mirror of
https://github.com/FirebirdSQL/firebird-qa.git
synced 2025-01-22 21:43:06 +01:00
93 lines
2.4 KiB
Python
93 lines
2.4 KiB
Python
#coding:utf-8
|
|
|
|
"""
|
|
ID: issue-1595
|
|
ISSUE: 1595
|
|
TITLE: Expression index based on computed fields
|
|
DESCRIPTION: Index based on COMPUTED-BY column must be taken in account by optimizer.
|
|
JIRA: CORE-1173
|
|
FBTEST: bugs.core_1173
|
|
"""
|
|
|
|
import pytest
|
|
from firebird.qa import *
|
|
|
|
db = db_factory()
|
|
|
|
test_script = """
|
|
create sequence g;
|
|
recreate table test (
|
|
fcode integer not null,
|
|
fdate date not null,
|
|
ftime time not null,
|
|
fcomp computed by (fdate+ftime),
|
|
constraint test_pk primary key (fcode)
|
|
);
|
|
|
|
insert into test(fcode, fdate, ftime)
|
|
select gen_id(g,1), dateadd( gen_id(g,1) day to cast('01.01.2010' as date) ), dateadd( gen_id(g,1) second to cast('00:00:00' as time) ) from rdb$types rows 200;
|
|
commit;
|
|
|
|
-- #########################################################################
|
|
|
|
-- Index on COMPUTED BY field, ascending:
|
|
create index test_on_computed_field_asc on test computed by (fcomp);
|
|
commit;
|
|
|
|
set plan on;
|
|
|
|
select * from test where fcomp>'now' rows 0;
|
|
commit;
|
|
|
|
drop index test_on_computed_field_asc;
|
|
commit;
|
|
|
|
-- COMPUTED-BY index with expression equal to computed-by column, ascending:
|
|
create index test_fdate_ftime_asc on test computed by (fdate+ftime);
|
|
select * from test where fcomp>'now' rows 0;
|
|
commit;
|
|
|
|
drop index test_fdate_ftime_asc;
|
|
commit;
|
|
|
|
-- #########################################################################
|
|
|
|
-- Index on COMPUTED BY field, descending:
|
|
create descending index test_on_computed_field_dec on test computed by (fcomp);
|
|
commit;
|
|
|
|
set plan on;
|
|
|
|
select * from test where fcomp>'now' rows 0;
|
|
commit;
|
|
|
|
drop index test_on_computed_field_dec;
|
|
commit;
|
|
|
|
-- COMPUTED-BY index with expression equal to computed-by column, decending:
|
|
create descending index test_fdate_ftime_dec on test computed by (fdate+ftime);
|
|
select * from test where fcomp>'now' rows 0;
|
|
commit;
|
|
|
|
drop index test_fdate_ftime_dec;
|
|
commit;
|
|
|
|
set plan off;
|
|
"""
|
|
|
|
act = isql_act('db', test_script)
|
|
|
|
expected_stdout = """
|
|
PLAN (TEST INDEX (TEST_ON_COMPUTED_FIELD_ASC))
|
|
PLAN (TEST INDEX (TEST_FDATE_FTIME_ASC))
|
|
PLAN (TEST INDEX (TEST_ON_COMPUTED_FIELD_DEC))
|
|
PLAN (TEST INDEX (TEST_FDATE_FTIME_DEC))
|
|
"""
|
|
|
|
@pytest.mark.version('>=3')
|
|
def test_1(act: Action):
|
|
act.expected_stdout = expected_stdout
|
|
act.execute()
|
|
assert act.clean_stdout == act.clean_expected_stdout
|
|
|