explain.depesz.com

PostgreSQL's explain analyze made readable

Result: nWCn

Settings
# exclusive inclusive rows x rows loops node
1. 0.000 699.593 ↓ 0.0 141 1
→

Custom Scan (Citus Router) (cost=0.00..0.00 rows=0 width=0) (actual time=699.587..699.593 rows=141 loops=1)

  • Task Count: 1
  • Tasks Shown: All
  • -> Task
  • Node: host=ec2-3-91-129-165.compute-1.amazonaws.com port=5432 dbname=citus
  • Planning time: 0.456 ms
  • Execution time: 872.016 ms
2. 0.070 871.649 ↑ 13.0 141 1
→

Finalize GroupAggregate (cost=116,212.90..116,258.85 rows=1,838 width=16) (actual time=871.565..871.649 rows=141 loops=1)

  • Group Key: meetings.company_user_id
3. 0.062 871.579 ↑ 8.8 420 1
→

Sort (cost=116,212.90..116,222.09 rows=3,676 width=16) (actual time=871.559..871.579 rows=420 loops=1)

  • Sort Key: meetings.company_user_id
  • Sort Method: quicksort Memory: 44kB
4. 28.239 871.517 ↑ 8.8 420 1
→

Gather (cost=115,609.22..115,995.20 rows=3,676 width=16) (actual time=871.359..871.517 rows=420 loops=1)

  • Workers Planned: 2
  • Workers Launched: 2
5. 37.512 843.278 ↑ 13.1 140 3
→

Partial HashAggregate (cost=114,609.22..114,627.60 rows=1,838 width=16) (actual time=843.238..843.278 rows=140 loops=3)

  • Group Key: meetings.company_user_id
6. 104.201 805.766 ↓ 3.6 78,217 3
→

Merge Join (cost=30,440.08..114,500.65 rows=21,715 width=8) (actual time=429.218..805.766 rows=78,217 loops=3)

  • Merge Cond: (meetings.id = entity_associations.source_entity_id)
7. 31.341 234.640 ↑ 1.4 32,769 3
→

Sort (cost=30,439.47..30,557.62 rows=47,261 width=24) (actual time=225.062..234.640 rows=32,769 loops=3)

  • Sort Key: meetings.id
  • Sort Method: quicksort Memory: 3010kB
8. 203.299 203.299 ↑ 1.4 32,769 3
→

Parallel Seq Scan on meetings_108749 meetings (cost=0.00..26,770.04 rows=47,261 width=24) (actual time=0.050..203.299 rows=32,769 loops=3)

  • Filter: ((end_time >= '2017-08-04 00:00:00+00'::timestamp with time zone) AND (end_time <= '2018-09-04 23:59:59.999999+00'::timestamp with time zone) AND (company_id = 2928))
  • Rows Removed by Filter: 165678
9. 466.925 466.925 ↓ 1.6 438,075 3
→

Index Only Scan using entity_associations_source_to_target_107725 on entity_associations_107725 entity_associations (cost=0.56..231,638.15 rows=273,549 width=16) (actual time=0.061..466.925 rows=438,075 loops=3)

  • Index Cond: ((company_id = 2928) AND (source_entity_type = 27))
  • Heap Fetches: 283992