firebird-qa/tests/bugs/gh_6873_test.py

#coding:utf-8
#
# id:           bugs.gh_6873
# title:        SIMILAR TO does not use index when pattern starts with non-wildcard character (in contrary to LIKE)
# decription:   
#                   https://github.com/FirebirdSQL/firebird/issues/6873
#               	
#                   Checked on: 5.0.0.113.
#                
# tracker_id:   
# min_versions: ['5.0']
# versions:     5.0
# qmid:         None

import pytest
from firebird.qa import db_factory, isql_act, Action

# version: 5.0
# resources: None

substitutions_1 = []

init_script_1 = """"""

db_1 = db_factory(sql_dialect=3, init=init_script_1)

test_script_1 = """
	create collation name_coll_ci for utf8 from unicode case insensitive;
	create collation name_coll_ci_ai for utf8 from unicode case insensitive accent insensitive;

	create domain dm_name_ci as varchar(10) character set utf8 collate name_coll_ci;
	create domain dm_name_ci_ai as varchar(10) character set utf8 collate name_coll_ci_ai;

	recreate table test(
		 id int generated by default as identity constraint test_pk primary key
		,x1 varchar(10)
		,y1 varchar(10)
		,x2 dm_name_ci
		,y2 dm_name_ci
		,x3 dm_name_ci_ai
		,y3 dm_name_ci_ai
	);

	insert into test(x1, x2, x3) values('',    '',   ''   );
	insert into test(x1, x2, x3) values('a',   'Ⱥ',  'Ă'  );
	insert into test(x1, x2, x3) values(' a',  ' Ⱥ', ' Ă' );
	insert into test(x1, x2, x3) values('aa',  'ȺȺ', 'ĂĂ' );
	update test set y1 = x1, y2 = x2, y3 = x3;
	commit;

	create index test_x1_asc on test(x1);
	create descending index test_y1_dec on test(y1);
	create index test_x2_asc on test(x2);
	create descending index test_y2_dec on test(y2);
	create index test_x3_asc on test(x3);
	create descending index test_y3_dec on test(y3);
	commit;

	set list on;
	set plan on;

	-- All following statements must use apropriate INDEXES:
	--set echo on;

	select id from test where x1 similar to 'a%';

	select id from test where x1 similar to 'a_';

	select id from test where x1 similar to 'a';



	select id from test where y1 similar to 'a%';

	select id from test where y1 similar to 'a_';

	select id from test where y1 similar to 'a';



	select id from test where x2 similar to 'ⱥ%';

	select id from test where x2 similar to 'ⱥ_';

	select id from test where x2 similar to 'ⱥ';




	select id from test where y2 similar to 'ⱥ%';

	select id from test where y2 similar to 'ⱥ_';

	select id from test where y2 similar to 'ⱥ';




	select id from test where x3 similar to 'Â%';

	select id from test where x3 similar to 'Â_';

	select id from test where x3 similar to 'Â';




	select id from test where y3 similar to 'Â%';

	select id from test where y3 similar to 'Â_';

	select id from test where y3 similar to 'Â';
  
"""

act_1 = isql_act('db_1', test_script_1, substitutions=substitutions_1)

expected_stdout_1 = """
	PLAN (TEST INDEX (TEST_X1_ASC))
	ID                              2
	ID                              4

	PLAN (TEST INDEX (TEST_X1_ASC))
	ID                              4

	PLAN (TEST INDEX (TEST_X1_ASC))
	ID                              2

	PLAN (TEST INDEX (TEST_Y1_DEC))
	ID                              2
	ID                              4

	PLAN (TEST INDEX (TEST_Y1_DEC))
	ID                              4

	PLAN (TEST INDEX (TEST_Y1_DEC))
	ID                              2

	PLAN (TEST INDEX (TEST_X2_ASC))
	ID                              2
	ID                              4

	PLAN (TEST INDEX (TEST_X2_ASC))
	ID                              4

	PLAN (TEST INDEX (TEST_X2_ASC))
	ID                              2

	PLAN (TEST INDEX (TEST_Y2_DEC))
	ID                              2
	ID                              4

	PLAN (TEST INDEX (TEST_Y2_DEC))
	ID                              4

	PLAN (TEST INDEX (TEST_Y2_DEC))
	ID                              2

	PLAN (TEST INDEX (TEST_X3_ASC))
	ID                              2
	ID                              4

	PLAN (TEST INDEX (TEST_X3_ASC))
	ID                              4

	PLAN (TEST INDEX (TEST_X3_ASC))
	ID                              2

	PLAN (TEST INDEX (TEST_Y3_DEC))
	ID                              2
	ID                              4

	PLAN (TEST INDEX (TEST_Y3_DEC))
	ID                              4

	PLAN (TEST INDEX (TEST_Y3_DEC))
	ID                              2  
"""

@pytest.mark.version('>=5.0')
def test_1(act_1: Action):
    act_1.expected_stdout = expected_stdout_1
    act_1.execute()
    assert act_1.clean_stdout == act_1.clean_expected_stdout