Commit graph

501 commits

Author SHA1 Message Date
Sergei Golubchik
a73972bfea don't decide on extended keys by DB_TYPE_INNODB, use hton->flags 2013-08-26 21:13:17 +04:00
Sergei Golubchik
005c7e5421 mysql-5.5.32 merge 2013-07-16 19:09:54 +02:00
Sergei Golubchik
b381cf843c mysql-5.5.31 merge 2013-05-07 13:05:09 +02:00
Annamalai Gurusami
2c551d0e9c Bug #16722314 FOREIGN KEY ID MODIFIED DURING EXPORT
Bug #16754901 PARS_INFO_FREE NOT CALLED IN DICT_CREATE_ADD_FOREIGN_TO_DICTIONARY

Merging the fix from mysql-5.5 to mysql-5.5.32-release.
2013-05-06 20:31:26 +05:30
Annamalai Gurusami
1b892c7759 Merge from mysql-5.1 to mysql-5.5 2013-04-24 08:42:59 +02:00
Vladislav Vaintroub
4d78392be5 MDEV-4398 -
Change default for innodb_use_fallocate to FALSE, due to bugs in older Linux kernels (posix_fallocate() does not always guarantee that file size is like one specified)
2013-04-19 12:08:55 +02:00
Vladislav Vaintroub
ed949df15a MDEV-4338 - Support FusionIO/directFS atomic writes 2013-04-06 00:36:10 +02:00
Vasil Dimov
57059380b5 Fix Bug#16400412 UNNECESSARY DICT_UPDATE_STATISTICS DURING CONCURRENT
UPDATES

After checking that the table has changed too much in
row_update_statistics_if_needed() and calling dict_update_statistics(),
also check if the same condition holds after acquiring the table stats
latch. This is to avoid multiple threads concurrently entering and
executing the stats update code.

Approved by:	Marko (rb:2186)
2013-03-18 17:20:30 +02:00
Sergei Golubchik
8161c6772d merge with mysql-5.5.30 minus few incorrect or not applicable changesets 2013-02-28 18:42:49 +01:00
unknown
e1e43631f8 Bug #16305265 HANG IN RENAME TABLE
This is a deadlock that will also be fixed in the server by
Bug #11844915 - HANG IN THDVAR MUTEX ACQUISITION.
So this is a simple alternate method of fixing the same problem,
but from within InnoDB.

The simple change is to make rename table start a transaction
before locking dict_sys->mutex since thd_supports_xa() can call
THDVAR which can lock a mutex, LOCK_global_system_variables, that
is used in the server by many other activities.  At least one of
those, sys_var::update(), can call back into InnoDB and try to
lock dict_sys->mutex while holding LOCK_global_system_variables.

The other bug fix for 11844915 eliminates the use of
LOCK_global_system_variables for calls to THDVAR.

Approved by marko in http://rb.no.oracle.com/rb/r/2000/
2013-02-27 12:44:58 -06:00
Annamalai Gurusami
84ef847056 Merge from mysql-5.1 to mysql-5.5 2013-02-14 16:35:40 +05:30
Annamalai Gurusami
b2e8e0de4f Merge from mysql-5.1 to mysql-5.5. 2013-02-12 15:35:56 +05:30
Annamalai Gurusami
8aecb30cdd Bug #11753153 INNODB GENERATES SYMBOLS THAT ARE TOO LONG, INVALID DDL
FROM SHOW CREATE

Problem: The length of the internally generated foreign key name 
is not checked. 

