diff options
Diffstat (limited to 'sql/sql_select.h')
| -rw-r--r-- | sql/sql_select.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/sql/sql_select.h b/sql/sql_select.h index c61ef4fb92b..6227d6d2cc5 100644 --- a/sql/sql_select.h +++ b/sql/sql_select.h @@ -180,6 +180,14 @@ class JOIN :public Sql_alloc ROLLUP rollup; // Used with rollup bool select_distinct; // Set if SELECT DISTINCT + /* + If we have the GROUP BY statement in the query, + but the group_list was emptied by optimizer, this + flag is TRUE. + It happens when fields in the GROUP BY are from + constant table + */ + bool group_optimized_away; /* simple_xxxxx is set if ORDER/GROUP BY doesn't include any references @@ -276,6 +284,7 @@ class JOIN :public Sql_alloc ref_pointer_array_size= 0; zero_result_cause= 0; optimized= 0; + group_optimized_away= 0; fields_list= fields_arg; bzero((char*) &keyuse,sizeof(keyuse)); |