diff --git a/mysql-test/r/group_by.result b/mysql-test/r/group_by.result
index f74584f6bcf..83f1f220023 100644
--- a/mysql-test/r/group_by.result
+++ b/mysql-test/r/group_by.result
@@ -1845,4 +1845,14 @@ SELECT SUBSTRING(a,1,10), LENGTH(a) FROM t1 GROUP BY a;
 SUBSTRING(a,1,10)	LENGTH(a)
 1111111111	1300
 DROP TABLE t1;
+#
+# Bug#57688 Assertion `!table || (!table->write_set || bitmap_is_set(table->write_set, field
+#
+CREATE TABLE t1(f1 INT NOT NULL);
+INSERT INTO t1 VALUES (16777214),(0);
+SELECT COUNT(*) FROM t1 LEFT JOIN t1 t2
+ON 1 WHERE t2.f1 > 1 GROUP BY t2.f1;
+COUNT(*)
+2
+DROP TABLE t1;
 # End of 5.1 tests
diff --git a/mysql-test/r/join_outer.result b/mysql-test/r/join_outer.result
index 8e438934b23..d9c4ac5478e 100644
--- a/mysql-test/r/join_outer.result
+++ b/mysql-test/r/join_outer.result
@@ -1397,4 +1397,34 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 Warnings:
 Note	1003	select straight_join `test`.`jt1`.`f1` AS `f1` from `test`.`t1` `jt6` left join (`test`.`t1` `jt3` join `test`.`t1` `jt4` left join `test`.`t1` `jt5` on(1) left join `test`.`t1` `jt2` on(1)) on((`test`.`jt6`.`f1` and 1)) left join `test`.`t1` `jt1` on(1) where 1
 DROP TABLE t1;
+#
+# Bug#57688 Assertion `!table || (!table->write_set || bitmap_is_set(table->write_set, field
+#
+CREATE TABLE t1 (f1 INT NOT NULL, PRIMARY KEY (f1));
+CREATE TABLE t2 (f1 INT NOT NULL, f2 INT NOT NULL, PRIMARY KEY (f1, f2));
+INSERT INTO t1 VALUES (4);
+INSERT INTO t2 VALUES (3, 3);
+INSERT INTO t2 VALUES (7, 7);
+EXPLAIN SELECT * FROM t1 LEFT JOIN t2 ON t2.f1 = t1.f1
+WHERE t1.f1 = 4
+GROUP BY t2.f1, t2.f2;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	system	PRIMARY	NULL	NULL	NULL	1	Using temporary; Using filesort
+1	SIMPLE	t2	ref	PRIMARY	PRIMARY	4	const	1	Using index
+SELECT * FROM t1 LEFT JOIN t2 ON t2.f1 = t1.f1
+WHERE t1.f1 = 4
+GROUP BY t2.f1, t2.f2;
+f1	f1	f2
+4	NULL	NULL
+EXPLAIN SELECT * FROM t1 LEFT JOIN t2 ON t2.f1 = t1.f1
+WHERE t1.f1 = 4 AND t2.f1 IS NOT NULL AND t2.f2 IS NOT NULL
+GROUP BY t2.f1, t2.f2;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	system	PRIMARY	NULL	NULL	NULL	1	Using filesort
+1	SIMPLE	t2	ref	PRIMARY	PRIMARY	4	const	1	Using where; Using index
+SELECT * FROM t1 LEFT JOIN t2 ON t2.f1 = t1.f1
+WHERE t1.f1 = 4 AND t2.f1 IS NOT NULL AND t2.f2 IS NOT NULL
+GROUP BY t2.f1, t2.f2;
+f1	f1	f2
+DROP TABLE t1,t2;
 End of 5.1 tests
diff --git a/mysql-test/t/group_by.test b/mysql-test/t/group_by.test
index 75ec1d82b02..580c2e5091c 100644
--- a/mysql-test/t/group_by.test
+++ b/mysql-test/t/group_by.test
@@ -1235,5 +1235,16 @@ SELECT SUBSTRING(a,1,10), LENGTH(a) FROM t1 GROUP BY a;
 SELECT SUBSTRING(a,1,10), LENGTH(a) FROM t1 GROUP BY a;
 DROP TABLE t1;
 
