MDEV-11297: Add support for LIMIT clause in GROUP_CONCAT()

1 files changed, 12 insertions, 1 deletions

diff --git a/sql/item_sum.h b/sql/item_sum.h
index fd6b20e2b81..cbf245f3cd3 100644
--- a/sql/item_sum.h
+++ b/sql/item_sum.h
@@ -1747,6 +1747,16 @@ class Item_func_group_concat : public Item_sum
   bool always_null;
   bool force_copy_fields;
   bool no_appended;
+  /** Limits the rows in the result */
+  Item *row_limit;
+  /** Skips a particular number of rows in from the result*/
+  Item *offset_limit;
+  bool limit_clause;
+  /* copy of the offset limit */
+  ulonglong copy_offset_limit;
+  /*copy of the row limit */
+  ulonglong copy_row_limit;
+
   /*
     Following is 0 normal object and pointer to original one for copy
     (to correctly free resources)
@@ -1763,7 +1773,8 @@ class Item_func_group_concat : public Item_sum
 public:
   Item_func_group_concat(THD *thd, Name_resolution_context *context_arg,
                          bool is_distinct, List<Item> *is_select,
-                         const SQL_I_List<ORDER> &is_order, String *is_separator);
+                         const SQL_I_List<ORDER> &is_order, String *is_separator,
+                         bool limit_clause, Item *row_limit, Item *offset_limit);
 
   Item_func_group_concat(THD *thd, Item_func_group_concat *item);
   ~Item_func_group_concat();