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| author | unknown <cmiller@zippy.cornsilk.net> | 2006-11-06 17:13:19 -0500 |
|---|---|---|
| committer | unknown <cmiller@zippy.cornsilk.net> | 2006-11-06 17:13:19 -0500 |
| commit | 2b35fee8ab4bce7c40b95cb6b3b3593bd0960546 (patch) | |
| tree | bed54dd373e9401ad43610e0d42dddde20eb40d7 /sql/item_func.cc | |
| parent | e1a722b2d3a428c650bf08527b8c9ed9bdbd3e08 (diff) | |
| download | mariadb-git-2b35fee8ab4bce7c40b95cb6b3b3593bd0960546.tar.gz | |
Bug#23411: ... MOD-ing zero returns strange result
The Item_func_mod objects never had maybe_null set, so users had no reason
to expect that they can be NULL, and may therefore deduce wrong results.
Now, set maybe_null.
mysql-test/r/func_test.result:
Verify that the predictions are true.
mysql-test/t/func_test.test:
Verify that the predictions are true.
sql/item_func.cc:
MOD functions may be NULL.
Diffstat (limited to 'sql/item_func.cc')
| -rw-r--r-- | sql/item_func.cc | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sql/item_func.cc b/sql/item_func.cc index 1af49179aee..117ae19137b 100644 --- a/sql/item_func.cc +++ b/sql/item_func.cc @@ -96,7 +96,7 @@ Item_func::Item_func(THD *thd, Item_func *item) /* - Resolve references to table column for a function and it's argument + Resolve references to table column for a function and its argument SYNOPSIS: fix_fields() @@ -707,6 +707,7 @@ longlong Item_func_mod::val_int() void Item_func_mod::fix_length_and_dec() { Item_num_op::fix_length_and_dec(); + maybe_null= 1; } |