Better comments

305dd8e5 · Sergei Petrunia · 1f3724a5 · 305dd8e5
Commit 305dd8e5 authored Nov 21, 2014 by Sergei Petrunia
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Showing with 7 additions and 1 deletion

sql/sql_select.h sql/sql_select.h +7 -1

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--- 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;
  /**