There are three issues that caused rpl_killed_ddl fails sporadically
in pb2:
1) thd->clear_error() was not called before create Query event
if operation is executed successfully.
2) DATABASE d2 might do exist because the statement to CREATE or
ALTER it was killed
3) because of bug 43353, kill the query that do DROP FUNCTION or
DROP PROCEDURE can result in SP not found
This patch fixed all above issues by:
1) Called thd->clear_error() if the operation succeeded.
2) Add IF EXISTS to the DROP DATABASE d2 statement
3) Temporarily disabled testing DROP FUNCTION/PROCEDURE IF EXISTS.
mysql-test/t/rpl_killed_ddl.test:
DATABASE d2 might not exists, add IF EXITS to the DROP statement
sql/sql_db.cc:
Called thd->clear_error() if the operation succeeded
----------------------------------------------------------
revno: 2630.10.1
committer: Konstantin Osipov <konstantin@mysql.com>
branch nick: mysql-6.0-lock-tables-tidyup
timestamp: Wed 2008-06-11 15:49:58 +0400
message:
WL#3726, review fixes.
Now that we have metadata locks, we don't need to keep a crippled
TABLE instance in the table cache to indicate that a table is locked.
Remove all code that used this technique. Instead, rely on metadata
locks and use the standard open_table() and close_thread_table()
to manipulate with the table cache tables.
Removes a list of functions that have become unused (see the comment
for sql_base.cc for details).
Under LOCK TABLES, keep a TABLE_LIST instance for each table
that may be temporarily closed. For that, implement an own class for
LOCK TABLES mode, Locked_tables_list.
This is a pre-requisite patch for WL#4144.
This is not exactly a backport: there is no new
online ALTER table in Celosia, so the old alter table
code was changed to work with the new table cache API.
mysql-test/r/lock.result:
Update results (WL#3726 post-review patch).
mysql-test/r/trigger-compat.result:
We take the table from the table cache now, thus no warning.
mysql-test/suite/rpl/r/rpl_trigger.result:
We take the table from the table cache now, thus no warning.
mysql-test/t/lock.test:
Additional tests for LOCK TABLES mode (previously not covered by
the test suite (WL#3726).
sql/field.h:
Remove reopen_table().
sql/lock.cc:
Remove an obsolete parameter of mysql_lock_remove().
It's not used anywhere now either.
sql/mysql_priv.h:
Add 4 new open_table() flags.
Remove declarations of removed functions.
sql/sp_head.cc:
Rename thd->mdl_el_root to thd->locked_tables_root.
sql/sql_acl.cc:
Use the new implementation of unlock_locked_tables().
sql/sql_base.cc:
Implement class Locked_tables_list.
Implement close_all_tables_for_name().
Rewrite close_cached_tables() to use the new reopen_tables().
Remove reopen_table(), reopen_tables(), reopen_table_entry()
(ex. open_unireg_entry()), close_data_files_and_leave_as_placeholders(),
close_handle_and_leave_table_as_placeholder(), close_cached_table(),
table_def_change_share(), reattach_merge(), reopen_name_locked_table(),
unlink_open_table().
Move acquisition of a metadata lock into an own function
- open_table_get_mdl_lock().
sql/sql_class.cc:
Deploy class Locked_tables_list.
sql/sql_class.h:
Declare class Locked_tables_list.
Keep one instance of this class in class THD.
Rename mdl_el_root to locked_tables_root.
sql/sql_db.cc:
Update a comment.
sql/sql_insert.cc:
Use the plain open_table() to open a just created table in
CREATE TABLE .. SELECT.
sql/sql_parse.cc:
Use thd->locked_tables_list to enter and leave LTM_LOCK_TABLES mode.
sql/sql_partition.cc:
Deploy the new method of working with partitioned table locks.
sql/sql_servers.cc:
Update to the new signature of unlock_locked_tables().
sql/sql_table.cc:
In mysql_rm_table_part2(), the branch that removes a table under
LOCK TABLES, make sure that the table being dropped
is also removed from THD::locked_tables_list.
Update ALTER TABLE and CREATE TABLE LIKE implementation to use
open_table() and close_all_tables_for_name() instead of
reopen_tables().
sql/sql_trigger.cc:
Use the new locking way.
sql/table.h:
Add TABLE::pos_in_locked_tables, which is used only under
LOCK TABLES.
----------------------------------------------------------
revno: 2630.2.20
committer: Konstantin Osipov <konstantin@mysql.com>
branch nick: mysql-6.0-runtime
timestamp: Fri 2008-06-27 20:10:42 +0400
message:
Fix a regression introduced by WL#3726 when a table was left in the
table cache after DROP DATABASE.
Implementation of DROP DATABASE reads a list of files in the database
directory and constructs from it the list of tables to be dropped.
If the filesystem is case-insensitive and case-preserving, the
table names should be lowercased, because the same has been done
when entries for them were inserted into the table cache.
Skipping this step will lead to orphaned TABLEs left in the table cache.
Fixes lowercase_table2 failure on powermacg5.
sql/sql_db.cc:
Lowercase the table name, it's used to construct the table cache
key.
Backport of:
------------------------------------------------------------
revno: 2630.4.1
committer: Dmitry Lenev <dlenev@mysql.com>
branch nick: mysql-6.0-3726-w
timestamp: Fri 2008-05-23 17:54:03 +0400
message:
WL#3726 "DDL locking for all metadata objects".
After review fixes in progress.
------------------------------------------------------------
This is the first patch in series. It transforms the metadata
locking subsystem to use a dedicated module (mdl.h,cc). No
significant changes in the locking protocol.
The import passes the test suite with the exception of
deprecated/removed 6.0 features, and MERGE tables. The latter
are subject to a fix by WL#4144.
Unfortunately, the original changeset comments got lost in a merge,
thus this import has its own (largely insufficient) comments.
This patch fixes Bug#25144 "replication / binlog with view breaks".
Warning: this patch introduces an incompatible change:
Under LOCK TABLES, it's no longer possible to FLUSH a table that
was not locked for WRITE.
Under LOCK TABLES, it's no longer possible to DROP a table or
VIEW that was not locked for WRITE.
******
Backport of:
------------------------------------------------------------
revno: 2630.4.2
committer: Dmitry Lenev <dlenev@mysql.com>
branch nick: mysql-6.0-3726-w
timestamp: Sat 2008-05-24 14:03:45 +0400
message:
WL#3726 "DDL locking for all metadata objects".
After review fixes in progress.
******
Backport of:
------------------------------------------------------------
revno: 2630.4.3
committer: Dmitry Lenev <dlenev@mysql.com>
branch nick: mysql-6.0-3726-w
timestamp: Sat 2008-05-24 14:08:51 +0400
message:
WL#3726 "DDL locking for all metadata objects"
Fixed failing Windows builds by adding mdl.cc to the lists
of files needed to build server/libmysqld on Windows.
******
Backport of:
------------------------------------------------------------
revno: 2630.4.4
committer: Dmitry Lenev <dlenev@mysql.com>
branch nick: mysql-6.0-3726-w
timestamp: Sat 2008-05-24 21:57:58 +0400
message:
WL#3726 "DDL locking for all metadata objects".
Fix for assert failures in kill.test which occured when one
tried to kill ALTER TABLE statement on merge table while it
was waiting in wait_while_table_is_used() for other connections
to close this table.
These assert failures stemmed from the fact that cleanup code
in this case assumed that temporary table representing new
version of table was open with adding to THD::temporary_tables
list while code which were opening this temporary table wasn't
always fulfilling this.
This patch changes code that opens new version of table to
always do this linking in. It also streamlines cleanup process
for cases when error occurs while we have new version of table
open.
******
WL#3726 "DDL locking for all metadata objects"
Add libmysqld/mdl.cc to .bzrignore.
******
Backport of:
------------------------------------------------------------
revno: 2630.4.6
committer: Dmitry Lenev <dlenev@mysql.com>
branch nick: mysql-6.0-3726-w
timestamp: Sun 2008-05-25 00:33:22 +0400
message:
WL#3726 "DDL locking for all metadata objects".
Addition to the fix of assert failures in kill.test caused by
changes for this worklog.
Make sure we close the new table only once.
