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workflow.instance: remove excess indices 

It is a table with 4 columns, doesn't worth 5 indices! I hope that these
combined indexed plus the wkf_id one will allow Postgres to always come
up with a good plan.

bzr revid: p_christ@hol.gr-20101219200842-4vr72wqal2t8k2xq
This commit is contained in:
P. Christeas 2010-12-19 22:08:42 +02:00
parent 1dbaae147b
commit 91a0d108bf
1 changed files with 5 additions and 5 deletions
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10
bin/addons/base/ir/workflow/workflow.py
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@ -173,15 +173,15 @@ class wkf_instance(osv.osv):
_log_access = False
_columns = {
'wkf_id': fields.many2one('workflow', 'Workflow', ondelete='cascade', select=True),
'res_id': fields.integer('Resource ID', select=True),
'res_type': fields.char('Resource Object', size=64, select=True),
'state': fields.char('State', size=32, select=True),
'res_id': fields.integer('Resource ID'),
'res_type': fields.char('Resource Object', size=64),
'state': fields.char('State', size=32),
}
def _auto_init(self, cr, context=None):
super(wkf_instance, self)._auto_init(cr, context)
cr.execute('SELECT indexname FROM pg_indexes WHERE indexname = \'wkf_instance_res_id_res_type_state_index\'')
cr.execute('SELECT indexname FROM pg_indexes WHERE indexname = \'wkf_instance_res_type_res_id_state_index\'')
if not cr.fetchone():
cr.execute('CREATE INDEX wkf_instance_res_id_res_type_state_index ON wkf_instance (res_id, res_type, state)')
cr.execute('CREATE INDEX wkf_instance_res_type_res_id_state_index ON wkf_instance (res_type, res_id, state)')
cr.execute('SELECT indexname FROM pg_indexes WHERE indexname = \'wkf_instance_res_id_wkf_id_index\'')
if not cr.fetchone():
cr.execute('CREATE INDEX wkf_instance_res_id_wkf_id_index ON wkf_instance (res_id, wkf_id)')