diff options
Diffstat (limited to 'sql/opt_range_mrr.cc')
| -rw-r--r-- | sql/opt_range_mrr.cc | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/sql/opt_range_mrr.cc b/sql/opt_range_mrr.cc index 729c491a6f1..fbccb7c4e1d 100644 --- a/sql/opt_range_mrr.cc +++ b/sql/opt_range_mrr.cc @@ -278,14 +278,14 @@ walk_up_n_right: (1) - range analysis is used for estimating condition selectivity (2) - This is a unique key, and we have conditions for all its user-defined key parts. - (3) - The table uses extended keys, and we have conditions for - all key parts. + (3) - The table uses extended keys, this key covers all components, + and we have conditions for all key parts. */ if (!(cur->min_key_flag & ~NULL_RANGE) && !cur->max_key_flag && (!key_info || // (1) ((uint)key_tree->part+1 == key_info->user_defined_key_parts && // (2) key_info->flags & HA_NOSAME) || // (2) - (seq->param->table->s->use_ext_keys && // (3) + ((key_info->flags & HA_EXT_NOSAME) && // (3) (uint)key_tree->part+1 == key_info->ext_key_parts) // (3) ) && range->start_key.length == range->end_key.length && |