Merge from mysql-5.1.58-release

1 files changed, 17 insertions, 11 deletions

diff --git a/sql/sql_lex.h b/sql/sql_lex.h
index 07551f51a8a..b4dbbc5162e 100644
--- a/sql/sql_lex.h
+++ b/sql/sql_lex.h
@@ -715,16 +715,7 @@ public:
     joins on the right.
   */
   List<String> *prev_join_using;
-  /*
-    Bitmap used in the ONLY_FULL_GROUP_BY_MODE to prevent mixture of aggregate
-    functions and non aggregated fields when GROUP BY list is absent.
-    Bits:
-      0 - non aggregated fields are used in this select,
-          defined as NON_AGG_FIELD_USED.
-      1 - aggregate functions are used in this select,
-          defined as SUM_FUNC_USED.
-  */
-  uint8 full_group_by_flag;
+
   void init_query();
   void init_select();
   st_select_lex_unit* master_unit();
@@ -832,7 +823,22 @@ public:
 
   void clear_index_hints(void) { index_hints= NULL; }
 
-private:  
+  /*
+    For MODE_ONLY_FULL_GROUP_BY we need to maintain two flags:
+     - Non-aggregated fields are used in this select.
+     - Aggregate functions are used in this select.
+    In MODE_ONLY_FULL_GROUP_BY only one of these may be true.
+  */
+  bool non_agg_field_used() const { return m_non_agg_field_used; }
+  bool agg_func_used()      const { return m_agg_func_used; }
+
+  void set_non_agg_field_used(bool val) { m_non_agg_field_used= val; }
+  void set_agg_func_used(bool val)      { m_agg_func_used= val; }
+
+private:
+  bool m_non_agg_field_used;
+  bool m_agg_func_used;
+
   /* current index hint kind. used in filling up index_hints */
   enum index_hint_type current_index_hint_type;
   index_clause_map current_index_hint_clause;