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Kirill Smelkov
mariadb
Commits
f96200fd
Commit
f96200fd
authored
Jun 03, 2003
by
wax@kishkin.ru
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BUG
correct bug with empty table
parent
a2e9bbf2
Changes
1
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sql/item_sum.cc
sql/item_sum.cc
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sql/item_sum.cc
View file @
f96200fd
...
...
@@ -1582,6 +1582,8 @@ void Item_func_group_concat::reset()
bool
Item_func_group_concat
::
add
()
{
if
(
always_null
)
return
0
;
copy_fields
(
tmp_table_param
);
copy_funcs
(
tmp_table_param
->
items_to_copy
);
...
...
@@ -1676,6 +1678,7 @@ bool Item_func_group_concat::setup(THD *thd)
/*
all not constant fields are push to list and create temp table
*/
always_null
=
0
;
for
(
uint
i
=
0
;
i
<
arg_count
;
i
++
)
{
Item
*
item
=
args
[
i
];
...
...
@@ -1688,6 +1691,8 @@ bool Item_func_group_concat::setup(THD *thd)
always_null
=
1
;
}
}
if
(
always_null
)
return
0
;
List
<
Item
>
all_fields
(
list
);
if
(
arg_count_order
)
...
...
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