Extensions
Example
```sql
SELECT *
FROM sql_auto_complete('SEL');
```  
Returns:  
<div class="narrow_table"></div>  
| suggestion  | suggestion_start |
|-------------|------------------|
| SELECT      |                0 |
| DELETE      |                0 |
| INSERT      |                0 |
| CALL        |                0 |
| LOAD        |                0 |
| CALL        |                0 |
| ALTER       |                0 |
| BEGIN       |                0 |
| EXPORT      |                0 |
| CREATE      |                0 |
| PREPARE     |                0 |
| EXECUTE     |                0 |
| EXPLAIN     |                0 |
| ROLLBACK    |                0 |
| DESCRIBE    |                0 |
| SUMMARIZE   |                0 |
| CHECKPOINT  |                0 |
| DEALLOCATE  |                0 |
| UPDATE      |                0 |
| DROP        |                0 |