post-review change - use pointer instead of copy on the stack.
WL#1034 (Internal CRON)
 This patch adds INFORMATION_SCHEMA.EVENTS table with the following format:
  EVENT_CATALOG  - MYSQL_TYPE_STRING  (Always NULL)
  EVENT_SCHEMA   - MYSQL_TYPE_STRING  (the database)
  EVENT_NAME     - MYSQL_TYPE_STRING  (the name)
  DEFINER        - MYSQL_TYPE_STRING  (user@host)
  EVENT_BODY     - MYSQL_TYPE_STRING  (the body from mysql.event)
  EVENT_TYPE     - MYSQL_TYPE_STRING  ("ONE TIME" | "RECURRING")
  EXECUTE_AT     - MYSQL_TYPE_TIMESTAMP (set for "ONE TIME" otherwise NULL)
  INTERVAL_VALUE - MYSQL_TYPE_LONG    (set for RECURRING otherwise NULL)
  INTERVAL_FIELD - MYSQL_TYPE_STRING  (set for RECURRING otherwise NULL)
  SQL_MODE       - MYSQL_TYPE_STRING  (for now NULL)
  STARTS         - MYSQL_TYPE_TIMESTAMP (starts from mysql.event)
  ENDS           - MYSQL_TYPE_TIMESTAMP (ends from mysql.event)
  STATUS         - MYSQL_TYPE_STRING  (ENABLED | DISABLED)
  ON_COMPLETION  - MYSQL_TYPE_STRING  (NOT PRESERVE | PRESERVE)
  CREATED        - MYSQL_TYPE_TIMESTAMP
  LAST_ALTERED   - MYSQL_TYPE_TIMESTAMP
  LAST_EXECUTED  - MYSQL_TYPE_TIMESTAMP
  EVENT_COMMENT  - MYSQL_TYPE_STRING

  SQL_MODE is NULL for now, because the value is still not stored in mysql.event .
Support will be added as a fix for another bug.

 This patch also adds SHOW [FULL] EVENTS [FROM db] [LIKE pattern]
1. SHOW EVENTS shows always only the events on the same user,
   because the PK of mysql.event is (definer, db, name) several 
   users may have event with the same name -> no information disclosure.
2. SHOW FULL EVENTS - shows the events (in the current db as SHOW EVENTS)
   of all users. The user has to have PROCESS privilege, if not then
   SHOW FULL EVENTS behave like SHOW EVENTS.
3. If [FROM db] is specified then this db is considered.
4. Event names can be filtered with LIKE pattern.
  SHOW EVENTS returns table with the following columns, which are subset of
  the data which is returned by SELECT * FROM I_S.EVENTS
   Db
   Name
   Definer 
   Type
   Execute at
   Interval value
   Interval field 
   Starts 
   Ends
   Status


mysql-test/lib/init_db.sql:
  change the PK - (definer, db, name)
  quicker searches when SHOW EVENTS;
  allow also different users to have events with the same name -> 
  no information disclosure
mysql-test/r/events.result:
  result of new tests
mysql-test/r/information_schema.result:
  result of new tests
mysql-test/r/information_schema_db.result:
  result of new tests
mysql-test/r/system_mysql_db.result:
  result of new tests
mysql-test/t/events.test:
  new tests for information_schema.events
scripts/mysql_create_system_tables.sh:
  change the PK of mysql.event to (definer, db, name)
scripts/mysql_fix_privilege_tables.sql:
  change the PK of mysql.event to (definer, db, name)
sql/event.cc:
  pass around the definer of the event because of the new PK
  which is (definer, db, name). It's needed for index searching.
sql/event.h:
  - make enum evex_table_field again public so it can be used
  in sql_show.cc
  - make created and modified ulonglong, because they should be such
  - make public evex_open_event_table so it can be used in sql_show.cc
sql/event_executor.cc:
  - cosmetics
sql/event_priv.h:
  - moved enum evex_table_field and evex_open_event_table()
    to event.h (made them therefore public)
sql/event_timed.cc:
  - in event_timed::init_definer() always fill this.definer with
    the concatenated value of definer_user@definer_host. Makes
    later the work easier.
  - pass around the definer wherever is needed for searching 
    (new prototype of evex_db_find_evex_aux)
sql/mysqld.cc:
  - add counter for SHOW EVENTS
sql/sql_lex.h:
  - register SHOW EVENTS as command
sql/sql_parse.cc:
  - handle SCH_EVENTS (I_S.EVENTS like SCH_TRIGGERS)
  - make additional check in case of SHOW EVENTS (check for EVENT on
    the current database. if it is null check_access() gives appropriate
    message back.
sql/sql_show.cc:
  - add INFORMATION_SCHEMA.EVENTS and SHOW EVENTS
  - I_S.EVENTS.SQL_MODE is NULL for now -> not implemented. Trudy
    asked to be added so bug #16642 can be completely closed. There
    is another bug report which will fix the lack of storage of
    SQL_MODE during event creation.
sql/sql_yacc.yy:
  - always call event_timed::init_definer() when CREATE/ALTER/DROP
    EVENT but not when just compiling the body of the event because
    in this case this operation is not needed, it takes memory and
    CPU time and at the end the result is not used. event_timed::definer
    is used only on SQLCOM_CREATE/ALTER/DROP_EVENT execution not on
    statement compilation.
  - add SHOW [FULL] EVENTS [FROM db] [LIKE pattern]
    in case of FULL and the user has PROCESS privilege then he will see
    also others' events in the current database, otherwise the output
    is the same as of SHOW EVENTS. Because the events are per DB only
    the events from the current database are shown. pattern is applied
    against event name. FROM db is self explanatory.
sql/table.h:
  add SCH_EVENTS as part of INFORMATION_SCHEMA

