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[Launchpad Bug Tracker <571595@xxxxxxxxxxxxxxxxxx>]

** Branch linked: lp:~openerp-dev/openobject-addons/trunk-dev-addons3

-- 
performance account_move_line needs index on partner_id
https://bugs.launchpad.net/bugs/571595
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Status in OpenObject Addons Modules: Fix Released

Bug description:
reduction ~ 90%
payables and receivables access account_move_lines using partner_id

before
                                                   QUERY PLAN                                                    
-----------------------------------------------------------------------------------------------------------------
 HashAggregate  (cost=1351.87..1351.89 rows=1 width=21)
   ->  Nested Loop  (cost=3.17..1351.86 rows=1 width=21)
         ->  Nested Loop IN Join  (cost=3.17..1335.75 rows=2 width=20)
               Join Filter: (l.period_id = account_period.id)
               ->  Seq Scan on account_move_line l  (cost=0.00..1328.75 rows=34 width=24)
                     Filter: ((reconcile_id IS NULL) AND ((state)::text <> 'draft'::text) AND (partner_id = 20))
               ->  Materialize  (cost=3.17..3.22 rows=5 width=4)
                     ->  Seq Scan on account_period  (cost=0.00..3.17 rows=5 width=4)
                           Filter: (fiscalyear_id = ANY ('{1,2,3,5,6}'::integer[]))
         ->  Index Scan using account_account_pkey on account_account a  (cost=0.00..8.04 rows=1 width=9)
               Index Cond: (a.id = l.account_id)
               Filter: ((a.type)::text = ANY ('{receivable,payable}'::text[]))

create index chricar_account_move_line_partner_id on account_move_line (partner_id);

after
 HashAggregate  (cost=84.41..84.43 rows=1 width=21)
   ->  Nested Loop  (cost=7.63..84.40 rows=1 width=21)
         ->  Hash IN Join  (cost=7.63..76.11 rows=1 width=20)
               Hash Cond: (l.period_id = account_period.id)
               ->  Bitmap Heap Scan on account_move_line l  (cost=4.40..72.81 rows=17 width=24)
                     Recheck Cond: (partner_id = 20)
                     Filter: ((reconcile_id IS NULL) AND ((state)::text <> 'draft'::text))
                     ->  Bitmap Index Scan on chricar_account_move_line_partner_id  (cost=0.00..4.39 rows=19 width=0)
                           Index Cond: (partner_id = 20)
               ->  Hash  (cost=3.17..3.17 rows=5 width=4)
                     ->  Seq Scan on account_period  (cost=0.00..3.17 rows=5 width=4)
                           Filter: (fiscalyear_id = ANY ('{1,2,3,5,6}'::integer[]))
         ->  Index Scan using account_account_pkey on account_account a  (cost=0.00..8.28 rows=1 width=9)
               Index Cond: (a.id = l.account_id)
               Filter: ((a.type)::text = ANY ('{receivable,payable}'::text[]))


BVTW - the docu says
select: True - (creates an index on the Foreign Key field)
so what does select=2 mean ?