mariadb/percona-suite/percona_query_cache_with_comments_prepared_statements.result

set GLOBAL query_cache_size=1355776;
flush query cache;
flush query cache;
reset query cache;
flush status;
drop table if exists t1;
create table t1 (a int not null);
insert into t1 values (1),(2),(3);
set global query_cache_strip_comments=ON;
show status like "Qcache_queries_in_cache";
Variable_name	Value
Qcache_queries_in_cache	0
show status like "Qcache_inserts";
Variable_name	Value
Qcache_inserts	0
show status like "Qcache_hits";
Variable_name	Value
Qcache_hits	0
prepare stmt from '/* with comment */ select * from t1';
execute stmt;
a
1
2
3
show status like "Qcache_queries_in_cache";
Variable_name	Value
Qcache_queries_in_cache	1
show status like "Qcache_inserts";
Variable_name	Value
Qcache_inserts	1
show status like "Qcache_hits";
Variable_name	Value
Qcache_hits	0
execute stmt;
a
1
2
3
execute stmt;
a
1
2
3
execute stmt;
a
1
2
3
execute stmt;
a
1
2
3
execute stmt;
a
1
2
3
show status like "Qcache_queries_in_cache";
Variable_name	Value
Qcache_queries_in_cache	1
show status like "Qcache_inserts";
Variable_name	Value
Qcache_inserts	1
show status like "Qcache_hits";
Variable_name	Value
Qcache_hits	5
prepare stmt from 'select * from t1';
execute stmt;
a
1
2
3
show status like "Qcache_queries_in_cache";
Variable_name	Value
Qcache_queries_in_cache	1
show status like "Qcache_inserts";
Variable_name	Value
Qcache_inserts	1
show status like "Qcache_hits";
Variable_name	Value
Qcache_hits	6
prepare stmt from 'select * /*internal comment*/from t1';
execute stmt;
a
1
2
3
show status like "Qcache_queries_in_cache";
Variable_name	Value
Qcache_queries_in_cache	1
show status like "Qcache_inserts";
Variable_name	Value
Qcache_inserts	1
show status like "Qcache_hits";
Variable_name	Value
Qcache_hits	7
prepare stmt from 'select * /*internal comment*/ from t1';
execute stmt;
a
1
2
3
show status like "Qcache_queries_in_cache";
Variable_name	Value
Qcache_queries_in_cache	1
show status like "Qcache_inserts";
Variable_name	Value
Qcache_inserts	1
show status like "Qcache_hits";
Variable_name	Value
Qcache_hits	8
prepare stmt from 'select * from t1 /* at the end */';
execute stmt;
a
1
2
3
show status like "Qcache_queries_in_cache";
Variable_name	Value
Qcache_queries_in_cache	1
show status like "Qcache_inserts";
Variable_name	Value
Qcache_inserts	1
show status like "Qcache_hits";
Variable_name	Value
Qcache_hits	9
prepare stmt from 'select * from t1 /* with "quote" */';
execute stmt;
a
1
2
3
show status like "Qcache_queries_in_cache";
Variable_name	Value
Qcache_queries_in_cache	1
show status like "Qcache_inserts";
Variable_name	Value
Qcache_inserts	1
show status like "Qcache_hits";
Variable_name	Value
Qcache_hits	10
prepare stmt from 'select * from t1 /* with \'quote\' */';
execute stmt;
a
1
2
3
show status like "Qcache_queries_in_cache";
Variable_name	Value
Qcache_queries_in_cache	1
show status like "Qcache_inserts";
Variable_name	Value
Qcache_inserts	1
show status like "Qcache_hits";
Variable_name	Value
Qcache_hits	11
prepare stmt from 'select * from t1 # 123
';
execute stmt;
a
1
2
3
show status like "Qcache_queries_in_cache";
Variable_name	Value
Qcache_queries_in_cache	1
show status like "Qcache_inserts";
Variable_name	Value
Qcache_inserts	1
show status like "Qcache_hits";
Variable_name	Value
Qcache_hits	12
prepare stmt from 'select * from t1 # 123 with "quote"
';
execute stmt;
a
1
2
3
show status like "Qcache_queries_in_cache";
Variable_name	Value
Qcache_queries_in_cache	1
show status like "Qcache_inserts";
Variable_name	Value
Qcache_inserts	1
show status like "Qcache_hits";
Variable_name	Value
Qcache_hits	13
prepare stmt from 'select * from t1 # 123 with \'quote\'
';
execute stmt;
a
1
2
3
show status like "Qcache_queries_in_cache";
Variable_name	Value
Qcache_queries_in_cache	1
show status like "Qcache_inserts";
Variable_name	Value
Qcache_inserts	1
show status like "Qcache_hits";
