Added/Updated tests\bugs\gh_3812_test.py: Checked on 5.0.0.745 - all OK.

tests/bugs/gh_3812_test.py

@@ -0,0 +1,76 @@
+#coding:utf-8
+
+"""
+ID:          issue-3812
+ISSUE:       3812
+TITLE:       Query with SP doesn't accept explicit plan [CORE3451]
+NOTES:
+    [18.02.2023] pzotov
+    Confirmed problem on 5.0.0.743, got:
+        Statement failed, SQLSTATE = 42S02
+        -Invalid command
+        -there is no alias or table named TMP_SP1 at this scope level
+    Checked on 5.0.0.745 - all OK.
+"""
+
+import pytest
+from firebird.qa import *
+
+db = db_factory()
+
+test_script = """
+    set bail on;
+    recreate table tmp_tbl1(
+       fld1 int
+       ,fld2 int
+       ,fld3 int
+    );
+    create index tmp_tbl1_fld2 on tmp_tbl1(fld2);
+
+    recreate table tmp_tbl2(
+       fld1 int
+       ,fld2 int
+       ,fld3 int
+    );
+    create index tmp_tbl2_fld1 on tmp_tbl2(fld1);
+
+
+    recreate table tmp_tbl3(
+       fld1 int
+       ,fld2 int
+       ,fld3 int
+    );
+    create index tmp_tbl3_fld1 on tmp_tbl3(fld1);
+
+    set term ^;
+    create or alter procedure tmp_sp1 returns(fld1 int) as
+    begin
+        fld1 = 2;
+        suspend;
+    end
+    ^
+    set term ;^
+    commit;
+
+    set plan on;
+    select t2.fld1
+    from tmp_tbl2 t2
+    join tmp_tbl1 t1 on t1.fld1=t2.fld1
+    join tmp_sp1 on tmp_sp1.fld1=t1.fld2
+    join tmp_tbl3 t3 on t3.fld1=t1.fld3
+    where t2.fld2=2
+    PLAN JOIN (JOIN (TMP_SP1 NATURAL, T1 INDEX (TMP_TBL1_FLD2)), T2 INDEX (TMP_TBL2_FLD1), T3 INDEX (TMP_TBL3_FLD1))
+    ;
+"""
+
+act = isql_act('db', test_script)
+
+expected_stdout = """
+    PLAN JOIN (JOIN (TMP_SP1 NATURAL, T1 INDEX (TMP_TBL1_FLD2)), T2 INDEX (TMP_TBL2_FLD1), T3 INDEX (TMP_TBL3_FLD1))
+"""
+
+@pytest.mark.version('>=5.0')
+def test_1(act: Action):
+    act.expected_stdout = expected_stdout
+    act.execute(combine_output = True)
+    assert act.clean_stdout == act.clean_expected_stdout