Commit 89c2b7fc authored by heikki@donna.mysql.fi's avatar heikki@donna.mysql.fi
Browse files

rem0cmp.c: 

  Prevent a foreign key constraint references between INT columns where the signedness is different
parent 44a2ef6c

innobase/rem/rem0cmp.c

+10 −0
Original line number Diff line number Diff line
@@ -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) {