mysql-test/r/partition_02myisam.result:
  Added to test result
mysql-test/t/disabled.def:
  New definition of disabled test cases

into  c-0c0be253.1238-1-64736c10.cust.bredbandsbolaget.se:/home/pappa/mysql-5.1-new

into  outpost.site:/home/cps/mysql/devel/mysql-5.1-logs-prepush

tree to get rid of multiple typos in CS comments and
unify the patch.


configure.in:
  CSV is compiled in by default now
include/my_base.h:
  add new ha_extra flag for the log tables
mysql-test/include/im_check_os.inc:
  we should only run im tests if csv is on for now: im relies
  on mysqld options available only in csv build.
mysql-test/include/system_db_struct.inc:
  check log tables structure
mysql-test/lib/init_db.sql:
  create log tables when running tests.
mysql-test/mysql-test-run.pl:
  Add old logs flag to IM tests. As IM could only deal with
  old logs (this feature is not needed with log tables)
mysql-test/r/connect.result:
  update result
mysql-test/r/csv.result:
  update result
mysql-test/r/im_utils.result:
  update result
mysql-test/r/information_schema.result:
  update result
mysql-test/r/mysqlcheck.result:
  update result
mysql-test/r/show_check.result:
  update result
mysql-test/r/system_mysql_db.result:
  update result
mysql-test/t/connect.test:
  disable test if CSV engine is not in: result depends on the
  presence of CSV-based log tables
mysql-test/t/csv.test:
  add tests for concurrent insert (the functionality is added
  to CSV in this patch)
mysql-test/t/information_schema.test:
  disable test if CSV engine is not in: result depends on the
  presence of CSV-based log tables
mysql-test/t/mysqlcheck.test:
  disable test if CSV engine is not in: result depends on the
  presence of CSV-based log tables
mysql-test/t/show_check.test:
  disable test if CSV engine is not in: result depends on the
  presence of CSV-based log tables
mysql-test/t/system_mysql_db.test:
  disable test if CSV engine is not in: result depends on the
  presence of CSV-based log tables
mysql-test/t/system_mysql_db_fix.test:
  disable test if CSV engine is not in: result depends on the
  presence of CSV-based log tables
scripts/mysql_create_system_tables.sh:
  new system tables: slow_log and general_log
scripts/mysql_fix_privilege_tables.sql:
  add new log tables: use an SP to create them for
  non-csv build to work fine.
sql/ha_myisam.cc:
  move locking-related checks to the hanlder
sql/ha_myisam.h:
  new function declared
sql/handler.h:
  new virtual function is added: we should check for handler-related
  locking issues in the handler
sql/lock.cc:
  from now on we check for handler-related locking issues
  in the handler itself rather then in lock.cc
sql/log.cc:
  Add log tables support, refactoring: there are log event
  handlers with common interface. They are used by the LOGGER
  class, which is responsible for their initialization, cleanup
  and managment. Logging to the tables provided by one of the
  log event handler types.
sql/log.h:
  declare new log classes
sql/log_event.cc:
  convert old logging routines calls to use new API
sql/mysql_priv.h:
  define common log routines and objects
sql/mysqld.cc:
  Add support for the log tables. Their initalization, cleanup
  and specific options.
sql/share/errmsg.txt:
  add new error messages for the log tables
sql/slave.cc:
  convert old logging routines calls to use new API
sql/sql_base.cc:
  TABLE objects used by the logger should be skipped
  during refreshes (as log tables are always opened
  and locked). fix table_is_used to skip them.  This
  is needed for FLUSH LOGS to work
sql/sql_db.cc:
  convert old logging routines calls to use new API
sql/sql_delete.cc:
  fix TRUNCATE to work with log tables
sql/sql_parse.cc:
  command_name is now an array of LEX_STRINGs
sql/sql_prepare.cc:
  convert old logging routines calls to use new API
sql/sql_show.cc:
  convert old logging routines calls to use new API
sql/sql_table.cc:
  don't reoped the log tables for admin purposes
sql/table.cc:
  mark log tables as such during the open
sql/table.h:
  add log-related info
storage/csv/ha_tina.cc:
  add support for concurrent insert (see bk commit - 5.1 tree
  (petr:1.1910) for standalone patch), add log tables-specific
  csv table handling.
storage/csv/ha_tina.h:
  enable concurrent insert for CSV, add log table flag
mysql-test/r/log_tables.result:
  New BitKeeper file ``mysql-test/r/log_tables.result''
mysql-test/t/log_tables.test:
  New BitKeeper file ``mysql-test/t/log_tables.test''

