explain.depesz.com

PostgreSQL's explain analyze made readable

Result: pLNM : When nerve impulse travels along a neuron or from one neuron to another it does so in th form of electrical and chemical signals. The nerve impulse enters the neuron through the dendrites and travel along the length of the axon

Settings
# exclusive inclusive rows x rows loops node
1. 0.158 55.012 ↑ 11.4 71 1

Sort (cost=146.63..148.65 rows=808 width=138) (actual time=55.009..55.012 rows=71 loops=1)

  • Sort Key: n.nspname, p.proname, (pg_get_function_arguments(p.oid))
  • Sort Method: quicksort Memory: 43kB
2. 1.378 54.854 ↑ 11.4 71 1

Hash Join (cost=1.14..107.61 rows=808 width=138) (actual time=42.495..54.854 rows=71 loops=1)

  • Hash Cond: (p.pronamespace = n.oid)
3. 53.465 53.465 ↓ 3.0 2,402 1

Seq Scan on pg_proc p (cost=0.00..89.30 rows=808 width=78) (actual time=0.052..53.465 rows=2,402 loops=1)

  • Filter: pg_function_is_visible(oid)
4. 0.004 0.011 ↑ 1.0 4 1

Hash (cost=1.09..1.09 rows=4 width=68) (actual time=0.011..0.011 rows=4 loops=1)

  • Buckets: 1024 Batches: 1 Memory Usage: 1kB
5. 0.007 0.007 ↑ 1.0 4 1

Seq Scan on pg_namespace n (cost=0.00..1.09 rows=4 width=68) (actual time=0.005..0.007 rows=4 loops=1)

  • Filter: ((nspname <> 'pg_catalog'::name) AND (nspname <> 'information_schema'::name))