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-rw-r--r--sql/sql_select.h8
1 files changed, 7 insertions, 1 deletions
diff --git a/sql/sql_select.h b/sql/sql_select.h
index 41ee2cb51d2..cf3e1b353ab 100644
--- a/sql/sql_select.h
+++ b/sql/sql_select.h
@@ -982,7 +982,13 @@ public:
*/
uint top_join_tab_count;
uint send_group_parts;
- bool group; /**< If query contains GROUP BY clause */
+ /*
+ True if the query has GROUP BY.
+ (that is, if group_by != NULL. when DISTINCT is converted into GROUP BY, it
+ will set this, too. It is not clear why we need a separate var from
+ group_list)
+ */
+ bool group;
bool need_distinct;
/**