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Ported WL#3220 to mysql-next-mr.

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This commit is contained in:
Georgi Kodinov
2009-09-28 10:21:25 +03:00
parent b21cd91780
commit 7aa8cd7a11
14 changed files with 1620 additions and 882 deletions
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7
sql/sql_select.h
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@ -218,6 +218,11 @@ typedef struct st_join_table {
(select->quick->get_type() ==
QUICK_SELECT_I::QS_TYPE_GROUP_MIN_MAX));
}
bool is_using_agg_loose_index_scan ()
{
return (is_using_loose_index_scan() &&
((QUICK_GROUP_MIN_MAX_SELECT *)select->quick)->is_agg_distinct());
}
} JOIN_TAB;
enum_nested_loop_state sub_select_cache(JOIN *join, JOIN_TAB *join_tab, bool
@ -564,6 +569,8 @@ Field* create_tmp_field_from_field(THD *thd, Field* org_field,
const char *name, TABLE *table,
Item_field *item, uint convert_blob_length);
bool is_indexed_agg_distinct(JOIN *join, List<Item_field> *out_args);
/* functions from opt_sum.cc */
bool simple_pred(Item_func *func_item, Item **args, bool *inv_order);
int opt_sum_query(TABLE_LIST *tables, List<Item> &all_fields,COND *conds);