opt_range.cc:

  Fixed buf #11487.
  Added a call of  QUICK_RANGE_SELECT::init to the
  QUICK_RANGE_SELECT::reset method. Without it the second
  evaluation of a subquery employing the range access failed.
subselect.result, subselect.test:
  Added a test case for bug #11487.

mysql-test/r/subselect.result

@@ -2816,3 +2816,24 @@ select * from t1;
 EMPNUM
 E1
 DROP TABLE t1,t2;
+CREATE TABLE t1(select_id BIGINT, values_id BIGINT);
+INSERT INTO t1 VALUES (1, 1);
+CREATE TABLE t2 (select_id BIGINT, values_id BIGINT, 
+PRIMARY KEY(select_id,values_id));
+INSERT INTO t2 VALUES (0, 1), (0, 2), (0, 3), (1, 5);
+SELECT values_id FROM t1 
+WHERE values_id IN (SELECT values_id FROM t2
+WHERE select_id IN (1, 0));
+values_id
+1
+SELECT values_id FROM t1 
+WHERE values_id IN (SELECT values_id FROM t2
+WHERE select_id BETWEEN 0 AND 1);
+values_id
+1
+SELECT values_id FROM t1 
+WHERE values_id IN (SELECT values_id FROM t2
+WHERE select_id = 0 OR select_id = 1);
+values_id
+1
+DROP TABLE t1, t2;

mysql-test/t/subselect.test

@@ -1837,3 +1837,25 @@ WHERE t1.EMPNUM NOT IN
        WHERE t1.EMPNUM = t2.EMPNUM);
 select * from t1;
 DROP TABLE t1,t2;
+
+#
+# Test for bug #11487: range access in a subquery
+#
+
+CREATE TABLE t1(select_id BIGINT, values_id BIGINT);
+INSERT INTO t1 VALUES (1, 1);
+CREATE TABLE t2 (select_id BIGINT, values_id BIGINT, 
+                 PRIMARY KEY(select_id,values_id));
+INSERT INTO t2 VALUES (0, 1), (0, 2), (0, 3), (1, 5);
+
+SELECT values_id FROM t1 
+WHERE values_id IN (SELECT values_id FROM t2
+                    WHERE select_id IN (1, 0));
+SELECT values_id FROM t1 
+WHERE values_id IN (SELECT values_id FROM t2
+                    WHERE select_id BETWEEN 0 AND 1);
+SELECT values_id FROM t1 
+WHERE values_id IN (SELECT values_id FROM t2
+                    WHERE select_id = 0 OR select_id = 1);
+
+DROP TABLE t1, t2;

sql/opt_range.cc

@@ -5992,7 +5992,10 @@ int QUICK_RANGE_SELECT::reset()
   next=0;
   range= NULL;
   cur_range= (QUICK_RANGE**) ranges.buffer;
-  
+
+  if (file->inited == handler::NONE && (error= file->ha_index_init(index)))
+      DBUG_RETURN(error);
+ 
   /* Do not allocate the buffers twice. */
   if (multi_range_length)
   {