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Fix for Bug #15722 Engine_condition_pushdown fails when using blobs(text)

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This commit is contained in:
unknown 2006-03-28 09:59:20 +02:00
commit 3372c31d12
3 changed files with 32 additions and 3 deletions
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18
mysql-test/r/ndb_condition_pushdown.result
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@ -1766,5 +1766,21 @@ select * from t3 left join t4 on t4.attr2 = t3.attr2 where t4.attr1 > 1 and t4.a
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t3 ALL NULL NULL NULL NULL 6 Using temporary; Using filesort
1 SIMPLE t4 ALL NULL NULL NULL NULL 6 Using where
create table t5 (a int primary key auto_increment, b tinytext not null)
engine = ndb;
insert into t5 (b) values ('jonas'), ('jensing'), ('johan');
set engine_condition_pushdown = off;
select * from t5 where b like '%jo%' order by a;
a b
1 jonas
3 johan
set engine_condition_pushdown = on;
explain select * from t5 where b like '%jo%';
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t5 ALL NULL NULL NULL NULL 3 Using where
select * from t5 where b like '%jo%' order by a;
a b
1 jonas
3 johan
set engine_condition_pushdown = @old_ecpd;
DROP TABLE t1,t2,t3,t4;
DROP TABLE t1,t2,t3,t4,t5;

12
mysql-test/t/ndb_condition_pushdown.test
View file

@ -1639,5 +1639,15 @@ select * from t2 where (attr1 < 2) = (attr2 < 2) order by pk1;
explain
select * from t3 left join t4 on t4.attr2 = t3.attr2 where t4.attr1 > 1 and t4.attr3 < 5 or t4.attr1 is null order by t4.pk1;
# bug#15722
create table t5 (a int primary key auto_increment, b tinytext not null)
engine = ndb;
insert into t5 (b) values ('jonas'), ('jensing'), ('johan');
set engine_condition_pushdown = off;
select * from t5 where b like '%jo%' order by a;
set engine_condition_pushdown = on;
explain select * from t5 where b like '%jo%';
select * from t5 where b like '%jo%' order by a;
set engine_condition_pushdown = @old_ecpd;
DROP TABLE t1,t2,t3,t4;
DROP TABLE t1,t2,t3,t4,t5;

5
sql/ha_ndbcluster.cc
View file

@ -6587,7 +6587,10 @@ void ndb_serialize_cond(const Item *item, void *arg)
context->expecting_field_result(INT_RESULT))
: true)) &&
// Bit fields no yet supported in scan filter
type != MYSQL_TYPE_BIT)
type != MYSQL_TYPE_BIT &&
// No BLOB support in scan filter
type != MYSQL_TYPE_TINY_BLOB &&
type != MYSQL_TYPE_BLOB)
{
const NDBCOL *col= tab->getColumn(field->field_name);
DBUG_ASSERT(col);