.bzrignore:
Add libmysqld/mdl.cc
libmysqld/CMakeLists.txt:
Added mdl.cc to the list of files needed for building of libmysqld.
libmysqld/Makefile.am:
Added files implementing new meta-data locking subsystem to the server.
mysql-test/include/handler.inc:
Use separate connection for waiting while threads performing DDL
operations conflicting with open HANDLER tables reach blocked
state. This is required because now we check and close tables open
by HANDLER statements in this connection conflicting with DDL in
another each time open_tables() is called and thus select from I_S
which is used for waiting will unblock DDL operations if issued
from connection with open HANDLERs.
mysql-test/r/create.result:
Adjusted test case after change in implementation of CREATE TABLE
... SELECT. We no longer have special check in open_table() which
catches the case when we select from the table created. Instead we
rely on unique_table() call which happens after opening and
locking all tables.
mysql-test/r/flush.result:
FLUSH TABLES WITH READ LOCK can no longer happen under LOCK
TABLES. Updated test accordingly.
mysql-test/r/flush_table.result:
Under LOCK TABLES we no longer allow to do FLUSH TABLES for tables
locked for read. Updated test accordingly.
mysql-test/r/handler_innodb.result:
Use separate connection for waiting while threads performing DDL
operations conflicting with open HANDLER tables reach blocked
state. This is required because now we check and close tables open
by HANDLER statements in this connection conflicting with DDL in
another each time open_tables() is called and thus select from I_S
which is used for waiting will unblock DDL operations if issued
from connection with open HANDLERs.
mysql-test/r/handler_myisam.result:
Use separate connection for waiting while threads performing DDL
operations conflicting with open HANDLER tables reach blocked
state. This is required because now we check and close tables open
by HANDLER statements in this connection conflicting with DDL in
another each time open_tables() is called and thus select from I_S
which is used for waiting will unblock DDL operations if issued
from connection with open HANDLERs.
mysql-test/r/information_schema.result:
Additional test for WL#3726 "DDL locking for all metadata
objects". Check that we use high-priority metadata lock requests
when filling I_S tables.
Rearrange tests to match 6.0 better (fewer merge conflicts).
mysql-test/r/kill.result:
Added tests checking that DDL and DML statements waiting for
metadata locks can be interrupted by KILL command.
mysql-test/r/lock.result:
One no longer is allowed to do DROP VIEW under LOCK TABLES even if
this view is locked by LOCK TABLES. The problem is that in such
situation write locks on view are not mutually exclusive so
upgrading metadata lock which is required for dropping of view
will lead to deadlock.
mysql-test/r/partition_column_prune.result:
Update results (same results in 6.0), WL#3726
mysql-test/r/partition_pruning.result:
Update results (same results in 6.0), WL#3726
mysql-test/r/ps_ddl.result:
We no longer invalidate prepared CREATE TABLE ... SELECT statement
if target table changes. This is OK since it is not strictly
necessary.
The first change is wrong, is caused by FLUSH TABLE
now flushing all unused tables. This is a regression that
Dmitri fixed in 6.0 in a follow up patch.
mysql-test/r/sp.result:
Under LOCK TABLES we no longer allow accessing views which were
not explicitly locked. To access view we need to obtain metadata
lock on it and doing this under LOCK TABLES may lead to deadlocks.
mysql-test/r/view.result:
One no longer is allowed to do DROP VIEW under LOCK TABLES even if
this view is locked by LOCK TABLES. The problem is that in such
situation even "write locks" on view are not mutually exclusive so
upgrading metadata lock which is required for dropping of view
will lead to deadlock
mysql-test/r/view_grant.result:
ALTER VIEW implementation was changed to open a view only after
checking that user which does alter has appropriate privileges on
it. This means that in case when user's privileges are
insufficient for this we won't check that new view definer is the
same as original one or user performing alter has SUPER privilege.
Adjusted test case accordingly.
mysql-test/r/view_multi.result:
Added test case for bug#25144 "replication / binlog with view
breaks".
mysql-test/suite/rpl/t/disabled.def:
Disable test for deprecated features (they don't work with new MDL).
mysql-test/t/create.test:
Adjusted test case after change in implementation of CREATE TABLE
... SELECT. We no longer have special check in open_table() which
catches the case when we select from the table created. Instead we
rely on unique_table() call which happens after opening and
locking all tables.
mysql-test/t/disabled.def:
Disable merge.test, subject of WL#4144
mysql-test/t/flush.test:
FLUSH TABLES WITH READ LOCK can no longer happen under LOCK
TABLES. Updated test accordingly.
mysql-test/t/flush_table.test:
Under LOCK TABLES we no longer allow to do FLUSH TABLES for tables
locked for read. Updated test accordingly.
mysql-test/t/information_schema.test:
Additional test for WL#3726 "DDL locking for all metadata
objects". Check that we use high-priority metadata lock requests
when filling I_S tables.
Rearrange the results for easier merges with 6.0.
mysql-test/t/kill.test:
Added tests checking that DDL and DML statements waiting for
metadata locks can be interrupted by KILL command.
mysql-test/t/lock.test:
One no longer is allowed to do DROP VIEW under LOCK TABLES even if
this view is locked by LOCK TABLES. The problem is that in such
situation write locks on view are not mutually exclusive so
upgrading metadata lock which is required for dropping of view
will lead to deadlock.
mysql-test/t/lock_multi.test:
Adjusted test case to the changes of status in various places
caused by change in implementation FLUSH TABLES WITH READ LOCK,
which is now takes global metadata lock before flushing tables and
therefore waits on at these places.
mysql-test/t/ps_ddl.test:
We no longer invalidate prepared CREATE TABLE ... SELECT statement
if target table changes. This is OK since it is not strictly
necessary.
The first change is wrong, is caused by FLUSH TABLE
now flushing all unused tables. This is a regression that
Dmitri fixed in 6.0 in a follow up patch.
mysql-test/t/sp.test:
Under LOCK TABLES we no longer allow accessing views which were
not explicitly locked. To access view we need to obtain metadata
lock on it and doing this under LOCK TABLES may lead to deadlocks.
mysql-test/t/trigger_notembedded.test:
Adjusted test case to the changes of status in various places
caused by change in implementation FLUSH TABLES WITH READ LOCK,
which is now takes global metadata lock before flushing tables and
therefore waits on at these places.
mysql-test/t/view.test:
One no longer is allowed to do DROP VIEW under LOCK TABLES even if
this view is locked by LOCK TABLES. The problem is that in such
situation even "write locks" on view are not mutually exclusive so
upgrading metadata lock which is required for dropping of view
will lead to deadlock.
mysql-test/t/view_grant.test:
ALTER VIEW implementation was changed to open a view only after
checking that user which does alter has appropriate privileges on
it. This means that in case when user's privileges are
insufficient for this we won't check that new view definer is the
same as original one or user performing alter has SUPER privilege.
Adjusted test case accordingly.
mysql-test/t/view_multi.test:
Added test case for bug#25144 "replication / binlog with view
breaks".
sql/CMakeLists.txt:
Added mdl.cc to the list of files needed for building of server.
sql/Makefile.am:
Added files implementing new meta-data locking subsystem to the
server.
sql/event_db_repository.cc:
Allocate metadata lock requests objects (MDL_LOCK) on execution
memory root in cases when TABLE_LIST objects is also allocated
there or on stack.
sql/ha_ndbcluster.cc:
Adjusted code to work nicely with new metadata locking subsystem.
close_cached_tables() no longer has wait_for_placeholder argument.
Instead of relying on this parameter and related behavior FLUSH
TABLES WITH READ LOCK now takes global shared metadata lock.
sql/ha_ndbcluster_binlog.cc:
Adjusted code to work with new metadata locking subsystem.
close_cached_tables() no longer has wait_for_placeholder argument.
Instead of relying on this parameter and related behavior FLUSH
TABLES WITH READ LOCK now takes global shared metadata lock.
sql/handler.cc:
update_frm_version():
Directly update TABLE_SHARE::mysql_version member instead of
going through all TABLE instances for this table (old code was a
legacy from pre-table-definition-cache days).
sql/lock.cc:
Use new metadata locking subsystem. Threw away most of functions
related to name locking as now one is supposed to use metadata
locking API instead. In lock_global_read_lock() and
unlock_global_read_lock() in order to avoid problems with global
read lock sneaking in at the moment when we perform FLUSH TABLES
or ALTER TABLE under LOCK TABLES and when tables being reopened
are protected only by metadata locks we also have to take global
shared meta data lock.
sql/log_event.cc:
Adjusted code to work with new metadata locking subsystem. For
tables open by slave thread for applying RBR events allocate
memory for lock request object in the same chunk of memory as
TABLE_LIST objects for them. In order to ensure that we keep these
objects around until tables are open always close tables before
calling Relay_log_info::clear_tables_to_lock(). Use new auxiliary
Relay_log_info::slave_close_thread_tables() method to enforce
this.
sql/log_event_old.cc:
Adjusted code to work with new metadata locking subsystem. Since
for tables open by slave thread for applying RBR events memory for
lock request object is allocated in the same chunk of memory as
TABLE_LIST objects for them we have to ensure that we keep these
objects around until tables are open. To ensure this we always
close tables before calling
Relay_log_info::clear_tables_to_lock(). To enfore this we use
new auxiliary Relay_log_info::slave_close_thread_tables()
method.
sql/mdl.cc:
Implemented new metadata locking subsystem and API described in
WL3726 "DDL locking for all metadata objects".
sql/mdl.h:
Implemented new metadata locking subsystem and API described in
WL3726 "DDL locking for all metadata objects".
sql/mysql_priv.h:
- close_thread_tables()/close_tables_for_reopen() now has one more
argument which indicates that metadata locks should be released
but not removed from the context in order to be used later in
mdl_wait_for_locks() and tdc_wait_for_old_version().
