6. 32.346 946.909 ↓ 7.1 85,367 1

Hash Join (cost=31,606.15..49,762.16 rows=12,104 width=744) (actual time=394.574..946.909 rows=85,367 loops=1)

  • Buffers: shared hit=360,665 read=4,891
7. 31.844 914.549 ↓ 7.1 85,367 1

Hash Join (cost=31,604.66..49,722.78 rows=12,104 width=232) (actual time=394.555..914.549 rows=85,367 loops=1)

  • Buffers: shared hit=360,664 read=4,891
8. 99.943 882.665 ↓ 7.1 85,367 1

Nested Loop (cost=31,601.74..49,687.67 rows=12,104 width=221) (actual time=394.504..882.665 rows=85,367 loops=1)

  • Buffers: shared hit=360,663 read=4,891
9. 158.982 611.988 ↓ 7.1 85,367 1

Hash Join (cost=31,601.32..43,300.04 rows=12,104 width=171) (actual time=394.483..611.988 rows=85,367 loops=1)

  • Buffers: shared hit=19,440 read=4,635
10. 59.453 59.453 ↓ 1.0 403,774 1

Seq Scan on checkout_batch_unity cbu (cost=0..8,671.37 rows=403,637 width=38) (actual time=0.021..59.453 rows=403,774 loops=1)

  • Buffers: shared read=4,635
11. 36.916 393.553 ↓ 7.1 85,367 1

Hash (cost=31,419.76..31,419.76 rows=12,104 width=145) (actual time=393.553..393.553 rows=85,367 loops=1)

  • Buffers: shared hit=19,440
12. 36.038 356.637 ↓ 7.1 85,367 1

Hash Join (cost=1,920.79..31,419.76 rows=12,104 width=145) (actual time=3.191..356.637 rows=85,367 loops=1)

  • Buffers: shared hit=19,440
13. 204.829 320.082 ↑ 2.2 85,367 1

Hash Join (cost=1,178.23..29,855.3 rows=186,889 width=110) (actual time=2.67..320.082 rows=85,367 loops=1)

  • Buffers: shared hit=18,822
14. 112.600 112.600 ↓ 1.0 865,855 1

Seq Scan on batchunity b (cost=0..26,403.14 rows=865,714 width=83) (actual time=0.004..112.6 rows=865,855 loops=1)

  • Buffers: shared hit=17,746
15. 0.292 2.653 ↑ 1.0 1,452 1

Hash (cost=1,160.08..1,160.08 rows=1,452 width=35) (actual time=2.653..2.653 rows=1,452 loops=1)

  • Buffers: shared hit=1,076
16. 2.361 2.361 ↑ 1.0 1,452 1

Seq Scan on batch bt (cost=0..1,160.08 rows=1,452 width=35) (actual time=0.06..2.361 rows=1,452 loops=1)

  • Filter: (bt.company_id = 501)
  • Buffers: shared hit=1,076
17. 0.030 0.517 ↓ 1.1 97 1

Hash (cost=741.45..741.45 rows=89 width=43) (actual time=0.517..0.517 rows=97 loops=1)

  • Buffers: shared hit=618
18. 0.115 0.487 ↓ 1.1 97 1

Nested Loop (cost=3.28..741.45 rows=89 width=43) (actual time=0.032..0.487 rows=97 loops=1)

  • Buffers: shared hit=618
19. 0.178 0.178 ↑ 1.0 97 1

Index Scan using subarea_pkey on subarea cs (cost=0.28..60.8 rows=97 width=19) (actual time=0.022..0.178 rows=97 loops=1)

  • Index Cond: (cs.id = ANY ('{1051,1201,801,851,800,2817,4110,4111,4112,11404,2805,11408,10538,14255,2802,2812,2706,6812,7380,7381,13154,10457,2853,2810,2813,2811,2814,2854,2705,4108,6250,10675,7385,2803,11796,11407,2820,4654,8503,9552,2818,13057,11405,11406,8569,2819,751,10674,13102,2816,2815,2807,2804,2806,10673,12802,12803,12804,12805,12815,12806,12807,12808,12809,12810,12811,12812,12816,12813,12814,1101,1301,901,1251,1151,1001,951,10352,10353,9804,2823,2808,2809,11797,2824,2822,4657,4109,3503,2825,1756,2821,10402,10403,11452,2752,7402}'::integer[]))
  • Buffers: shared hit=230
20. 0.097 0.194 ↑ 1.0 1 97

