#	exclusive	inclusive	rows x	rows	loops	node
1.	0.011	0.114	↓ 4.0	4	1	→ Nested Loop (cost=0.01..12.59 rows=1 width=119) (actual time=0.081..0.114 rows=4 loops=1)
2.	0.079	0.079	↓ 4.0	4	1	→ Index Scan using dlm_principal_tbl_client_uid_site_uid_lot_uid_type_ddt_idx on dlm_principal_tbl a (cost=0.00..6.28 rows=1 width=88) (actual time=0.067..0.079 rows=4 loops=1) Index Cond: ((client_uid = 10) AND (site_uid = 1979) AND (lot_uid = 1037976)) Filter: ((type_ddt)::text = ANY ('{l,t}'::text[]))
3.	0.024	0.024	↑ 1.0	1	4	→ Index Scan using lot_domain_uid_client_uid_site_uid_idx1 on lot_domain b (cost=0.01..6.31 rows=1 width=46) (actual time=0.006..0.006 rows=1 loops=4) Index Cond: (((uid)::integer = 1037976) AND ((client_uid)::integer = 10) AND ((site_uid)::integer = 1979))

Nested Loop  (cost=0.01..12.59 rows=1 width=119) (actual time=0.081..0.114 rows=4 loops=1)
  ->  Index Scan using dlm_principal_tbl_client_uid_site_uid_lot_uid_type_ddt_idx on dlm_principal_tbl a  (cost=0.00..6.28 rows=1 width=88) (actual time=0.067..0.079 rows=4 loops=1)
        Index Cond: ((client_uid = 10) AND (site_uid = 1979) AND (lot_uid = 1037976))
        Filter: ((type_ddt)::text = ANY ('{l,t}'::text[]))
  ->  Index Scan using lot_domain_uid_client_uid_site_uid_idx1 on lot_domain b  (cost=0.01..6.31 rows=1 width=46) (actual time=0.006..0.006 rows=1 loops=4)
        Index Cond: (((uid)::integer = 1037976) AND ((client_uid)::integer = 10) AND ((site_uid)::integer = 1979))
Total runtime: 0.197 ms

Per node type stats

node type	count	sum of times	% of query
Index Scan	2	0.103 ms	90.4 %
Nested Loop	1	0.011 ms	9.6 %

Per table stats

Table name	Scan count	Total time	% of query
scan type	count	sum of times	% of table
dlm_principal_tbl	1	0.079 ms	69.3 %
Index Scan	1	0.079 ms	100.0 %
lot_domain	1	0.024 ms	21.1 %
Index Scan	1	0.024 ms	100.0 %

explain.depesz.com

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Result: 5C4

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Per node type stats

Per table stats