Solution: The length of the internally generated foreign key name is
checked.  If it is greater than the allowed limit, an error message
is reported. Also, the constraint name is printed in the same manner
as the table name, using the system charset information.

rb://1969 approved by Marko.
2013-02-12 14:52:48 +05:30
Marko Mäkelä
f3e2ac3067 Merge mysql-5.1 to mysql-5.5. 2013-01-21 15:19:18 +02:00
Sergei Golubchik
d41d43f421 MDEV-4065 thd_kill_statement service 2013-01-18 19:04:23 +01:00
Sergei Golubchik
d3935adf7a mysql-5.5.29 merge 2013-01-15 19:13:32 +01:00
Sergei Golubchik
aca8e7ed6b 5.3 merge 2013-01-15 19:07:46 +01:00
Sergei Golubchik
750b9147fc remove thd_mark_as_hard_kill()
(because it's conceptually wrong. only the user can decide whether the kill is
allowed to leave tables in the inconsistent state, storage engine has no say in that)
2013-01-15 17:46:46 +01:00
Michael Widenius
6e9a48b67f Fixed some race conditons and bugs related to killed queries
KILL now breaks locks inside InnoDB
Fixed possible deadlock when running INNODB STATUS
Added ha_kill_query() and kill_query() to send kill signal to all storage engines
Added reset_killed() to ensure we don't reset killed state while awake() is getting called


include/mysql/plugin.h:
  Added thd_mark_as_hard_kill()
include/mysql/plugin_audit.h.pp:
  Added thd_mark_as_hard_kill()
include/mysql/plugin_auth.h.pp:
  Added thd_mark_as_hard_kill()
include/mysql/plugin_ftparser.h.pp:
  Added thd_mark_as_hard_kill()
sql/handler.cc:
  Added ha_kill_query() to send kill signal to all storage engines
sql/handler.h:
  Added ha_kill_query() and kill_query() to send kill signal to all storage engines
sql/log_event.cc:
  Use reset_killed()
sql/mdl.cc:
  use thd->killed instead of thd_killed() to abort on soft kill
sql/sp_rcontext.cc:
  Use reset_killed()
sql/sql_class.cc:
  Fixed possible deadlock in INNODB STATUS by not getting thd->LOCK_thd_data if it's locked.
  Use reset_killed()
  Tell storge engines that KILL has been sent
sql/sql_class.h:
  Added reset_killed() to ensure we don't reset killed state while awake() is getting called.
  Added mark_as_hard_kill()
sql/sql_insert.cc:
  Use reset_killed()
sql/sql_parse.cc:
  Simplify detection of killed queries.
  Use reset_killed()
sql/sql_select.cc:
  Use reset_killed()
sql/sql_union.cc:
  Use reset_killed()
storage/innobase/handler/ha_innodb.cc:
  Added innobase_kill_query()
  Fixed error reporting for interrupted queries.
storage/xtradb/handler/ha_innodb.cc:
  Added innobase_kill_query()
  Fixed error reporting for interrupted queries.
2013-01-11 00:22:14 +02:00
Sergei Golubchik
4f67a14700 5.2->5.3 merge 2013-01-10 15:40:21 +01:00
Annamalai Gurusami
9a0f3d3d53 Bug #16004999 ASSERT STATE == TRX_STATE_NOT_STARTED, UNLOCK_ROW()
Problem:

During the index intersect access method, the SQL layer will access one row,
that satisfies a set of conditions, using an index i1.  And then it will try to
access the same row, with other set of conditions using the next index i2.  If
the fetch from i2 fails (we are talking about an error situation here and not
simply an unmatched row situation), then it will unlock the row accessed via
i1.  This will work in all situations except deadlock error.

When a deadlock happens, InnoDB will rollback the transaction.  InnoDB intimates
the SQL layer about this through the THD::transaction_rollback_request member.
But this is not currently used by the SQL layer.