  Put options in standard order: --help first, then lexically.
  Rename --number-of-query to --number-of-queries.


client/mysqlslap.c:
  Put options in standard order: --help first, then lexically.
  Rename --number-of-query to --number-of-queries.

Moved init to lex_start


sql/sql_lex.cc:
  Added init to lex_start
sql/sql_yacc.yy:
  Removed init from CREATE INDEX code

into  c-0c0be253.1238-1-64736c10.cust.bredbandsbolaget.se:/home/pappa/mysql-5.1-new

mysql-test/include/partition_1.inc:
  Drop table missing in test case
sql/sql_partition.cc:
  Removed some dead code
sql/sql_yacc.yy:
  initialised name that was missing

into  mysql.com:/space/pekka/ndb/version/my51

into mysql.com:/home/hf/work/mysql-5.1.15910

sql/ha_partition.cc:
  using llstr to covert lonlong to string
sql/share/errmsg.txt:
  %ld to %s

storage/ndb/src/kernel/blocks/dbtup/DbtupTrigger.cpp:
  send identical post/pre data on update if recipient is SUMA (events, replication)

storage/ndb/src/kernel/blocks/suma/Suma.cpp:
  un-initialized m_reportAll caused event operation create / drop /create to get m_reportAll = true

  Disabled failing tests
mysql_priv.h:
  Removed compiler warning


sql/mysql_priv.h:
  Removed compiler warning
mysql-test/t/disabled.def:
  Disabled failing tests

into  mysql.com:/usr/local/home/marty/MySQL/mysql-5.1-new

  Don't display charsets/collations with HIDDEN flag.
ctype-utf8.c:
  Adding HIDDEN flag to "filename"
  Changeing ID to 17 which was previosly
  used by deprecated "win1251", removed in 4.1.
charset-def.c:
  Adding "filename" as a hidden charset, for test purposes.
m_ctype.h:
  Adding MY_CS_HIDDEN flag,
  to hide charsets and collations from
  being displayed in SHOW.


include/m_ctype.h:
  Adding MY_CS_HIDDEN flag,
  to hide charsets and collations from
  being displayed in SHOW.
mysys/charset-def.c:
  Adding "filename" as a hidden charset, for test purposes.
strings/ctype-utf8.c:
  Adding HIDDEN flag to "filename"
  Changeing ID to 17 which was previosly
  used by deprecated "win1251", removed in 4.1.
sql/sql_show.cc:
  Don't display charsets/collations with HIDDEN flag.

