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Manual merge

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igor@rurik.mysql.com 2005-08-02 13:17:49 -07:00
commit 7322441dc7
1 changed files with 10 additions and 4 deletions
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14
sql/item_sum.cc
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@ -2632,7 +2632,11 @@ int group_concat_key_cmp_with_distinct(void* arg, byte* key1,
the temporary table, not the original field
*/
Field *field= (*field_item)->get_tmp_table_field();
if (field)
/*
If field_item is a const item then either get_tp_table_field returns 0
or it is an item over a const table.
*/
if (field && !(*field_item)->const_item())
{
int res;
uint offset= field->offset() - table->s->null_bytes;
@ -2666,8 +2670,11 @@ int group_concat_key_cmp_with_order(void* arg, byte* key1, byte* key2)
the temporary table, not the original field
*/
Field *field= item->get_tmp_table_field();
/* If the item is a constant, there is no tmp table field */
if (field)
/*
If item is a const item then either get_tp_table_field returns 0
or it is an item over a const table.
*/
if (field && !item->const_item())
{
int res;
uint offset= field->offset() - table->s->null_bytes;
@ -3037,7 +3044,6 @@ bool Item_func_group_concat::setup(THD *thd)
DBUG_RETURN(TRUE);
count_field_types(tmp_table_param,all_fields,0);
tmp_table_param->need_const= 1;
DBUG_ASSERT(table == 0);
/*
We have to create a temporary table to get descriptions of fields