#	exclusive	inclusive	rows x	rows	loops	node
1.	141.919	258.889	↓ 199.8	164048	1	→ Sort (cost=8707.66..8709.71 rows=821 width=1567) (actual time=224.386..258.889 rows=164048 loops=1) Sort Key: z01_numcgm
2.	116.970	116.970	↓ 199.8	164048	1	→ Seq Scan on cgm (cost=0.00..8667.92 rows=821 width=1567) (actual time=6.366..116.970 rows=164048 loops=1) Filter: (((substr((z01_nome)::text, 1, 1))::text >= 'A'::text) AND ((substr((z01_nome)::text, 1, 1))::text <= 'Z'::text))

                                                            QUERY PLAN                                                             
-----------------------------------------------------------------------------------------------------------------------------------
 Sort  (cost=8707.66..8709.71 rows=821 width=1567) (actual time=224.386..258.889 rows=164048 loops=1)
   Sort Key: z01_numcgm
   ->  Seq Scan on cgm  (cost=0.00..8667.92 rows=821 width=1567) (actual time=6.366..116.970 rows=164048 loops=1)
         Filter: (((substr((z01_nome)::text, 1, 1))::text >= 'A'::text) AND ((substr((z01_nome)::text, 1, 1))::text <= 'Z'::text))
 Total runtime: 282.657 ms

Per node type stats

node type	count	sum of times	% of query
Seq Scan	1	116.970 ms	45.2 %
Sort	1	141.919 ms	54.8 %

Per table stats

Table name	Scan count	Total time	% of query
scan type	count	sum of times	% of table
cgm	1	116.970 ms	45.2 %
Seq Scan	1	116.970 ms	100.0 %

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Per node type stats

Per table stats