> EXPLAIN ANALYZE SELECT "reblog_of_id" FROM "statuses" WHERE ("reblog_of_id" = 11 OR "reblog_of_id" IS NULL) AND "account_id" = 1 ORDER BY "id" DESC;
                                                                        QUERY PLAN
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 Sort  (cost=5391.51..5393.22 rows=3402 width=16) (actual time=49741.632..49741.844 rows=2716 loops=1)
   Sort Key: id DESC
   Sort Method: quicksort  Memory: 224kB
   ->  Bitmap Heap Scan on statuses  (cost=38.43..5351.60 rows=3402 width=16) (actual time=3130.508..49736.730 rows=2716 loops=1)
         Recheck Cond: (account_id = 1)
         Filter: ((reblog_of_id = 11) OR (reblog_of_id IS NULL))
         Rows Removed by Filter: 1167
         Heap Blocks: exact=1601
         ->  Bitmap Index Scan on index_statuses_on_account_id_id  (cost=0.00..38.26 rows=4114 width=0) (actual time=3130.144..3130.144 rows=3884 loops=1)
               Index Cond: (account_id = 1)
 Planning time: 0.204 ms
 Execution time: 49742.133 ms
(12 rows)

Time: 50096.524 ms