explain.depesz.com

PostgreSQL's explain analyze made readable

Result: W9sl : F3

Settings
# exclusive inclusive rows x rows loops node
1. 0.010 4,563.180 ↑ 2.4 14 1

Sort (cost=34,685.48..34,685.56 rows=33 width=36) (actual time=4,563.179..4,563.180 rows=14 loops=1)

  • Sort Key: i.bucket
  • Sort Method: quicksort Memory: 26kB
2. 214.018 4,563.170 ↑ 2.4 14 1

HashAggregate (cost=34,683.99..34,684.65 rows=33 width=36) (actual time=4,563.160..4,563.170 rows=14 loops=1)

  • Group Key: i.bucket
3. 834.612 4,349.152 ↓ 25.1 768,428 1

Nested Loop Left Join (cost=1,084.30..34,070.63 rows=30,668 width=53) (actual time=611.510..4,349.152 rows=768,428 loops=1)

  • Join Filter: ((t0.began >= i.begin) AND (t0.began <= i.""end""))
  • Rows Removed by Join Filter: 9,989,564
4. 0.015 0.106 ↑ 2.4 14 1

Subquery Scan on i (cost=0.00..4.00 rows=33 width=20) (actual time=0.010..0.106 rows=14 loops=1)

  • Filter: (i.bucket > 0)
  • Rows Removed by Filter: 1
5. 0.066 0.091 ↑ 6.7 15 1

WindowAgg (cost=0.00..2.75 rows=100 width=20) (actual time=0.008..0.091 rows=15 loops=1)

6. 0.025 0.025 ↑ 6.7 15 1

Function Scan on unnest times (cost=0.00..1.00 rows=100 width=16) (actual time=0.005..0.025 rows=15 loops=1)

  • Filter: (t IS NOT NULL)
7. 1,171.299 3,514.434 ↓ 91.9 768,428 14

Materialize (cost=1,084.30..29,257.33 rows=8,364 width=57) (actual time=0.894..251.031 rows=768,428 loops=14)

8. 24.401 2,343.135 ↓ 91.9 768,428 1

Gather (cost=1,084.30..29,215.51 rows=8,364 width=57) (actual time=12.472..2,343.135 rows=768,428 loops=1)

  • Workers Planned: 1
  • Workers Launched: 1
9. 34.032 2,318.734 ↓ 78.1 384,214 2 / 2

Nested Loop (cost=84.30..27,379.11 rows=4,920 width=57) (actual time=10.379..2,318.734 rows=384,214 loops=2)

10. 12.709 939.953 ↓ 75.8 96,054 2 / 2

Nested Loop (cost=83.74..15,750.90 rows=1,267 width=24) (actual time=10.363..939.953 rows=96,054 loops=2)

11. 12.946 639.061 ↓ 75.8 96,061 2 / 2

Nested Loop (cost=83.32..15,095.49 rows=1,267 width=24) (actual time=10.353..639.061 rows=96,061 loops=2)

12. 19.513 337.926 ↓ 76.4 96,063 2 / 2

Nested Loop (cost=82.89..14,459.22 rows=1,257 width=24) (actual time=10.341..337.926 rows=96,063 loops=2)

13. 24.615 30.105 ↓ 76.0 96,102 2 / 2

Parallel Bitmap Heap Scan on call t0 (cost=82.47..6,245.58 rows=1,265 width=24) (actual time=10.324..30.105 rows=96,102 loops=2)

