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Bugfix when using a multi-part unique key in the SET and WHERE part

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Put PRIMARY KEY and UNIQUE keys before other keys
Fixes for auto_increment keys for BDB tables
This commit is contained in:
monty@donna.mysql.com
2000-12-10 21:10:03 +02:00
parent 0dd9ec5a63
commit 0efb424e48
4 changed files with 98 additions and 45 deletions
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11
sql/sql_update.cc
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@@ -75,8 +75,16 @@ int mysql_update(THD *thd,TABLE_LIST *table_list,List<Item> &fields,
if (table->timestamp_field && // Don't set timestamp if used
table->timestamp_field->query_id == thd->query_id)
table->time_stamp=0;
/* Reset the query_id string so that ->used_keys is based on the WHERE */
table->used_keys=table->keys_in_use;
table->quick_keys=0;
reg2 Item *item;
List_iterator<Item> it(fields);
ulong query_id=thd->query_id-1;
while ((item=it++))
((Item_field*) item)->field->query_id=query_id;
if (setup_fields(thd,table_list,values,0,0) ||
setup_conds(thd,table_list,&conds))
{
@@ -84,7 +92,8 @@ int mysql_update(THD *thd,TABLE_LIST *table_list,List<Item> &fields,
DBUG_RETURN(-1); /* purecov: inspected */
}
old_used_keys=table->used_keys;
table->used_keys=0; // Can't use 'only index'
// Don't count on usage of 'only index' when calculating which key to use
table->used_keys=0;
select=make_select(table,0,0,conds,&error);
if (error ||
(select && select->check_quick(test(thd->options & SQL_SAFE_UPDATES),