QUERY PLAN
Group (cost=2.25..2.26 rows=1 width=139)
Group Key: ps.id
-> Sort (cost=2.25..2.26 rows=1 width=139)
Sort Key: ps.id
-> Nested Loop (cost=0.00..2.24 rows=1 width=139)
Join Filter: (ps.id = psrr.punch_strategy_id)
-> Seq Scan on tbl_punch_strategy_resource_rels psrr (cost=0.00..1.18 rows=1 width=4)
Filter: (user_id = 1001)
-> Seq Scan on tbl_punch_strategies ps (cost=0.00..1.03 rows=3 width=139)