bzr commit into mysql-5.1 branch (sergey.glukhov:3638) Bug#11765216

[Sergey Glukhov]

#At file:///home/gluh/MySQL/mysql-5.1/ based on revid:georgi.kodinov@stripped

 3638 Sergey Glukhov	2011-03-28
      Bug#11765216  58154: UNINITIALIZED VARIABLE FORMAT IN STR_TO_DATE FUNCTION
      Valgrind warning happens due to uninitialized cached_format_type field
      which is used later in Item_func_str_to_date::val_str method.
      The fix is to init cached_format_type field.
     @ mysql-test/r/func_time.result
        test case
     @ mysql-test/t/func_time.test
        test case
     @ sql/item_timefunc.cc
        init cached_format_type field

    modified:
      mysql-test/r/func_time.result
      mysql-test/t/func_time.test
      sql/item_timefunc.cc
=== modified file 'mysql-test/r/func_time.result'
--- a/mysql-test/r/func_time.result	2011-03-28 07:53:18 +0000
+++ b/mysql-test/r/func_time.result	2011-03-28 13:24:25 +0000
@@ -1381,4 +1381,10 @@ DROP TABLE t1;
 SELECT STR_TO_DATE(SPACE(2),'1');
 STR_TO_DATE(SPACE(2),'1')
 0000-00-00
+#
+# Bug#11765216  58154: UNINITIALIZED VARIABLE FORMAT IN STR_TO_DATE FUNCTION
+#
+SET GLOBAL SQL_MODE='';
+DO  STR_TO_DATE((''), FROM_DAYS(@@GLOBAL.SQL_MODE));
+SET GLOBAL SQL_MODE=DEFAULT;
 End of 5.1 tests

=== modified file 'mysql-test/t/func_time.test'
--- a/mysql-test/t/func_time.test	2011-03-28 07:53:18 +0000
+++ b/mysql-test/t/func_time.test	2011-03-28 13:24:25 +0000
@@ -887,4 +887,12 @@ DROP TABLE t1;
 
 SELECT STR_TO_DATE(SPACE(2),'1');
 
+--echo #
+--echo # Bug#11765216  58154: UNINITIALIZED VARIABLE FORMAT IN STR_TO_DATE FUNCTION
+--echo #
+
+SET GLOBAL SQL_MODE='';
+DO  STR_TO_DATE((''), FROM_DAYS(@@GLOBAL.SQL_MODE));
+SET GLOBAL SQL_MODE=DEFAULT;
+
 --echo End of 5.1 tests

=== modified file 'sql/item_timefunc.cc'
--- a/sql/item_timefunc.cc	2011-03-28 07:53:18 +0000
+++ b/sql/item_timefunc.cc	2011-03-28 13:24:25 +0000
@@ -3293,6 +3293,7 @@ void Item_func_str_to_date::fix_length_a
 {
   maybe_null= 1;
   decimals=0;
+  cached_format_type= DATE_TIME;
   cached_field_type= MYSQL_TYPE_DATETIME;
   max_length= MAX_DATETIME_FULL_WIDTH*MY_CHARSET_BIN_MB_MAXLEN;
   cached_timestamp_type= MYSQL_TIMESTAMP_NONE;


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