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Merge gleb.loc:/home/uchum/work/bk/5.0-opt-28898

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into  gleb.loc:/home/uchum/work/bk/5.0-opt


sql/sql_select.cc:
  Auto merged
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unknown
2007-06-20 13:06:24 +05:00
parent fcacd0b271 e855bf33b3
commit e2aa6ee13e
5 changed files with 85 additions and 5 deletions
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41
mysql-test/r/metadata.result
View File

@ -140,4 +140,45 @@ Catalog Database Table Table_alias Column Column_alias Type Length Max length Is
def a v_small v_small 3 9 9 N 32769 0 63
v_small
214748364
CREATE TABLE t1 (c1 CHAR(1));
CREATE TABLE t2 (c2 CHAR(1));
CREATE VIEW v1 AS SELECT t1.c1 FROM t1;
CREATE VIEW v2 AS SELECT t2.c2 FROM t2;
INSERT INTO t1 VALUES ('1'), ('2'), ('3');
INSERT INTO t2 VALUES ('1'), ('2'), ('3'), ('2');
SELECT v1.c1 FROM v1 JOIN t2 ON c1=c2 ORDER BY 1;
Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
def test t1 v1 c1 c1 254 1 1 Y 0 0 8
c1
1
2
2
3
SELECT v1.c1, v2.c2 FROM v1 JOIN v2 ON c1=c2;
Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
def test t1 v1 c1 c1 254 1 1 Y 0 0 8
def test t2 v2 c2 c2 254 1 1 Y 0 0 8
c1 c2
1 1
2 2
3 3
2 2
SELECT v1.c1, v2.c2 FROM v1 JOIN v2 ON c1=c2 GROUP BY v1.c1;
Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
def test t1 v1 c1 c1 254 1 1 Y 32768 0 8
def test t2 v2 c2 c2 254 1 1 Y 0 0 8
c1 c2
1 1
2 2
3 3
SELECT v1.c1, v2.c2 FROM v1 JOIN v2 ON c1=c2 GROUP BY v1.c1 ORDER BY v2.c2;
Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
def test t1 v1 c1 c1 254 1 1 Y 32768 0 8
def test t2 v2 c2 c2 254 1 1 Y 0 0 8
c1 c2
1 1
2 2
3 3
DROP VIEW v1;
DROP TABLE t1,t2;
End of 5.0 tests

21
mysql-test/t/metadata.test
View File

@ -90,5 +90,26 @@ select a.* from (select 2147483648 as v_large) a;
select a.* from (select 214748364 as v_small) a;
--disable_metadata
#
# Bug #28898: table alias and database name of VIEW columns is empty in the
# metadata of # SELECT statement where join is executed via temporary table.
#
CREATE TABLE t1 (c1 CHAR(1));
CREATE TABLE t2 (c2 CHAR(1));
CREATE VIEW v1 AS SELECT t1.c1 FROM t1;
CREATE VIEW v2 AS SELECT t2.c2 FROM t2;
INSERT INTO t1 VALUES ('1'), ('2'), ('3');
INSERT INTO t2 VALUES ('1'), ('2'), ('3'), ('2');
--enable_metadata
SELECT v1.c1 FROM v1 JOIN t2 ON c1=c2 ORDER BY 1;
SELECT v1.c1, v2.c2 FROM v1 JOIN v2 ON c1=c2;
SELECT v1.c1, v2.c2 FROM v1 JOIN v2 ON c1=c2 GROUP BY v1.c1;
SELECT v1.c1, v2.c2 FROM v1 JOIN v2 ON c1=c2 GROUP BY v1.c1 ORDER BY v2.c2;
--disable_metadata
DROP VIEW v1;
DROP TABLE t1,t2;
--echo End of 5.0 tests

15
sql/item.cc
View File

@ -5501,6 +5501,21 @@ void Item_ref::make_field(Send_field *field)
}
Item *Item_ref::get_tmp_table_item(THD *thd)
{
if (!result_field)
return (*ref)->get_tmp_table_item(thd);
Item_field *item= new Item_field(result_field);
if (item)
{
item->table_name= table_name;
item->db_name= db_name;
}
return item;
}
void Item_ref_null_helper::print(String *str)
{
str->append(STRING_WITH_LEN("<ref_null_helper>("));

6
sql/item.h
View File

@ -1904,11 +1904,7 @@ public:
enum_field_types field_type() const { return (*ref)->field_type(); }
Field *get_tmp_table_field()
{ return result_field ? result_field : (*ref)->get_tmp_table_field(); }
Item *get_tmp_table_item(THD *thd)
{
return (result_field ? new Item_field(result_field) :
(*ref)->get_tmp_table_item(thd));
}
Item *get_tmp_table_item(THD *thd);
table_map used_tables() const
{
return depended_from ? OUTER_REF_TABLE_BIT : (*ref)->used_tables();

7
sql/sql_select.cc
View File

@ -14245,6 +14245,13 @@ change_to_use_tmp_fields(THD *thd, Item **ref_pointer_array,
if (!item_field)
DBUG_RETURN(TRUE); // Fatal error
item_field->name= item->name;
if (item->type() == Item::REF_ITEM)
{
Item_field *ifield= (Item_field *) item_field;
Item_ref *iref= (Item_ref *) item;
ifield->table_name= iref->table_name;
ifield->db_name= iref->db_name;
}
#ifndef DBUG_OFF
if (_db_on_ && !item_field->name)
{