QUERY PLAN
Nested Loop (cost=0.00..2.34 rows=1 width=42)
Join Filter: (plr.id = plrur.punch_leave_rule_id)
-> Seq Scan on tbl_punch_leave_rules plr (cost=0.00..1.01 rows=1 width=42)
Filter: (leave_type = '1'::smallint)
-> Seq Scan on tbl_punch_leave_rule_user_rels plrur (cost=0.00..1.31 rows=1 width=4)
Filter: (user_id = 1001)