diff options
| author | igor@linux.local <> | 2005-03-04 20:24:13 -0800 |
|---|---|---|
| committer | igor@linux.local <> | 2005-03-04 20:24:13 -0800 |
| commit | 6d7862aeafa2376910c28dc27fc998b9675b5d16 (patch) | |
| tree | 72f84de3e52863a097fb641a744c97492b1c6ea3 /sql/opt_sum.cc | |
| parent | d565920ba296bb13eafc1482bda58e2eebff029d (diff) | |
| download | mariadb-git-6d7862aeafa2376910c28dc27fc998b9675b5d16.tar.gz | |
logging_ok:
Logging to logging@openlogging.org accepted
func_group.result, func_group.test:
Added a test case for bug #8893.
opt_sum.cc:
A misplaced initialization for the returned parameter
prefix_len in the function find_key_for_maxmin caused
usage of a wrong key prefix by the min/max optimization
in cases when the matching index was not the first index
that contained the min/max field.
Diffstat (limited to 'sql/opt_sum.cc')
| -rw-r--r-- | sql/opt_sum.cc | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sql/opt_sum.cc b/sql/opt_sum.cc index 613b2a4aec1..4ab506cc4e1 100644 --- a/sql/opt_sum.cc +++ b/sql/opt_sum.cc @@ -624,7 +624,6 @@ static bool find_key_for_maxmin(bool max_fl, TABLE_REF *ref, { if (!(field->flags & PART_KEY_FLAG)) return 0; // Not key field - *prefix_len= 0; TABLE *table= field->table; uint idx= 0; @@ -637,6 +636,7 @@ static bool find_key_for_maxmin(bool max_fl, TABLE_REF *ref, KEY_PART_INFO *part,*part_end; key_part_map key_part_to_use= 0; uint jdx= 0; + *prefix_len= 0; for (part= keyinfo->key_part, part_end= part+keyinfo->key_parts ; part != part_end ; part++, jdx++, key_part_to_use= (key_part_to_use << 1) | 1) |