Fix Bug #9526 in 5.0: MySQL ENUM and SET columns are internally actually unsigned integer types; we must take care that old tables still treat ENUM and SET (incorrectly) as a character string, while new created tables treat it correctly as an unsigned integer
Correct the fix of Bug #9526 : InnoDB must use its own internal type info for old tables, so that old ENUMs and SETs still are (incorrectly) seen as char strings; we do not dare to allow InnoDB sometimes to see the type as an integer type for those old tables
Fix bug #9314 in InnoDB true VARCHAR: InnoDB stored the 'position' of a row wrong in a column prefix primary key index; this could cause MySQL to complain 'ERROR 1032: Can't find record in ...' in an update of the primary key, and also some ORDER BY or DISTINCT queries
Fix bug: InnoDB created all indexes on true VARCHARs as column prefix keys because field->pack_length() for a true VARCHAR is bigger than key_part->length; FOREIGN KEYs could not be created on true VARCHARs then
Fix a crash in a simple search with a key: the dtype->len of a true VARCHAR is the payload maximum len in bytes: it does not include the 2 bytes MySQL uses to store the string length
ha_innodb.cc:
Fix a crash in true VARCHARs in test-innodb: we passed a wrong pointer to the column conversion in an UPDATE
rowid_order_innodb.result, ps_3innodb.result, innodb.result, endspace.result:
Edit InnoDB test results to reflect the arrival of true VARCHARs
Add a settable session variable innodb_support_xa; setting it to 0 can save up to 10 % of CPU time and 150 bytes of space in each undo log
trx0trx.h, trx0undo.c, trx0trx.c, trx0roll.c:
Enable XA if innodb_support_xa is not set to 0; make prepare to do log fsync's according to innodb_flush_log_at_trx_commit
In TRUNCATE TABLE, MySQL may call innobase_xa_prepare() even though there is no active transaction because it was committed in ha_innobase::delete_all_rows(); in innobase_xa_prepare() InnoDB starts then a new transaction; let us adjust the trx->active_trans flag accordingly
Fix a glitch reported by Guilhem: release the memory allocated for innodb_internal_... if innobase_init() fails; cleanups: in ha_innodb, you should use the InnoDB formatting style for the source code
single table DELETE...SELECT clauses when innobase_locks_unsafe_for_binlog
is used and isolation level of the transaction is not serializable.
InnoDB uses consistent read in these cases for a selected table.
Backported from 5.0.x.
single table DELETE...SELECT clauses when innobase_locks_unsafe_for_binlog
is used and isolation level of the transaction is not serializable.
InnoDB uses consistent read in these cases for a selected table.
"Add a comment why data modifying SQL statements MUST always use a locking read in tables that they read: otherwise the execution is not serializable, and in many cases is not well-defined; we also merged the associated bug fix from 4.1"
Merge from 4.0: Fix a theoretical hang over the adaptive hash latch in InnoDB if one runs INSERT ... SELECT ... (binlog not enabled), or a multi-table UPDATE or DELETE, and only the read tables are InnoDB type, the rest are MyISAM; this also fixes bug #7879 for InnoDB type tables
Fix a theoretical hang over the adaptive hash latch in InnoDB if one runs INSERT ... SELECT ... (binlog not enabled), or a multi-table UPDATE or DELETE, and only the read tables are InnoDB type, the rest are MyISAM; this also fixes bug #7879 for InnoDB type tables
Add comments about why the InnoDB latching order is obeyed also for the MySQL query cache mutex; add an error printf if that is not the case
sync0sync.h:
Assign sync0sync.h ranks also for the MySQL query cache mutex and the MySQL binlog mutex; the latching order must be obeyed also for these
row0ins.c:
Add a comment why the query cache invalidate operation cannot deadlock in a cascaded FOREIGN KEY operation
Split TABLE to TABLE and TABLE_SHARE (TABLE_SHARE is still allocated as part of table, will be fixed soon)
Created Field::make_field() and made Field_num::make_field() to call this
Added 'TABLE_SHARE->db' that points to database name; Changed all usage of table_cache_key as database name to use this instead
Changed field->table_name to point to pointer to alias. This allows us to change alias for a table by just updating one pointer.
Renamed TABLE_SHARE->real_name to table_name
Renamed TABLE->table_name to alias
Renamed TABLE_LIST->real_name to table_name
Fix InnoDB critical bug #7496; we scan the InnoDB data dictionary also at a normal mysqld startup, and create the spaces, so that we know the mapping space id -> .ibd file name; fix an infinite loop if DISCARD TABLESPACE coincides with INSERT or some other table operation; fix a potential crash if DISCARD TABLESPACE coincides with a cascaded FOREIGN KEY operation in the same table; do not allow DISCARD TABLESPACE of a referenced table if FOREIGN_KEY_CHECKS=1
Logging to logging@openlogging.org accepted
sql_yacc.yy, sql_parse.cc, sql_lex.h, lex.h:
Implements the SHOW MUTEX STATUS command
set_var.cc, mysqld.cc, mysql_priv.h:
Added new GLOBAL variable timed_mutexes
ha_innodb.h:
New function innodb_mutex_show_status
ha_innodb.cc:
Added new innodb variables in SHOW STATUS
Implements the SHOW MUTEX STATUS command
innodb.test, innodb.result:
Added new row_lock_waits status variables tests.
