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Bug #26537: item_unhex() was not expected

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to return NULL for non-NULL arguments.
This is not the case as it can return NULL
for invalid hexidecimal strings.
Fixed by setting the maybe_null flag.


mysql-test/r/func_str.result:
  Bug #26537: test case
mysql-test/t/func_str.test:
  Bug #26537: test case
sql/item_strfunc.h:
  Bug #26537: item_unhex() can return NULLs
  even for guaranteed non-null arguments.
This commit is contained in:
unknown 2007-03-02 12:14:50 +02:00
commit 399bf23c1d
3 changed files with 17 additions and 1 deletions
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6
mysql-test/t/func_str.test
View file

@ -1008,4 +1008,10 @@ select repeat('a', cast(2 as unsigned int));
select rpad('abc', cast(5 as unsigned integer), 'x');
select lpad('abc', cast(5 as unsigned integer), 'x');
#
# Bug #26537: UNHEX() IS NULL comparison fails
#
SELECT UNHEX('G');
SELECT UNHEX('G') IS NULL;
--echo End of 5.0 tests