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Bug #21174: Index degrades sort performance and optimizer does not honor IGNORE INDEX

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- reversed the patch for 5.0 and moved to 5.1
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gkodinov/kgeorge@macbook.gmz
2006-09-27 12:53:53 +03:00
parent 542cdbbc42
commit 903387afc0
3 changed files with 0 additions and 23 deletions
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sql/sql_select.cc
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@ -11735,8 +11735,6 @@ test_if_skip_sort_order(JOIN_TAB *tab,ORDER *order,ha_rows select_limit,
We must not try to use disabled keys.
*/
usable_keys= table->s->keys_in_use;
/* we must not consider keys that are disabled by IGNORE INDEX */
usable_keys.intersect(table->keys_in_use_for_query);
for (ORDER *tmp_order=order; tmp_order ; tmp_order=tmp_order->next)
{