  • Recheck Cond: ((began >= ('{""2020-03-01 13:00:00+00"",""2020-03-08 13:00:00+00"",""2020-03-15 13:00:00+00"",""2020-03-22 13:00:00+00"",""2020-03-29 13:00:00+00"",""2020-04-05 14:00:00+00"",""2020-04-12 14:00:00+00"",""2020-04-19 14:00:00+00"",""2020-04-26 14:00:00+00"",""2020-05-03 14:00:00+00"",""2020-05-10 14:00:00+00"",""2020-05-17 14:00:00+00"",""2020-05-24 14:00:00+00"",""2020-05-31 14:00:00+00"",""2020-06-11 14:00:00+00""}'::timestamp with time zone[])[1]) AND (began < ('{""2020-03-01 13:00:00+00"",""2020-03-08 13:00:00+00"",""2020-03-15 13:00:00+00"",""2020-03-22 13:00:00+00"",""2020-03-29 13:00:00+00"",""2020-04-05 14:00:00+00"",""2020-04-12 14:00:00+00"",""2020-04-19 14:00:00+00"",""2020-04-26 14:00:00+00"",""2020-05-03 14:00:00+00"",""2020-05-10 14:00:00+00"",""2020-05-17 14:00:00+00"",""2020-05-24 14:00:00+00"",""2020-05-31 14:00:00+00"",""2020-06-11 14:00:00+00""}'::timestamp with time zone[])[15]))
  • Heap Blocks: exact=3,291
14. 5.490 5.490 ↓ 89.4 192,205 1 / 2

Bitmap Index Scan on call_idx_began (cost=0.00..81.93 rows=2,151 width=0) (actual time=10.979..10.980 rows=192,205 loops=1)

  • Index Cond: ((began >= ('{""2020-03-01 13:00:00+00"",""2020-03-08 13:00:00+00"",""2020-03-15 13:00:00+00"",""2020-03-22 13:00:00+00"",""2020-03-29 13:00:00+00"",""2020-04-05 14:00:00+00"",""2020-04-12 14:00:00+00"",""2020-04-19 14:00:00+00"",""2020-04-26 14:00:00+00"",""2020-05-03 14:00:00+00"",""2020-05-10 14:00:00+00"",""2020-05-17 14:00:00+00"",""2020-05-24 14:00:00+00"",""2020-05-31 14:00:00+00"",""2020-06-11 14:00:00+00""}'::timestamp with time zone[])[1]) AND (began < ('{""2020-03-01 13:00:00+00"",""2020-03-08 13:00:00+00"",""2020-03-15 13:00:00+00"",""2020-03-22 13:00:00+00"",""2020-03-29 13:00:00+00"",""2020-04-05 14:00:00+00"",""2020-04-12 14:00:00+00"",""2020-04-19 14:00:00+00"",""2020-04-26 14:00:00+00"",""2020-05-03 14:00:00+00"",""2020-05-10 14:00:00+00"",""2020-05-17 14:00:00+00"",""2020-05-24 14:00:00+00"",""2020-05-31 14:00:00+00"",""2020-06-11 14:00:00+00""}'::timestamp with time zone[])[15]))
15. 288.308 288.308 ↑ 1.0 1 192,205 / 2

Index Scan using transcript_unique_call_id on transcript t1 (cost=0.42..6.49 rows=1 width=32) (actual time=0.003..0.003 rows=1 loops=192,205)

  • Index Cond: (call_id = t0.id)
16. 288.189 288.189 ↑ 1.0 1 192,126 / 2

Index Scan using enriched_transcript_unique_transcript_id on enriched_transcript t2 (cost=0.42..0.51 rows=1 width=32) (actual time=0.003..0.003 rows=1 loops=192,126)

  • Index Cond: (transcript_id = t1.id)
17. 288.183 288.183 ↑ 1.0 1 192,122 / 2

Index Scan using scorecard_run_unique_enriched_transcript_id on scorecard_run t3 (cost=0.42..0.52 rows=1 width=32) (actual time=0.003..0.003 rows=1 loops=192,122)

  • Index Cond: (enriched_transcript_id = t2.id)
18. 1,344.749 1,344.749 ↑ 6.2 4 192,107 / 2

Index Scan using scorecard_result_idx_scorecard_run_id_parent on scorecard_result t4 (cost=0.56..8.93 rows=25 width=65) (actual time=0.009..0.014 rows=4 loops=192,107)

  • Index Cond: (scorecard_run_id = t3.id)
  • Filter: ((parent IS NULL) OR ((question)::text = 'Communication'::text) OR ((question)::text = 'Compliance'::text) OR ((question)::text = 'Conduct'::text))
  • Rows Removed by Filter: 29
Planning time : 2.107 ms
Execution time : 4,570.737 ms