title: DynamoDB Query to return multiple items
body: <p>I am having a problem to solve this issue in DynamoDB. I need to create a table of sellers and their location expressed as Long and Lat attributes. </p>
  
  <p>Now if I have a Buyer. I need to return all sellers within 1 Mile radius of the buyer.</p>
  
  <p>How do I structure my seller table, and if I need a GSI what do I do there? Assuming that I have a formula that works out the starting long/lat and ending long/lat. So I need DynamoDB to return any sellers located in between the lower and upper boundaries.</p>
  
  <p>Also what partitioning logic do I need to adopt?</p>
  
  <p>Thank you in advance!</p>