Solution:

When an error happens, the SQL layer must check the 
THD::transaction_rollback_request member, before calling handler::unlock_row().
We have also added a debug assert in ha_innobase::unlock_row() checking that
it must be called only when the transaction is in active state.

rb#1773 approved by Marko and Sunny.
2013-01-10 10:28:04 +05:30
Vasil Dimov
e8ec0212bb Merge mysql-5.1 -> mysql-5.5 2012-12-18 21:02:56 +02:00
Bill Qu
c3e918ea90 Approved by Jimmy and Inaam. rb#1576 2012-12-17 23:13:46 +08:00
Marko Mäkelä
c85f51f92a Follow-up fix to Bug#14628410: Remove the Windows InnoDB Plugin specific
implementation of innobase_mysql_tmpfile() from MySQL 5.5 onwards.
2012-12-13 17:12:21 +02:00
Satya Bodapati
bf42e842e5 Merge fix for Bug#14628410 from mysql-5.1 to mysql-5.5 2012-12-13 18:56:47 +05:30
Yasufumi Kinoshita
ddf518c567 Bug#59354 : Bug #12659252 : ASSERT !OTHER_LOCK AT LOCK_REC_ADD_TO_QUEUE DURING A DELETE OPERATION
The converted implicit lock should wait for the prior conflicting lock if found.

rb://1437 approved by Marko
2012-11-28 17:07:02 +09:00
Yasufumi Kinoshita
8dd87e690d Bug#59354 : Bug #12659252 : ASSERT !OTHER_LOCK AT LOCK_REC_ADD_TO_QUEUE DURING A DELETE OPERATION
The converted implicit lock should wait for the prior conflicting lock if found.

rb://1437 approved by Marko
2012-11-28 17:05:23 +09:00
Yasufumi Kinoshita
5a7553f36a Bug #14676111 WRONG PAGE_LEVEL WRITTEN FOR UPPER THAN FATHER PAGE AT BTR_LIFT_PAGE_UP()
btr_lift_page_up() writes wrong page number (different by -1) for upper than father page.
But in almost all of the cases, the father page should be root page, no upper
pages. It is very rare path.

In addition the leaf page should not be lifted unless the father page is root.
Because the branch pages should not become the leaf pages.

rb://1336 approved by Marko Makela.
2012-11-12 22:31:30 +09:00
Vasil Dimov
04195c30c1 This is a backport of "WL#5674 InnoDB: report all deadlocks (Bug#1784)"
from MySQL 5.6 into MySQL 5.5

Will close Bug#14515889 BACKPORT OF INNODB DEADLOCK LOGGING TO 5.5

The original implementation is in
vasil.dimov@oracle.com-20101213120811-k2ldtnao2t6zrxfn

Approved by:	Jimmy (rb:1535)
2012-11-12 14:24:43 +02:00
Yasufumi Kinoshita
51d01d7517 Bug #14676111 WRONG PAGE_LEVEL WRITTEN FOR UPPER THAN FATHER PAGE AT BTR_LIFT_PAGE_UP()
btr_lift_page_up() writes wrong page number (different by -1) for upper than father page.
But in almost all of the cases, the father page should be root page, no upper
pages. It is very rare path.

In addition the leaf page should not be lifted unless the father page is root.
Because the branch pages should not become the leaf pages.

rb://1336 approved by Marko Makela.
2012-11-12 22:33:40 +09:00
Sergei Golubchik
ee9afef271 mysql-5.5.28 2012-10-16 13:04:42 +02:00
Annamalai Gurusami
378a7d1ef5 Bug #14036214 MYSQLD CRASHES WHEN EXECUTING UPDATE IN TRX WITH
CONSISTENT SNAPSHOT OPTION

A transaction is started with a consistent snapshot.  After 
the transaction is started new indexes are added to the 
table.  Now when we issue an update statement, the optimizer
chooses an index.  When the index scan is being initialized
via ha_innobase::change_active_index(), InnoDB reports 
the error code HA_ERR_TABLE_DEF_CHANGED, with message 
stating that "insufficient history for index".

This error message is propagated up to the SQL layer.  But
the my_error() api is never called.  The statement level
diagnostics area is not updated with the correct error 
status (it remains in Diagnostics_area::DA_EMPTY).  

Hence the following check in the Protocol::end_statement()
fails.

