diff options
Diffstat (limited to 'sql/sql_select.cc')
| -rw-r--r-- | sql/sql_select.cc | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/sql/sql_select.cc b/sql/sql_select.cc index 6dd68a60f88..32658f92416 100644 --- a/sql/sql_select.cc +++ b/sql/sql_select.cc @@ -4082,7 +4082,14 @@ create_tmp_table(THD *thd,TMP_TABLE_PARAM *param,List<Item> &fields, *(reg_field++) =new_field; } if (!--hidden_field_count) + { hidden_null_count=null_count; + /* + We need to update hidden_field_count as we may have stored group + functions with constant arguments + */ + param->hidden_field_count= (uint) (reg_field - table->field); + } } DBUG_ASSERT(field_count >= (uint) (reg_field - table->field)); field_count= (uint) (reg_field - table->field); @@ -4270,7 +4277,7 @@ create_tmp_table(THD *thd,TMP_TABLE_PARAM *param,List<Item> &fields, } } - if (distinct) + if (distinct && field_count != param->hidden_field_count) { /* Create an unique key or an unique constraint over all columns |