QUERY PLAN
Group (cost=2.28..2.28 rows=1 width=912)
Group Key: ps.id
-> Sort (cost=2.28..2.28 rows=1 width=912)
Sort Key: ps.id
-> Nested Loop (cost=0.00..2.27 rows=1 width=912)
Join Filter: (ps.id = psrr.punch_strategy_id)
-> Seq Scan on tbl_punch_strategy_resource_rels psrr (cost=0.00..1.20 rows=1 width=4)
Filter: (user_id = 1000)
-> Seq Scan on tbl_punch_strategies ps (cost=0.00..1.03 rows=3 width=912)