Development
Query Labels
Another feature that can be used for result verification are `query labels`. These can be used to verify that different queries provide the same result. This is useful for comparing queries that are logically equivalent, but formulated differently. Query labels are provided after the connection label or sorting specifier.  
Queries that have a query label do not need to have a result provided. Instead, the results of each of the queries with the same label are compared to each other. For example, the following script verifies that the queries `SELECT 42+1` and `SELECT 44-1` provide the same result:  
```sql
query I nosort r43
SELECT 42+1;
----

query I nosort r43
SELECT 44-1;
----
```