+--echo #
+--echo # Bug#57688 Assertion `!table || (!table->write_set || bitmap_is_set(table->write_set, field
+--echo #
+
+CREATE TABLE t1(f1 INT NOT NULL);
+INSERT INTO t1 VALUES (16777214),(0);
+
+SELECT COUNT(*) FROM t1 LEFT JOIN t1 t2
+ON 1 WHERE t2.f1 > 1 GROUP BY t2.f1;
+
+DROP TABLE t1;
 
 --echo # End of 5.1 tests
diff --git a/mysql-test/t/join_outer.test b/mysql-test/t/join_outer.test
index cf881e6aaa2..3251ff292b6 100644
--- a/mysql-test/t/join_outer.test
+++ b/mysql-test/t/join_outer.test
@@ -981,4 +981,33 @@ EXPLAIN EXTENDED SELECT STRAIGHT_JOIN jt1.f1 FROM t1 AS jt1
 
 DROP TABLE t1;
 
+--echo #
+--echo # Bug#57688 Assertion `!table || (!table->write_set || bitmap_is_set(table->write_set, field
+--echo #
+
+CREATE TABLE t1 (f1 INT NOT NULL, PRIMARY KEY (f1));
+CREATE TABLE t2 (f1 INT NOT NULL, f2 INT NOT NULL, PRIMARY KEY (f1, f2));
+
+INSERT INTO t1 VALUES (4);
+INSERT INTO t2 VALUES (3, 3);
+INSERT INTO t2 VALUES (7, 7);
+
+EXPLAIN SELECT * FROM t1 LEFT JOIN t2 ON t2.f1 = t1.f1
+WHERE t1.f1 = 4
+GROUP BY t2.f1, t2.f2;
+
+SELECT * FROM t1 LEFT JOIN t2 ON t2.f1 = t1.f1
+WHERE t1.f1 = 4
+GROUP BY t2.f1, t2.f2;
+
+EXPLAIN SELECT * FROM t1 LEFT JOIN t2 ON t2.f1 = t1.f1
+WHERE t1.f1 = 4 AND t2.f1 IS NOT NULL AND t2.f2 IS NOT NULL
+GROUP BY t2.f1, t2.f2;
+
+SELECT * FROM t1 LEFT JOIN t2 ON t2.f1 = t1.f1
+WHERE t1.f1 = 4 AND t2.f1 IS NOT NULL AND t2.f2 IS NOT NULL
+GROUP BY t2.f1, t2.f2;
+
+DROP TABLE t1,t2;
+
 --echo End of 5.1 tests
diff --git a/sql/sql_select.cc b/sql/sql_select.cc
index 11acd0685a8..9767839b5bf 100644
--- a/sql/sql_select.cc
+++ b/sql/sql_select.cc
@@ -8832,13 +8832,6 @@ simplify_joins(JOIN *join, List<TABLE_LIST> *join_list, COND *conds, bool top)
         that reject nulls => the outer join can be replaced by an inner join.
       */
       table->outer_join= 0;
-      /*
-        Update TABLE::maybe_null field as it could have
-        the value(maybe_null==TRUE) based on the assumption
-        that this join is outer(see setup_table_map() func).
-      */
-      if (table->table)
-        table->table->maybe_null= FALSE;
       if (table->on_expr)
       {
         /* Add on expression to the where condition. */
@@ -13219,6 +13212,8 @@ static bool
 list_contains_unique_index(TABLE *table,
                           bool (*find_func) (Field *, void *), void *data)
 {
+  if (table->pos_in_table_list->outer_join)
+    return 0;
   for (uint keynr= 0; keynr < table->s->keys; keynr++)
   {
     if (keynr == table->s->primary_key ||
@@ -13232,7 +13227,7 @@ list_contains_unique_index(TABLE *table,
            key_part < key_part_end;
            key_part++)
       {
-        if (key_part->field->maybe_null() || 
+        if (key_part->field->real_maybe_null() || 
             !find_func(key_part->field, data))
           break;
       }