diff --git a/mysql-test/r/func_gconcat.result b/mysql-test/r/func_gconcat.result
index 770a98f69f9ca76c26ae0ebb3d828c490d0a93fd..3b8d8abed9e78154cb0d3415875247f14a8c2869 100644
--- a/mysql-test/r/func_gconcat.result
+++ b/mysql-test/r/func_gconcat.result
@@ -177,3 +177,12 @@ ERROR HY000: Invalid use of group function
 select grp,group_concat(c order by 2) from t1 group by grp;
 ERROR 42S22: Unknown column '2' in 'group statement'
 drop table t1;
+create table t1 (id int, name varchar(16));
+insert into t1 values (1,'longername'),(1,'evenlongername');
+select ifnull(group_concat(concat(t1.id, ':', t1.name)), 'shortname') as 'without distinct: how it should be' from t1;
+without distinct: how it should be
+1:longername,1:evenlongername
+select distinct ifnull(group_concat(concat(t1.id, ':', t1.name)), 'shortname') as 'with distinct: cutoff at length of shortname' from t1;
+with distinct: cutoff at length of shortname
+1:longername,1:evenlongername
+drop table t1;
diff --git a/mysql-test/t/func_gconcat.test b/mysql-test/t/func_gconcat.test
index 6409d8106c226bb86741be4be88395280c1ef7b6..7a13e396844f779e50dc518bd4b5c029f4cb2a32 100644
--- a/mysql-test/t/func_gconcat.test
+++ b/mysql-test/t/func_gconcat.test
@@ -93,3 +93,9 @@ select group_concat(sum(a)) from t1 group by grp;
 select grp,group_concat(c order by 2) from t1 group by grp;
 
 drop table t1;
+
+create table t1 (id int, name varchar(16));
+insert into t1 values (1,'longername'),(1,'evenlongername');
+select ifnull(group_concat(concat(t1.id, ':', t1.name)), 'shortname') as 'without distinct: how it should be' from t1;
+select distinct ifnull(group_concat(concat(t1.id, ':', t1.name)), 'shortname') as 'with distinct: cutoff at length of shortname' from t1;
+drop table t1;
diff --git a/sql/item_sum.cc b/sql/item_sum.cc
index 67dffb35724d6b45ca1e0cb9d4b24bc65b805f63..e16ff6969d347d7b034169391258492ea7c0839f 100644
--- a/sql/item_sum.cc
+++ b/sql/item_sum.cc
@@ -1114,7 +1114,7 @@ void Item_sum_count_distinct::make_unique()
 bool Item_sum_count_distinct::setup(THD *thd)
 {
   List<Item> list;
-  SELECT_LEX *select_lex= current_lex->current_select->select_lex();
+  SELECT_LEX *select_lex= thd->lex.current_select->select_lex();
   if (select_lex->linkage == GLOBAL_OPTIONS_TYPE)
     return 1;
     
@@ -1599,7 +1599,7 @@ Item_func_group_concat::Item_func_group_concat(bool is_distinct,
    warning_available(0), key_length(0), rec_offset(0),
    tree_mode(0), distinct(is_distinct), warning_for_row(0),
    separator(is_separator), tree(&tree_base), table(0),
-   order(0), tables_list(0), group_concat_max_len(0),
+   order(0), tables_list(0),
    show_elements(0), arg_count_order(0), arg_count_field(0),
    arg_show_fields(0), count_cut_values(0)
    
@@ -1607,8 +1607,11 @@ Item_func_group_concat::Item_func_group_concat(bool is_distinct,
   original= 0;
   quick_group= 0;
   mark_as_sum_func();
-  SELECT_LEX *select_lex= current_lex->current_select->select_lex();
+  item_thd= current_thd;
+  SELECT_LEX *select_lex= item_thd->lex.current_select->select_lex();
   order= 0;
+  group_concat_max_len= item_thd->variables.group_concat_max_len;
+
     
   arg_show_fields= arg_count_field= is_select->elements;
   arg_count_order= is_order ? is_order->elements : 0;
@@ -1773,7 +1776,7 @@ Item_func_group_concat::fix_fields(THD *thd, TABLE_LIST *tables, Item **ref)
   }
   result_field= 0;
   null_value= 1;
-  fix_length_and_dec();
+  max_length= group_concat_max_len;
   thd->allow_sum_func= 1;			
   if (!(tmp_table_param= new TMP_TABLE_PARAM))
     return 1;
@@ -1786,7 +1789,7 @@ Item_func_group_concat::fix_fields(THD *thd, TABLE_LIST *tables, Item **ref)
 bool Item_func_group_concat::setup(THD *thd)
 {
   List<Item> list;
-  SELECT_LEX *select_lex= current_lex->current_select->select_lex();
+  SELECT_LEX *select_lex= thd->lex.current_select->select_lex();
 
   if (select_lex->linkage == GLOBAL_OPTIONS_TYPE)
     return 1;
@@ -1873,9 +1876,6 @@ bool Item_func_group_concat::setup(THD *thd)
     max_elements_in_tree= ((key_length) ? 
            thd->variables.max_heap_table_size/key_length : 1);
   };
-  item_thd= thd;
-
-  group_concat_max_len= thd->variables.group_concat_max_len;
 
   /*
     Copy table and tree_mode if they belong to this item (if item have not 
diff --git a/sql/item_sum.h b/sql/item_sum.h
index c4876201a7c023b0cc341c1207e3d229d6c7c3fd..6f0d7a028a7ed30ed3ae50ad8cd56e5bfe542018 100644
--- a/sql/item_sum.h
+++ b/sql/item_sum.h
@@ -713,7 +713,6 @@ class Item_func_group_concat : public Item_sum
   enum Sumfunctype sum_func () const {return GROUP_CONCAT_FUNC;}
   const char *func_name() const { return "group_concat"; }
   enum Type type() const { return SUM_FUNC_ITEM; }  
-  void fix_length_and_dec() { max_length=group_concat_max_len; }
   virtual Item_result result_type () const { return STRING_RESULT; }
   bool reset();
   bool add();