-> Merge Full Join (cost=2860 .72..2880.04 rows=1083 width=95) Merge Cond: ("outer"."?co lumn3?" = "inner".msisdn) -> Sort (cost=2665.53.. 2665.55 rows=6 width=40) Sort Key: (smsdn.dn )::numeric -> Subquery Scan s msdn (cost=2665.32..2665.45 rows=6 width=40) -> HashAggre gate (cost=2665.32..2665.39 rows=6 width=34) -> Seq Scan on raw3 (cost=0.00..2661.01 rows=861 width=34) F ilter: (rtype ~* 'sms'::text) -> Sort (cost=195.19..1 97.90 rows=1083 width=87) Sort Key: sims.msis dn -> Merge Full Join (cost=122.46..140.60 rows=1083 width=87) Merge Cond: ( "outer".plan_num = "inner".plan_num) -> Sort (co st=30.08..31.03 rows=380 width=48) Sort Ke y: plans.plan_num -> Seq Scan on plans (cost=0.00..13.80 rows=380 width=48) -> Sort (co st=92.38..93.80 rows=570 width=47) Sort Ke y: sims.plan_num -> Mer ge Full Join (cost=56.25..66.28 rows=570 width=47) M erge Cond: ("outer".dn = "inner"."?column4?") - > Sort (cost=14.46..14.86 rows=160 width=40) Sort Key: users2.dn -> Seq Scan on users2 (cost=0.00..8.60 rows=160 width=40) - > Sort (cost=41.79..43.22 rows=570 width=21) Sort Key: (sims.msisdn)::text -> Seq Scan on sims (cost=0.00..15.70 rows=570 width=21)