explain.depesz.com

PostgreSQL's explain analyze made readable

Result: 7Pfg : Optimization for: Optimization for: plan #hr5X; plan #pNT

Settings

Optimization path:

Optimization(s) for this plan:

# exclusive inclusive rows x rows loops node
1. 13.881 33.964 ↑ 1.7 40,827 1

Hash Join (cost=1,239.3..3,198.7 rows=68,838 width=8) (actual time=11.298..33.964 rows=40,827 loops=1)

  • Buffers: shared hit=719
2. 9.407 9.407 ↑ 1.0 79,154 1

Index Only Scan using ix_lobjectid_lsetid on dsmember dsmember (cost=0.42..1,752.01 rows=79,154 width=8) (actual time=0.252..9.407 rows=79,154 loops=1)

  • Heap Fetches: 114
  • Buffers: shared hit=543
3. 5.015 10.676 ↓ 1.0 38,099 1

Hash (cost=763.37..763.37 rows=38,041 width=4) (actual time=10.676..10.676 rows=38,099 loops=1)

  • Buffers: shared hit=176
4. 5.661 5.661 ↓ 1.0 38,099 1

Index Only Scan using idx_dsobject_lclassid_lid_4567 on dsobject dsobject (cost=0.29..763.37 rows=38,041 width=4) (actual time=0.018..5.661 rows=38,099 loops=1)

  • Heap Fetches: 7
  • Buffers: shared hit=176