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merged 41437 to 5.1-bugteam

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This commit is contained in:
Georgi Kodinov 2009-01-09 19:51:52 +02:00
commit d09185fafa
3 changed files with 13 additions and 0 deletions
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2
mysql-test/r/mysql.result
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@ -186,6 +186,8 @@ delimiter
2
2
2
@z:='1' @z=database()
1 NULL
End of 5.0 tests
WARNING: --server-arg option not supported in this configuration.
Warning (Code 1286): Unknown table engine 'nonexistent'

5
mysql-test/t/mysql.test
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@ -310,6 +310,11 @@ EOF
--exec $MYSQL -c < $MYSQLTEST_VARDIR/tmp/bug38158.sql 2>&1
remove_file $MYSQLTEST_VARDIR/tmp/bug38158.sql;
#
# Bug #41437: Value stored in 'case' lacks charset, causees segfault
#
--exec $MYSQL -e "select @z:='1',@z=database()"
--echo End of 5.0 tests
#

6
sql/item_strfunc.cc
View File

@ -1782,6 +1782,12 @@ Item *Item_func_sysconst::safe_charset_converter(CHARSET_INFO *tocs)
Item_string *conv;
uint conv_errors;
String tmp, cstr, *ostr= val_str(&tmp);
if (null_value)
{
Item *null_item= new Item_null((char *) fully_qualified_func_name());
null_item->collation.set (tocs);
return null_item;
}
cstr.copy(ostr->ptr(), ostr->length(), ostr->charset(), tocs, &conv_errors);
if (conv_errors ||
!(conv= new Item_static_string_func(fully_qualified_func_name(),