into  mysql.com:/usr/local/home/marty/MySQL/mysql-5.1-new

into  mysql.com:/usr/local/home/marty/MySQL/mysql-5.1-new

into  mysql.com:/usr/local/home/marty/MySQL/mysql-5.1-new


sql/sql_table.cc:
  Auto merged
sql/ha_ndbcluster.h:
  Auto merged
sql/ha_ndbcluster.cc:
  Auto merged

include/config-win.h:
  Auto merged

into mysql.com:/M51/mysql-5.1

into  poseidon.ndb.mysql.com:/home/tomas/mysql-5.1-new

into  c-0c0be253.1238-1-64736c10.cust.bredbandsbolaget.se:/home/pappa/wl2747-push


sql/ha_ndbcluster.cc:
  Auto merged
sql/sql_partition.cc:
  Auto merged

into  c-0c0be253.1238-1-64736c10.cust.bredbandsbolaget.se:/home/pappa/wl2604-push

into  c-0c0be253.1238-1-64736c10.cust.bredbandsbolaget.se:/home/pappa/wl2604-push


sql/ha_ndbcluster.cc:
  Auto merged
sql/ha_ndbcluster.h:
  Auto merged
sql/ha_ndbcluster_binlog.cc:
  Auto merged

sql/log_event.cc:
  Auto merged
sql/log_event.h:
  Auto merged
sql/sql_class.cc:
  Manual merge (one of the changes was incomplete).

sql/ha_ndbcluster.cc:
  Additional fixes for WL#1892, disable autodiscover during add/drop index
sql/ha_ndbcluster.h:
  Additional fixes for WL#1892, disable autodiscover during add/drop index
sql/sql_table.cc:
  Additional fixes for WL#1892, removed double commit + added call to create_handler_files after create/drop index
mysql-test/r/ndb_alter_table_row.result:
  Additional fixes for WL#1892, changed test case
mysql-test/t/ndb_alter_table_row.test:
  Additional fixes for WL#1892, changed test case

partitioned tables in NDB


include/my_sys.h:
  Move packfrm and unpackfrm to mysys
mysql-test/r/ndb_restore.result:
  New test cases
mysql-test/t/ndb_restore.test:
  New test cases
mysys/my_compress.c:
  Moved packfrm and unpackfrm to mysys
sql/ha_ndbcluster.cc:
  Set value of partition function in hidden field for user defined
  partitioning in NDB to handle restore and later on-line reorganize
  of partitions
  To save space value of those functions are limited to 32 bits
sql/ha_partition.cc:
  Use new get_partition_id interface
sql/handler.h:
  Use new get_partition_id interface
sql/mysql_priv.h:
  Moved to mysys
sql/mysqld.cc:
  Minor
sql/opt_range.cc:
  New get_partition_id interface
sql/sql_partition.cc:
  New get_partition_id interface
  Fix error checks of specification of engines in ALTER TABLE
  Moved packfrm and unpackfrm to mysys
sql/sql_table.cc:
  Fixed debug printouts
storage/ndb/include/kernel/ndb_limits.h:
  New constant
storage/ndb/include/kernel/signaldata/DictTabInfo.hpp:
  New table description item
storage/ndb/include/ndb_version.h.in:
  New version specific constant
storage/ndb/include/ndbapi/NdbDictionary.hpp:
  New item in table descriptions
storage/ndb/src/common/debugger/signaldata/DictTabInfo.cpp:
  New item in table descriptions
storage/ndb/src/kernel/blocks/backup/Backup.cpp:
  Write fragment id in backup's log entry
storage/ndb/src/kernel/blocks/backup/BackupFormat.hpp:
  Write fragment id in backup's log entry
storage/ndb/src/kernel/blocks/dbdict/Dbdict.cpp:
  New item in table description
storage/ndb/src/kernel/blocks/dbdict/Dbdict.hpp:
  New item in table description
storage/ndb/src/kernel/blocks/dbdih/DbdihMain.cpp:
  Moved constant
storage/ndb/src/ndbapi/NdbDictionary.cpp:
  New item in table description
storage/ndb/src/ndbapi/NdbDictionaryImpl.cpp:
  New item in table description
storage/ndb/src/ndbapi/NdbDictionaryImpl.hpp:
  New item in table description
storage/ndb/tools/Makefile.am:
  Compress library needed for ndb_restore
storage/ndb/tools/restore/Restore.cpp:
  Handle fragment id and also handle backups from older versions
storage/ndb/tools/restore/Restore.hpp:
  Use fragment id
storage/ndb/tools/restore/consumer.hpp:
  Use fragment id
storage/ndb/tools/restore/consumer_printer.cpp:
  Use fragment id
storage/ndb/tools/restore/consumer_printer.hpp:
  Use fragment id
storage/ndb/tools/restore/consumer_restore.cpp:
  Code to map node groups if new cluster has different set of
  node groups from original cluster
  Very simple search and replace parser of partition syntax in frm file
  Fix settings of partition id properly using fragment id and hidden
  field in tables
storage/ndb/tools/restore/consumer_restore.hpp:
  Changed function headers and new one for mapping node groups
storage/ndb/tools/restore/consumer_restorem.cpp:
  Use fragment id
storage/ndb/tools/restore/restore_main.cpp:
  New parameter to set node group map, parser for this parameter

