Hi All
I am facing query performance in one of my testing server.
How i can create index with table column name ?
EXPLAIN select xxx.* from xxx xxx where exists (select 1 from tmp where mdc_domain_reverse like xxx.reverse_pd || '.%');
QUERY PLAN
-------------------------------------------------------------------------------------------Nested Loop Semi Join (cost=0.00..315085375.74 rows=63 width=3142) Join Filter: ((tmp.mdc_domain_reverse)::text ~~ ((xxx.reverse_pd)::text || '.%'::text)) -> Seq Scan on xxx (cost=0.00..6276.47 rows=12547 width=3142) -> Materialize (cost=0.00..31811.93 rows=1442062 width=17) -> Seq Scan on tmp (cost=0.00..24601.62 rows=1442062 width=17)
saleshub=# EXPLAIN create table tmp2 as select xxx.* from xxx xxx where exists (select 1 from tmp where mdc_domain_reverse like 'moc.ytirucesspc%') ; QUERY PLAN
------------------------------------------------------------------------------------------------------------------------------------------------Result (cost=0.06..6276.53 rows=12547 width=3142) One-Time Filter: $0 InitPlan 1 (returns $0) -> Index Scan using tmp_txt_idx_mdc on tmp (cost=0.00..8.53 rows=144 width=0) Index Cond: (((mdc_domain_reverse)::text ~>=~ 'moc.ytirucesspc'::text) AND ((mdc_domain_reverse)::text ~<~ 'moc.ytirucesspd'::text)) Filter: ((mdc_domain_reverse)::text ~~ 'moc.ytirucesspc%'::text) -> Seq Scan on xxx (cost=0.00..6276.47 rows=12547 width=3142)
