Query returns in 0.32 seconds locally. Times out on DoltHub

This query:

```sql
SELECT * FROM `writings` WHERE phelps IS NULL ORDER BY RAND() LIMIT 10;
```

This returns in 0.32 seconds locally but times out on DoltHub, even with the new 60s query timeout.

https://www.dolthub.com/repositories/holywritings/bahaiwritings/query/main?active=Tables&q=SELECT+*%0AFROM+%60writings%60%0AWHERE+phelps+IS+NULL%0AORDER+BY+RAND()%0ALIMIT+10%3B%0A