diff options
| author | heikki@donna.mysql.fi <> | 2002-02-07 12:05:02 +0200 |
|---|---|---|
| committer | heikki@donna.mysql.fi <> | 2002-02-07 12:05:02 +0200 |
| commit | 89c2b7fc8e6dc8a8303a60d1a9323262f572ba09 (patch) | |
| tree | 24871c34e29ee7afa2dbd75899cd83d2929f028a /innobase/rem | |
| parent | 44a2ef6cdccbdf9e5e29ee143e8f62cd43cc6a9c (diff) | |
| download | mariadb-git-89c2b7fc8e6dc8a8303a60d1a9323262f572ba09.tar.gz | |
rem0cmp.c:
Prevent a foreign key constraint references between INT columns where the signedness is different
Diffstat (limited to 'innobase/rem')
| -rw-r--r-- | innobase/rem/rem0cmp.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/innobase/rem/rem0cmp.c b/innobase/rem/rem0cmp.c index 363bb013ac9..60828b122ba 100644 --- a/innobase/rem/rem0cmp.c +++ b/innobase/rem/rem0cmp.c @@ -113,6 +113,16 @@ cmp_types_are_equal( return(FALSE); } + if (type1->mtype == DATA_INT + && (type1->prtype & DATA_UNSIGNED) + != (type2->prtype & DATA_UNSIGNED)) { + /* The storage format of an unsigned integer is different + from a signed integer: in a signed integer we OR + 0x8000... to the value of positive integers. */ + + return(FALSE); + } + if (type1->mtype == DATA_MYSQL || type1->mtype == DATA_VARMYSQL) { |