Bug#33464: DROP FUNCTION caused a crash

The cause of the crash is an assertion failure that we do not emit 
an error message (grant not found) and then return "ok".  The 
assertion is valid, and we were ignoring the buggy behavior prior 
to the "Diagnostics" result-verification.

Use an error handler to mutate innocuous missing-grant errors, when 
removing routines, into warnings.

1 files changed, 62 insertions, 0 deletions

diff --git a/mysql-test/t/drop.test b/mysql-test/t/drop.test
index a79044436eb..3dd180f2d78 100644
--- a/mysql-test/t/drop.test
+++ b/mysql-test/t/drop.test
@@ -134,4 +134,66 @@ drop table mysql_test.`#sql-347f_8`;
 copy_file $MYSQLTEST_VARDIR/master-data/mysql_test/t1.frm $MYSQLTEST_VARDIR/master-data/mysql_test/#sql-347f_6.frm;
 drop database mysql_test;
 
+
+#
+# Bug#33464: DROP FUNCTION caused a crash.
+#
+CREATE DATABASE dbbug33464;
+CREATE USER 'userbug33464'@'localhost';
+
+GRANT CREATE ROUTINE ON dbbug33464.* TO 'userbug33464'@'localhost';
+
+--replace_result $MASTER_MYPORT MYSQL_PORT $MASTER_MYSOCK MYSQL_SOCK
+connect (connbug33464, localhost, userbug33464, , dbbug33464);
+--source suite/funcs_1/include/show_connection.inc
+
+--disable_warnings
+DROP PROCEDURE IF EXISTS sp3;
+DROP FUNCTION IF EXISTS fn1;
+--enable_warnings
+
+delimiter //;
+CREATE PROCEDURE sp3(v1 char(20))
+BEGIN
+   SELECT * from dbbug33464.t6 where t6.f2= 'xyz';
+END//
+delimiter ;//
+
+delimiter //;
+CREATE FUNCTION fn1() returns char(50) SQL SECURITY INVOKER
+BEGIN
+   return 1;
+END//
+delimiter ;//
+
+delimiter //;
+CREATE FUNCTION fn2() returns char(50) SQL SECURITY DEFINER
+BEGIN
+   return 2;
+END//
+delimiter ;//
+
+disconnect connbug33464;
+
+# cleanup
+connection default;
+USE dbbug33464;
+--source suite/funcs_1/include/show_connection.inc
+
+SELECT fn1();
+SELECT fn2();
+
+--error 0, ER_CANNOT_USER
+DROP USER 'userbug33464'@'localhost';
+
+DROP FUNCTION fn1;
+DROP FUNCTION fn2;
+DROP PROCEDURE sp3;
+
+--error 0, ER_CANNOT_USER
+DROP USER 'userbug33464'@'localhost';
+
+use test;
+DROP DATABASE dbbug33464;
+
 --echo End of 5.1 tests