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Added/Updated tests\bugs\gh_7675_test.py: Checked on 6.0.0.65.

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pavel-zotov 2023-10-02 16:29:29 +03:00
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#coding:utf-8
"""
ID: issue-7675
ISSUE: https://github.com/FirebirdSQL/firebird/issues/7675
TITLE: EXPLAIN statement and RDB$SQL package
DESCRIPTION:
Test only ckecks ability to use RDB$SQL package as it is described in the doc.
More complex tests will be implemented later.
NOTES:
[02.10.2023] pzotov
Checked on 6.0.0.65.
"""
import pytest
from firebird.qa import *
init_sql = """
recreate table tdetl(id int primary key);
recreate table tmain(id int primary key using index tmain_pk, x int);
recreate table tdetl(id int primary key using index tdetl_pk, pid int references tmain using index tdetl_fk, y int, z int);
commit;
insert into tmain(id,x) select row_number()over(), -100 + rand()*200 from rdb$types rows 100;
insert into tdetl(id, pid, y,z) select row_number()over(), 1+rand()*99, rand()*1000, rand()*1000 from rdb$types;
commit;
create index tmain_x on tmain(x);
create index tdetl_y on tdetl(y);
create index tdetl_z on tdetl(z);
set statistics index tdetl_fk;
commit;
"""
db = db_factory(init = init_sql)
test_script = """
set list on;
select *
from rdb$sql.explain(
q'{
select m2.id, count(*)
from tmain m2
join tdetl d using(id)
where m2.x > 0
group by 1
}'
) p
order by p.plan_line;
"""
act = isql_act('db', test_script)
expected_stdout = """
PLAN_LINE 1
RECORD_SOURCE_ID 7
PARENT_RECORD_SOURCE_ID <null>
LEVEL 0
OBJECT_TYPE <null>
PACKAGE_NAME <null>
OBJECT_NAME <null>
ALIAS <null>
CARDINALITY <null>
RECORD_LENGTH <null>
KEY_LENGTH <null>
ACCESS_PATH 0:4
Select Expression
PLAN_LINE 2
RECORD_SOURCE_ID 6
PARENT_RECORD_SOURCE_ID 7
LEVEL 1
OBJECT_TYPE <null>
PACKAGE_NAME <null>
OBJECT_NAME <null>
ALIAS <null>
CARDINALITY 0.1000000000000000
RECORD_LENGTH <null>
KEY_LENGTH <null>
ACCESS_PATH 0:5
-> Aggregate
PLAN_LINE 3
RECORD_SOURCE_ID 5
PARENT_RECORD_SOURCE_ID 6
LEVEL 2
OBJECT_TYPE <null>
PACKAGE_NAME <null>
OBJECT_NAME <null>
ALIAS <null>
CARDINALITY 100.0000000000000
RECORD_LENGTH <null>
KEY_LENGTH <null>
ACCESS_PATH 0:6
-> Nested Loop Join (inner)
PLAN_LINE 4
RECORD_SOURCE_ID 2
PARENT_RECORD_SOURCE_ID 5
LEVEL 3
OBJECT_TYPE <null>
PACKAGE_NAME <null>
OBJECT_NAME <null>
ALIAS <null>
CARDINALITY 100.0000000000000
RECORD_LENGTH <null>
KEY_LENGTH <null>
ACCESS_PATH 0:7
-> Filter
PLAN_LINE 5
RECORD_SOURCE_ID 1
PARENT_RECORD_SOURCE_ID 2
LEVEL 4
OBJECT_TYPE 0
PACKAGE_NAME <null>
OBJECT_NAME TMAIN
ALIAS M2
CARDINALITY 100.0000000000000
RECORD_LENGTH <null>
KEY_LENGTH <null>
ACCESS_PATH 0:8
-> Table "TMAIN" as "M2" Access By ID
-> Index "TMAIN_PK" Full Scan
-> Bitmap
-> Index "TMAIN_X" Range Scan (lower bound: 1/1)
PLAN_LINE 6
RECORD_SOURCE_ID 4
PARENT_RECORD_SOURCE_ID 5
LEVEL 3
OBJECT_TYPE <null>
PACKAGE_NAME <null>
OBJECT_NAME <null>
ALIAS <null>
CARDINALITY 1.000000000000000
RECORD_LENGTH <null>
KEY_LENGTH <null>
ACCESS_PATH 0:9
-> Filter
PLAN_LINE 7
RECORD_SOURCE_ID 3
PARENT_RECORD_SOURCE_ID 4
LEVEL 4
OBJECT_TYPE 0
PACKAGE_NAME <null>
OBJECT_NAME TDETL
ALIAS D
CARDINALITY 0.9999999999999999
RECORD_LENGTH <null>
KEY_LENGTH <null>
ACCESS_PATH 0:a
-> Table "TDETL" as "D" Access By ID
-> Bitmap
-> Index "TDETL_PK" Unique Scan
"""
@pytest.mark.version('>=6.0')
def test_1(act: Action):
act.expected_stdout = expected_stdout
act.execute(combine_output = True)
assert act.clean_stdout == act.clean_expected_stdout