When statement to be prepared contained CREATE PROCEDURE, CREATE FUNCTION
or CREATE TRIGGER statements with a syntax error in it, the preparation
would fail with syntax error message, but the memory could be corrupted.
The problem occurred because we switch memroot when parse stored
routine or trigger definitions, and on parse error we restored the
original memroot only after performing some memory operations. In more
detail:
- prepared statement would activate its own memory root to parse
the definition of the stored procedure.
- SP would reset this memory root with its own memory root to
parse SP statements
- a syntax error would happen
- prepared statement would restore the original memory root
- stored procedure would restore what it thinks was the original
memory root, but actually was the statement memory root.
That led to double free - in destruction of the statement and in
a next call to mysql_parse().
The solution is to restore memroot right after the failed parsing.
into salvation.intern.azundris.com:/home/tnurnberg/21913/my50-21913
21913: DATE_FORMAT() Crashes mysql server if I use it through mysql-connector-j driver.
Variable character_set_results can legally be NULL (for "no conversion.")
This could result in a NULL deref that crashed the server. Fixed.
(Although ran some additional precursory tests to see whether I could break
anything else, but no breakage so far.)
Variable character_set_results can legally be NULL (for "no conversion.")
This could result in a NULL deref that crashed the server. Fixed.
(Although ran some additional precursory tests to see whether I could break
anything else, but no breakage so far.)
start instance; kill mysqlmanager; show ...
The problem was that Instance Manager didn't close client
sockets (sockets for client connections) on execing mysqld
instance. So, mysqld-instance inherits these descriptors.
The fix is to set close-on-exec flag for each client socket.
The problem was due to a prior fix for BUG 9676, which limited
the rows stored in a temporary table to the LIMIT clause. This
optimization is not applicable to non-group queries with aggregate
functions. The fix disables the optimization in this case.
when a range condition use an invalid DATETIME constant.
Now we do not use invalid DATETIME constants to form end keys for
range intervals: range analysis just ignores predicates with such
constants.
doesn't find the column"
When a user was using 4.1 tables with VARCHAR column and 5.0 server
and a query that used a temporary table to resolve itself, the
table metadata for the varchar column sent to client was incorrect:
MYSQL_FIELD::table member was empty.
The bug was caused by implicit "upgrade" from old VARCHAR to new
VARCHAR hard-coded in Field::new_field, which did not preserve
the information about the original table. Thus, the field metadata
of the "upgraded" field pointed to an auxiliary temporary table
created for query execution.
The fix is to copy the pointer to the original table to the new field.
- BUG#15934: Instance manager fails to work;
- BUG#18020: IM connect problem;
- BUG#18027: IM: Server_ID differs;
- BUG#18033: IM: Server_ID not reported;
- BUG#21331: Instance Manager: Connect problems in tests;
The only test suite has been changed
(server codebase has not been modified).
When a view was used inside a trigger or a function, lock type for
tables used in a view was always set to READ (thus making the view
non-updatable), even if we were trying to update the view.
The solution is to set lock type properly.
init_dumping now accepts a function pointer to the table or view specific init_dumping function. This allows both tables and views to use the init_dumping function.
