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-rw-r--r--mysql-test/r/date_formats.result3
-rw-r--r--mysql-test/t/date_formats.test2
-rw-r--r--sql/item_timefunc.cc2
3 files changed, 5 insertions, 2 deletions
diff --git a/mysql-test/r/date_formats.result b/mysql-test/r/date_formats.result
index b2dc1f7a67b..014eeed27e7 100644
--- a/mysql-test/r/date_formats.result
+++ b/mysql-test/r/date_formats.result
@@ -470,3 +470,6 @@ NULL
select str_to_date( NULL, 1 );
str_to_date( NULL, 1 )
NULL
+select str_to_date( 1, IF(1=1,NULL,NULL) );
+str_to_date( 1, IF(1=1,NULL,NULL) )
+NULL
diff --git a/mysql-test/t/date_formats.test b/mysql-test/t/date_formats.test
index dd31f1509c0..78b4482a94a 100644
--- a/mysql-test/t/date_formats.test
+++ b/mysql-test/t/date_formats.test
@@ -274,5 +274,5 @@ drop table t1;
#
select str_to_date( 1, NULL );
select str_to_date( NULL, 1 );
-
+select str_to_date( 1, IF(1=1,NULL,NULL) );
# End of 4.1 tests
diff --git a/sql/item_timefunc.cc b/sql/item_timefunc.cc
index b5a9064c960..d6b57464d59 100644
--- a/sql/item_timefunc.cc
+++ b/sql/item_timefunc.cc
@@ -2750,9 +2750,9 @@ void Item_func_str_to_date::fix_length_and_dec()
cached_field_type= MYSQL_TYPE_STRING;
max_length= MAX_DATETIME_FULL_WIDTH*MY_CHARSET_BIN_MB_MAXLEN;
cached_timestamp_type= MYSQL_TIMESTAMP_NONE;
+ format= args[1]->val_str(&format_str);
if (!args[1]->null_value && (const_item= args[1]->const_item()))
{
- format= args[1]->val_str(&format_str);
cached_format_type= get_date_time_result_type(format->ptr(),
format->length());
switch (cached_format_type) {