- close_cached_table() routine is no longer public.
- Thread waiting in wait_while_table_is_used() can be now killed
so this function returns boolean to make caller aware of such
situation.
- We no longer have table cache as separate entity instead used
and unused TABLE instances are linked to TABLE_SHARE objects in
table definition cache.
- Now third argument of open_table() is also used for requesting
table repair or auto-discovery of table's new definition. So its
type was changed from bool to enum.
- Added tdc_open_view() function for opening view by getting its
definition from disk (and table cache in future).
- reopen_name_locked_table() no longer needs "link_in" argument as
now we have exclusive metadata locks instead of dummy TABLE
instances when this function is called.
- find_locked_table() now takes head of list of TABLE instances
instead of always scanning through THD::open_tables list. Also
added find_write_locked_table() auxiliary.
- reopen_tables(), close_cached_tables() no longer have
mark_share_as_old and wait_for_placeholder arguments. Instead of
relying on this parameters and related behavior FLUSH TABLES
WITH READ LOCK now takes global shared metadata lock.
- We no longer need drop_locked_tables() and
abort_locked_tables().
- mysql_ha_rm_tables() now always assume that LOCK_open is not
acquired by caller.
- Added notify_thread_having_shared_lock() callback invoked by
metadata locking subsystem when acquiring an exclusive lock, for
each thread that has a conflicting shared metadata lock.
- Introduced expel_table_from_cache() as replacement for
remove_table_from_cache() (the main difference is that this new
function assumes that caller follows metadata locking protocol
and never waits).
- Threw away most of functions related to name locking. One should
use new metadata locking subsystem and API instead.
sql/mysqld.cc:
Got rid of call initializing/deinitializing table cache since now
it is embedded into table definition cache. Added calls for
initializing/ deinitializing metadata locking subsystem.
sql/rpl_rli.cc:
Introduced auxiliary Relay_log_info::slave_close_thread_tables()
method which is used for enforcing that we always close tables
open for RBR before deallocating TABLE_LIST elements and MDL_LOCK
objects for them.
sql/rpl_rli.h:
Introduced auxiliary Relay_log_info::slave_close_thread_tables()
method which is used for enforcing that we always close tables
open for RBR before deallocating TABLE_LIST elements and MDL_LOCK
objects for them.
sql/set_var.cc:
close_cached_tables() no longer has wait_for_placeholder argument.
Instead of relying on this parameter and related behavior FLUSH
TABLES WITH READ LOCK now takes global shared metadata lock.
sql/sp_head.cc:
For tables added to the statement's table list by prelocking
algorithm we allocate these objects either on the same memory as
corresponding table list elements or on THD::locked_tables_root
(if we are building table list for LOCK TABLES).
sql/sql_acl.cc:
Allocate metadata lock requests objects (MDL_LOCK) on execution
memory root in cases when we use stack TABLE_LIST objects to open
tables. Got rid of redundant code by using unlock_locked_tables()
function.
sql/sql_base.cc:
Changed code to use new MDL subsystem. Got rid of separate table
cache. Now used and unused TABLE instances are linked to the
TABLE_SHAREs in table definition cache.
check_unused():
Adjusted code to the fact that we no longer have separate table
cache. Removed dead code.
table_def_free():
Free TABLE instances referenced from TABLE_SHARE objects before
destroying table definition cache.
get_table_share():
Added assert which ensures that noone will be able to access
table (and its share) without acquiring some kind of metadata
lock first.
close_handle_and_leave_table_as_lock():
Adjusted code to the fact that TABLE instances now are linked to
list in TABLE_SHARE.
list_open_tables():
Changed this function to use table definition cache instead of
table cache.
free_cache_entry():
Unlink freed TABLE elements from the list of all TABLE instances
for the table in TABLE_SHARE.
kill_delayed_thread_for_table():
Added auxiliary for killing delayed insert threads for
particular table.
close_cached_tables():
Got rid of wait_for_refresh argument as we now rely on global
shared metadata lock to prevent FLUSH WITH READ LOCK sneaking in
when we are reopening tables. Heavily reworked this function to
use new MDL code and not to rely on separate table cache entity.
close_open_tables():
We no longer have separate table cache.
close_thread_tables():
Release metadata locks after closing all tables. Added skip_mdl
argument which allows us not to remove metadata lock requests
from the context in case when we are going to use this requests
later in mdl_wait_for_locks() and tdc_wait_for_old_versions().
close_thread_table()/close_table_for_reopen():
Since we no longer have separate table cache and all TABLE
instances are linked to TABLE_SHARE objects in table definition
cache we have to link/unlink TABLE object to/from appropriate
lists in the share.
name_lock_locked_table():
Moved redundant code to find_write_locked_table() function and
adjusted code to the fact that wait_while_table_is_used() can
now return with an error if our thread is killed.
reopen_table_entry():
We no longer need "link_in" argument as with MDL we no longer
call this function with dummy TABLE object pre-allocated and
added to the THD::open_tables. Also now we add newly-open TABLE
instance to the list of share's used TABLE instances.
table_cache_insert_placeholder():
Got rid of name-locking legacy.
lock_table_name_if_not_cached():
Moved to sql_table.cc the only place where it is used. It was
also reimplemented using new MDL API.
open_table():
- Reworked this function to use new MDL subsystem.
- Changed code to deal with table definition cache directly
instead of going through separate table cache.
- Now third argument is also used for requesting table repair
or auto-discovery of table's new definition. So its type was
changed from bool to enum.
find_locked_table()/find_write_locked_table():
Accept head of list of TABLE objects as first argument and use
this list instead of always searching in THD::open_tables list.
Also added auxiliary for finding write-locked locked tables.
reopen_table():
Adjusted function to work with new MDL subsystem and to properly
manuipulate with lists of used/unused TABLE instaces in
TABLE_SHARE.
reopen_tables():
Removed mark_share_as_old parameter. Instead of relying on it
and related behavior FLUSH TABLES WITH READ LOCK now takes
global shared metadata lock. Changed code after removing
separate table cache.
drop_locked_tables()/abort_locked_tables():
Got rid of functions which are no longer needed.
unlock_locked_tables():
Moved this function from sql_parse.cc and changed it to release
memory which was used for allocating metadata lock requests for
tables open and locked by LOCK TABLES.
tdc_open_view():
Intoduced function for opening a view by getting its definition
from disk (and table cache in future).
reopen_table_entry():
Introduced function for opening table definitions while holding
exclusive metatadata lock on it.
open_unireg_entry():
Got rid of this function. Most of its functionality is relocated
to open_table() and open_table_fini() functions, and some of it
to reopen_table_entry() and tdc_open_view(). Also code
resposible for auto-repair and auto-discovery of tables was
moved to separate function.
open_table_entry_fini():
Introduced function which contains common actions which finalize
process of TABLE object creation.
auto_repair_table():
Moved code responsible for auto-repair of table being opened
here.
handle_failed_open_table_attempt()
Moved code responsible for handling failing attempt to open
table to one place (retry due to lock conflict/old version,
auto-discovery and repair).
open_tables():
- Flush open HANDLER tables if they have old version of if there
is conflicting metadata lock against them (before this moment
we had this code in open_table()).
- When we open view which should be processed via derived table
on the second execution of prepared statement or stored
routine we still should call open_table() for it in order to
obtain metadata lock on it and prepare its security context.
- In cases when we discover that some special handling of
failure to open table is needed call
handle_failed_open_table_attempt() which handles all such
scenarios.
open_ltable():
Handling of various special scenarios of failure to open a table
was moved to separate handle_failed_open_table_attempt()
function.
remove_db_from_cache():
Removed this function as it is no longer used.
notify_thread_having_shared_lock():
Added callback which is invoked by MDL subsystem when acquiring
an exclusive lock, for each thread that has a conflicting shared
metadata lock.
expel_table_from_cache():
Introduced function for removing unused TABLE instances. Unlike
remove_table_from_cache() it relies on caller following MDL
protocol and having appropriate locks when calling it and thus
does not do any waiting if table is still in use.
tdc_wait_for_old_version():
Added function which allows open_tables() to wait in cases when
we discover that we should back-off due to presence of old
version of table.
abort_and_upgrade_lock():
Use new MDL calls.
mysql_wait_completed_table():
Got rid of unused function.
open_system_tables_for_read/for_update()/performance_schema_table():
Allocate MDL_LOCK objects on execution memory root in cases when
TABLE_LIST objects for corresponding tables is allocated on
stack.
close_performance_schema_table():
Release metadata locks after closing tables.
******
Use I_P_List for free/used tables list in the table share.
sql/sql_binlog.cc:
Use Relay_log_info::slave_close_thread_tables() method to enforce
that we always close tables open for RBR before deallocating
TABLE_LIST elements and MDL_LOCK objects for them.
sql/sql_class.cc:
Added meta-data locking contexts as part of Open_tables_state
context. Also introduced THD::locked_tables_root memory root
which is to be used for allocating MDL_LOCK objects for tables in
LOCK TABLES statement (end of lifetime for such objects is UNLOCK
TABLES so we can't use statement or execution root for them).
sql/sql_class.h:
Added meta-data locking contexts as part of Open_tables_state
context. Also introduced THD::locked_tables_root memory root
which is to be used for allocating MDL_LOCK objects for tables in
LOCK TABLES statement (end of lifetime for such objects is UNLOCK
TABLES so we can't use statement or execution root for them).