 516   case Diagnostics_area::DA_EMPTY:
 517   default:
 518     DBUG_ASSERT(0);
 519     error= send_ok(thd->server_status, 0, 0, 0, NULL);
 520     break;

The fix is to backport the fix of bugs 14365043, 11761652 
and 11746399. 

14365043 PROTOCOL::END_STATEMENT(): ASSERTION `0' FAILED
11761652 HA_RND_INIT() RESULT CODE NOT CHECKED
11746399 RETURN VALUES OF HA_INDEX_INIT() AND INDEX_INIT() IGNORED

rb://1227 approved by guilhem and mattiasj.
2012-10-08 19:40:30 +05:30
Michael Widenius
ea6a4eef3a Fixed issues found by buildbot & valgrind:
- Wrong thd uses in Item_subselect, could lead to crash
- Inititalize uninitialized variable in new autoincrement handling code


sql/handler.cc:
  More DBUG_PRINT
sql/item_subselect.cc:
  Wrong thd uses in Item_subselect, could lead to crash
storage/innobase/handler/ha_innodb.cc:
  Initialize variable needed by upper level. This only happens when auto-increment value wraps over.
storage/xtradb/handler/ha_innodb.cc:
  Initialize variable needed by upper level. This only happens when auto-increment value wraps over.
2012-10-04 23:52:11 +03:00
Marko Mäkelä
6bbe24e9a0 Bug#14636528 INNODB CHANGE BUFFERING IS NOT ENTIRELY CRASH-SAFE
Delete-mark change buffer records when resorting to a pessimistic
delete from the change buffer B-tree. Skip delete-marked records in
the change buffer merge and when estimating whether an operation can
be buffered. Without this fix, we could try to apply the same buffered
changes multiple times if the server was killed at the right moment.

In MySQL 5.5 and later: ibuf_get_volume_buffered_count_func(): Ignore
delete-marked (already processed) records.

ibuf_delete_rec(): Add a crash point before optimistic delete. If the
optimistic delete fails, flag the record processed before
mtr_commit().

ibuf_merge_or_delete_for_page(): Ignore delete-marked (already
processed) records.

Backport to 5.1: Rename btr_cur_del_unmark_for_ibuf() to
btr_cur_set_deleted_flag_for_ibuf() and add a parameter.

rb:1307 approved by Jimmy Yang
2012-09-19 22:35:38 +03:00
Michael Widenius
ae5bc05988 Fix for MDEV-533: Confusing error code when doing auto-increment insert for out-of-range values
create table t1 (a smallint primary key auto_increment);
insert into t1 values(32767);
insert into t1 values(NULL);
ERROR 1062 (23000): Duplicate entry '32767' for key 'PRIMARY

Now on always gets error HA_ERR_AUTOINC_RANGE=167 "Out of range value for column", independent of
store engine, SQL Mode or number of inserted rows. This is an unique error that is easier to test for in replication.

Another bug fix is that we now get an error when trying to insert a too big auto-generated value, even in non-strict mode.
Before one get insted the max column value inserted.
This patch also fixes some issues with inserting negative numbers in an auto-increment column.
Fixed the ER_DUP_ENTRY and HA_ERR_AUTOINC_ERANGE are compared the same between master and slave.
This ensures that replication works between an old server to a new slave for auto-increment overflow errors.
Added SQLSTATE errors for handler errors

Smaller bug fixes:
* Added warnings for duplicate key errors when using INSERT IGNORE
* Fixed bug when using --skip-log-bin followed by --log-bin, which did set log-bin to "0"
* Allow one to see how cmake is called by using --just-print --just-configure


BUILD/FINISH.sh:
  --just-print --just-configure now shows how cmake would be invoked. Good for understanding parameters to cmake.
cmake/configure.pl:
  --just-print --just-configure now shows how cmake would be invoked. Good for understanding parameters to cmake.
include/CMakeLists.txt:
  Added handler_state.h
include/handler_state.h:
  SQLSTATE for handler error messages.
  Required for HA_ERR_AUTOINC_ERANGE, but solves also some other cases.
mysql-test/extra/binlog_tests/binlog.test:
  Fixed old wrong behaviour
  Added more tests
mysql-test/extra/binlog_tests/binlog_insert_delayed.test:
  Reset binary log to only print what's necessary in show_binlog_events
mysql-test/extra/rpl_tests/rpl_auto_increment.test:
  Update to new error codes
mysql-test/extra/rpl_tests/rpl_insert_delayed.test:
  Ignore warnings as this depends on how the test is run
mysql-test/include/strict_autoinc.inc:
  On now gets an error on overflow
mysql-test/r/auto_increment.result:
  Update results after fixing error message
mysql-test/r/auto_increment_ranges_innodb.result:
  Test new behaviour
mysql-test/r/auto_increment_ranges_myisam.result:
  Test new behaviour
mysql-test/r/commit_1innodb.result:
  Added warnings for duplicate key error
mysql-test/r/create.result:
  Added warnings for duplicate key error
mysql-test/r/insert.result:
  Added warnings for duplicate key error
mysql-test/r/insert_select.result:
  Added warnings for duplicate key error
mysql-test/r/insert_update.result:
  Added warnings for duplicate key error
mysql-test/r/mix2_myisam.result:
  Added warnings for duplicate key error
mysql-test/r/myisam_mrr.result:
  Added warnings for duplicate key error
mysql-test/r/null_key.result:
  Added warnings for duplicate key error
mysql-test/r/replace.result:
  Update to new error codes
mysql-test/r/strict_autoinc_1myisam.result:
  Update to new error codes
mysql-test/r/strict_autoinc_2innodb.result:
  Update to new error codes
mysql-test/r/strict_autoinc_3heap.result:
  Update to new error codes
mysql-test/r/trigger.result:
  Added warnings for duplicate key error
mysql-test/r/xtradb_mrr.result:
  Added warnings for duplicate key error
mysql-test/suite/binlog/r/binlog_innodb_row.result:
  Updated result
mysql-test/suite/binlog/r/binlog_row_binlog.result:
  Out of range data for auto-increment is not inserted anymore
mysql-test/suite/binlog/r/binlog_statement_insert_delayed.result:
  Updated result
mysql-test/suite/binlog/r/binlog_stm_binlog.result:
  Out of range data for auto-increment is not inserted anymore
mysql-test/suite/binlog/r/binlog_unsafe.result:
  Updated result
mysql-test/suite/innodb/r/innodb-autoinc.result:
  Update to new error codes
mysql-test/suite/innodb/r/innodb-lock.result:
  Updated results
mysql-test/suite/innodb/r/innodb.result:
  Updated results
mysql-test/suite/innodb/r/innodb_bug56947.result:
  Updated results
mysql-test/suite/innodb/r/innodb_mysql.result:
  Updated results
mysql-test/suite/innodb/t/innodb-autoinc.test:
  Update to new error codes
mysql-test/suite/maria/maria3.result:
  Updated result
mysql-test/suite/maria/mrr.result:
  Updated result
mysql-test/suite/optimizer_unfixed_bugs/r/bug43617.result:
  Updated result
mysql-test/suite/rpl/r/rpl_auto_increment.result:
  Update to new error codes
mysql-test/suite/rpl/r/rpl_insert_delayed,stmt.rdiff:
  Updated results
mysql-test/suite/rpl/r/rpl_loaddatalocal.result:
  Updated results
mysql-test/t/auto_increment.test:
  Update to new error codes
mysql-test/t/auto_increment_ranges.inc:
  Test new behaviour
mysql-test/t/auto_increment_ranges_innodb.test:
  Test new behaviour
mysql-test/t/auto_increment_ranges_myisam.test:
  Test new behaviour
mysql-test/t/replace.test:
  Update to new error codes
mysys/my_getopt.c:
  Fixed bug when using --skip-log-bin followed by --log-bin, which did set log-bin to "0"
sql/handler.cc:
  Ignore negative values for signed auto-increment columns
  Always give an error if we get an overflow for an auto-increment-column (instead of inserting the max value)
  Ensure that the row number is correct for the out-of-range-value error message.
  
