My computer crashes when I excute the follwing statement:

"select 0,null, Sum(amount) from customers p group by 1,2"

I use Firebird 1.52 and IBOConsole. The database has few hundreds of
records.

I know that it is a stupid SQL statement, but it is the result of a
wizard, that of course, it can improved.

In any case, I guess that Firebird never should not crash the computer.

If I stop the Firebird Engine before the crash, I get the following
dataset result:

COLUMN0, COLUMN1, SUM
0, <null>, <null>
0, <null>, <null>
0, <null>, <null>
....


Hundreds of similar rows.

Is it a bug of Firebird?

Thank you