Note: handler_mdl_context and locked_tables_root and
mdl_el_root will be removed by subsequent patches.
sql/sql_db.cc:
mysql_rm_db() does not really need to call remove_db_from_cache()
as it drops each table in the database using
mysql_rm_table_part2(), which performs all necessary operations on
table (definition) cache.
sql/sql_delete.cc:
Use the new metadata locking API for TRUNCATE.
sql/sql_handler.cc:
Changed HANDLER implementation to use new metadata locking
subsystem. Note that MDL_LOCK objects for HANDLER tables are
allocated in the same chunk of heap memory as TABLE_LIST object
for those tables.
sql/sql_insert.cc:
mysql_insert():
find_locked_table() now takes head of list of TABLE object as
its argument instead of always scanning through THD::open_tables
list.
handle_delayed_insert():
Allocate metadata lock request object for table open by delayed
insert thread on execution memroot. create_table_from_items():
We no longer allocate dummy TABLE objects for tables being
created if they don't exist. As consequence
reopen_name_locked_table() no longer has link_in argument.
open_table() now has one more argument which is not relevant for
temporary tables.
sql/sql_parse.cc:
- Moved unlock_locked_tables() routine to sql_base.cc and made
available it in other files. Got rid of some redundant code by
using this function.
- Replaced boolean TABLE_LIST::create member with enum
open_table_type member.
- Use special memory root for allocating MDL_LOCK objects for
tables open and locked by LOCK TABLES (these object should live
till UNLOCK TABLES so we can't allocate them on statement nor
execution memory root). Also properly set metadata lock
upgradability attribure for those tables.
- Under LOCK TABLES it is no longer allowed to flush tables which
are not write-locked as this breaks metadata locking protocol
and thus potentially might lead to deadlock.
- Added auxiliary adjust_mdl_locks_upgradability() function.
sql/sql_partition.cc:
Adjusted code to the fact that reopen_tables() no longer has
"mark_share_as_old" argument. Got rid of comments which are no
longer true.
sql/sql_plist.h:
Added I_P_List template class for parametrized intrusive doubly
linked lists and I_P_List_iterator for corresponding iterator.
Unlike for I_List<> list elements of such list can participate in
several lists. Unlike List<> such lists are doubly-linked and
intrusive.
sql/sql_plugin.cc:
Allocate metadata lock requests objects (MDL_LOCK) on execution
memory root in cases when we use stack TABLE_LIST objects to open
tables.
sql/sql_prepare.cc:
Replaced boolean TABLE_LIST::create member with enum
open_table_type member. This allows easily handle situation in
which instead of opening the table we want only to take exclusive
metadata lock on it.
sql/sql_rename.cc:
Use new metadata locking subsystem in implementation of RENAME
TABLE.
sql/sql_servers.cc:
Allocate metadata lock requests objects (MDL_LOCK) on execution
memory root in cases when we use stack TABLE_LIST objects to open
tables. Got rid of redundant code by using unlock_locked_tables()
function.
sql/sql_show.cc:
Acquire shared metadata lock when we are getting information for
I_S table directly from TABLE_SHARE without doing full-blown table
open. We use high priority lock request in this situation in
order to avoid deadlocks.
Also allocate metadata lock requests objects (MDL_LOCK) on
execution memory root in cases when TABLE_LIST objects are also
allocated there
sql/sql_table.cc:
mysql_rm_table():
Removed comment which is no longer relevant.
mysql_rm_table_part2():
Now caller of mysql_ha_rm_tables() should not own LOCK_open.
Adjusted code to use new metadata locking subsystem instead of
name-locks.
lock_table_name_if_not_cached():
Moved this function from sql_base.cc to this file and
reimplemented it using metadata locking API.
mysql_create_table():
Adjusted code to use new MDL API.
wait_while_table_is_used():
Changed function to use new MDL subsystem. Made thread waiting
in it killable (this also led to introduction of return value so
caller can distinguish successful executions from situations
when waiting was aborted).
close_cached_tables():
Thread waiting in this function is killable now. As result it
has return value for distinguishing between succes and failure.
Got rid of redundant boradcast_refresh() call.
prepare_for_repair():
Use MDL subsystem instead of name-locks.
mysql_admin_table():
mysql_ha_rm_tables() now always assumes that caller doesn't own
LOCK_open.
mysql_repair_table():
We should mark all elements of table list as requiring
upgradable metadata locks.
mysql_create_table_like():
Use new MDL subsystem instead of name-locks.
create_temporary_tables():
We don't need to obtain metadata locks when creating temporary
table.
mysql_fast_or_online_alter_table():
Thread waiting in wait_while_table_is_used() is now killable.
mysql_alter_table():
Adjusted code to work with new MDL subsystem and to the fact
that threads waiting in what_while_table_is_used() and
close_cached_table() are now killable.
sql/sql_test.cc:
We no longer have separate table cache. TABLE instances are now
associated with/linked to TABLE_SHARE objects in table definition
cache.
sql/sql_trigger.cc:
Adjusted code to work with new metadata locking subsystem. Also
reopen_tables() no longer has mark_share_as_old argument (Instead
of relying on this parameter and related behavior FLUSH TABLES
WITH READ LOCK now takes global shared metadata lock).
sql/sql_udf.cc:
Allocate metadata lock requests objects (MDL_LOCK) on execution
memory root in cases when we use stack TABLE_LIST objects to open
tables.
sql/sql_update.cc:
Adjusted code to work with new meta-data locking subsystem.
sql/sql_view.cc:
Added proper meta-data locking to implementations of
CREATE/ALTER/DROP VIEW statements. Now we obtain exclusive
meta-data lock on a view before creating/ changing/dropping it.
This ensures that all concurrent statements that use this view
will finish before our statement will proceed and therefore we
will get correct order of statements in the binary log.
Also ensure that TABLE_LIST::mdl_upgradable attribute is properly
propagated for underlying tables of view.
sql/table.cc:
Added auxiliary alloc_mdl_locks() function for allocating metadata
lock request objects for all elements of table list.
sql/table.h:
TABLE_SHARE:
Got rid of unused members. Introduced members for storing lists
of used and unused TABLE objects for this share.
TABLE:
Added members for linking TABLE objects into per-share lists of
used and unused TABLE instances. Added member for holding
pointer to metadata lock for this table.
TABLE_LIST:
Replaced boolean TABLE_LIST::create member with enum
open_table_type member. This allows easily handle situation in
which instead of opening the table we want only to take
exclusive meta-data lock on it (we need this in order to handle
ALTER VIEW and CREATE VIEW statements).
Introduced new mdl_upgradable member for marking elements of
table list for which we need to take upgradable shared metadata
lock instead of plain shared metadata lock. Added pointer for
holding pointer to MDL_LOCK for the table.
Added auxiliary alloc_mdl_locks() function for allocating metadata
lock requests objects for all elements of table list. Added
auxiliary set_all_mdl_upgradable() function for marking all
elements in table list as requiring upgradable metadata locks.
storage/myisammrg/ha_myisammrg.cc:
Allocate MDL_LOCK objects for underlying tables of MERGE table.
To be reworked once Ingo pushes his patch for WL4144.
This is the non-ndb part of the patch.
The return value of mysql_bin_log.write was ignored by most callers,
which may lead to inconsistent on master and slave if the transaction
was committed while the binlog was not correctly written. If
my_error() is call in mysql_bin_log.write, this could also lead to
assertion issue if my_ok() or my_error() is called after.
This fixed the problem by let the caller to check and handle the
return value of mysql_bin_log.write. This patch only adresses the
simple cases.
mysql-test/include/binlog_inject_error.inc:
inject binlog write error when doing a query
mysql-test/suite/binlog/t/binlog_write_error.test:
Simple test case to check if proper error is reported when injecting binlog write errors.
sql/events.cc:
check return value of mysql_bin_log.write
sql/log.cc:
check return value of mysql_bin_log.write
sql/log_event.cc:
check return value of mysql_bin_log.write
sql/log_event_old.cc:
check return value of mysql_bin_log.write
sql/mysql_priv.h:
Change write_bin_log to return int instead of void
sql/rpl_injector.cc:
check return value of writing binlog
sql/sp.cc:
check return value of writing binlog
sql/sp_head.cc:
return 1 if writing binlog failed
sql/sql_acl.cc:
check return value of writing binlog
sql/sql_base.cc:
check return value of writing binlog
sql/sql_class.h:
Change binlog_show_create_table to return int
sql/sql_db.cc:
Change write_to_binlog to return int
check return value of writing binlog
sql/sql_delete.cc:
check return value of writing binlog
sql/sql_insert.cc:
check return value of writing binlog
sql/sql_load.cc:
check return value of writing binlog
sql/sql_parse.cc:
check return value of writing binlog
sql/sql_partition.cc:
check return value of writing binlog
sql/sql_rename.cc:
check return value of writing binlog
sql/sql_repl.cc:
check return value of writing binlog
sql/sql_table.cc:
Change write_bin_log to return int, and return 1 if there was error writing binlog
sql/sql_tablespace.cc:
check return value of writing binlog
sql/sql_trigger.cc:
check return value of writing binlog
sql/sql_udf.cc:
check return value of writing binlog
sql/sql_update.cc:
check return value of writing binlog
sql/sql_view.cc:
check return value of writing binlog
Non-transactional updates that take place inside a transaction present problems
for logging because they are visible to other clients before the transaction
is committed, and they are not rolled back even if the transaction is rolled
back. It is not always possible to log correctly in statement format when both
transactional and non-transactional tables are used in the same transaction.
