Guo Xiang Tan 1f636c445b PERF: Add fast path to find uploads before resorting to LIKE query.
For a normal upload url

Before

```
Warming up --------------------------------------
                       264.000  i/100ms
Calculating -------------------------------------
                          2.754k (± 8.4%) i/s -     13.728k in   5.022066s
```

After

```
Warming up --------------------------------------
                       341.000  i/100ms
Calculating -------------------------------------
                          3.435k (±11.6%) i/s -     17.050k in   5.045676s
```
2018-09-06 14:44:24 +08:00
..
2017-07-24 21:46:08 +09:00
2017-09-25 13:49:00 +08:00
2018-08-10 16:08:07 +10:00
2018-06-20 10:44:11 +10:00
2018-04-26 17:24:16 +10:00
2018-08-14 12:43:57 +02:00
2018-05-25 15:54:14 +10:00