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|
# name: test/optimizer/regex_optimizer.test
# description: Test Regex Optimization Rules
# group: [optimizer]
statement ok
CREATE TABLE test(s VARCHAR);
statement ok
PRAGMA explain_output = OPTIMIZED_ONLY;
statement ok
INSERT INTO test VALUES ('aaa');
# contains optimization: /aaa/ -> contains(aaa)
query I nosort regexconstantpattern
EXPLAIN SELECT regexp_matches(s, 'aa') FROM test
----
query I nosort regexconstantpattern
EXPLAIN SELECT contains(s, 'aa') FROM test
----
# contains optimization: /a/ -> contains(aaa)
query I nosort regexconstantsinglechar
EXPLAIN SELECT regexp_matches(s, 'a') FROM test
----
query I nosort regexconstantsinglechar
EXPLAIN SELECT contains(s, 'a') FROM test
----
query I nosort correct_result
SELECT regexp_matches(s, '[a]') FROM test
----
query I nosort correct_result
SELECT regexp_matches(s, 'a') FROM test
----
query I nosort correct_result
SELECT contains(s, 'aaa') FROM test
----
query I nosort correct_result
SELECT regexp_matches(s, '^a') FROM TEST;
----
aaa
query I nosort correct_result
SELECT regexp_matches(s, '^aa') FROM TEST;
----
aaa
statement ok
DELETE FROM test;
statement ok
INSERT INTO test VALUES ('aaa'), ('a.a'), ('baba'), ('abba'), ('a\.a'), ('a_a');
query II
explain analyze select regexp_matches(s, 'a.a', 's'), s from test;
----
analyzed_plan <REGEX>:.*"~~"\(s, '%a_a%'\).*
query I nosort
select s from test where regexp_matches(s, 'a.a', 's');
----
aaa
a.a
baba
a_a
query II
explain analyze SELECT regexp_matches(s, 'a.*a', 's'), s FROM TEST;
----
analyzed_plan <REGEX>:.*"~~"\(s, '%a%a%'\).*
query I nosort
SELECT s FROM TEST where regexp_matches(s, 'a.*a', 's');
----
aaa
a.a
baba
abba
a\.a
a_a
query II
explain analyze SELECT regexp_matches(s, '^a.*b$', 's'), s FROM TEST;
----
analyzed_plan <REGEX>:.*"~~"\(s, 'a%b'\).*
query I
SELECT s FROM TEST where regexp_matches(s, '^a.*b$', 's');
----
query II
explain analyze select regexp_matches(s, 'a_a'), s from test;
----
analyzed_plan <REGEX>:.*contains\(s, 'a_a'\).*
query II
explain analyze select regexp_matches(s, 'a%a'), s from test;
----
analyzed_plan <REGEX>:.*contains\(s, 'a%a'\).*
query II
explain analyze select regexp_matches(s, 'a\\a'), s from test;
----
analyzed_plan <REGEX>:.*contains\(s, 'a\\a'\).*
query I
select s from test where regexp_matches(s, 'a_a');
----
a_a
query II
explain analyze select regexp_matches(s, 'a\.a'), s from test;
----
analyzed_plan <REGEX>:.*contains\(s, 'a.a'\).*
query I
select s from test where regexp_matches(s, 'a\.a');
----
a.a
query II
explain analyze SELECT regexp_matches(s, '^a'), s FROM TEST;
----
analyzed_plan <REGEX>:.*prefix\(s, 'a'\).*
query I nosort
SELECT s FROM TEST where regexp_matches(s, '^a');
----
aaa
a.a
abba
a\.a
a_a
query II
explain analyze SELECT regexp_matches(s, 'a$'), s FROM TEST;
----
analyzed_plan <REGEX>:.*suffix\(s, 'a'\).*
query I nosort
SELECT s FROM TEST where regexp_matches(s, 'a$');
----
aaa
a.a
baba
abba
a\.a
a_a
query II
explain analyze SELECT regexp_matches(s, 'aaa.'), s FROM TEST;
----
analyzed_plan <REGEX>:.*regexp_matches\(s, 'aaa.'\).*
query II
explain analyze SELECT regexp_matches(s, 'aaa.', 's'), s FROM TEST;
----
analyzed_plan <REGEX>:.*"~~"\(s, '%aaa_%'\).*
query II
explain analyze SELECT regexp_matches(s, '.aaa', 's'), s FROM TEST;
----
analyzed_plan <REGEX>:.*"~~"\(s, '%_aaa%'\).*
query II
explain analyze SELECT regexp_matches(s, '^.aaa', 's'), s FROM TEST;
----
analyzed_plan <REGEX>:.*"~~"\(s, '_aaa%'\).*
query II
explain analyze SELECT regexp_matches(s, '.aaa$', 's'), s FROM TEST;
----
analyzed_plan <REGEX>:.*"~~"\(s, '%_aaa'\).*
query II
explain analyze select regexp_matches(s, '.*green.*', 's'), s, from test;
----
analyzed_plan <REGEX>:.*contains\(s, 'green'\).*
query II
explain analyze select regexp_matches(s, '.*special.*requests.*', 's'), s from test;
----
analyzed_plan <REGEX>:.*"~~".s, '%special%requests.*%.*
statement ok
DELETE from test;
# Test matching newlines with and without 's' option
# inserts 'aaa\naaa'
statement ok
insert into test values (concat('aaa', chr(10), 'aaa'));
query I
select count(s) from test where regexp_matches(s, 'aaa');
----
1
# no matches since 's' option not passed
query I
select count(s) from test where regexp_matches(s, 'aaa.');
----
0
# 's' option passed, so we match the string aaa\naaa
query I
select count(s) from test where regexp_matches(s, 'aaa.', 's');
----
1
# when regexp_matches arguments are incorrect, an error is produced
statement error
select count(s) from test where regexp_matches(s);
----
Binder Error
# when regexp_matches arguments are incorrect, an error is produced
statement error
select count(s) from test where regexp_matches('aaa');
----
Binder Error
# Test regexp_matches with flags (like 'm') is properly optimized to contains
statement ok
DELETE FROM test;
statement ok
INSERT INTO test VALUES ('hello world'), ('test'), ('hello again');
query II
explain analyze SELECT s FROM test WHERE regexp_matches(s, 'hello', 'm');
----
analyzed_plan <REGEX>:.*contains\(s, 'hello'\).*
query I nosort
SELECT s FROM test WHERE regexp_matches(s, 'hello', 'm');
----
hello world
hello again
# This used to trigger a debug assertion
query I
WITH fetch_schema AS (
SELECT s FROM test WHERE regexp_matches(s, 'hello', 'm')
) SELECT * FROM fetch_schema LIMIT 0;
----
|
