Added/Updated tests\bugs\gh_7995_test.py: Checked on 5.0.1.1332 (commit ffb54229).

Author: pavel-zotov

tests/bugs/gh_7995_test.py

@@ -0,0 +1,92 @@
+#coding:utf-8
+
+"""
+ID:          issue-7995
+ISSUE:       https://github.com/FirebirdSQL/firebird/issues/7995
+TITLE:       Unexpected results after creating partial index
+NOTES:
+    [07.02.2024] pzotov
+    Confirmed bug on 6.0.0.249, 5.0.1.1331.
+    Checked on 5.0.1.1332 (commit ffb54229).
+"""
+
+import pytest
+from firebird.qa import *
+
+db = db_factory()
+
+test_script = """
+    recreate table t0(c0 boolean);
+    recreate table t1(c0 int, c1 int);
+    create unique index t1i0 on t1(c0) where ( t1.c0 is not null );
+
+    insert into t0 (c0) values (true);
+    insert into t0 (c0) values (false);
+    insert into t1 (c0, c1) values (0, 1);
+    insert into t1 (c0) values (1);
+    insert into t1 (c0) values (2);
+    insert into t1 (c0) values (3);
+    insert into t1 (c0) values (4);
+    insert into t1 (c0) values (5);
+    insert into t1 (c0) values (6);
+    insert into t1 (c0) values (7);
+    insert into t1 (c0) values (8);
+    insert into t1 (c0) values (9);
+    insert into t1 (c0) values (10); -- at least 11 rows data
+
+    set heading off;
+    set count on;
+
+    select ((true or t1.c1 > 0)and(t0.c0)) from t1 cross join t0; -- 11 rows of true
+
+    select t1.c0 as t1_c0, t1.c1 as t1_c1, t0.c0 as t0_c0 from t1 cross join t0 where ( (true or t1.c1 > 0) and t0.c0);
+"""
+
+act = isql_act('db', test_script, substitutions = [('[ \t]+', ' ')])
+
+expected_stdout = """
+    <true>
+    <true>
+    <true>
+    <true>
+    <true>
+    <true>
+    <true>
+    <true>
+    <true>
+    <true>
+    <true>
+    <false>
+    <false>
+    <false>
+    <false>
+    <false>
+    <false>
+    <false>
+    <false>
+    <false>
+    <false>
+    <false>
+
+    Records affected: 22
+
+     0            1 <true>
+     1       <null> <true>
+     2       <null> <true>
+     3       <null> <true>
+     4       <null> <true>
+     5       <null> <true>
+     6       <null> <true>
+     7       <null> <true>
+     8       <null> <true>
+     9       <null> <true>
+    10       <null> <true>
+
+    Records affected: 11
+"""
+
+@pytest.mark.version('>=5.0.1')
+def test_1(act: Action):
+    act.expected_stdout = expected_stdout
+    act.execute(combine_output = True)
+    assert act.clean_stdout == act.clean_expected_stdout