text: # Copyright (c) 2013, Frappe Technologies Pvt. Ltd. and contributors
  # For license information, please see license.txt
  
  from __future__ import unicode_literals
  import frappe
  
  def execute(filters=None):
  	columns = [
  		{
  			'fieldname': 'creation_date',
  			'label': 'Date',
  			'fieldtype': 'Date'
  		},
  		{
  			'fieldname': 'mins',
  			'fieldtype': 'Float',
  			'label': 'Mins to First Response'
  		},
  	]
  
  	data = frappe.db.sql('''select date(creation) as creation_date,
  		avg(mins_to_first_response) as mins
  		from tabIssue
  			where date(creation) between %s and %s
  			and mins_to_first_response > 0
  		group by creation_date order by creation_date desc''', (filters.from_date, filters.to_date))
  
  	return columns, data
  