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Merged MWL#247 into the latest 5.3.

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Igor Babaev
2011-12-31 03:36:20 -08:00
parent 7714496dc1 b6b5f9fabe
commit ec2828e4f7
13 changed files with 10204 additions and 72 deletions
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4
sql/opt_sum.cc
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@@ -847,7 +847,6 @@ static bool matching_cond(bool max_fl, TABLE_REF *ref, KEY *keyinfo,
1 Can use key to optimize MIN()/MAX().
In this case ref, range_fl and prefix_len are updated
*/
static bool find_key_for_maxmin(bool max_fl, TABLE_REF *ref,
Field* field, COND *cond,
@@ -876,7 +875,8 @@ static bool find_key_for_maxmin(bool max_fl, TABLE_REF *ref,
continue;
uint jdx= 0;
*prefix_len= 0;
for (part= keyinfo->key_part, part_end= part+keyinfo->key_parts ;
part_end= keyinfo->key_part+table->actual_n_key_parts(keyinfo);
for (part= keyinfo->key_part ;
part != part_end ;
part++, jdx++, key_part_to_use= (key_part_to_use << 1) | 1)
{