5.1->5.5 merge

mysql-test/r/func_time.result

@@ -1347,6 +1347,12 @@ Warning	1292	Truncated incorrect time value: ''
 Warning	1292	Truncated incorrect time value: ''
 Warning	1292	Truncated incorrect time value: ''
 DROP TABLE t1;
+#
+# Bug#11766112  59151:UNINITIALIZED VALUES IN EXTRACT_DATE_TIME WITH STR_TO_DATE(SPACE(..) ...
+#
+SELECT STR_TO_DATE(SPACE(2),'1');
+STR_TO_DATE(SPACE(2),'1')
+0000-00-00
 End of 5.1 tests
 #
 # Bug#57039: constant subtime expression returns incorrect result.

mysql-test/t/func_time.test

@@ -862,6 +862,12 @@ INSERT INTO t1 VALUES (''),('');
 SELECT COUNT(*) FROM t1 GROUP BY TIME_TO_SEC(a);
 DROP TABLE t1;
 
+--echo #
+--echo # Bug#11766112  59151:UNINITIALIZED VALUES IN EXTRACT_DATE_TIME WITH STR_TO_DATE(SPACE(..) ...
+--echo #
+
+SELECT STR_TO_DATE(SPACE(2),'1');
+
 --echo End of 5.1 tests
 
 --echo #

sql/item_timefunc.cc

@@ -315,8 +315,8 @@ static bool extract_date_time(DATE_TIME_FORMAT *format,
   for (; ptr != end && val != val_end; ptr++)
   {
     /* Skip pre-space between each argument */
-    while (val != val_end && my_isspace(cs, *val))
-      val++;
+    if ((val+= cs->cset->scan(cs, val, val_end, MY_SEQ_SPACES)) >= val_end)
+      break;
 
     if (*ptr == '%' && ptr+1 != end)
     {