I'm now stuck on calculation median on postgres because there is no function about calculation median in postgres. Following is my query and I want to get median value of that query. Please help me how to do it.
SELECT count, conversion, company_id FROM (SELECT count(ap.id),
(count(ap.id)/cast(NULLIF(SUM(j.views), 0) as float) * 100) AS conversion,
j.company_id FROM applications ap RIGHT JOIN jobs j ON ap.job_id = j.id GROUP BY j.company_id order by conversion) with_avg