In the current patch, we ensure that such scenario is completely safe under the
ROW and MIXED modes.
Implemented the server infrastructure for the fix:
1. Added a function LEX_STRING *thd_query_string(THD) to return
a LEX_STRING structure instead of char *.
This is the function that must be called in innodb instead of
thd_query()
2. Did some encapsulation in THD : aggregated thd_query and
thd_query_length into a LEX_STRING and made accessor and mutator
methods for easy code updating.
3. Updated the server code to use the new methods where applicable.
Original revision is from mysql-6.0-codebase:
revno: 2630.3.1
committer: Alexander Nozdrin <alik@mysql.com>
branch nick: 6.0-rt-bug26704
timestamp: Thu 2008-05-29 21:04:06 +0400
message:
A fix for Bug#26704: Failing DROP DATABASE brings
mysql-client out of sync.
The problem was that we changed current database w/o caring
whether it was dropped successfully or not.
The fix is not to change current database if we failed to drop it.
additional backport of of bug43138 fix
mysql-test/t/myisam-system.test:
additional backport of of bug43138 fix
sql/sql_db.cc:
additional backport of of bug43138 fix
There is an inconsistency with DROP DATABASE|TABLE|EVENT IF EXISTS and
CREATE DATABASE|TABLE|EVENT IF NOT EXISTS. DROP IF EXISTS statements are
binlogged even if either the DB, TABLE or EVENT does not exist. In
contrast, Only the CREATE EVENT IF NOT EXISTS is binlogged when the EVENT
exists.
This patch fixes the following cases for all the replication formats:
CREATE DATABASE IF NOT EXISTS.
CREATE TABLE IF NOT EXISTS,
CREATE TABLE IF NOT EXISTS ... LIKE,
CREAET TABLE IF NOT EXISTS ... SELECT.
sql/sql_insert.cc:
Part of the code was moved from the create_table_from_items to select_create::prepare.
When replication is row based, CREATE TABLE IF NOT EXISTS.. SELECT is binlogged if the table exists.
The problem: described in the bug report.
The fix:
--increase buffers where it's necessary
(buffers which are used in stxnmov)
--decrease buffer lengths which are used
client/mysql.cc:
--increase buffers where it's necessary
(buffers which are used in stxnmov)
--decrease buffer lengths which are used
as argument for strxnmov function
sql/ha_ndbcluster.cc:
--increase buffers where it's necessary
(buffers which are used in stxnmov)
--decrease buffer lengths which are used
as argument for strxnmov function
sql/ha_ndbcluster_binlog.cc:
--increase buffers where it's necessary
(buffers which are used in stxnmov)
--decrease buffer lengths which are used
as argument for strxnmov function
sql/handler.cc:
--increase buffers where it's necessary
(buffers which are used in stxnmov)
--decrease buffer lengths which are used
as argument for strxnmov function
sql/log.cc:
--increase buffers where it's necessary
(buffers which are used in stxnmov)
--decrease buffer lengths which are used
as argument for strxnmov function
sql/mysqld.cc:
removed unnecessary line
sql/parse_file.cc:
--increase buffers where it's necessary
(buffers which are used in stxnmov)
--decrease buffer lengths which are used
as argument for strxnmov function
sql/sql_acl.cc:
--increase buffers where it's necessary
(buffers which are used in stxnmov)
--decrease buffer lengths which are used
as argument for strxnmov function
sql/sql_base.cc:
--increase buffers where it's necessary
(buffers which are used in stxnmov)
--decrease buffer lengths which are used
as argument for strxnmov function
sql/sql_db.cc:
--increase buffers where it's necessary
(buffers which are used in stxnmov)
--decrease buffer lengths which are used
as argument for strxnmov function
sql/sql_delete.cc:
--increase buffers where it's necessary
(buffers which are used in stxnmov)
--decrease buffer lengths which are used
as argument for strxnmov function
sql/sql_partition.cc:
--increase buffers where it's necessary
(buffers which are used in stxnmov)
--decrease buffer lengths which are used
as argument for strxnmov function
sql/sql_rename.cc:
--increase buffers where it's necessary
(buffers which are used in stxnmov)
--decrease buffer lengths which are used
as argument for strxnmov function
sql/sql_show.cc:
--increase buffers where it's necessary
(buffers which are used in stxnmov)
--decrease buffer lengths which are used
as argument for strxnmov function
sql/sql_table.cc:
--increase buffers where it's necessary
(buffers which are used in stxnmov)
--decrease buffer lengths which are used
as argument for strxnmov function
sql/sql_view.cc:
--increase buffers where it's necessary
(buffers which are used in stxnmov)
--decrease buffer lengths which are used
as argument for strxnmov function
Make the caller of Query_log_event, Execute_load_log_event
constructors and THD::binlog_query to provide the error code
instead of having the constructors to figure out the error code.
sql/log_event.cc:
Changed constructors of Query_log_event and Execute_load_log_event to accept the error code argument instead of figuring it out by itself
sql/log_event.h:
Changed constructors of Query_log_event and Execute_load_log_event to accept the error code argument
When the thread executing a DDL was killed after finished its
execution but before writing the binlog event, the error code in
the binlog event could be set wrongly to ER_SERVER_SHUTDOWN or
ER_QUERY_INTERRUPTED.
This patch fixed the problem by ignoring the kill status when
constructing the event for DDL statements.
This patch also included the following changes in order to
provide the test case.
1) modified mysqltest to support variable for connection command
2) modified mysql-test-run.pl, add new variable MYSQL_SLAVE to
run mysql client against the slave mysqld.
- Remove bothersome warning messages. This change focuses on the warnings
that are covered by the ignore file: support-files/compiler_warnings.supp.
- Strings are guaranteed to be max uint in length
sql_view.cc: required_view_parameters has been decreased by 2
(not by 1) because its value was incorrect: 16 instead of 15
(minor performance issue).
sql/sql_view.cc:
sql_view.cc: required_view_parameters has been decreased by 2
(not by 1) because its value was incorrect: 16 instead of 15
(minor performance issue).
missing after downgrade
Obsolete arc/ directory and view .frm file backup support
has been removed by the patch for bug 17823. However, that
bugfix caused a problem with "live downgrades" of the
server: if we rename some view 4 times under 5.1.29/5.0.72
and then try to rename it under 5.1.28/5.0.70 on the same
database, the server fails with a error:
query 'RENAME TABLE ... TO ...' failed: 6: Error on
delete of '....frm-0001' (Errcode: 2)
Also .frm file of that view may be lost (renamed to .frm~).
The server failed because it tried to rename latest 3
backup .frm files renaming the view: the server used an
integer value of the "revision" field of .frm file to
extract those file names. After the fix for bug 17823 those
files were not created/maintained any more, however the
"revision" field was incremented as usual. So, the server
failed renaming non existent files.
This fix solves the problem by removing the support for
"revision" .frm file field:
1. New server silently ignores existent "revision" fields
in old .frm files and never write it down;
2. Old server assumes, that missing "revision" field in new
.frm files means default value of 0.
3. Accordingly to the fix for bug 17823 the new server
drops arc/ directory on alter/rename view, so after
"live downgrade" old server begins maintenance of the
arc/ directory from scratch without conflicts with .frm
files.
sql/parse_file.cc:
Bug #40021: Renaming view fails, archived .frm for view is
missing after downgrade
1. static write_parameter(): the old_version parameter
and the section for FILE_OPTIONS_REV have been re moved.
2. write_parameter(): the max_versions parameter has been
removed;
3. sql_create_definition_file(): removal of dead code;
4. rename_in_schema_file(): revision and num_view_backups
parameters and dead code have been removed;
5. File_parser::parse(): FILE_OPTIONS_REV section has been
removed.
sql/parse_file.h:
Bug #40021: Renaming view fails, archived .frm for view is
missing after downgrade
1. The FILE_OPTIONS_REV constant has been removed.
2. sql_create_definition_file and rename_in_schema_file
functions: obsolete versions, revision and
num_view_backups parameters have been removed.
sql/sql_db.cc:
Bug #40021: Renaming view fails, archived .frm for view is
missing after downgrade
Commentary update.
sql/sql_trigger.cc:
Bug #40021: Renaming view fails, archived .frm for view is
missing after downgrade
sql_create_definition_file() calls have been updates to
new parameter lists.
sql/sql_view.cc:
Bug #40021: Renaming view fails, archived .frm for view is
missing after downgrade
1. The mysql_create_view function code is used for both
CREATE VIEW and ALTER queries, but query cache is
necessary for ALTER command only. Check for a non first
view revision has been replaced with a direct check for
ALTER query.
