Added/Updated tests\bugs\gh_7467_test.py: Checked on 5.0.0.932; 4.0.3.2900; 3.0.11.33664 -- all fine.

tests/bugs/gh_7467_test.py

@@ -0,0 +1,33 @@
+#coding:utf-8
+
+"""
+ID:          issue-7467
+ISSUE:       7467
+TITLE:       Simple SQL crashes firebird: select cast(rdb$db_key as integer) from rdb$database
+NOTES:
+    [14.02.2023] pzotov
+    Confirmed crash on 5.0.0.823; 4.0.3.2894; 3.0.10.33657
+    Checked on 5.0.0.932; 4.0.3.2900; 3.0.11.33664 -- all fine.
+"""
+
+import pytest
+from firebird.qa import *
+
+db = db_factory()
+
+test_script = """
+    select cast(rdb$db_key as integer) from rdb$database;
+"""
+
+act = isql_act('db', test_script)
+
+expected_stderr = """
+    Statement failed, SQLSTATE = 22018
+    conversion error from string "DBKEY"
+"""
+
+@pytest.mark.version('>=3.0')
+def test_1(act: Action):
+    act.expected_stderr = expected_stderr
+    act.execute()
+    assert act.clean_stderr == act.clean_expected_stderr