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Bug#14616 - Freshly imported table returns error 124 when using LIMIT

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Initialized usable_keys from table->keys_in_use instead of ~0
in test_if_skip_sort_order(). It was possible that a disabled
index was used for sorting.
This commit is contained in:
ingo@mysql.com
2005-11-07 12:16:49 +01:00
parent 8243eee9db
commit 1f3df2e669
3 changed files with 28 additions and 2 deletions
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8
sql/sql_select.cc
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@ -6003,8 +6003,12 @@ test_if_skip_sort_order(JOIN_TAB *tab,ORDER *order,ha_rows select_limit,
key_map usable_keys;
DBUG_ENTER("test_if_skip_sort_order");
/* Check which keys can be used to resolve ORDER BY */
usable_keys= ~(key_map) 0;
/*
Check which keys can be used to resolve ORDER BY.
We must not try to use disabled keys.
*/
usable_keys= table->keys_in_use;
for (ORDER *tmp_order=order; tmp_order ; tmp_order=tmp_order->next)
{
if ((*tmp_order->item)->type() != Item::FIELD_ITEM)