Optimised version of ADD/DROP/REORGANIZE partitions for
non-NDB storage engines.
New syntax to handle REBUILD/OPTIMIZE/ANALYZE/CHECK/REPAIR partitions
Quite a few bug fixes


include/thr_lock.h:
  New method to downgrade locks from TL_WRITE_ONLY
  Possibility to upgrade lock while aborting locks
mysql-test/r/ndb_autodiscover.result:
  Fix for lowercase and that all NDB tables are now partitioned
mysql-test/r/ndb_bitfield.result:
  Fix for lowercase and that all NDB tables are now partitioned
mysql-test/r/ndb_gis.result:
  Fix for lowercase and that all NDB tables are now partitioned
mysql-test/r/ndb_partition_key.result:
  New test case
mysql-test/r/partition.result:
  New test case
mysql-test/r/partition_error.result:
  New test case
mysql-test/r/partition_mgm_err.result:
  Fix of test case results
mysql-test/t/disabled.def:
  partition_03ndb still has bug
mysql-test/t/ndb_partition_key.test:
  New test cases for new functionality and bugs
mysql-test/t/partition.test:
  New test cases for new functionality and bugs
mysql-test/t/partition_error.test:
  New test cases for new functionality and bugs
mysql-test/t/partition_mgm_err.test:
  New test cases for new functionality and bugs
mysys/thr_lock.c:
  New method to downgrade TL_WRITE_ONLY locks
  Possibility to specify if locks are to be upgraded at abort locks
sql/ha_archive.cc:
  New handlerton methods
sql/ha_berkeley.cc:
  New handlerton methods
sql/ha_blackhole.cc:
  New handlerton methods
sql/ha_federated.cc:
  New handlerton methods
sql/ha_heap.cc:
  New handlerton methods
sql/ha_innodb.cc:
  New handlerton methods
sql/ha_myisam.cc:
  New handlerton methods
sql/ha_myisammrg.cc:
  New handlerton methods
sql/ha_ndbcluster.cc:
  New handlerton methods
  Moved out packfrm and unpackfrm methods
  Adapted many parts to use table_share instead of table->s
  Ensured that .ndb file uses filename and not tablename
  according to new encoding of names (WL 1324)
  All NDB tables are partitioned and set up partition info
  Fixed such that tablenames use tablenames and not filenames in NDB
  NDB uses auto partitioning for ENGINE=NDB tables
  Warning for very large tables
  Set RANGE data
  Set LIST data
  New method to set-up partition info
  Set Default number of partitions flag
  Set linear hash flag
  Set node group array
  Set number of fragments
  Set max rows
  Set tablespace names
  New method to get number of partitions of table to use at open table
sql/ha_ndbcluster.h:
  Removed partition_flags and alter_table_flags from handler class
  A couple of new and changed method headers
sql/ha_ndbcluster_binlog.cc:
  Use new method headers
sql/ha_partition.cc:
  New handlerton methods
  Lots of new function headers
  Use #P# as separator between table name and partition name and
  #SP# as separator between partition name and subpartition name
  Use filename encoding for files both of table name part and of
  partition name parts
  New method to drop partitions based on partition state
  New method to rename partitions based on partition state
  New methods to optimize, analyze, check and repair partitions
  New methods to optimize, analyze, check and repair table
  Helper method to create new partition, open it and external lock
  it, not needed to lock it internally since no one else knows about
  it yet.
  Cleanup method at error for new partitions
  New methods to perform bulk of work at ADD/REORGANIZE partitions
  (change_partitions, copy_partitions)
