diff options
Diffstat (limited to 'sql/sql_select.cc')
| -rw-r--r-- | sql/sql_select.cc | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/sql/sql_select.cc b/sql/sql_select.cc index 1146d37d06b..232ace2858c 100644 --- a/sql/sql_select.cc +++ b/sql/sql_select.cc @@ -14176,10 +14176,20 @@ create_tmp_table(THD *thd, TMP_TABLE_PARAM *param, List<Item> &fields, if (group) { + ORDER **prev= &group; if (!param->quick_group) group=0; // Can't use group key else for (ORDER *tmp=group ; tmp ; tmp=tmp->next) { + /* Exclude found constant from the list */ + if ((*tmp->item)->const_item()) + { + *prev= tmp->next; + param->group_parts--; + continue; + } + else + prev= &(tmp->next); /* marker == 4 means two things: - store NULLs in the key, and |