Odoo add table to pos view

diff -u addons/point_of_sale/report/pos_order_report.py.bk addons/point_of_sale/report/pos_order_report.py
--- addons/point_of_sale/report/pos_order_report.py.bk	2016-06-13 11:10:47.496000000 +0530
+++ addons/point_of_sale/report/pos_order_report.py	2016-06-12 17:58:42.005000000 +0530
@@ -26,6 +26,7 @@
         'nbr':fields.integer('# of Lines', readonly=True),  # TDE FIXME master: rename into nbr_lines
         'product_qty':fields.integer('Product Quantity', readonly=True),
         'journal_id': fields.many2one('account.journal', 'Journal'),
+        'table_id': fields.many2one('pos.order', 'Table', readonly=True),
         'delay_validation': fields.integer('Delay Validation'),
         'product_categ_id': fields.many2one('product.category', 'Product Category', readonly=True),
         'invoiced': fields.boolean('Invoiced', readonly=True),
@@ -73,6 +74,6 @@
                     left join pos_config pc on (ps.config_id=pc.id)
                 group by
                     s.date_order, s.partner_id,s.state, pt.categ_id,
-                    s.user_id,s.location_id,s.company_id,s.sale_journal,s.pricelist_id,s.invoice_id,l.product_id,s.create_date,pt.categ_id,pt.pos_categ_id,p.product_tmpl_id,ps.config_id,pc.stock_location_id
+                    s.user_id,s.location_id,s.company_id,s.sale_journal,s.pricelist_id,s.invoice_id,s.table_id,l.product_id,s.create_date,pt.categ_id,pt.pos_categ_id,p.product_tmpl_id,ps.config_id,pc.stock_location_id
                 having
                     sum(l.qty * u.factor) != 0)""")

diff -u  addons/point_of_sale/report/pos_order_report_view.xml.bk addons/point_of_sale/report/pos_order_report_view.xml
--- addons/point_of_sale/report/pos_order_report_view.xml.bk	2016-06-12 16:14:12.239000000 +0530
+++ addons/point_of_sale/report/pos_order_report_view.xml	2016-06-13 11:12:21.151000000 +0530
@@ -10,6 +10,7 @@
                     <field name="date" interval="month" type="col"/>
                     <field name="product_qty" type="measure"/>
                     <field name="price_total" type="measure"/>
+                    <field name="table_id" type="row"/>
                 </pivot>
             </field>
         </record>
@@ -42,6 +43,7 @@
                     <field name="user_id"/>
                     <field name="product_id"/>
                     <field name="product_categ_id"/>
+                    <field name="table_id"/>
                     <group expand="1" string="Group By">
                         <filter string="Salesperson" name="User" context="{'group_by':'user_id'}"/>
                         <filter string="Product Category" context="{'group_by':'product_categ_id'}"/>