Bitmap Heap Scan on accountable acc (cost=3..7.02 rows=1 width=28) (actual time=0.002..0.002 rows=1 loops=97)

  • Filter: acc.active
  • Heap Blocks: exact=97
  • Buffers: shared hit=388
21. 0.097 0.097 ↑ 1.0 1 97

Bitmap Index Scan on accountable_pkey (cost=0..3 rows=1 width=0) (actual time=0.001..0.001 rows=1 loops=97)

  • Index Cond: (acc.id = cs.accountable_id)
  • Buffers: shared hit=291
22. 170.734 170.734 ↑ 1.0 1 85,367

Index Scan using batchunity_detail_pkey on batchunity_detail bd (cost=0.42..0.53 rows=1 width=54) (actual time=0.002..0.002 rows=1 loops=85,367)

  • Index Cond: (bd.batchunity_id = b.id)
  • Buffers: shared hit=341,223 read=256
23. 0.021 0.040 ↓ 1.2 100 1

Hash (cost=1.85..1.85 rows=85 width=19) (actual time=0.04..0.04 rows=100 loops=1)

  • Buffers: shared hit=1
24. 0.019 0.019 ↓ 1.2 100 1

Seq Scan on batchunitystatus bus (cost=0..1.85 rows=85 width=19) (actual time=0.006..0.019 rows=100 loops=1)

  • Buffers: shared hit=1
25. 0.006 0.014 ↓ 1.1 24 1

Hash (cost=1.22..1.22 rows=22 width=520) (actual time=0.014..0.014 rows=24 loops=1)

  • Buffers: shared hit=1
26. 0.008 0.008 ↓ 1.1 24 1

Seq Scan on batchunityeventtype buevt (cost=0..1.22 rows=22 width=520) (actual time=0.004..0.008 rows=24 loops=1)

  • Buffers: shared hit=1
27. 0.271 0.549 ↑ 1.0 1,336 1

Hash (cost=27.74..27.74 rows=1,374 width=19) (actual time=0.549..0.549 rows=1,336 loops=1)

  • Buffers: shared hit=14
28. 0.278 0.278 ↑ 1.0 1,336 1

Seq Scan on subarea cs_lastevent (cost=0..27.74 rows=1,374 width=19) (actual time=0.005..0.278 rows=1,336 loops=1)

  • Buffers: shared hit=14
29. 0.098 1.203 ↑ 1.0 511 1

Hash (cost=1,355.57..1,355.57 rows=511 width=28) (actual time=1.203..1.203 rows=511 loops=1)

  • Buffers: shared hit=1,350
30. 1.105 1.105 ↑ 1.0 511 1

Seq Scan on accountable acc_lastevent (cost=0..1,355.57 rows=511 width=28) (actual time=0.005..1.105 rows=511 loops=1)

  • Filter: acc_lastevent.active
  • Buffers: shared hit=1,350
31. 11.954 7,805.084 ↓ 327.1 65,425 1

Hash (cost=1,710,972.86..1,710,972.86 rows=200 width=12) (actual time=7,805.084..7,805.084 rows=65,425 loops=1)

  • Buffers: shared hit=256,221 read=202,852
32. 9.029 7,793.130 ↓ 327.1 65,425 1

Subquery Scan on event_collect (cost=1,710,968.86..1,710,972.86 rows=200 width=12) (actual time=7,769.586..7,793.13 rows=65,425 loops=1)

  • Buffers: shared hit=256,221 read=202,852
33. 1,547.798 7,784.101 ↓ 327.1 65,425 1

HashAggregate (cost=1,710,968.86..1,710,970.86 rows=200 width=12) (actual time=7,769.586..7,784.101 rows=65,425 loops=1)

  • Group Key: bh.batchunity_id
  • Buffers: shared hit=256,221 read=202,852
34. 496.626 6,236.303 ↓ 2.5 4,725,314 1

Append (cost=0..1,701,459.38 rows=1,901,895 width=12) (actual time=2.325..6,236.303 rows=4,725,314 loops=1)

