explain.depesz.com

PostgreSQL's explain analyze made readable

Result: 6IlN : PostgreSQL 13 - YAML

Settings

Optimization(s) for this plan:

# exclusive inclusive rows x rows loops node
1. 0.009 0.490 ↑ 32.0 1 1

Sort (cost=32.93..33.01 rows=32 width=224) (actual time=0.489..0.490 rows=1 loops=1)

  • Sort Key: n.nspname, c.relname
  • Sort Method: quicksort Memory: 25kB
  • Buffers: shared hit=14
2. 0.055 0.481 ↑ 32.0 1 1

Hash Join (cost=1.09..32.13 rows=32 width=224) (actual time=0.071..0.481 rows=1 loops=1)

  • Buffers: shared hit=14
3. 0.391 0.391 ↓ 2.0 130 1

Seq Scan on pg_class c (cost=0.00..29.89 rows=65 width=73) (actual time=0.020..0.391 rows=130 loops=1)

  • Filter: ((relkind = ANY ('{r,p,v,m,S,f,""}'::"char"[])) AND pg_table_is_visible(oid))
  • Buffers: shared hit=13
4. 0.005 0.035 ↑ 2.0 1 1

Hash (cost=1.07..1.07 rows=2 width=68) (actual time=0.035..0.035 rows=1 loops=1)

  • Buffers: shared hit=1
5. 0.030 0.030 ↑ 2.0 1 1

Seq Scan on pg_namespace n (cost=0.00..1.07 rows=2 width=68) (actual time=0.028..0.030 rows=1 loops=1)

  • Filter: ((nspname <> 'pg_catalog'::name) AND (nspname <> 'information_schema'::name) AND (nspname !~ '^pg_toast'::text))
  • Buffers: shared hit=1
Planning time : 0.527 ms
Execution time : 0.575 ms