Variable_name	Value
Qcache_hits	14
prepare stmt from 'select * from t1
# 123
';
execute stmt;
a
1
2
3
show status like "Qcache_queries_in_cache";
Variable_name	Value
Qcache_queries_in_cache	1
show status like "Qcache_inserts";
Variable_name	Value
Qcache_inserts	1
show status like "Qcache_hits";
Variable_name	Value
Qcache_hits	15
prepare stmt from '#456
select * from t1
# 123
';
execute stmt;
a
1
2
3
show status like "Qcache_queries_in_cache";
Variable_name	Value
Qcache_queries_in_cache	1
show status like "Qcache_inserts";
Variable_name	Value
Qcache_inserts	1
show status like "Qcache_hits";
Variable_name	Value
Qcache_hits	16
prepare stmt from 'select * from t1 -- 123
';
execute stmt;
a
1
2
3
show status like "Qcache_queries_in_cache";
Variable_name	Value
Qcache_queries_in_cache	1
show status like "Qcache_inserts";
Variable_name	Value
Qcache_inserts	1
show status like "Qcache_hits";
Variable_name	Value
Qcache_hits	17
prepare stmt from 'select * from t1
-- 123
';
execute stmt;
a
1
2
3
show status like "Qcache_queries_in_cache";
Variable_name	Value
Qcache_queries_in_cache	1
show status like "Qcache_inserts";
Variable_name	Value
Qcache_inserts	1
show status like "Qcache_hits";
Variable_name	Value
Qcache_hits	18
prepare stmt from '-- comment in first
select * from t1
# 123
';
execute stmt;
a
1
2
3
show status like "Qcache_queries_in_cache";
Variable_name	Value
Qcache_queries_in_cache	1
show status like "Qcache_inserts";
Variable_name	Value
Qcache_inserts	1
show status like "Qcache_hits";
Variable_name	Value
Qcache_hits	19
prepare stmt from '(#456(
select * from t1
# 123(
)';
execute stmt;
a
1
2
3
show status like "Qcache_queries_in_cache";
Variable_name	Value
Qcache_queries_in_cache	2
show status like "Qcache_inserts";
Variable_name	Value
Qcache_inserts	2
show status like "Qcache_hits";
Variable_name	Value
Qcache_hits	19
prepare stmt from '/*test*/(-- comment in first(
select * from t1
-- 123 asdasd
/* test */)';
execute stmt;
a
1
2
3
show status like "Qcache_queries_in_cache";
Variable_name	Value
Qcache_queries_in_cache	2
show status like "Qcache_inserts";
Variable_name	Value
Qcache_inserts	2
show status like "Qcache_hits";
Variable_name	Value
Qcache_hits	20
prepare stmt from 'select "test",a from t1';
execute stmt;
test	a
test	1
test	2
test	3
execute stmt;
test	a
test	1
test	2
test	3
show status like "Qcache_queries_in_cache";
Variable_name	Value
Qcache_queries_in_cache	3
show status like "Qcache_inserts";
Variable_name	Value
Qcache_inserts	3
show status like "Qcache_hits";
Variable_name	Value
Qcache_hits	21
prepare stmt from 'select "test /* internal \'comment\' */",a from t1';
execute stmt;
test /* internal 'comment' */	a
test /* internal 'comment' */	1
test /* internal 'comment' */	2
test /* internal 'comment' */	3
show status like "Qcache_queries_in_cache";
Variable_name	Value
Qcache_queries_in_cache	4
show status like "Qcache_inserts";
Variable_name	Value
Qcache_inserts	4
show status like "Qcache_hits";
Variable_name	Value
Qcache_hits	21
prepare stmt from 'select "test #internal comment" ,a from t1';
execute stmt;
test #internal comment	a
test #internal comment	1
test #internal comment	2
test #internal comment	3
show status like "Qcache_queries_in_cache";
Variable_name	Value
Qcache_queries_in_cache	5
show status like "Qcache_inserts";
Variable_name	Value
Qcache_inserts	5
show status like "Qcache_hits";
Variable_name	Value
Qcache_hits	21
prepare stmt from 'select "test #internal comment" #external comment
,a from t1';
execute stmt;
test #internal comment	a
test #internal comment	1
test #internal comment	2
test #internal comment	3
show status like "Qcache_queries_in_cache";
Variable_name	Value
Qcache_queries_in_cache	5
show status like "Qcache_inserts";
Variable_name	Value
Qcache_inserts	5
show status like "Qcache_hits";
Variable_name	Value
Qcache_hits	22
DROP TABLE t1;
SET GLOBAL query_cache_size= default;
set global query_cache_strip_comments=OFF;