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BUG#12915: Added single-table UPDATE/DELTE ... ORDER BY ... LIMIT

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optimization: now can use index to find records to update/delete
when there is no WHERE clause.
This commit is contained in:
sergefp@mysql.com
2005-09-30 15:21:37 +04:00
parent bd417d158e
commit e9f2f9437a
9 changed files with 343 additions and 23 deletions
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2
sql/opt_range.h
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@ -167,4 +167,6 @@ public:
QUICK_SELECT *get_quick_select_for_ref(THD *thd, TABLE *table,
struct st_table_ref *ref);
uint get_index_for_order(TABLE *table, ORDER *order, ha_rows limit);
#endif