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Merge mhansson@bk-internal:/home/bk/mysql-5.1-opt

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into  dl145s.mysql.com:/data0/mhansson/my51-bug30665
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mhansson@dl145s.mysql.com
2007-09-28 10:33:06 +02:00
parent ca2c93fc33 ab73b25d5b
commit d18df32bc7
5 changed files with 493 additions and 2 deletions
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4
sql/sql_select.cc
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@ -1695,7 +1695,7 @@ JOIN::exec()
test_if_skip_sort_order(&join_tab[const_tables], order,
select_limit, 0,
&join_tab[const_tables].table->
keys_in_use_for_order_by))))
keys_in_use_for_query))))
order=0;
having= tmp_having;
select_describe(this, need_tmp,
@ -12614,6 +12614,8 @@ find_field_in_item_list (Field *field, void *data)
If we can use an index, the JOIN_TAB / tab->select struct
is changed to use the index.
The index must cover all fields in <order>, or it will not be considered.
Return:
0 We have to use filesort to do the sorting
1 We can use an index.