2. The num_view_backups global constant has been removed.
3. view_parameters: the "revision" .frm field support has
been removed.
4. sql_create_definition_file and rename_in_schema_file
function calls have been updates to new parameter lists.
sql/table.h:
Bug #40021: Renaming view fails, archived .frm for view is
missing after downgrade
TABLE_LIST: the revision field has been removed.
Server created "arc" directories inside database directories and
maintained there useless copies of .frm files.
Creation and renaming procedures of those copies as well as
creation of "arc" directories has been discontinued.
Removal procedure has been kept untouched to be able to
cleanup existent database directories by the DROP DATABASE
query. Also view renaming procedure has been updated to remove
these directories.
sql/parse_file.cc:
Fixed bug #17823: 'arc' directories inside database directories.
View/table creation and renaming procedures maintained
backup copies of .frm files. Those copies are unused yet,
so this feature was incomplete and unnecessary.
1. Unwanted code has been hidden by FRM_ARCHIVE ifdefs
(the FRM_ARCHIVE macro is not defined).
2. Renaming procedure has been modified to remove obsolete
"arc" directories.
sql/parse_file.h:
Fixed bug #17823: 'arc' directories inside database directories.
The "thd" parameter has been added to the rename_in_schema_file()
function.
sql/sql_db.cc:
Fixed bug #17823: 'arc' directories inside database directories.
Scope of the mysql_rm_arc_files() function has been changed to
global for use from the parse_file.cc file.
sql/sql_view.cc:
Fixed bug #17823: 'arc' directories inside database directories.
Added the "thd" argument to rename_in_schema_file() calls.
tables open
When executing a DROP DATABASE statement in ROW mode and having temporary
tables open at the same time, the existance of temporary tables prevent
the server from switching back to row mode after temporarily switching to
statement mode to handle the logging of the statement.
Fixed the problem by removing the code to switch to statement mode and added
code to temporarily disable the binary log while dropping the objects in the
database.
mysql-test/extra/binlog_tests/database.test:
Added test to ensure that DROP DATABASE does not affect the replication mode.
sql/sql_db.cc:
Removed code that clears the current_stmt_binlog_row_based flag.
Added code to disable the binary log while dropping the objects
in a database.
When executing a DROP DATABASE statement in ROW mode and having temporary
tables open at the same time, the existance of temporary tables prevent
the server from switching back to row mode after temporarily switching to
statement mode to handle the logging of the statement.
Fixed the problem by removing the code to switch to statement mode and added
code to temporarily disable the binary log while dropping the objects in the
database.
mysql-test/extra/binlog_tests/database.test:
Added test to ensure that DROP DATABASE does not affect the replication mode.
mysql-test/suite/binlog/r/binlog_database.result:
Result file change.
sql/sql_db.cc:
Removed code that clears the current_stmt_binlog_row_based flag.
Added code to disable the binary log while dropping the objects
in a database.
The event scheduler was not designed to work in embedded mode. This
patch disables and excludes the event scheduler when the server is
compiled for embedded build.
libmysqld/Makefile.am:
Reduce the amount of event code in an embedded build.
mysql-test/t/events_trans.test:
Disable test if run in embedded mode.
sql/Makefile.am:
Introduce definition HAVE_EVENT_SCHEDULER and one new source file.
sql/event_data_objects.cc:
Refactor Event_parse_data to new file.
sql/event_data_objects.h:
Refactor Event_parse_data to new file.
Move global definitions to new file.
sql/event_queue.cc:
Move all parsed items to Event_parse_data for easier modularization.
sql/events.cc:
Move all parsed items to Event_parse_data for easier modularization.
sql/mysqld.cc:
Disable the event schedular subsystem if the server is compiled in
embedded mode.
sql/set_var.cc:
Disable the event schedular subsystem if the server is compiled in
embedded mode.
sql/set_var.h:
Disable the event schedular subsystem if the server is compiled in
embedded mode.
sql/sql_db.cc:
Disable the event schedular subsystem if the server is compiled in
embedded mode.
sql/sql_parse.cc:
Disable the event schedular subsystem if the server is compiled in
embedded mode.
sql/sql_show.cc:
Disable the event schedular subsystem if the server is compiled in
embedded mode.
sql/sql_test.cc:
Disable the event schedular subsystem if the server is compiled in
embedded mode.
sql/sql_yacc.yy:
Only include event-code needed for parsing to reduce impact on embedded
build.
Move all constants to Event_parse_data class.
mysql-test/r/events_embedded.result:
Add test case to make sure the 'event_scheduler' can't be activated
in embedded mode.
mysql-test/r/is_embedded.require:
Add test case to make sure the 'event_scheduler' can't be activated
in embedded mode.
mysql-test/t/events_embedded.test:
Add test case to make sure the 'event_scheduler' can't be activated
in embedded mode.
sql/event_parse_data.cc:
New file. Extracted Event_parse data into a new file.
sql/event_parse_data.h:
New file. Extracted Event_parse data into a new file.
into mysql.com:/misc/mysql/mysql-5.1-opt
CMakeLists.txt:
Auto merged
configure.in:
Auto merged
include/config-win.h:
Auto merged
include/my_global.h:
Auto merged
sql/sql_acl.cc:
Auto merged
sql/sql_db.cc:
Auto merged
storage/innobase/handler/ha_innodb.cc:
Auto merged
into magare.gmz:/home/kgeorge/mysql/work/B26461-5.1-opt
CMakeLists.txt:
Auto merged
include/config-win.h:
Auto merged
include/my_global.h:
Auto merged
sql/procedure.h:
Auto merged
sql/sql_acl.cc:
Auto merged
sql/sql_acl.h:
Auto merged
sql/sql_analyse.cc:
Auto merged
sql/sql_analyse.h:
Auto merged
sql/sql_db.cc:
Auto merged
sql/sql_delete.cc:
Auto merged
sql/sql_load.cc:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_update.cc:
Auto merged
sql/handler.h:
merged bug 26461 to 5.1-opt
sql/mysql_priv.h:
merged bug 26461 to 5.1-opt
sql/sql_base.cc:
merged bug 26461 to 5.1-opt
sql/sql_prepare.cc:
merged bug 26461 to 5.1-opt
The bool data type was redefined to BOOL (4 bytes on windows).
Removed the #define and fixed some of the warnings that were uncovered
by this.
Note that the fix also disables 2 warnings :
4800 : 'type' : forcing value to bool 'true' or 'false' (performance warning)
4805: 'operation' : unsafe mix of type 'type' and type 'type' in operation
These warnings will be handled in a separate bug, as they are performance related or bogus.
Fixed to int the return type of functions that return more than
2 distinct values.
CMakeLists.txt:
Bug #26461: disable the C4800 and C4805 warnings temporarily
include/config-win.h:
Bug #26461:
- no need for this define for Windows.
- windows C++ compilers have a bool type
include/my_global.h:
Bug #26461: removed bool_defined (no longer needed)
sql/handler.h:
Bug #26461: bool functions must return boolean values
sql/mysql_priv.h:
Bug #26461: fixed return type of functions that return more than
2 distinct values.
sql/procedure.h:
Bug #26461: fixed return type of functions that return more than
2 distinct values.
sql/sql_acl.cc:
Bug #26461: fixed return type of functions that return more than
2 distinct values.
sql/sql_acl.h:
Bug #26461: fixed return type of functions that return more than
2 distinct values.
sql/sql_analyse.cc:
Bug #26461: fixed return type of functions that return more than
2 distinct values.
sql/sql_analyse.h:
Bug #26461: fixed return type of functions that return more than
2 distinct values.
sql/sql_base.cc:
Bug #26461: fixed return type of functions that return more than
2 distinct values.
sql/sql_db.cc:
Bug #26461: fixed return type of functions that return more than
2 distinct values.
sql/sql_delete.cc:
Bug #26461: fixed return type of functions that return more than
2 distinct values.
sql/sql_load.cc:
Bug #26461: fixed return type of functions that return more than
2 distinct values.
sql/sql_parse.cc:
Bug #26461: fixed return type of functions that return more than
2 distinct values.
sql/sql_prepare.cc:
Bug #26461: fixed return type of functions that return more than
2 distinct values.
sql/sql_update.cc:
Bug #26461: fixed return type of functions that return more than
2 distinct values.
table with backticks
(Thanks to Lu Jingdong, though I did not take his patch directly, as
it contained a significant flaw.)
It wasn't a backtick/parsing problem. We merely didn't anticipate
and allocate enough space to handle the optional "#mysql50#" table-
name prefix.
