Optimizing ORDER BY

Question

I am trying to optimize this query that sorts posts by reputation field (1st) and then id field (2nd). Without 1st field query takes ~0.25

Answer 1

Perhaps an index with columns: id, reputation, created_at could help to speed up a bit, That would be the easiest solution, if you did not try that yet. The DBMS would not have to read so much data, to calculate the offset, limit - affected records.