diff options
Diffstat (limited to 'mysql-test')
| -rw-r--r-- | mysql-test/r/subselect.result | 128 | ||||
| -rw-r--r-- | mysql-test/t/subselect.test | 124 |
2 files changed, 69 insertions, 183 deletions
diff --git a/mysql-test/r/subselect.result b/mysql-test/r/subselect.result index 527c45671f4..2de2589fc92 100644 --- a/mysql-test/r/subselect.result +++ b/mysql-test/r/subselect.result @@ -4147,103 +4147,37 @@ DROP TABLE t1,t2; create table t1(a int,b int,key(a),key(b)); insert into t1(a,b) values (1,2),(2,1),(2,3),(3,4),(5,4),(5,5), (6,7),(7,4),(5,3); -select sum(a),a from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 -)group by b limit 1)group by b limit 1 -)group by b limit 1)group by b limit 1)group by b limit 1 -)group by b limit 1)group by b limit 1)group by b limit 1 -)group by b limit 1)group by b limit 1)group by b limit 1) -group by a; -sum(a) a -select sum(a),a from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( -select sum(a) from t1 -)group by b limit 1)group by b limit 1)group by b limit 1 -)group by b limit 1)group by b limit 1)group by b limit 1 -)group by b limit 1)group by b limit 1)group by b limit 1 -)group by b limit 1)group by b limit 1)group by b limit 1 -)group by b limit 1)group by b limit 1)group by b limit 1 -)group by b limit 1)group by b limit 1)group by b limit 1 -)group by b limit 1)group by b limit 1)group by b limit 1 -)group by b limit 1)group by b limit 1)group by b limit 1 -)group by b limit 1)group by b limit 1)group by b limit 1 -)group by b limit 1)group by b limit 1)group by b limit 1) -group by a; -ERROR HY000: Thread stack overrun detected -explain select sum(a),a from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 -)group by b limit 1)group by b limit 1 -)group by b limit 1)group by b limit 1)group by b limit 1 -)group by b limit 1)group by b limit 1)group by b limit 1 -)group by b limit 1)group by b limit 1)group by b limit 1) -group by a; -id select_type table type possible_keys key key_len ref rows Extra -1 PRIMARY t1 index a a 5 NULL 9 Using where; Using index -2 SUBQUERY t1 range a a 5 NULL 9 Using where; Using temporary; Using filesort -3 SUBQUERY t1 range a a 5 NULL 9 Using where; Using temporary; Using filesort -4 SUBQUERY t1 range a a 5 NULL 9 Using where; Using temporary; Using filesort -5 SUBQUERY t1 range a a 5 NULL 9 Using where; Using temporary; Using filesort -6 SUBQUERY t1 range a a 5 NULL 9 Using where; Using temporary; Using filesort -7 SUBQUERY t1 range a a 5 NULL 9 Using where; Using temporary; Using filesort -8 SUBQUERY t1 range a a 5 NULL 9 Using where; Using temporary; Using filesort -9 SUBQUERY t1 range a a 5 NULL 9 Using where; Using temporary; Using filesort -10 SUBQUERY t1 range a a 5 NULL 9 Using where; Using temporary; Using filesort -11 SUBQUERY t1 range a a 5 NULL 9 Using where; Using temporary; Using filesort -12 SUBQUERY t1 range a a 5 NULL 1 Using where; Using temporary; Using filesort -13 SUBQUERY t1 index NULL a 5 NULL 9 Using index -explain select sum(a),a from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( -select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( -select sum(a) from t1 -)group by b limit 1)group by b limit 1)group by b limit 1 -)group by b limit 1)group by b limit 1)group by b limit 1 -)group by b limit 1)group by b limit 1)group by b limit 1 -)group by b limit 1)group by b limit 1)group by b limit 1 -)group by b limit 1)group by b limit 1)group by b limit 1 -)group by b limit 1)group by b limit 1)group by b limit 1 -)group by b limit 1)group by b limit 1)group by b limit 1 -)group by b limit 1)group by b limit 1)group by b limit 1 -)group by b limit 1)group by b limit 1)group by b limit 1 -)group by b limit 1)group by b limit 1)group by b limit 1) -group by a; -ERROR HY000: Thread stack overrun detected +5 +4 +3 +2 +1 +26 +25 +24 +23 +22 +21 +20 +19 +18 +17 +16 +15 +14 +13 +12 +11 +10 +9 +8 +7 +6 +5 +4 +3 +2 +1 drop table t1; CREATE TABLE t1 (a1 INT, a2 INT); CREATE TABLE t2 (b1 INT, b2 INT); diff --git a/mysql-test/t/subselect.test b/mysql-test/t/subselect.test index 326d80f84c1..c5edd5414e3 100644 --- a/mysql-test/t/subselect.test +++ b/mysql-test/t/subselect.test @@ -3006,92 +3006,44 @@ DROP TABLE t1,t2; create table t1(a int,b int,key(a),key(b)); insert into t1(a,b) values (1,2),(2,1),(2,3),(3,4),(5,4),(5,5), (6,7),(7,4),(5,3); -# test for the stack overflow bug -select sum(a),a from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 - )group by b limit 1)group by b limit 1 - )group by b limit 1)group by b limit 1)group by b limit 1 - )group by b limit 1)group by b limit 1)group by b limit 1 - )group by b limit 1)group by b limit 1)group by b limit 1) -group by a; ---replace_regex /overrun.*$/overrun detected/ ---error 1436 -select sum(a),a from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( - select sum(a) from t1 - )group by b limit 1)group by b limit 1)group by b limit 1 - )group by b limit 1)group by b limit 1)group by b limit 1 - )group by b limit 1)group by b limit 1)group by b limit 1 - )group by b limit 1)group by b limit 1)group by b limit 1 - )group by b limit 1)group by b limit 1)group by b limit 1 - )group by b limit 1)group by b limit 1)group by b limit 1 - )group by b limit 1)group by b limit 1)group by b limit 1 - )group by b limit 1)group by b limit 1)group by b limit 1 - )group by b limit 1)group by b limit 1)group by b limit 1 - )group by b limit 1)group by b limit 1)group by b limit 1) -group by a; -# test for the memory consumption & subquery slowness bug -explain select sum(a),a from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 - )group by b limit 1)group by b limit 1 - )group by b limit 1)group by b limit 1)group by b limit 1 - )group by b limit 1)group by b limit 1)group by b limit 1 - )group by b limit 1)group by b limit 1)group by b limit 1) -group by a; ---replace_regex /overrun.*$/overrun detected/ ---error 1436 -explain select sum(a),a from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( - select sum(a) from t1 where a> ( select sum(a) from t1 where a> ( - select sum(a) from t1 - )group by b limit 1)group by b limit 1)group by b limit 1 - )group by b limit 1)group by b limit 1)group by b limit 1 - )group by b limit 1)group by b limit 1)group by b limit 1 - )group by b limit 1)group by b limit 1)group by b limit 1 - )group by b limit 1)group by b limit 1)group by b limit 1 - )group by b limit 1)group by b limit 1)group by b limit 1 - )group by b limit 1)group by b limit 1)group by b limit 1 - )group by b limit 1)group by b limit 1)group by b limit 1 - )group by b limit 1)group by b limit 1)group by b limit 1 - )group by b limit 1)group by b limit 1)group by b limit 1) -group by a; + +let $nesting= 26; +let $should_work_nesting= 5; +let $start= select sum(a),a from t1 where a> ( select sum(a) from t1 ; +let $end= )group by a ; +let $start_app= where a> ( select sum(a) from t1 ; +let $end_pre= )group by b limit 1 ; + +--disable_result_log +--disable_query_log +# At least 4 level nesting should work without errors +while ($should_work_nesting) +{ +--echo $should_work_nesting + eval $start $end; + eval explain $start $end; + let $start= $start + $start_app; + let $end= $end_pre + $end; + dec $should_work_nesting; +} +# Other may fail with the 'stack overrun error' +while ($nesting) +{ +--echo $nesting +--error 0,1436 + eval $start $end; +--error 0,1436 + eval explain $start $end; + let $start= $start + $start_app; + let $end= $end_pre + $end; + dec $nesting; +} +--enable_result_log +--enable_query_log drop table t1; # |