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Better bug fix for:

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#9728  'Decreased functionality in "on duplicate key update
#8147  'a column proclaimed ambigous in INSERT ... SELECT .. ON DUPLICATE'

This ensures fields are uniquely qualified and also that one can't update other tables in the ON DUPLICATE KEY UPDATE part
This commit is contained in:
monty@mishka.local
2005-06-27 16:46:41 +03:00
parent d0700b819e
commit 83f90e060e
14 changed files with 123 additions and 78 deletions
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34
sql/sql_insert.cc
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@ -271,7 +271,8 @@ int mysql_insert(THD *thd,TABLE_LIST *table_list,
thd->used_tables=0;
values= its++;
if (mysql_prepare_insert(thd, table_list, insert_table_list, table,
if (mysql_prepare_insert(thd, table_list, insert_table_list,
insert_table_list, table,
fields, values, update_fields,
update_values, duplic))
goto abort;
@ -499,22 +500,37 @@ abort:
SYNOPSIS
mysql_prepare_insert()
thd - thread handler
table_list - global table list
insert_table_list - local table list of INSERT SELECT_LEX
values - values to insert. NULL for INSERT ... SELECT
thd thread handler
table_list global table list (not including first table for
INSERT ... SELECT)
insert_table_list Table we are inserting into (for INSERT ... SELECT)
dup_table_list Tables to be used in ON DUPLICATE KEY
It's either all global tables or only the table we
insert into, depending on if we are using GROUP BY
in the SELECT clause).
values Values to insert. NULL for INSERT ... SELECT
TODO (in far future)
In cases of:
INSERT INTO t1 SELECT a, sum(a) as sum1 from t2 GROUP BY a
ON DUPLICATE KEY ...
we should be able to refer to sum1 in the ON DUPLICATE KEY part
RETURN VALUE
0 - OK
-1 - error (message is not sent to user)
0 OK
-1 error (message is not sent to user)
*/
int mysql_prepare_insert(THD *thd, TABLE_LIST *table_list,
TABLE_LIST *insert_table_list, TABLE *table,
TABLE_LIST *insert_table_list,
TABLE_LIST *dup_table_list,
TABLE *table,
List<Item> &fields, List_item *values,
List<Item> &update_fields, List<Item> &update_values,
enum_duplicates duplic)
{
DBUG_ENTER("mysql_prepare_insert");
if (duplic == DUP_UPDATE && !table->insert_values)
{
/* it should be allocated before Item::fix_fields() */
@ -528,7 +544,7 @@ int mysql_prepare_insert(THD *thd, TABLE_LIST *table_list,
(values && setup_fields(thd, 0, insert_table_list, *values, 0, 0, 0)) ||
(duplic == DUP_UPDATE &&
(check_update_fields(thd, table, insert_table_list, update_fields) ||
setup_fields(thd, 0, insert_table_list, update_values, 1, 0, 0))))
setup_fields(thd, 0, dup_table_list, update_values, 1, 0, 0))))
DBUG_RETURN(-1);
if (values && find_real_table_in_list(table_list->next, table_list->db,
table_list->real_name))