  • Buffers: shared hit=256,221 read=202,852
35. 0.002 0.002 ↓ 0.0 0 1

Seq Scan on batchunityhistory_part bh (cost=0..0 rows=1 width=12) (actual time=0.002..0.002 rows=0 loops=1)

  • Filter: ((bh.eventtype_id = ANY ('{2,4}'::integer[])) AND (bh.subarea_id = 2,706))
36. 252.842 252.842 ↓ 1.7 209,041 1

Seq Scan on batchunityhistory_part_2017 bh_1 (cost=0..35,657.26 rows=120,979 width=12) (actual time=2.322..252.842 rows=209,041 loops=1)

  • Filter: ((bh_1.eventtype_id = ANY ('{2,4}'::integer[])) AND (bh_1.subarea_id = 2,706))
  • Buffers: shared read=15,442
37. 1,369.045 1,691.001 ↓ 2.3 1,751,925 1

Bitmap Heap Scan on batchunityhistory_part_2018 bh_2 (cost=114,998.25..410,429.74 rows=746,551 width=12) (actual time=358.199..1,691.001 rows=1,751,925 loops=1)

  • Filter: (bh_2.subarea_id = 2,706)
  • Heap Blocks: exact=84,688
  • Buffers: shared hit=5 read=103,660
38. 321.956 321.956 ↓ 1.0 6,942,989 1

Bitmap Index Scan on history_part_2018_eventtype_id_idx (cost=0..114,811.61 rows=6,934,766 width=0) (actual time=321.956..321.956 rows=6,942,989 loops=1)

  • Index Cond: (bh_2.eventtype_id = ANY ('{2,4}'::integer[]))
  • Buffers: shared hit=3 read=18,974
39. 2,210.424 2,901.443 ↓ 2.4 1,830,486 1

Bitmap Heap Scan on batchunityhistory_part_2019 bh_3 (cost=242,028.83..937,993.49 rows=751,480 width=12) (actual time=745.824..2,901.443 rows=1,830,486 loops=1)

  • Filter: (bh_3.subarea_id = 2,706)
  • Heap Blocks: exact=217,453
  • Buffers: shared hit=193,813 read=63,471
40. 691.019 691.019 ↑ 1.0 14,574,857 1

Bitmap Index Scan on history_part_2019_eventtype_id_idx (cost=0..241,840.96 rows=14,578,644 width=0) (actual time=691.019..691.019 rows=14,574,857 loops=1)

  • Index Cond: (bh_3.eventtype_id = ANY ('{2,4}'::integer[]))
  • Buffers: shared hit=4 read=39,827
41. 727.696 894.389 ↓ 3.3 933,862 1

Bitmap Heap Scan on batchunityhistory_part_2020 bh_4 (cost=77,234.69..317,378.89 rows=282,884 width=12) (actual time=180.991..894.389 rows=933,862 loops=1)

  • Filter: (bh_4.subarea_id = 2,706)
  • Heap Blocks: exact=69,259
  • Buffers: shared hit=62,403 read=20,279
42. 166.693 166.693 ↓ 1.0 4,127,242 1

Bitmap Index Scan on history_part_2020_eventtype_id_idx (cost=0..77,163.97 rows=4,062,280 width=0) (actual time=166.693..166.693 rows=4,127,242 loops=1)

  • Index Cond: (bh_4.eventtype_id = ANY ('{2,4}'::integer[]))
  • Buffers: shared hit=13,423
43. 0.003 4,670.080 ↓ 0.0 0 1

GroupAggregate (cost=1,701,268.78..1,701,302.37 rows=200 width=12) (actual time=4,670.079..4,670.08 rows=0 loops=1)

  • Group Key: bh_5.batchunity_id
  • Buffers: shared hit=431,066 read=28,007
44. 0.009 4,670.077 ↓ 0.0 0 1

Sort (cost=1,701,268.78..1,701,279.31 rows=4,212 width=12) (actual time=4,670.077..4,670.077 rows=0 loops=1)

  • Sort Key: bh_5.batchunity_id
  • Sort Method: quicksort Memory: 25kB
  • Buffers: shared hit=431,066 read=28,007
45. 0.005 4,670.068 ↓ 0.0 0 1