sql/ha_partition.h:
  New methods and variables
  A few dropped ones and a few changed ones
sql/handler.cc:
  Handlerton interface changes
  New flag to open_table_from_share
sql/handler.h:
  New alter_table_flags
  New partition flags
  New partition states
  More states for default handling
  Lots of new, dropped and changed interfaces
sql/lex.h:
  Added REBUILD and changed name of REORGANISE to REORGANIZE
sql/lock.cc:
  Method to downgrade locks
  Able to specify if locks upgraded on abort locks
sql/log.cc:
  New handlerton methods
sql/mysql_priv.h:
  Lots of new interfaces
sql/share/errmsg.txt:
  Lots of new, dropped and changed error messages
sql/sql_base.cc:
  Adapted to new method headers
  New method to abort and upgrade lock
  New method to close open tables and downgrade lock
  New method to wait for completed table
sql/sql_lex.h:
  New flags
sql/sql_partition.cc:
  Return int instead of bool in get_partition_id
  More defaults handling
  Make use of new mem_alloc_error method
  More work on function headers
  Changes to generate partition syntax to cater for intermediate
  partition states
  Lots of new code with large comments describing new features for
  Partition Management:
  ADD/DROP/REORGANIZE/OPTIMIZE/ANALYZE/CHECK/REPAIR partitions
sql/sql_show.cc:
  Minors
sql/sql_table.cc:
  Moved a couple of methods
  New methods to copy create lists and key lists
  for use with mysql_prepare_table
  New method to write frm file
  New handling of handlers with auto partitioning
  Fix CREATE TABLE LIKE
  Moved code for ADD/DROP/REORGANIZE partitions
  Use handlerton method for alter_table_flags
sql/sql_yacc.yy:
  More memory alloc error checks
  New syntax for REBUILD, ANALYZE, CHECK, OPTIMIZE, REPAIR partitions
sql/table.cc:
  Fix length of extra part to be 4 bytes
  Partition state introduced in frm file
sql/table.h:
  Partition state introduced
sql/unireg.cc:
  Partition state introduced
  Default partition
storage/csv/ha_tina.cc:
  New handlerton methods
storage/example/ha_example.cc:
  New handlerton methods
storage/ndb/include/kernel/ndb_limits.h:
  RANGE DATA
storage/ndb/include/kernel/signaldata/AlterTable.hpp:
  New interfaces in ALTER TABLE towards NDB kernel
storage/ndb/include/kernel/signaldata/DiAddTab.hpp:
  New section
storage/ndb/include/kernel/signaldata/DictTabInfo.hpp:
  Lots of new parts of table description
storage/ndb/include/kernel/signaldata/LqhFrag.hpp:
  tablespace id specified in LQHFRAGREQ
storage/ndb/include/ndbapi/NdbDictionary.hpp:
  Lots of new methods in NDB dictionary
storage/ndb/src/common/debugger/signaldata/DictTabInfo.cpp:
  Lots of new variables in table description
storage/ndb/src/kernel/blocks/dbdict/Dbdict.cpp:
  Lots of new variables in table description
storage/ndb/src/kernel/blocks/dbdict/Dbdict.hpp:
  Lots of new variables in table description
storage/ndb/src/kernel/blocks/dblqh/DblqhMain.cpp:
  New error insertion
storage/ndb/src/kernel/blocks/dbtup/DbtupMeta.cpp:
  a few extra jam's
storage/ndb/src/ndbapi/NdbBlob.cpp:
  Changes to definition of blob tables
storage/ndb/src/ndbapi/NdbDictionary.cpp:
  Lots of new stuff in NDB dictionary
storage/ndb/src/ndbapi/NdbDictionaryImpl.cpp:
  Lots of new stuff in NDB dictionary
storage/ndb/src/ndbapi/NdbDictionaryImpl.hpp:
  Lots of new stuff in NDB dictionary
storage/ndb/test/ndbapi/test_event.cpp:
  removed use of methods no longer in existence
storage/ndb/tools/restore/Restore.cpp:
  Renamed variable