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check of item name presence in find_item_in_list (Bug #3752)

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mysql-test/r/func_gconcat.result:
  test of Bug #3752
mysql-test/t/func_gconcat.test:
  test of Bug #3752
sql/sql_base.cc:
  check of item name presence in find_item_in_list
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unknown
2004-05-14 18:55:24 +03:00
parent ebaa2a5624
commit c585b669d6
3 changed files with 27 additions and 1 deletions
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9
sql/sql_base.cc
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@ -2096,7 +2096,14 @@ find_item_in_list(Item *find, List<Item> &items, uint *counter,
if (field_name && item->type() == Item::FIELD_ITEM)
{
Item_field *item_field= (Item_field*) item;
if (!my_strcasecmp(system_charset_info, item_field->name, field_name))
/*
In case of group_concat() with ORDER BY condition in the QUERY
item_field can be field of temporary table without item name
(if this field created from expression argument of group_concat()),
=> we have to check presence of name before compare
*/
if (item_field->name &&
!my_strcasecmp(system_charset_info, item_field->name, field_name))
{
if (!table_name)
{