```
select log(cast(1 as float), cast (1.5 as float)) from RDB$DATABASE
```

When tryting to run it returns unspecified error.

For comparison, a similar query returns correct error message:

```
select cast(log(1, 1.5) as float) from RDB$DATABASE
```


Also, i can not add FBfilddle and Firebird tags to the questions, dunno why. They are simple ignored....

UPD. But i can publish the quesiton and add tags later. However it is not possible to add tags while editing. Weird.