Now, allocate that extra space in case we need it when we look up
a legacy table to get its file's name.
mysql-test/r/drop.result:
Verify that databases with old-style files can be removed.
mysql-test/t/drop.test:
Verify that databases with old-style files can be removed.
sql/sql_db.cc:
Extend the size of the memory that holds the table's name, so that
the legacy "mysql50" prefix fits.
into kaamos.(none):/data/src/opt/mysql-5.1-opt
client/mysql.cc:
Auto merged
client/mysqltest.c:
Auto merged
sql/log.cc:
Auto merged
sql/repl_failsafe.cc:
Auto merged
sql/set_var.cc:
Auto merged
sql/sql_base.cc:
Auto merged
sql/sql_class.cc:
Auto merged
sql/sql_class.h:
Auto merged
sql/sql_db.cc:
Auto merged
sql/sql_select.cc:
Auto merged
sql/sql_show.cc:
Auto merged
into mysql.com:/misc/mysql/31752_/51-31752_
client/mysql.cc:
Auto merged
sql/log.cc:
Auto merged
sql/set_var.cc:
Auto merged
sql/sql_db.cc:
Auto merged
sql/sql_show.cc:
Auto merged
sql/unireg.cc:
Auto merged
into station.:/mnt/raid/alik/MySQL/devel/5.1-rt
client/mysqltest.c:
Auto merged
include/mysql_com.h:
Auto merged
libmysqld/emb_qcache.cc:
Auto merged
libmysqld/emb_qcache.h:
Auto merged
libmysqld/lib_sql.cc:
Auto merged
mysql-test/lib/mtr_report.pl:
Auto merged
sql/ha_partition.cc:
Auto merged
sql/item_func.cc:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/mysqld.cc:
Auto merged
sql/opt_range.cc:
Auto merged
sql/set_var.cc:
Auto merged
sql/set_var.h:
Auto merged
sql/slave.cc:
Auto merged
sql/sql_class.cc:
Auto merged
sql/sql_class.h:
Auto merged
sql/sql_db.cc:
Auto merged
sql/sql_insert.cc:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_partition.cc:
Auto merged
sql/sql_select.cc:
Auto merged
sql/sql_table.cc:
Auto merged
sql/table.cc:
Auto merged
storage/myisam/ha_myisam.cc:
Auto merged
sql/protocol.cc:
SCCS merged
into mysql.com:/home/gluh/MySQL/Merge/5.1-opt
BitKeeper/etc/ignore:
auto-union
client/mysql.cc:
Auto merged
client/mysqltest.c:
Auto merged
include/mysql_com.h:
Auto merged
libmysql/CMakeLists.txt:
Auto merged
libmysqld/lib_sql.cc:
Auto merged
mysql-test/r/archive.result:
Auto merged
mysql-test/r/create.result:
Auto merged
mysql-test/r/delayed.result:
Auto merged
mysql-test/r/func_misc.result:
Auto merged
mysql-test/r/innodb.result:
Auto merged
mysql-test/r/innodb_mysql.result:
Auto merged
mysql-test/r/merge.result:
Auto merged
mysql-test/r/ps.result:
Auto merged
mysql-test/r/type_date.result:
Auto merged
mysql-test/suite/rpl/r/rpl_innodb_bug28430.result:
Auto merged
mysql-test/t/create.test:
Auto merged
mysql-test/t/func_misc.test:
Auto merged
mysql-test/t/information_schema.test:
Auto merged
mysql-test/t/merge.test:
Auto merged
mysql-test/t/subselect.test:
Auto merged
mysql-test/t/type_date.test:
Auto merged
mysql-test/t/type_datetime.test:
Auto merged
mysql-test/t/variables.test:
Auto merged
mysys/queues.c:
Auto merged
sql/events.cc:
Auto merged
sql/field.cc:
Auto merged
sql/field.h:
Auto merged
sql/ha_partition.cc:
Auto merged
sql/handler.cc:
Auto merged
sql/item.cc:
Auto merged
sql/item_cmpfunc.cc:
Auto merged
sql/item_func.h:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/mysqld.cc:
Auto merged
sql/opt_range.cc:
Auto merged
sql/protocol.cc:
Auto merged
sql/set_var.cc:
Auto merged
sql/set_var.h:
Auto merged
sql/slave.cc:
Auto merged
sql/sql_class.cc:
Auto merged
sql/sql_class.h:
Auto merged
sql/sql_db.cc:
Auto merged
sql/sql_insert.cc:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_partition.cc:
Auto merged
sql/sql_plugin.cc:
Auto merged
sql/sql_select.cc:
Auto merged
sql/sql_string.cc:
Auto merged
sql/sql_table.cc:
Auto merged
sql/sql_yacc.yy:
Auto merged
sql/table.cc:
Auto merged
sql/table.h:
Auto merged
storage/myisam/ha_myisam.cc:
Auto merged
storage/myisam/mi_check.c:
Auto merged
storage/myisam/mi_open.c:
Auto merged
tests/mysql_client_test.c:
Auto merged
mysql-test/lib/mtr_report.pl:
manual merge
mysql-test/r/myisam.result:
manual merge
mysql-test/r/partition.result:
manual merge
mysql-test/r/user_var.result:
manual merge
mysql-test/t/myisam.test:
manual merge
mysql-test/t/partition.test:
manual merge
mysql-test/t/user_var.test:
manual merge
sql/item.h:
manual merge
sql/item_func.cc:
manual merge
storage/myisammrg/ha_myisammrg.cc:
manual merge
cause ROLLBACK of statement", part 1. Review fixes.
Do not send OK/EOF packets to the client until we reached the end of
the current statement.
This is a consolidation, to keep the functionality that is shared by all
SQL statements in one place in the server.
Currently this functionality includes:
- close_thread_tables()
- log_slow_statement().
After this patch and the subsequent patch for Bug#12713, it shall also include:
- ha_autocommit_or_rollback()
- net_end_statement()
- query_cache_end_of_result().
In future it may also include:
- mysql_reset_thd_for_next_command().
include/mysql_com.h:
Rename now unused members of NET: no_send_ok, no_send_error, report_error.
These were server-specific variables related to the client/server
protocol. They have been made obsolete by this patch.
Previously the same members of NET were used to store the error message
both on the client and on the server.
The error message was stored in net.last_error (client: mysql->net.last_error,
server: thd->net.last_error).
The error code was stored in net.last_errno (client: mysql->net.last_errno,
server: thd->net.last_errno).
The server error code and message are now stored elsewhere
(in the Diagnostics_area), thus NET members are no longer used by the
server.
Rename last_error to client_last_error, last_errno to client_last_errno
to avoid potential bugs introduced by merges.
include/mysql_h.ic:
Update the ABI file to reflect a rename.
Renames do not break the binary compatibility.
libmysql/libmysql.c:
Rename last_error to client_last_error, last_errno to client_last_errno.
This is necessary to ensure no unnoticed bugs introduced by merged
changesets.
Remove net.report_error, net.no_send_ok, net.no_send_error.
libmysql/manager.c:
Rename net.last_errno to net.client_last_errno.
libmysqld/lib_sql.cc:
Rename net.last_errno to net.client_last_errno.
Update the embedded implementation of the client-server protocol to
reflect the refactoring of protocol.cc.
libmysqld/libmysqld.c:
Rename net.last_errno to net.client_last_errno.
mysql-test/r/events.result:
Update to reflect the change in mysql_rm_db(). Now we drop stored
routines and events for a given database name only if there
is a directory for this database name. ha_drop_database() and
query_cache_invalidate() are called likewise.
Previously we would attempt to drop routines/events even if database
directory was not found (it worked, since routines and events are stored
in tables). This fixes Bug 29958 "Weird message on DROP DATABASE if mysql.proc
does not exist".
The change was done because the previous code used to call send_ok()
twice, which led to an assertion failure when asserts against it were
added by this patch.
mysql-test/r/grant.result:
Fix the patch for Bug 16470, now FLUSH PRIVILEGES produces an error
if mysql.procs_priv is missing.
This fixes the assert that send_ok() must not called after send_error()
(the original patch for Bug 16470 was prone to this).
mysql-test/suite/rpl/r/rpl_row_tabledefs_2myisam.result:
Produce a more detailed error message.
mysql-test/suite/rpl/r/rpl_row_tabledefs_3innodb.result:
Produce a more detailed error message.
mysql-test/t/grant.test:
Update the test, now FLUSH PRIVILEGES returns an error if mysql.procs_priv
is missing.
server-tools/instance-manager/mysql_connection.cc:
Rename net.last_errno to net.client_last_errno.
sql/ha_ndbcluster_binlog.cc:
Add asserts.
Use getters to access statement status information.
Add a comment why run_query() is broken. Reset the diagnostics area
in the end of run_query() to fulfill the invariant that the diagnostics_area
is never assigned twice per statement (see the comment in the code
when this can happen). We still do not clear thd->is_fatal_error and
thd->is_slave_error, which may lead to bugs, I consider the whole affair
as something to be dealt with separately.
sql/ha_partition.cc:
fatal_error() doesn't set an error by itself. Perhaps we should
remove this method altogether and instead add a flag to my_error
to set thd->is_fatal_error property.
