Fixes:
- Bug #26662: mysqld assertion when creating temporary (InnoDB) table on a tmpfs filesystem
Fix by not open(2)ing with O_DIRECT but rather calling fcntl(2) to set
this flag immediately after open(2)ing. This way an error caused by
O_DIRECT not being supported can easily be ignored.
- Bug #23313: AUTO_INCREMENT=# not reported back for InnoDB tables
- Bug #21404: AUTO_INCREMENT value reset when Adding FKEY (or ALTER?)
Report the current value of the AUTO_INCREMENT counter to MySQL.
Bug #27381: InnoDB exits when attempting to rename table to non-existant database
Fix Bug#27381 by calling os_file_handle_error_no_exit() instead of
os_file_handle_error().
innodb-5.1-ss1318
innodb-5.1-ss1330
innodb-5.1-ss1332
innodb-5.1-ss1340
Fixes:
- Bug #21409: Incorrect result returned when in READ-COMMITTED with query_cache ON
At low transaction isolation levels we let each consistent read set
its own snapshot.
- Bug #23666: strange Innodb_row_lock_time_% values in show status; also millisecs wrong
On Windows ut_usectime returns secs and usecs relative to the UNIX
epoch (which is Jan, 1 1970).
- Bug #25494: LATEST DEADLOCK INFORMATION is not always cleared
lock_deadlock_recursive(): When the search depth or length is exceeded,
rewind lock_latest_err_file and display the two transactions at the
point of aborting the search.
- Bug #25927: Foreign key with ON DELETE SET NULL on NOT NULL can crash server
Prevent ALTER TABLE ... MODIFY ... NOT NULL on columns for which
there is a foreign key constraint ON ... SET NULL.
- Bug #26835: Repeatable corruption of utf8-enabled tables inside InnoDB
The bug could be reproduced as follows:
Define a table so that the first column of the clustered index is
a VARCHAR or a UTF-8 CHAR in a collation where sequences of bytes
of differing length are considered equivalent.
Insert and delete a record. Before the delete-marked record is
purged, insert another record whose first column is of different
length but equivalent to the first record. Under certain conditions,
the insertion can be incorrectly performed as update-in-place.
Likewise, an operation that could be done as update-in-place can
unnecessarily be performed as delete and insert, but that would not
cause corruption but merely degraded performance.
Add innodb_stats_on_metadata option, which enables gathering
index statistics when processing metadata commands such as
SHOW TABLE STATUS. Default behavior of the server does not
change (this option is enabled by default).
"Server Variables for Plugins"
Implement support for plugins to declare server variables.
Demonstrate functionality by removing InnoDB specific code from sql/*
New feature for HASH - HASH_UNIQUE flag
New feature for DYNAMIC_ARRAY - initializer accepts preallocated ptr.
Completed support for plugin reference counting.
Fixed compile-pentium64 scripts
Fixed wrong estimate of update_with_key_prefix in sql-bench
Merge bk-internal.mysql.com:/home/bk/mysql-5.1 into mysql.com:/home/my/mysql-5.1
Fixed unsafe define of uint4korr()
Fixed that --extern works with mysql-test-run.pl
Small trivial cleanups
This also fixes a bug in counting number of rows that are updated when we have many simultanous queries
Move all connection handling and command exectuion main loop from sql_parse.cc to sql_connection.cc
Split handle_one_connection() into reusable sub functions.
Split create_new_thread() into reusable sub functions.
Added thread_scheduler; Preliminary interface code for future thread_handling code.
Use 'my_thread_id' for internal thread id's
Make thr_alarm_kill() to depend on thread_id instead of thread
Make thr_abort_locks_for_thread() depend on thread_id instead of thread
In store_globals(), set my_thread_var->id to be thd->thread_id.
Use my_thread_var->id as basis for my_thread_name()
The above changes makes the connection we have between THD and threads more soft.
Added a lot of DBUG_PRINT() and DBUG_ASSERT() functions
Fixed compiler warnings
Fixed core dumps when running with --debug
Removed setting of signal masks (was never used)
Made event code call pthread_exit() (portability fix)
Fixed that event code doesn't call DBUG_xxx functions before my_thread_init() is called.
Made handling of thread_id and thd->variables.pseudo_thread_id uniform.
Removed one common 'not freed memory' warning from mysqltest
Fixed a couple of usage of not initialized warnings (unlikely cases)
Suppress compiler warnings from bdb and (for the moment) warnings from ndb
Fixes:
- Bug #24712: SHOW TABLE STATUS for file-per-table showing incorrect time fields
- Bug #24386: Performance degradation caused by instrumentation in mutex_struct
- Bug #24190: many exportable definitions of field_in_record_is_null
- Bug #21468: InnoDB crash during recovery with corrupted data pages: XA bug?
Moved .progress files into the log directory
Moved 'cluster' database tables into the MySQL database, to not have 'cluster' beeing a reserved database name
Fixed bug where mysqld got a core dump when trying to use a table created by MySQL 3.23
Fixed some compiler warnings
Fixed small memory leak in libmysql
Note that this doesn't changeset doesn't include the new mysqldump.c code required to run some tests. This will be added when I merge 5.0 to 5.1
and so the engine calls current_thd to derive transaction information;
instead we now pass THD to those functions, it looks more logical
(it makes the implicit current_thd parameter more visible).
Approved by Brian and Monty.
Bugs fixed:
- Bug #20877: InnoDB data dictionary memory footprint is too big
- Bug #13544: Second delete of same row in transaction illustrates non-optimal locking
- Bug #20791: valgrind errors in InnoDB
In practice this means that handlerton is now created by the server and is passed to the engine. Plugin startups can now also control how plugins are inited (and can optionally pass values). Bit more flexibility to those who want to write plugin interfaces to the database.
