title: django database for large data comparison
body: <p>I am having a large data set (number based data, for example, 200,000 rows of numbers) in django database, and the client will pass in another set of data, for example 100-500 pieces of number based data, then the server needs to find out what numbers are already in the database from the data passed in. Let's say the number data are phone numbers. If I just do the regular number comparison, the server cant even handle 2-3 requests from clients.</p>
  
  <p>Please suggest me some solution for my problem.</p>