query runs for more than 24 hours!

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Hi, I have a query that I run in my postgresql 9.6 database and it runs for more than 24 hours and doesnt finish.

My select consist from few joins :

SELECT a.inst_prod_id,
product_id,
nap_area2,
nap_phone_num,
nap_product_id,
b.nap_discount_num,
b.nap_makat_cd,
nap_act_start_dt,
b.nap_debt_line, nap_act_end_dt,
b.row_added_dttm
b.row_lastmant_dttm, FROM ps_rf_inst_prod a,
AND a.setid || ''= 'SHARE'
nap_ip_discount b WHERE nap_crm_status = 'C_04'
AND b.nap_makat_cd IN (SELECT term_code
AND b.setid || ''= 'SHARE' AND a.inst_prod_id = b.inst_prod_id
AND start_date <= b.nap_rishum_date
FROM tv_finterm WHERE pricing_method_code in ('2', '4')
AND coalesce(end_date, to_date('01/01/2095','DD/MM/YYYY')) !=
AND coalesce(end_date, to_date('01/01/2095','DD/MM/YYYY')) >= b.nap_rishum_date start_date)
AND (b.row_lastmant_dttm > to_date('01/01/2005','DD/MM/YYYY') OR
AND b.nap_act_end_dt > clock_timestamp() AND TRUNC(b.nap_act_start_dt) < TRUNC(b.nap_act_end_dt) b.nap_rishum_date > to_date('01/01/2005','DD/MM/YYYY') OR
WHERE PERCENT IS NOT NULL
b.row_added_dttm > to_date('01/01/2005','DD/MM/YYYY')) AND b.nap_discount_num IN (SELECT k.discount_line FROM tv_discounts_details k AND k.start_month = 1)
AND c.phone = a.nap_phone_num
AND (NOT EXISTS(SELECT /*+index(c TC_FINTERMS_I_SERVICE) */ 1 FROM tc_finterms c WHERE c.area = a.nap_area2 AND c.term_code = b.nap_makat_cd
WHERE service_uid = (a.inst_prod_id)::integer
AND deb_cred_line_no = b.nap_debt_line AND (payment_end_date > clock_timestamp()) AND term_type = '2') OR NOT EXISTS(SELECT 1 FROM ip_service_discounts AND service_code = b.nap_makat_cd
and b.nap_purch_instprod = ' ';
AND discount_code = b.nap_discount_num
AND (end_date IS NULL OR coalesce(discount_end_date, clock_timestamp() + interval '1 days') > clock_timestamp())))

Before trying to work on performance I checked locks and nothing returned :

=# select a1.query as blocking_query, a2. query as waiting_query,
t.schemaname ||'.'||t.relname as locked_table from pg_stat_activity
a1 join pg_locks p1 on a1. pid = p1.pid and p1.granted join pg_locks
pg_stat_activity a2 on a2. pid = p2.pid join pg_stat_all_tables t on
p2 on p1.relation = p2.relation and not p2.granted join p1.relation = t.relid;
(0 rows)
blocking_query | waiting_query | locked_table
----------------+---------------+--------------

I checked the explain plan of my query :

Nested Loop Semi Join (cost=0.43..7565655389.26 rows=1 width=93)
Join Filter: (b.nap_discount_num = (k.discount_line)::numeric)
-> Seq Scan on ps_rf_inst_prod a (cost=0.00..4337158.91 rows=40452 width=41)
-> Nested Loop (cost=0.43..7565653159.07 rows=2 width=93)
-> Index Scan using ps_nap_ip_discount on nap_ip_discount b (cost=0.43..186920.69 rows=1 width=60)
Filter: (((nap_crm_status)::text = 'C_04'::text) AND (((setid)::text || ''::text) = 'SHARE'::text))
Filter: (((nap_purch_instprod)::text = ' '::text) AND (nap_act_end_dt > clock_timestamp()) AND (((setid)::text || ''::t
Index Cond: ((inst_prod_id)::text = (a.inst_prod_id)::text)
e('01/01/2005'::text, 'DD/MM/YYYY'::text)) OR (nap_rishum_date > to_date('01/01/2005'::text, 'DD/MM/YYYY'::text)) OR (row_added_dttm >
ext) = 'SHARE'::text) AND (trunc(nap_act_start_dt, 'DDD'::text) < trunc(nap_act_end_dt, 'DDD'::text)) AND ((row_lastmant_dttm > to_dat
-> Index Scan using tc_finterms_ix1 on tc_finterms c (cost=0.56..8.60 rows=1 width=0)
to_date('01/01/2005'::text, 'DD/MM/YYYY'::text))) AND ((NOT (SubPlan 2)) OR (NOT (SubPlan 3))) AND (SubPlan 1)) SubPlan 2
b.nap_makat_cd) AND (deb_cred_line_no = (b.nap_debt_line)::double precision))
Index Cond: (((area)::text = (a.nap_area2)::text) AND ((phone)::text = (a.nap_phone_num)::text)) Filter: (((term_type)::text = '2'::text) AND (payment_end_date > clock_timestamp()) AND ((term_code)::numeric =
Filter: (((service_code)::numeric = b.nap_makat_cd) AND ((discount_code)::numeric = b.nap_discount_num) AND ((e
SubPlan 3 -> Index Scan using ip_service_discounts_pkey on ip_service_discounts (cost=0.56..10.78 rows=1 width=0) Index Cond: (service_uid = (a.inst_prod_id)::integer)
Recheck Cond: (((pricing_method_code)::text = ANY ('{2,4}'::text[])) AND (start_date <= b.nap_rishum_date))
nd_date IS NULL) OR (COALESCE((discount_end_date)::timestamp with time zone, (clock_timestamp() + '1 day'::interval)) > clock_timestam p()))) SubPlan 1 -> Bitmap Heap Scan on tv_finterm (cost=2290.83..17301.61 rows=26907 width=4)
-> Bitmap Index Scan on index_test_mariel (cost=0.00..2284.11 rows=81126 width=0)
Filter: ((COALESCE(end_date, (to_date('01/01/2095'::text, 'DD/MM/YYYY'::text))::timestamp without time zone) >= b.nap_rishum_date) AND (COALESCE(end_date, (to_date('01/01/2095'::text, 'DD/MM/YYYY'::text))::timestamp without time zone) <> start_d ate))
(25 rows)
Index Cond: (((pricing_method_code)::text = ANY ('{2,4}'::text[])) AND (start_date <= b.nap_rishum_date)) -> Materialize (cost=0.00..1407.38 rows=43933 width=4) -> Seq Scan on tv_discounts_details k (cost=0.00..1187.71 rows=43933 width=4)
Filter: ((percent IS NOT NULL) AND (start_month = 1))

I run vacuum analyze database before running the query. Some info about the tables :

ps_rf_inst_prod - 32G
nap_ip_discount-1G
tv_finterm - 100M
tc_finterms - 6G
TV_FINTERM - 1G

This query is part of an app that I migrated from oracle to postgresql. I dont want to change the query much, looking for a way to change the plan to make it faster.. I have indexes on ps_rf_inst_prod, when I delete the pipelines in :

AND a.setid || ''= 'SHARE'
AND b.setid || ''= 'SHARE'

the plan is changing and it uses indexes on ps_rf_inst_prod but it costs more and the performance are worse.

Please , HELP...


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