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nexedi
MariaDB
Commits
e1923e7f
Commit
e1923e7f
authored
Sep 28, 2011
by
Sergey Petrunya
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parents
555a1214
bccfb3d2
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4 changed files
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62 additions
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1 deletion
+62
-1
mysql-test/r/subselect_mat.result
mysql-test/r/subselect_mat.result
+18
-0
mysql-test/r/subselect_sj_mat.result
mysql-test/r/subselect_sj_mat.result
+18
-0
mysql-test/t/subselect_sj_mat.test
mysql-test/t/subselect_sj_mat.test
+19
-0
sql/item_subselect.cc
sql/item_subselect.cc
+7
-1
No files found.
mysql-test/r/subselect_mat.result
View file @
e1923e7f
...
@@ -1657,6 +1657,24 @@ a
...
@@ -1657,6 +1657,24 @@ a
0
0
DROP TABLE t2,t3,t4,t5;
DROP TABLE t2,t3,t4,t5;
set optimizer_switch=@subselect_sj_mat_tmp;
set optimizer_switch=@subselect_sj_mat_tmp;
#
# BUG#860300: Second crash with get_fanout_with_deps() with semijoin + materialization
#
set @tmp_860300=@@optimizer_switch;
set optimizer_switch='semijoin=on,materialization=on,loosescan=off,firstmatch=off';
CREATE TABLE t1 (f2 int);
INSERT INTO t1 VALUES (9),(6);
CREATE TABLE t3 (f4 int);
CREATE TABLE t4 (f6 varchar(1));
SELECT *
FROM t3
WHERE 'h' IN (SELECT f6
FROM t4
WHERE 5 IN (SELECT f2 FROM t1)
GROUP BY t4.f6);
f4
DROP TABLE t1,t3,t4;
set optimizer_switch=@tmp_860300;
set @subselect_mat_test_optimizer_switch_value=null;
set @subselect_mat_test_optimizer_switch_value=null;
set @@optimizer_switch='materialization=on,in_to_exists=off,semijoin=off';
set @@optimizer_switch='materialization=on,in_to_exists=off,semijoin=off';
set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
...
...
mysql-test/r/subselect_sj_mat.result
View file @
e1923e7f
...
@@ -1697,3 +1697,21 @@ a
...
@@ -1697,3 +1697,21 @@ a
0
0
DROP TABLE t2,t3,t4,t5;
DROP TABLE t2,t3,t4,t5;
set optimizer_switch=@subselect_sj_mat_tmp;
set optimizer_switch=@subselect_sj_mat_tmp;
#
# BUG#860300: Second crash with get_fanout_with_deps() with semijoin + materialization
#
set @tmp_860300=@@optimizer_switch;
set optimizer_switch='semijoin=on,materialization=on,loosescan=off,firstmatch=off';
CREATE TABLE t1 (f2 int);
INSERT INTO t1 VALUES (9),(6);
CREATE TABLE t3 (f4 int);
CREATE TABLE t4 (f6 varchar(1));
SELECT *
FROM t3
WHERE 'h' IN (SELECT f6
FROM t4
WHERE 5 IN (SELECT f2 FROM t1)
GROUP BY t4.f6);
f4
DROP TABLE t1,t3,t4;
set optimizer_switch=@tmp_860300;
mysql-test/t/subselect_sj_mat.test
View file @
e1923e7f
...
@@ -1351,3 +1351,22 @@ DROP TABLE t2,t3,t4,t5;
...
@@ -1351,3 +1351,22 @@ DROP TABLE t2,t3,t4,t5;
set
optimizer_switch
=@
subselect_sj_mat_tmp
;
set
optimizer_switch
=@
subselect_sj_mat_tmp
;
--
echo
#
--
echo
# BUG#860300: Second crash with get_fanout_with_deps() with semijoin + materialization
--
echo
#
set
@
tmp_860300
=@@
optimizer_switch
;
set
optimizer_switch
=
'semijoin=on,materialization=on,loosescan=off,firstmatch=off'
;
CREATE
TABLE
t1
(
f2
int
);
INSERT
INTO
t1
VALUES
(
9
),(
6
);
CREATE
TABLE
t3
(
f4
int
);
CREATE
TABLE
t4
(
f6
varchar
(
1
));
SELECT
*
FROM
t3
WHERE
'h'
IN
(
SELECT
f6
FROM
t4
WHERE
5
IN
(
SELECT
f2
FROM
t1
)
GROUP
BY
t4
.
f6
);
DROP
TABLE
t1
,
t3
,
t4
;
set
optimizer_switch
=@
tmp_860300
;
sql/item_subselect.cc
View file @
e1923e7f
...
@@ -4394,7 +4394,13 @@ double get_fanout_with_deps(JOIN *join, table_map tset)
...
@@ -4394,7 +4394,13 @@ double get_fanout_with_deps(JOIN *join, table_map tset)
for
(
JOIN_TAB
*
tab
=
first_top_level_tab
(
join
,
WITHOUT_CONST_TABLES
);
tab
;
for
(
JOIN_TAB
*
tab
=
first_top_level_tab
(
join
,
WITHOUT_CONST_TABLES
);
tab
;
tab
=
next_top_level_tab
(
join
,
tab
))
tab
=
next_top_level_tab
(
join
,
tab
))
{
{
if
((
tab
->
table
->
map
&
checked_deps
)
&&
!
tab
->
emb_sj_nest
&&
/*
Ignore SJM nests. They have tab->table==NULL. There is no point to walk
inside them, because GROUP BY clause cannot refer to tables from within
subquery.
*/
if
(
!
tab
->
is_sjm_nest
()
&&
(
tab
->
table
->
map
&
checked_deps
)
&&
!
tab
->
emb_sj_nest
&&
tab
->
records_read
!=
0
)
tab
->
records_read
!=
0
)
{
{
fanout
*=
rows2double
(
tab
->
records_read
);
fanout
*=
rows2double
(
tab
->
records_read
);
...
...
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