into  moonlight.home:/home/tomash/src/mysql_ab/mysql-5.1-bug24404

The problem was that if a prepared statement accessed a view, the
access to the tables listed in the query after that view was done in
the security context of the view.

The bug was in the assigning of the security context to the tables
belonging to a view: we traversed the list of all query tables
instead.  It didn't show up in the normal (non-prepared) statements
because of the different order of the steps of checking privileges
and descending into a view for normal and prepared statements.

The solution is to traverse the list and stop once the last table
belonging to the view was processed.

into  bodhi.local:/opt/local/work/mysql-5.1-runtime

into  bodhi.local:/opt/local/work/mysql-5.1-runtime

into  bodhi.local:/opt/local/work/mysql-5.0-runtime-debug-max

by the patch for Bug#4968

into  bodhi.local:/opt/local/work/mysql-5.1-runtime

into  bodhi.local:/opt/local/work/mysql-5.1-runtime

into  bodhi.local:/opt/local/work/mysql-5.0-runtime

into  bodhi.local:/opt/local/work/mysql-5.1-runtime

into  bodhi.local:/opt/local/work/mysql-5.1-runtime

into  bodhi.local:/opt/local/work/mysql-5.1-runtime

into  mockturtle.local:/home/dlenev/src/mysql-5.0-bg20390-2

into  mockturtle.local:/home/dlenev/src/mysql-5.1-bg20390

into  weblab.(none):/home/marcsql/TREE/mysql-5.0-6298

into  bodhi.local:/opt/local/work/mysql-5.1-root

into  bodhi.local:/opt/local/work/mysql-5.0-runtime

into  bodhi.local:/opt/local/work/mysql-5.1-runtime

into  bodhi.local:/opt/local/work/mysql-5.0-runtime

into  trift2.:/MySQL/M50/push-5.0

into  mockturtle.local:/home/dlenev/src/mysql-5.1-bg20390

into  mockturtle.local:/home/dlenev/src/mysql-5.0-bg20390-2

into  bodhi.local:/opt/local/work/mysql-5.0-4968-to-push

into  bodhi.local:/opt/local/work/mysql-4.1-4968-to-push

into  bodhi.local:/opt/local/work/mysql-5.1-4968-null-merge

into  mockturtle.local:/home/dlenev/src/mysql-5.1-bg20390

into  mysql.com:/home/kent/bk/tmp2/mysql-5.1-build

of untouched rows in full table scans".

SELECT ... FOR UPDATE/LOCK IN SHARE MODE statements as well as
UPDATE/DELETE statements which were executed using full table
scan were not releasing locks on rows which didn't satisfy
WHERE condition.
This bug surfaced in 5.0 and affected NDB tables. (InnoDB tables
intentionally don't support such unlocking in default mode).

This problem occured because code implementing join didn't call
handler::unlock_row() for rows which didn't satisfy part of condition
attached to this particular table/level of nested loop. So we solve
the problem adding this call.
Note that we already had this call in place in 4.1 but it was lost
(actually not quite correctly placed) when we have introduced nested 
joins.

Also note that additional QA should be requested once this patch is
pushed as interaction between handler::unlock_row() and many recent
MySQL features such as subqueries, unions, views is not tested enough.

into  mysql.com:/home/kent/bk/tmp2/mysql-5.1-build

into  trift2.:/MySQL/M51/tmp-5.1

into  bodhi.local:/opt/local/work/mysql-5.1-runtime

into  bodhi.local:/opt/local/work/mysql-5.0-runtime

into  bodhi.local:/opt/local/work/mysql-5.0-runtime