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Bug #57321 crashes and valgrind errors from spatial types

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Item_func_spatial_collection::fix_length_and_dec didn't call parent's method, so
        the maybe_null was set to '0' after it. But in this case the result was
        just NULL, that caused wrong behaviour.

per-file comments:
  mysql-test/r/gis.result
Bug #57321 crashes and valgrind errors from spatial types 
        test result updated.

  mysql-test/t/gis.test
Bug #57321 crashes and valgrind errors from spatial types 
        test case added.
  sql/item_geofunc.h
Bug #57321 crashes and valgrind errors from spatial types 
        Item_func_geometry::fix_length_and_dec() called in
        Item_func_spatial_collection::fix_length_and_dec().
This commit is contained in:
Alexey Botchkov 2011-01-12 17:02:41 +04:00
parent 599457ae2c
commit 33c78e328f
3 changed files with 19 additions and 0 deletions
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8
mysql-test/r/gis.result
View File

@ -1014,4 +1014,12 @@ SET @a=0x00000000030000000100000000000000000000000000144000000000000014400000000
SET @a=POLYFROMWKB(@a);
SET @a=0x00000000030000000000000000000000000000000000144000000000000014400000000000001840000000000000184000000000000014400000000000001440;
SET @a=POLYFROMWKB(@a);
create table t1(a polygon NOT NULL)engine=myisam;
insert into t1 values (geomfromtext("point(0 1)"));
insert into t1 values (geomfromtext("point(1 0)"));
select * from (select polygon(t1.a) as p from t1 order by t1.a) d;
p
NULL
NULL
drop table t1;
End of 5.1 tests

10
mysql-test/t/gis.test
View File

@ -744,4 +744,14 @@ SET @a=0x00000000030000000000000000000000000000000000144000000000000014400000000
SET @a=POLYFROMWKB(@a);
#
# Bug #57321 crashes and valgrind errors from spatial types
#
create table t1(a polygon NOT NULL)engine=myisam;
insert into t1 values (geomfromtext("point(0 1)"));
insert into t1 values (geomfromtext("point(1 0)"));
select * from (select polygon(t1.a) as p from t1 order by t1.a) d;
drop table t1;
--echo End of 5.1 tests

1
sql/item_geofunc.h
View File

@ -177,6 +177,7 @@ public:
String *val_str(String *);
void fix_length_and_dec()
{
Item_geometry_func::fix_length_and_dec();
for (unsigned int i= 0; i < arg_count; ++i)
{
if (args[i]->fixed && args[i]->field_type() != MYSQL_TYPE_GEOMETRY)