Results within radius - Optimising slow MySQL query

Question

SELECT property.paon, property.saon, property.street, property.postcode, property.lastSalePrice, property.lastTransferDate,
 epc.ADDRESS1, epc.POSTCODE, epc.TOTAL_FL         


        

Answer 1

Do you control the database? If you do, you could try adding indexes on the address and postcode columns (anything in the join clause). That should probably speed up the query.

Edit: reread your question.

If the GROUP BY and ORDER BY clauses are slowing it down, I would try adding indexes on the columns referenced in those clauses.