Made the parser to support parenthesis around UNION branches.
This is done by amending the rules of the parser so it generates the correct
structure.
Currently it supports arbitrary subquery/join/parenthesis operations in the
EXISTS clause.
In the IN/scalar subquery case it will allow adding nested parenthesis only
if there is an UNION clause after the parenthesis. Otherwise it will just
treat the multiple nested parenthesis as a scalar expression.
It adds extra lex level for ((SELECT ...) UNION ...) to accommodate for the
UNION clause.
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.
event' from master"
Since there is no repeatable test case, and this is obviously wrong, this is
the most conservative change that might possibly work.
The syscall read() wasn't checked for a negative return value for an
interrupted read. The kernel sys_read() returns -EINTR, and the "library"
layer maps that to return value of -1 and sets errno to EINTR. It's
impossible (on Linux) for read() to set errno EINTR without the return
value being -1 .
So, if we're checking for EINTR behavior, we should not require that the
return value be zero.
- Use the "%.*b" format when printing prepared and exeuted prepared statements to the log.
- Add test case to check that also prepared statements end up in the query log
Bug#14346 Prepared statements corrupting general log/server memory
- Use "stmt->query" when logging the newly prepared query instead of "packet"
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.
