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Diffstat (limited to 'sql/sql_select.cc')
| -rw-r--r-- | sql/sql_select.cc | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sql/sql_select.cc b/sql/sql_select.cc index bde5392d299..7176337dbfd 100644 --- a/sql/sql_select.cc +++ b/sql/sql_select.cc @@ -5843,6 +5843,8 @@ test_if_skip_sort_order(JOIN_TAB *tab,ORDER *order,ha_rows select_limit, */ if (!select->quick->reverse_sorted()) { + if (table->file->index_flags(ref_key) & HA_NOT_READ_PREFIX_LAST) + DBUG_RETURN(0); // Use filesort // ORDER BY range_key DESC QUICK_SELECT_DESC *tmp=new QUICK_SELECT_DESC(select->quick, used_key_parts); |