From 1644708fe8e77d7527e9cfc50fdf2e28c55bf111 Mon Sep 17 00:00:00 2001
From: Christophe Simonis <chs@odoo.com>
Date: Tue, 12 Aug 2014 18:38:55 +0200
Subject: [PATCH] [IMP] models.py: _auto_init: accelerate row existance check

Using `COUNT(1)` on big table can be slow. Use `min(id)` which use
pkey index to have a quicker response
---
 openerp/models.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/openerp/models.py b/openerp/models.py
index e8b531a8f64..bbcee1f3890 100644
--- a/openerp/models.py
+++ b/openerp/models.py
@@ -2474,8 +2474,8 @@ class BaseModel(object):
                 self._create_table(cr)
                 has_rows = False
             else:
-                cr.execute('SELECT COUNT(1) FROM "%s"' % (self._table,))
-                has_rows = cr.fetchone()[0]
+                cr.execute('SELECT min(id) FROM "%s"' % (self._table,))
+                has_rows = cr.fetchone()[0] is not None
 
             cr.commit()
             if self._parent_store: