clean up SHOW GRANTS so it will show host-names with case as entered.
make REVOKE and friends case-sensitive to make things more intuitive.
Patch by Martin Friebe.


mysql-test/r/grant.result:
  Bug#19828: Case sensitivity in hostname leads to inconsistent behavior
  
  clean up after test so random order of tests is possible
mysql-test/r/grant3.result:
  Bug#19828: Case sensitivity in hostname leads to inconsistent behavior
  
  Show that REVOKE, SHOW GRANTS etc. are now consistently case-sensitive.
mysql-test/t/grant.test:
  Bug#19828: Case sensitivity in hostname leads to inconsistent behavior
  
  clean up after test so random order of tests is possible
mysql-test/t/grant3.test:
  Bug#19828: Case sensitivity in hostname leads to inconsistent behavior
  
  Show that REVOKE, SHOW GRANTS etc. are now consistently case-sensitive.

Result adjusted.


mysql-test/r/federated.result:
  Fixed #29923: federated.test fails in 5.0-maint, 5.1-maint
    - result adjusted.

into  zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.0-maint


mysql-test/t/federated.test:
  Auto merged
sql/ha_federated.h:
  Auto merged
mysql-test/r/federated.result:
  Manual merge.

into  zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.0-maint

into  damien-katzs-computer.local:/Users/dkatz/50

	when creating table

Federated tables had an artificially low maximum of key length, 
because the handler failed to implement a method to return it and 
the default value is taked from the prototype handler.

Now, implement that method and return the maximum possible key
length, which is that of InnoDB.


mysql-test/r/federated.result:
  Verify that unique keys may be longer than 255 characters.
mysql-test/t/federated.test:
  Verify that unique keys may be longer than 255 characters.
sql/ha_federated.h:
  Implement the virtual method that tells the max size of parts to 
  make a key.
  
  Backport the length defined in 5.1.

Fixed the yassl base64 decoding to correctly allocate a maximum decoded buffer size. 


mysql-test/std_data/server8k-cert.pem:
  BitKeeper file /Users/dkatz/50/mysql-test/std_data/server8k-cert.pem
mysql-test/std_data/server8k-key.pem:
  BitKeeper file /Users/dkatz/50/mysql-test/std_data/server8k-key.pem
extra/yassl/taocrypt/src/coding.cpp:
  Fixed buffer allocation to compute the proper maximum decoded size: (EncodedLength * 3/4) + 3
mysql-test/r/ssl_8k_key.result:
  New BitKeeper file ``mysql-test/r/ssl_8k_key.result''
  
  Test connection to server using large SSL key.
mysql-test/t/ssl_8k_key.test:
  New BitKeeper file ``mysql-test/t/ssl_8k_key.test''
  
  Test connection to server using large SSL key.

into  ramayana.hindu.god:/home/tsmith/m/bk/maint/50


sql/mysql_priv.h:
  Auto merged

into  bodhi.(none):/opt/local/work/mysql-5.0-runtime

into  sin.intern.azundris.com:/home/tnurnberg/27198/50-27198

into  sin.intern.azundris.com:/home/tnurnberg/27198/50-27198


sql/mysql_priv.h:
  Auto merged
sql/sql_class.h:
  Auto merged

into  sin.intern.azundris.com:/home/tnurnberg/27198/41-27198


sql/mysql_priv.h:
  Bug #27198: Error returns from time() are ignored
  
  manual merge
sql/sql_class.h:
  Bug #27198: Error returns from time() are ignored
  
  manual merge

into  bodhi.(none):/opt/local/work/mysql-5.0-runtime


mysql-test/t/sp.test:
  Auto merged
sql/item.h:
  Auto merged
sql/sql_parse.cc:
  Auto merged
sql/sql_show.cc:
  Auto merged
sql/sql_yacc.yy:
  Auto merged
mysql-test/r/innodb_mysql.result:
  Manual merge.
mysql-test/t/innodb_mysql.test:
  Manual merge.

selected prior: ensure the fix also works for information_schema
tables.


sql/sql_parse.cc:
  Ensure the fix for Bug#29050 works for information_schema tables.

into  chilla.local:/home/mydev/mysql-5.0-axmrg

Linux Debug build (possible deadlock)"

The bug is not repeatable any more.


mysql-test/r/innodb_mysql.result:
  Update test results (Bug#27296)
mysql-test/t/innodb_mysql.test:
  Add a teste case for Bug#27296 "Assertion in ALTER TABLE SET DEFAULT in 
  Linux Debug build (possible deadlock)"

into  chilla.local:/home/mydev/mysql-5.0-axmrg

into  chilla.local:/home/mydev/mysql-5.0-axmrg

into  chilla.local:/home/mydev/mysql-4.1-axmrg

pseudo_thread_id was reset to zero via mysql_change_user() handling
whereas there is no reason to do that.  Moreover, having two
concurrent threads that change user and create a namesake temp tables
leads to recording the dup pair of queries:

   set @@session.pseudo_thread_id = 0;
   CREATE temporary table `the namesake`;

which will stall the slave as the second instance can not be created.
And that is the bug case.

Fixed by correcting pseudo_thread_id value after mysql_change_user().


sql/sql_class.cc:
  Fixed that pseudo_thread_id was set to 0 after mysql_change_user().

gettimeofday() can fail and presumably, so can time().
Keep an eye on it.

Since we have no data on this at all so far, we just
retry on failure (and log the event), assuming that
this is just an intermittant failure. This might of
course hang the threat until we succeed. Once we know
more about these failures, an appropriate more clever
scheme may be picked (only try so many times per thread,
etc., if that fails, return last "good" time() we got or
some such).  Using sql_print_information() to log as this
probably only occurs in high load scenarios where the debug-
trace likely is disabled (or might interfere with testing
the effect).  No test-case as this is a non-deterministic
issue.


sql/mysql_priv.h:
  Bug#27198: Error returns from time() are ignored
  
  move declarations for log.cc to before inclusion of
  sql_class.h as we now use sql_print_information() in
  there.
sql/sql_class.h:
  Bug#27198: Error returns from time() are ignored
  
  gettimeofday() can fail and presumably, so can time().
  Keep an eye on it.

into  whalegate.ndb.mysql.com:/home/tomas/mysql-5.0-maint


sql/set_var.cc:
  Auto merged

into  whalegate.ndb.mysql.com:/home/tomas/mysql-5.0-ndb

When opening a new connecgtion, changed mysqltest to prefer a brand new connection slot over an existing, closed slot. Fixes a problem with reused slots that can cause tests to fail. bug#29579


client/mysqltest.c:
  When opening a new connecgtion, changed mysqltest to prefer a brand new connection slot over an existing, closed slot. Fixes a problem with reused slots that can cause tests to fail.

BitKeeper/deleted/.del-ssl_big.test:
  Delete: mysql-test/t/ssl_big.test
extra/yassl/include/yassl_int.hpp:
  added comment
extra/yassl/src/yassl_int.cpp:
  Changed init order to fix a compiler warning.
mysql-test/r/mysqltest.result:
  There is no limit to connections anymore.
mysql-test/t/mysqltest.test:
  There is no limit to connections anymore.

into  damien-katzs-computer.local:/Users/dkatz/50

Added an option to yassl to allow "quiet shutdown" like openssl does. This option causes the SSL libs to NOT perform the close_notify handshake during shutdown. This fixes a hang we experience because we hold a lock during socket shutdown.


mysql-test/t/ssl_big.test:
  BitKeeper file /Users/dkatz/50/mysql-test/t/ssl_big.test
mysql-test/r/ssl-big.result:
  BitKeeper file /Users/dkatz/50/mysql-test/r/ssl-big.result
client/mysqltest.c:
  Added new command to mysqltest to send a quit command to the server, but to not close the actual socket on our end.
  
  Also changed code to reuse connection slots, so that the tests can open and close sockets in a loop.
extra/yassl/include/openssl/ssl.h:
  Added C accessors to the quietShutdown option.
extra/yassl/include/yassl_int.hpp:
  Added quietShutdown_ member and accessor methods to the SSL class.
extra/yassl/src/ssl.cpp:
  Added accessors to get/set the quietShutdown option and to not perform the shutdown handshake if quietShutdown is set.
extra/yassl/src/yassl_int.cpp:
  Added quietShutdown_ member and accessor methods to the SSL class.
vio/viossl.c:
  Added line to set the quiet_shutdown option before shutting down the socket.
mysql-test/t/ssl-big.test:
  Added a test that causes an unpatched server to hang during SSL socket shutdown.

into  bodhi.(none):/opt/local/work/mysql-5.0-runtime


sql/sql_prepare.cc:
  Auto merged

incomplete in 5.0 (and review fixes).

When in 5.0.13 I introduced class Prepared_statement and methods
::prepare and ::execute, general logging was left out of this class.
This was good for stored procedures, since in stored procedures
we do not log sub-statements, but introduced a regression in case of SQL
syntax for prepared statements, as previously we would log the actual
statements to the log, and after the change we would log only
COM_QUERY text.

Restore the old behavior, but still suppress logging if inside a stored 
procedure.

Based on a community contributed patch from Vladimir Shebordaev.

No test case since we do not have a mechanism to test output
of the general log.


sql/sql_prepare.cc:
  Apply community contributed fix for Bug#13326 SQLPS statement logging is 
  incomplete in 5.0 (and review fixes).

into  bodhi.(none):/opt/local/work/mysql-5.0-26141-final


sql/sql_yacc.yy:
  Auto merged

causes full table lock on innodb table.
Also fixes Bug#28502 Triggers that update another innodb table 
will block on X lock unnecessarily (duplciate).
Code review fixes.

Both bugs' synopses are misleading: InnoDB table is
not X locked. The statements, however, cannot proceed concurrently, 
but this happens due to lock conflicts for tables used in triggers,
not for the InnoDB table. 

If a user had an InnoDB table, and two triggers, AFTER UPDATE and 
AFTER INSERT, competing for different resources (e.g. two distinct
MyISAM tables), then these two triggers would not be able to execute
concurrently. Moreover, INSERTS/UPDATES of the InnoDB table would
not be able to run concurrently. 
The problem had other side-effects (see respective bug reports).

This behavior was a consequence of a shortcoming of the pre-locking
algorithm, which would not distinguish between different DML operations
(e.g. INSERT and DELETE) and pre-lock all the tables
that are used by any trigger defined on the subject table.

The idea of the fix is to extend the pre-locking algorithm to keep track,
for each table, what DML operation it is used for and not
load triggers that are known to never be fired.


mysql-test/r/trigger-trans.result:
  Update results (Bug#26141)
mysql-test/r/trigger.result:
  Update results (Bug#28502)
mysql-test/t/trigger-trans.test:
  Add a test case for Bug#26141 mixing table types in trigger causes 
  full table lock on innodb table.
mysql-test/t/trigger.test:
  Add a test case for Bug#28502 Triggers that update another innodb 
  table will block echo on X lock unnecessarily. Add more test 
  coverage for triggers.
sql/item.h:
  enum trg_event_type is needed in table.h
sql/sp.cc:
  Take into account table_list->trg_event_map when determining
  what tables to pre-lock. 
  
  After this change, if we attempt to fire a 
  trigger for which we had not pre-locked any tables, error
  'Table was not locked with LOCK TABLES' will be printed.
  This, however, should never happen, provided the pre-locking
  algorithm has no programming bugs.
  
  Previously a trigger key in the sroutines hash was based on the name 
  of the table the trigger belongs to. This was possible because we would
  always add to the pre-locking list all the triggers defined for a table when
  handling this table.
  Now the key is based on the name of the trigger, owing
  to the fact that a trigger name must be unique in the database it
  belongs to.
sql/sp_head.cc:
  Generate sroutines hash key in init_spname(). This is a convenient
  place since there we have all the necessary information and can
  avoid an extra alloc.
  
  Maintain and merge trg_event_map when adding and merging elements
  of the pre-locking list.
sql/sp_head.h:
  Add ,m_sroutines_key member, used when inserting the sphead for a
  trigger into the cache of routines used by a statement.
  Previously the key was based on the table name the trigger belonged
  to, since for a given table we would add to the sroutines list
  all the triggers defined on it.
sql/sql_lex.cc:
  Introduce a new lex step: set_trg_event_type_for_tables().
  It is called when we have finished parsing but before opening
  and locking tables. Now this step is used to evaluate for each
  TABLE_LIST instance which INSERT/UPDATE/DELETE operation, if any,
  it is used in.
  In future this method could be extended to aggregate other information
  that is hard to aggregate during parsing.
sql/sql_lex.h:
  Add declaration for set_trg_event_type_for_tables().
sql/sql_parse.cc:
  Call set_trg_event_type_for_tables() after MYSQLparse(). Remove tabs.
sql/sql_prepare.cc:
  Call set_trg_event_type_for_tables() after  MYSQLparse().
sql/sql_trigger.cc:
  Call set_trg_event_type_for_tables() after MYSQLparse().
sql/sql_trigger.h:
  Remove an obsolete member.
sql/sql_view.cc:
  Call set_trg_event_type_for_tables() after MYSQLparse().
sql/sql_yacc.yy:
  Move assignment of sp_head::m_type before calling sp_head::init_spname(), 
  one is now used inside another.
sql/table.cc:
  Implement TABLE_LIST::set_trg_event_map() - a method that calculates
  wh triggers may be fired on this table when executing a statement.
sql/table.h:
  Add missing declarations.
  Move declaration of trg_event_type from item.h (it will be needed for 
  trg_event_map bitmap when we start using Bitmap template instead
  of uint8).

into  adventure.(none):/home/thek/Development/cpp/mysql-5.0-runtime

into  adventure.(none):/home/thek/Development/cpp/mysql-5.0-runtime


mysql-test/t/query_cache.test:
  Auto merged
sql/ha_myisam.cc:
  Auto merged
sql/handler.h:
  Auto merged
mysql-test/r/query_cache.result:
  SCCS merged

A race condition in the integration between MyISAM and the query cache code 
caused the query cache to fail to invalidate itself on concurrently inserted
data.

This patch fix this problem by using the existing handler interface which, upon
each statement cache attempt, compare the size of the table as viewed from the 
cache writing thread and with any snap shot of the global table state. If the
two sizes are different the global table size is unknown and the current
statement can't be cached.


mysql-test/r/query_cache.result:
  Added test case
mysql-test/t/query_cache.test:
  Added test case
sql/ha_myisam.cc:
  - Implemented handler interface for ha_myisam class to dermine if the table
   belonging to the currently processed statement can be cached or not.
sql/ha_myisam.h:
  - Implemented handler interface for ha_myisam class to dermine if the table
   belonging to the currently processed statement can be cached or not.
sql/handler.h:
  - Documented register_query_cache_table method in the handler interface.

Fix the parser to make the database options not optional.


mysql-test/r/information_schema.result:
  Update results (Bug#25859)
mysql-test/t/information_schema.test:
  Add a test case for Bug#25859 "ALTER DATABASE works w/o parameters"
sql/sql_yacc.yy:
  Fix Bug#25859 ALTER DATABASE works w/o parameters - require
  parameters in the parser.

into  polly.local:/home/kaa/src/maint/mysql-5.0-maint


sql/slave.cc:
  Auto merged

In case of out-of-memory error received from the master, print the corresponding message to the error log and stop slave I/O thread to avoid reconnecting with a wrong binary log position.


sql/slave.cc:
  In case of out-of-memory error received from the master, print the corresponding message to the error log and stop slave I/O thread to avoid reconnecting with a wrong binary log position.

into  mysql.com:/home/tnurnberg/22540/50-22540


sql/log.cc:
  Auto merged

Apply innodb-5.0-* snapshots:  ss1489 and ss1547.

Fixes:
Bug#9709:  InnoDB inconsistensy causes "Operating System Error 32/33"
Bug#22819: SHOW INNODB STATUS crashes the server with an assertion failure under high load
Bug#25645: Assertion failure in file srv0srv.c
Bug#27294: insert into ... select ... causes crash with innodb_locks_unsafe_for_binlog=1
Bug#28138: indexing column prefixes produces corruption in InnoDB


innobase/btr/btr0btr.c:
  Apply innodb-5.0-* snapshots:  ss1489 and ss1547.
  
  Revision r1547:
  branches/5.0: Merge r1546 from trunk:
  
  When buffering an insert to a prefix index of a variable-length column,
  do not incorrectly mark the column as fixed-length.  (Bug #28138)
  
  ibuf_entry_build(): Instead of prefix_len, pass fixed_len to
  dtype_new_store_for_order_and_null_size().  Add debug assertions.
  
  btr_index_rec_validate(): Correct a comment about prefix indexes.
  
  rec_get_converted_size_new(), rec_convert_dtuple_to_rec_new(): Add
  debug assertions and comments.
  
  dict_col_type_assert_equal(): New debug function.
innobase/buf/buf0buf.c:
  Apply innodb-5.0-* snapshots:  ss1489 and ss1547.
  
  Revision r1502:
  branches/5.0: Add debug code for Bug 26081. This change has some debug
  assertions that have been promoted to normal assertions. These will need
  to be undone once we've nailed this bug.
innobase/buf/buf0lru.c:
  Apply innodb-5.0-* snapshots:  ss1489 and ss1547.
  
  Revision r1502:
  branches/5.0: Add debug code for Bug 26081. This change has some debug
  assertions that have been promoted to normal assertions. These will need
  to be undone once we've nailed this bug.
innobase/ibuf/ibuf0ibuf.c:
  Apply innodb-5.0-* snapshots:  ss1489 and ss1547.
  
  Revision r1547:
  branches/5.0: Merge r1546 from trunk:
  
  When buffering an insert to a prefix index of a variable-length column,
  do not incorrectly mark the column as fixed-length.  (Bug #28138)
  
  ibuf_entry_build(): Instead of prefix_len, pass fixed_len to
  dtype_new_store_for_order_and_null_size().  Add debug assertions.
  
  btr_index_rec_validate(): Correct a comment about prefix indexes.
  
  rec_get_converted_size_new(), rec_convert_dtuple_to_rec_new(): Add
  debug assertions and comments.
  
  dict_col_type_assert_equal(): New debug function.
innobase/include/buf0buf.ic:
  Apply innodb-5.0-* snapshots:  ss1489 and ss1547.
  
  Revision r1502:
  branches/5.0: Add debug code for Bug 26081. This change has some debug
  assertions that have been promoted to normal assertions. These will need
  to be undone once we've nailed this bug.
innobase/include/buf0lru.h:
  Apply innodb-5.0-* snapshots:  ss1489 and ss1547.
  
  Revision r1502:
  branches/5.0: Add debug code for Bug 26081. This change has some debug
  assertions that have been promoted to normal assertions. These will need
  to be undone once we've nailed this bug.
innobase/include/dict0dict.h:
  Apply innodb-5.0-* snapshots:  ss1489 and ss1547.
  
  Revision r1547:
  branches/5.0: Merge r1546 from trunk:
  
  When buffering an insert to a prefix index of a variable-length column,
  do not incorrectly mark the column as fixed-length.  (Bug #28138)
  
  ibuf_entry_build(): Instead of prefix_len, pass fixed_len to
  dtype_new_store_for_order_and_null_size().  Add debug assertions.
  
  btr_index_rec_validate(): Correct a comment about prefix indexes.
  
  rec_get_converted_size_new(), rec_convert_dtuple_to_rec_new(): Add
  debug assertions and comments.
  
  dict_col_type_assert_equal(): New debug function.
innobase/include/dict0dict.ic:
  Apply innodb-5.0-* snapshots:  ss1489 and ss1547.
  
  Revision r1547:
  branches/5.0: Merge r1546 from trunk:
  
  When buffering an insert to a prefix index of a variable-length column,
  do not incorrectly mark the column as fixed-length.  (Bug #28138)
  
  ibuf_entry_build(): Instead of prefix_len, pass fixed_len to
  dtype_new_store_for_order_and_null_size().  Add debug assertions.
  
  btr_index_rec_validate(): Correct a comment about prefix indexes.
  
  rec_get_converted_size_new(), rec_convert_dtuple_to_rec_new(): Add
  debug assertions and comments.
  
  dict_col_type_assert_equal(): New debug function.
innobase/include/dict0mem.h:
  Apply innodb-5.0-* snapshots:  ss1489 and ss1547.
  
  Revision r1537:
  branches/5.0: merge r1536 and partially r1535
  
  Change the comment to a more appropriate one. Discussed with Heikki on IM.
  
  Document that DICT_MAX_INDEX_COL_LEN should not be changed.
innobase/include/os0file.h:
  Apply innodb-5.0-* snapshots:  ss1489 and ss1547.
  
  Revision r1417:
  branches/5.0: Fix Bug#9709 by retrying (forever) if ERROR_SHARING_VIOLATION or
  ERROR_LOCK_VIOLATION is encountered during file operation.
  This is caused by backup software, so InnoDB should retry while the backup
  software is done with the file.
  
  Approved by:	Heikki
innobase/include/trx0trx.h:
  Apply innodb-5.0-* snapshots:  ss1489 and ss1547.
  
  Revision r1463:
  branches/5.0: merge r1462 from trunk:
  
  Fix typo in comment.
innobase/lock/lock0lock.c:
  Apply innodb-5.0-* snapshots:  ss1489 and ss1547.
  
  Revision r1458:
  branches/5.0: Fix Bug#22819, remove assertion.  (http://bugs.mysql.com/bug.php?id=22819)
innobase/log/log0log.c:
  Apply innodb-5.0-* snapshots:  ss1489 and ss1547.
  
  Revision r1520:
  Patch to allow monitor threads to stop before proceeding with normal shutdown. 
  Also have a separate time counter for tablespace monitor.
  
  reviewed by: Heikki
  
  
  Revision r1525:
  backport of r1524
  
  Log:
  Undo bad space formatting introduced in earlier commit r1521
  
  spotted by: Marko
innobase/mtr/mtr0mtr.c:
  Apply innodb-5.0-* snapshots:  ss1489 and ss1547.
  
  Revision r1502:
  branches/5.0: Add debug code for Bug 26081. This change has some debug
  assertions that have been promoted to normal assertions. These will need
  to be undone once we've nailed this bug.
innobase/os/os0file.c:
  Apply innodb-5.0-* snapshots:  ss1489 and ss1547.
  
  Revision r1417:
  branches/5.0: Fix Bug#9709 by retrying (forever) if ERROR_SHARING_VIOLATION or
  ERROR_LOCK_VIOLATION is encountered during file operation.
  This is caused by backup software, so InnoDB should retry while the backup
  software is done with the file.
  
  Approved by:	Heikki
innobase/rem/rem0rec.c:
  Apply innodb-5.0-* snapshots:  ss1489 and ss1547.
  
  Revision r1547:
  branches/5.0: Merge r1546 from trunk:
  
  When buffering an insert to a prefix index of a variable-length column,
  do not incorrectly mark the column as fixed-length.  (Bug #28138)
  
  ibuf_entry_build(): Instead of prefix_len, pass fixed_len to
  dtype_new_store_for_order_and_null_size().  Add debug assertions.
  
  btr_index_rec_validate(): Correct a comment about prefix indexes.
  
  rec_get_converted_size_new(), rec_convert_dtuple_to_rec_new(): Add
  debug assertions and comments.
  
  dict_col_type_assert_equal(): New debug function.
innobase/row/row0sel.c:
  Apply innodb-5.0-* snapshots:  ss1489 and ss1547.
  
  Revision r1456:
  branches/5.0: merge r1452 from trunk:
  
  Fix phantom reads (http://bugs.mysql.com/27197) following Heikki's
  patch in the bug followup.
innobase/srv/srv0srv.c:
  Apply innodb-5.0-* snapshots:  ss1489 and ss1547.
  
  Revision r1460:
  branches/5.0: Merge r1459 from trunk:
  
  Fix typo in the comment.
  
  
  Revision r1520:
  Patch to allow monitor threads to stop before proceeding with normal shutdown. 
  Also have a separate time counter for tablespace monitor.
  
  reviewed by: Heikki
sql/ha_innodb.cc:
  Apply innodb-5.0-* snapshots:  ss1489 and ss1547.
  
  Revision r1436:
  branches/5.0: Fix Bug#27294 by using trx returned by check_trx_exists()
  instead of prebuilt->trx. This has been fixed in 5.1 in r782.
  
  Approved by:	Heikki
  
  
  Revision r1443:
  branches/5.0: merge r1442 from trunk:
  
  Potential fix for Bug#25645:
  
  "Move innobase_release_stat_resources(trx) outside the 'if' in
  ha_innobase::external_lock(). That would add more safety that whatever
  MySQL does at a query end, there would be no risk of a hang on the btr
  search latch."
  
  Also call innobase_release_temporary_latches() in the beginning of
  ha_innobase::close().
  
  Approved by:	Heikki
  
  
  Revision r1454:
  branches/5.0: merge r1453 from trunk:
  
  Bugfix: only call innobase_release_temporary_latches() in case of current_thd
  is not NULL, otherwise we get NULL pointer dereferencing.
  
  
  
  Revision r1504:
  branches/5.0: Apply patch for Bug 27650 from MySQL.
  
  
  Revision r1539:
  Backport of r1538 from 5.1
  Do not return error in ha_innobase::info if srv_force_recovery >= 4. This is to allow for
  normal processing of the query by MySQL instead of generating an error.
  
  Reviewed by: Heikki