Append (cost=0..1,701,015.21 rows=4,212 width=12) (actual time=4,670.068..4,670.068 rows=0 loops=1)

  • Buffers: shared hit=431,066 read=28,007
46. 0.004 0.004 ↓ 0.0 0 1

Seq Scan on batchunityhistory_part bh_5 (cost=0..0 rows=1 width=12) (actual time=0.004..0.004 rows=0 loops=1)

  • Filter: ((bh_5.eventtype_id = ANY ('{2,4}'::integer[])) AND (bh_5.subarea_id = 4,654))
47. 191.836 191.836 ↓ 0.0 0 1

Seq Scan on batchunityhistory_part_2017 bh_6 (cost=0..35,657.26 rows=5 width=12) (actual time=191.836..191.836 rows=0 loops=1)

  • Filter: ((bh_6.eventtype_id = ANY ('{2,4}'::integer[])) AND (bh_6.subarea_id = 4,654))
  • Buffers: shared hit=15,442
48. 892.448 1,167.462 ↓ 0.0 0 1

Bitmap Heap Scan on batchunityhistory_part_2018 bh_7 (cost=114,811.85..410,243.34 rows=933 width=12) (actual time=1,167.462..1,167.462 rows=0 loops=1)

  • Filter: (bh_7.subarea_id = 4,654)
  • Heap Blocks: exact=84,688
  • Buffers: shared hit=103,665
49. 275.014 275.014 ↓ 1.0 6,942,989 1

Bitmap Index Scan on history_part_2018_eventtype_id_idx (cost=0..114,811.61 rows=6,934,766 width=0) (actual time=275.014..275.014 rows=6,942,989 loops=1)

  • Index Cond: (bh_7.eventtype_id = ANY ('{2,4}'::integer[]))
  • Buffers: shared hit=18,977
50. 1,981.850 2,591.442 ↓ 0.0 0 1

Bitmap Heap Scan on batchunityhistory_part_2019 bh_8 (cost=241,841.56..937,806.22 rows=2,399 width=12) (actual time=2,591.442..2,591.442 rows=0 loops=1)

  • Filter: (bh_8.subarea_id = 4,654)
  • Heap Blocks: exact=217,453
  • Buffers: shared hit=229,278 read=28,006
51. 609.592 609.592 ↑ 1.0 14,574,857 1

Bitmap Index Scan on history_part_2019_eventtype_id_idx (cost=0..241,840.96 rows=14,578,644 width=0) (actual time=609.592..609.592 rows=14,574,857 loops=1)

  • Index Cond: (bh_8.eventtype_id = ANY ('{2,4}'::integer[]))
  • Buffers: shared hit=39,831
52. 554.300 719.319 ↓ 0.0 0 1

Bitmap Heap Scan on batchunityhistory_part_2020 bh_9 (cost=77,164.19..317,308.39 rows=874 width=12) (actual time=719.319..719.319 rows=0 loops=1)

  • Filter: (bh_9.subarea_id = 4,654)
  • Heap Blocks: exact=69,259
  • Buffers: shared hit=82,681 read=1
53. 165.019 165.019 ↓ 1.0 4,127,242 1

Bitmap Index Scan on history_part_2020_eventtype_id_idx (cost=0..77,163.97 rows=4,062,280 width=0) (actual time=165.019..165.019 rows=4,127,242 loops=1)

  • Index Cond: (bh_9.eventtype_id = ANY ('{2,4}'::integer[]))
  • Buffers: shared hit=13,422 read=1
54.          

SubPlan (for Merge Join)

55. 85.367 85.367 ↓ 0.0 0 85,367

Index Scan using employee_pk on employee e (cost=0.29..8.3 rows=1 width=27) (actual time=0.001..0.001 rows=0 loops=85,367)

  • Index Cond: (e.id = bd.possession_employee_id)
  • Buffers: shared hit=69,886 read=1
56. 0.000 0.000 ↓ 0.0 0 85,367

Index Scan using employee_pk on employee e_1 (cost=0.29..8.3 rows=1 width=27) (actual time=0..0 rows=0 loops=85,367)

  • Index Cond: (e_1.id = bd.dedicated_employee_id)
Planning time : 7.458 ms
Execution time : 17,338.577 ms