  
  ******
  Fixed wrong printing of column namn for "Out of range value" errors
  Fixed that INSERT_ID is correctly replicated also for out-of-range autoincrement values
  Fixed that print_keydup_error() can also be used to generate warnings
  ******
  Return HA_ERR_AUTOINC_ERANGE (167) instead of ER_WARN_DATA_OUT_OF_RANGE for auto-increment overflow
sql/handler.h:
  Allow INSERT IGNORE to continue also after out-of-range inserts.
  Fixed that print_keydup_error() can also be used to generate warnings
sql/log_event.cc:
  Added DBUG_PRINT
  Fixed the ER_AUTOINC_READ_FAILED, ER_DUP_ENTRY and HA_ERR_AUTOINC_ERANGE are compared the same between master and slave.
  This ensures that replication works between an old server to a new slave for auto-increment overflow errors.
sql/sql_insert.cc:
  Add warnings for duplicate key errors when using INSERT IGNORE
sql/sql_state.c:
  Added handler errors
sql/sql_table.cc:
  Update call to print_keydup_error()
storage/innobase/handler/ha_innodb.cc:
  Fixed increment handling of auto-increment columns to be consistent with rest of MariaDB.
storage/xtradb/handler/ha_innodb.cc:
  Fixed increment handling of auto-increment columns to be consistent with rest of MariaDB.
2012-09-18 15:14:19 +03:00
Marko Mäkelä
161a91d39f Merge mysql-5.1 to mysql-5.5. 2012-09-19 22:55:26 +03:00
Jorgen Loland
816a8b5384 Bug#14547952: DEBUG BUILD FAILS ASSERTION IN RECORDS_IN_RANGE()
ha_innobase::records_in_range(): Remove a debug assertion
that prohibits an open range (full table).
This assertion catches unnecessary calls to this method, 
but such calls are not harming correctness.
2012-08-28 14:51:01 +02:00
Annamalai Gurusami
3f0e739e3e Merge from mysql-5.1 to mysql-5.5. 2012-09-01 11:27:53 +05:30
Aditya A
30aadd6b41 Bug#14145950 AUTO_INCREMENT ON DOUBLE WILL FAIL ON WINDOWS
Backport from mysql-5.6 the fix
(revision-id sunny.bains@oracle.com-20120315045831-20rgfa4cozxmz7kz)

  Bug#13839886 - CRASH IN INNOBASE_NEXT_AUTOINC
  
  The assertion introduce in the fix for Bug#13817703 
  is too strong, a negative  number can be greater 
  than the column max value, when the column value is
  a negative number.
  
  rb://978 Approved by Jimmy Yang.