variables.test, variables.result:
test new variable timed_mutexes
ut0ut.c:
New function ut_usectime.
sync0sync.c:
Mutex counting.
sync0rw.c:
New mutex parameters initialization.
srv0srv.c:
Counting row lock waits
row0sel.c, row0mysql.c:
Setting row_lock or table_lock state to thd.
que0que.c:
Added default no_lock_state to thd.
univ.i:
Added UNIV_SRV_PRINT_LATCH_WAITS debug define
sync0sync.ic:
Count mutex using.
sync0sync.h:
Added new parameters to mutex structure for counting.
sync0rw.h:
Added new parameters to rw_create_func.
srv0srv.h:
Added new innodb varuables to SHOW STATUS.
que0que.h:
Added thread lock states.
Add a comment that no InnoDB table lock is now acquired in LOCK TABLES if AUTOCOMMIT=1. This helps to avoid deadlocks when porting old MyISAM applications to InnoDB.
If AUTOCOMMIT=1, do not acquire an InnoDB table lock in LOCK TABLES; this makes porting of old MyISAM applications to InnoDB easier, since in that mode InnoDB table locks caused deadlocks very easily
Fix for the 0xA0 character problem in the InnoDB FOREIGN KEY parser: if my_isspace() treats 0xA0 as space, then let InnoDB do the same; this might break some multi-byte charset id's, though for big5, ujis, sjis this seems not to change the current behavior (I checked the tables in /share/charsets); this fix must NOT be merged to 4.1 because in 4.1 everything is in UTF-8
transactional table locks to tables mentioned in the query. These locks
are released at the end of the transaction automatically.
This is fix for bugs #5655, #5998 and issue #3762.
Renamed HA_VAR_LENGTH to HA_VAR_LENGTH_PART
Renamed in all files FIELD_TYPE_STRING and FIELD_TYPE_VAR_STRING to MYSQL_TYPE_STRING and MYSQL_TYPE_VAR_STRING to make it easy to catch all possible errors
Added support for VARCHAR KEYS to heap
Removed support for ISAM
Now only long VARCHAR columns are changed to TEXT on demand (not CHAR)
Internal temporary files can now use fixed length tables if the used VARCHAR columns are short
Sergey Petrunia's ROR code fails to tell handlers that they should retrieve the primary key columns; let InnoDB ALWAYS retrieve them, to fix many bugs and potential bugs
enabled query cache for ndb
modified engine interface somewhat
sql/ha_innodb.h
enabled query cache for ndb
modified engine interface somewhat
sql/ha_ndbcluster.cc
enabled query cache for ndb
modified engine interface somewhat
ndb will only allow caching and retrieval if running autocommit
- return false, but do not invalidate
commit count is used as engine data, i.e.
- store commit count before store of cache
- allow retrieval if commit count has not changed on a table
- invalidate if commit count has changed
sql/ha_ndbcluster.h
enabled query cache for ndb
modified engine interface somewhat
sql/handler.cc
enabled query cache for ndb
modified engine interface somewhat
sql/handler.h
enabled query cache for ndb
modified engine interface somewhat
new virtual handler method cached_table_registration called on each table before alowing store in query cache
- return TRUE - ok to cache, FALSE - not allowed to cache, invalidate queries if engine_data below has changed
- sets ulonglong (engine_data) that is stored in query cache for each table
- sets callback to be called for each table before usage of cached query, callback = 0 -> no check later
sql/mysql_priv.h
enabled query cache for ndb
modified engine interface somewhat
callcack prototype for callback to engine before query cache retrieval
sql/sql_cache.cc
enabled query cache for ndb
modified engine interface somewhat
if callback is set on table in cache, do callback to check if allowed to use cache
if not allowed to use cache, check if engine_data has changed, if so, invalidate all queries with that table
+ changes to store and pass callback and engine_data around
sql/sql_cache.h
enabled query cache for ndb
modified engine interface somewhat
changes to store callback and engine_data
sql/table.h
enabled query cache for ndb
modified engine interface somewhat
changes to store callback and engine_data
Anthony's http://lists.mysql.com/internals/18505 patch for DROP DATABASE broke caused it to return errno if .ibd files were present (bas_ext() was obsolete in ha_innodb.cc); fix this
Manually ported this bug fix from 4.0:
Fix InnoDB bug #6287: if one uses INSERT IGNORE to insert several rows at a time, and the first inserts are ignored because of a duplicate key collision, then InnoDB in a replication slave assigns AUTO_INCREMENT values 1 bigger than in the master
Fix InnoDB bug #6287: if one uses INSERT IGNORE to insert several rows at a time, and the first inserts are ignored because of a duplicate key collision, then InnoDB in a replication slave assigns AUTO_INCREMENT values 1 bigger than in the master
