Added/Updated tests\bugs\gh_7461_test.py: Checked on 4.0.4.3021, 5.0.0.1271, 6.0.0.219

tests/bugs/gh_7461_test.py

@@ -0,0 +1,78 @@
+#coding:utf-8
+
+"""
+ID:          issue-7461
+ISSUE:       https://github.com/FirebirdSQL/firebird/issues/7461
+TITLE:       Differences in field metadata descriptions between Firebird 2.5 and Firebird 4
+NOTES:
+    [21.01.2024] pzotov
+
+    NB: original title of ticket was changed. Commits refer to pull reuest rather than to this ticket number:
+        FB 4.x (16.11.2023): https://github.com/FirebirdSQL/firebird/commit/2886cd78991209842ee7e3065bde83ab75571af4
+        FB 5.x (17.11.2023): https://github.com/FirebirdSQL/firebird/commit/1ed7f81f168b643a29357fce2e1f49156e9f5a1f
+        FB 6.x (17.11.2023): https://github.com/FirebirdSQL/firebird/commit/ab6aced05723dc1b2e6bb96bfdaa86cb3090daf2
+    Actual text of commits:
+    FB 4.x:
+        Merge pull request #7848 from medi6/4.0.2
+        Differencies in queries results between Firebird 2.5 and Firebird 4
+    FB 5.x and 6.x:
+        correction metaData
+
+    Before fix:
+        01: sqltype: 580 INT64 Nullable scale: -2 subtype: 1 len: 8
+          :  name:   alias: SALARY                                       ---
+          : table:   owner: 
+        02: sqltype: 496 LONG Nullable scale: 0 subtype: 0 len: 4
+          :  name:   alias: EMP_NO                                       ---
+          : table:   owner:                                              ---
+
+    After fix:
+        01: sqltype: 580 INT64 Nullable scale: -2 subtype: 1 len: 8
+          :  name: MAX  alias: SALARY                                    +++
+          : table:   owner: 
+        02: sqltype: 496 LONG Nullable scale: 0 subtype: 0 len: 4
+          :  name: EMP_NO  alias: EMP_NO                                 +++
+          : table: SALARY_HISTORY  owner: SYSDBA                         +++
+
+    Confirmed bug on 4.0.4.3016, 5.0.0.1268
+    Checked on 4.0.4.3021 (build date: 17-nov-2023), 5.0.0.1271 (build date: 18-nov-2023); 6.0.0.219
+"""
+
+import pytest
+from firebird.qa import *
+
+db = db_factory()
+
+test_script = """
+    recreate table employee(emp_no int);
+    recreate table salary_history(emp_no int, new_salary numeric(10,2));
+
+    set sqlda_display on;
+    set planonly;
+
+    select t.*
+    from employee e
+    left outer join
+        (
+            select max(h.new_salary) as salary,h.emp_no
+            from salary_history h
+            group by h.emp_no
+        ) t on e.emp_no = t.emp_no
+    ;
+"""
+
+act = isql_act('db', test_script, substitutions=[('^((?!name:|table:).)*$', ''), ('[ \t]+', ' ')])
+
+@pytest.mark.version('>=4.0.5')
+def test_1(act: Action):
+
+    expected_stdout = f"""
+        :  name: MAX  alias: SALARY
+        : table:   owner:
+        :  name: EMP_NO  alias: EMP_NO
+        : table: SALARY_HISTORY  owner: {act.db.user}
+    """
+
+    act.expected_stdout = expected_stdout
+    act.execute(combine_output = True)
+    assert act.clean_stdout == act.clean_expected_stdout