rb:1236 approved by Marko Makela
2012-08-27 15:42:11 +05:30
Sergei Golubchik
4201939d57 remove mysql-5.1 assert that is already absent in mysql-5.5 2012-08-23 13:52:36 +02:00
Sergei Golubchik
f72a765997 5.2 merge.
two tests still fail:
  main.innodb_icp and main.range_vs_index_merge_innodb
  call records_in_range() with both range ends being open
  (which triggers an assert)
2012-08-22 16:45:25 +02:00
Michael Widenius
75e8ce6d73 Ensure we don't assert with debug binaries if SHOW INNODB STATUS returns with an error.
sql/handler.cc:
  SHOW INNODB STATUS sometimes returns 0 even if it has generated an error.
  This code is here to catch it until InnoDB some day is fixed.
storage/innobase/handler/ha_innodb.cc:
  Catch at least one of the possible errors from SHOW INNODB STATUS to provide a correct return code.
storage/xtradb/handler/ha_innodb.cc:
  Catch at least one of the possible errors from SHOW INNODB STATUS to provide a correct return code.
support-files/my-huge.cnf.sh:
  Fixed typo
2012-08-20 22:54:15 +03:00
Michael Widenius
dd8bd2e4c3 Fixed compiler warnings
sql/item_subselect.cc:
  Added purecov info
sql/sql_select.cc:
  Added cast
storage/innobase/handler/ha_innodb.cc:
  Added cast
storage/xtradb/btr/btr0btr.c:
  Added buf_block_get_frame_fast() to avoid compiler warning
storage/xtradb/handler/ha_innodb.cc:
  Added cast
storage/xtradb/include/buf0buf.h:
  Innodb has buf_block_get_frame(block) defined as (block)->frame.
  Didn't want to do a big change to break xtradb as it may use block_get_frame() differently, so I mad this quick hack to patch one compiler warning.
2012-08-15 09:34:18 +03:00
Michael Widenius
c0f04fa31c Automatic merge 2012-08-13 23:45:16 +03:00
Michael Widenius
cee888acb3 Fixed compiler warnings (A few of these was bugs)
client/mysqldump.c:
  Slave needs to be initialized with 0
dbug/dbug.c:
  Removed not existing function
plugin/semisync/semisync_master.cc:
  Fixed compiler warning
sql/opt_range.cc:
  thd needs to be set early as it's used in some error conditions.
sql/sql_table.cc:
  Changed to use uchar* to make array indexing portable
storage/innobase/handler/ha_innodb.cc:
  Removed not used variable
storage/maria/ma_delete.c:
  Fixed compiler warning
storage/maria/ma_write.c:
  Fixed compiler warning
2012-08-13 22:23:28 +03:00
Sergei Golubchik
d11829654c merge with MySQL 5.5.27
manually checked every change, reverted incorrect or stupid changes.
2012-08-09 17:22:00 +02:00
Annamalai Gurusami
1c6f78e337 Bug #13113026 INFORMATION_SCHEMA.INNODB_BUFFER_PAGE_LRUFROM 5.6 BACKPORT
Backporting the WL#5716, "Information schema table for InnoDB
buffer pool information". Backporting revisions 2876.244.113,
2876.244.102 from mysql-trunk.

rb://1177 approved by Jimmy Yang.
2012-07-25 10:48:16 +05:30
Jon Olav Hauglid
a47e778a61 Bug#12623923 Server can crash after failure to create
primary key with innodb tables

The bug was triggered if a single ALTER TABLE statement both
added and dropped indexes and ALTER TABLE failed during drop
(e.g. because the index was needed in a foreign key constraint).
In such cases, the server index information would get out of
sync with InnoDB - the added index would be present inside
InnoDB, but not in the server. This could then lead to InnoDB
error messages and/or server crashes.

The root cause is that new indexes are added before old indexes
are dropped. This means that if ALTER TABLE fails while dropping
indexes, index changes will be reverted in the server but not
inside InnoDB.

This patch fixes the problem by dropping any added indexes
if drop fails (for ALTER TABLE statements that both adds
and drops indexes). 

However, this won't work if we added a primary key as this
key might not be possible to drop inside InnoDB. Therefore,
we resort to the copy algorithm if a primary key is added
by an ALTER TABLE statement that also drops an index.

In 5.6 this bug is more properly fixed by the handler interface
changes done in the scope of WL#5534 "Online ALTER".
2012-07-10 16:13:02 +02:00
Jon Olav Hauglid
66ef5b0d48 Bug#14238406 NEW COMPILATION WARNINGS WITH GCC 4.7 (-WERROR=NARROWING)
Manual merge from mysql-5.1 to mysql-5.5
2012-06-29 13:36:01 +02:00
Jon Olav Hauglid
1ede2dd814 Bug#14238406 NEW COMPILATION WARNINGS WITH GCC 4.7 (-WERROR=NARROWING)
This patch fixes various compilation warnings of the type
"error: narrowing conversion of 'x' from 'datatype1' to
'datatype2'
2012-06-29 13:25:57 +02:00