Meanwhile, this change is a part of inspection made to the entire source
code with the goal to ensure that fatal_error()
is always accompanied by my_error().
sql/item_func.cc:
There is no net.last_error anymore. Remove the obsolete assignment.
sql/log_event.cc:
Use getters to access statement error status information.
sql/log_event_old.cc:
Use getters to access statement error status information.
sql/mysqld.cc:
Previously, if a continue handler for an error was found, my_message_sql()
would not set an error in THD. Since the current statement
must be aborted in any case, find_handler() had a hack to assign
thd->net.report_error to 1.
Remove this hack. Set an error in my_message_sql() even if the continue
handler is found. The error will be cleared anyway when the handler
is executed. This is one action among many in this patch to ensure the
invariant that whenever thd->is_error() is TRUE, we have a message in
thd->main_da.message().
sql/net_serv.cc:
Use a full-blown my_error() in net_serv.cc to report an error,
instead of just setting net->last_errno. This ensures the invariant that
whenever thd->is_error() returns TRUE, we have a message in
thd->main_da.message().
Remove initialization of removed NET members.
sql/opt_range.cc:
Use my_error() instead of just raising thd->net.report_error.
This ensures the invariant that whenever thd->is_error() returns TRUE,
there is a message in thd->main_da.message().
sql/opt_sum.cc:
Move invocation of fatal_error() right next to the place where
we set the error message. That makes it easier to track that whenever
fatal_error() is called, there is a message in THD.
sql/protocol.cc:
Rename send_ok() and send_eof() to net_send_ok() and net_send_eof()
respectively. These functions write directly to the network and are not
for use anywhere outside the client/server protocol code.
Remove the code that was responsible for cases when either there is
no error code, or no error message, or both.
Instead the calling code ensures that they are always present. Asserts
are added to enforce the invariant.
Instead of a direct access to thd->server_status and thd->total_warn_count
use function parameters, since these from now on don't always come directly
from THD.
Introduce net_end_statement(), the single-entry-point replacement API for
send_ok(), send_eof() and net_send_error().
Implement Protocol::end_partial_result_set to use in select_send::abort()
when there is a continue handler.
sql/protocol.h:
Update declarations.
sql/repl_failsafe.cc:
Use getters to access statement status information in THD.
Rename net.last_error to net.client_last_error.
sql/rpl_record.cc:
Set an error message in prepare_record() if there is no default
value for the field -- later we do print this message to the client.
sql/rpl_rli.cc:
Use getters to access statement status information in THD.
sql/slave.cc:
In create_table_from_dump() (a common function that is used in
LOAD MASTER TABLE SQL statement and COM_LOAD_MASTER_DATA), instead of hacks
with no_send_ok, clear the diagnostics area when mysql_rm_table() succeeded.
Update has_temporary_error() to work correctly when no error is set.
This is the case when Incident_log_event is executed: it always returns
an error but does not set an error message.
Use getters to access error status information.
sql/sp_head.cc:
Instead of hacks with no_send_error, work through the diagnostics area
interface to suppress sending of OK/ERROR packets to the client.
Move query_cache_end_of_result before log_slow_statement(), similarly
to how it's done in dispatch_command().
sql/sp_rcontext.cc:
Remove hacks with assignment of thd->net.report_error, they are not
necessary any more (see the changes in mysqld.cc).
sql/sql_acl.cc:
Use getters to access error status information in THD.
sql/sql_base.cc:
Access thd->main_da.sql_errno() only if there is an error. This fixes
a bug when auto-discovery, that was effectively disabled under pre-locking.
sql/sql_binlog.cc:
Remove hacks with no_send_ok/no_send_error, they are not necessary
anymore: the caller is responsible for network communication.
sql/sql_cache.cc:
Disable sending of OK/ERROR/EOF packet in the end of dispatch_command
if the response has been served from the query cache. This raises the
question whether we should store EOF packet in the query cache at all,
or generate it anew for each statement (we should generate it anew), but
this is to be addressed separately.
sql/sql_class.cc:
Implement class Diagnostics_area. Please see comments in sql_class.h
for details.
Fix a subtle coding mistake in select_send::send_data: when on slave,
an error in Item::send() was ignored.
The problem became visible due to asserts that the diagnostics area is
never double assigned.
Remove initialization of removed NET members.
In select_send::abort() do not call select_send::send_eof(). This is
not inheritance-safe. Even if a stored procedure continue handler is
found, the current statement is aborted, not succeeded.
Instead introduce a Protocol API to send the required response,
Protocol::end_partial_result_set().
This simplifies implementation of select_send::send_eof(). No need
to add more asserts that there is no error, there is an assert inside
Diagnostics_area::set_ok_status() already.
Leave no trace of no_send_* in the code.
sql/sql_class.h:
Declare class Diagnostics_area.
Remove the hack with no_send_ok from
Substatement_state.
Provide inline implementations of send_ok/send_eof.
Add commetns.
sql/sql_connect.cc:
Remove hacks with no_send_error.
Since now an error in THD is always set if net->error, it's not necessary
to check both net->error and thd->is_error() in the do_command loop.
Use thd->main_da.message() instead of net->last_errno.
Remove the hack with is_slave_error in sys_init_connect. Since now we do not
reset the diagnostics area in net_send_error (it's reset at the beginning
of the next statement), we can access it safely even after
execute_init_command.
sql/sql_db.cc:
Update the code to satisfy the invariant that the diagnostics area is never
assigned twice.
Incidentally, this fixes Bug 29958 "Weird message on DROP DATABASE if
mysql.proc does not exist".
sql/sql_delete.cc:
Change multi-delete to abort in abort(), as per select_send protocol.
Fixes the merge error with the test for Bug 29136
sql/sql_derived.cc:
Use getters to access error information.
sql/sql_insert.cc:
Use getters to access error information.
sql-common/client.c:
Rename last_error to client_last_error, last_errno to client_last_errno.
sql/sql_parse.cc:
Remove hacks with no_send_error. Deploy net_end_statement().
The story of COM_SHUTDOWN is interesting. Long story short, the server
would become on its death's door, and only no_send_ok/no_send_error assigned
by send_ok()/net_send_error() would hide its babbling from the client.
First of all, COM_QUIT does not require a response. So, the comment saying
"Let's send a response to possible COM_QUIT" is not only groundless
(even mysqladmin shutdown/mysql_shutdown() doesn't send COM_QUIT after
COM_SHUTDOWN), it's plainly incorrect.
Secondly, besides this additional 'OK' packet to respond to a hypothetical
COM_QUIT, there was the following code in dispatch_command():
if (thd->killed)
thd->send_kill_message();
if (thd->is_error()
net_send_error(thd);
This worked out really funny for the thread through which COM_SHUTDOWN
was delivered: we would get COM_SHUTDOWN, say okay, say okay again,
kill everybody, get the kill signal ourselves, and then attempt to say
"Server shutdown in progress" to the client that is very likely long gone.
This all became visible when asserts were added that the Diagnostics_area
is not assigned twice.
Move query_cache_end_of_result() to the end of dispatch_command(), since
net_send_eof() has been moved there. This is safe, query_cache_end_of_result()
is a no-op if there is no started query in the cache.
Consistently use select_send interface to call abort() or send_eof()
depending on the operation result.
Remove thd->fatal_error() from reset_master(), it was a no-op.
in hacks with no_send_error woudl save us
from complete breakage of the client/server protocol.
Consistently use select_send::abort() whenever there is an error,
and select_send::send_eof() in case of success.
The issue became visible due to added asserts.
sql/sql_partition.cc:
Always set an error in THD whenever there is a call to fatal_error().
sql/sql_prepare.cc:
Deploy class Diagnostics_area.
Remove the unnecessary juggling with the protocol in
Select_fetch_protocol_binary::send_eof(). EOF packet format is
protocol-independent.
sql/sql_select.cc:
Call fatal_error() directly in opt_sum_query.
Call my_error() whenever we call thd->fatal_error().
sql/sql_servers.cc:
Use getters to access error information in THD.
sql/sql_show.cc:
Use getters to access error information in THD.
Add comments.
Call my_error() whenever we call fatal_error().
sql/sql_table.cc:
Replace hacks with no_send_ok with the interface of the diagnostics area.
Clear the error if ENOENT error in ha_delete_table().
sql/sql_update.cc:
Introduce multi_update::abort(), which is the proper way to abort a
multi-update. This fixes the merge conflict between this patch and
the patch for Bug 29136.
sql/table.cc:
Use a getter to access error information in THD.
sql/tztime.cc:
Use a getter to access error information in THD.
disable decoding of table name if the table is internal temporary table
mysql-test/r/drop.result:
test result
mysql-test/t/drop.test:
test case
sql/sql_db.cc:
check is the name is internal tmp table name
sql/sql_table.cc:
disable decoding of table name if the table is internal temporary table
sql/table.h:
added flag which is true when table name is the name of internal temporary table
