SELECT
empi.id, empi.repair_form_id, empi.picking_id, empi.warehouse_id, empi.warehouse_name, empi.vendor_id, empi.vendor_name, empi.material_id, empi.material_code,
empi.material_name,empi.material_specifications, empi.material_unit, empi.material_warranty_period, empi.reference_price, empi.selling_price, empi.collect_number,
empi.price, empi.money, empi.state, empi.create_by, empi.create_time, emp.return_number, emp.repair_number, emp.out_number
FROM erp_material_picking_info empi
LEFT JOIN erp_material_picking emp ON empi.picking_id = emp.id