Mostly needed for Monty for him getting notion what needed for triggers 
from new .FRM format. 

Things to be done:
- Right placement of trigger's invocations
- Right handling of errors in triggers (including transaction rollback)
- Support for priviliges
- Right handling of DROP/RENAME table (hope that it will be handled automatically
  with merging of .TRG into .FRM file)
- Saving/restoring some information critical for trigger creation and replication
  with their definitions (e.g. sql_mode, creator, ...)
- Replication

Already has some known bugs so probably not for general review.


include/mysqld_error.h:
  Added trigger related error codes.
sql/Makefile.am:
  Added sql_trigger.* files to list of sources from which mysqld is built.
sql/item.cc:
  Added Item_trigger_field class representing field of new/old version of row which is 
  inserted/updated/deleted and for which trigger is invoked.
sql/item.h:
  Added enums for describing trigger properties. (Here because of dependencies).
  Added Item_trigger_field class representing field of new/old version of row which is 
  inserted/updated/deleted and for which trigger is invoked.
sql/item_func.cc:
  Added Item_func_set_user_var::print_as_stmt() for printing of assignment to ser variable
  from stored procedures.
  Added comment clarifying why we don't need set no_send_ok when calling stored functions.
sql/item_func.h:
  Added Item_func_set_user_var::print_as_stmt() for printing of assignment to ser variable
  from stored procedures.
sql/lex.h:
  Symbols used in statements defining triggers were added.
sql/mysql_priv.h:
  Exported some functions needed for triggers implementation.
sql/parse_file.cc:
  Cleaned up FILE_OPTIONS_STRLIST handling (needed for triggers).
sql/parse_file.h:
  Cleaned up FILE_OPTIONS_STRLIST handling (needed for triggers).
sql/share/czech/errmsg.txt:
  Added trigger related error messages.
sql/share/danish/errmsg.txt:
  Added trigger related error messages.
sql/share/dutch/errmsg.txt:
  Added trigger related error messages.
sql/share/english/errmsg.txt:
  Added trigger related error messages.
sql/share/estonian/errmsg.txt:
  Added trigger related error messages.
sql/share/french/errmsg.txt:
  Added trigger related error messages.
sql/share/german/errmsg.txt:
  Added trigger related error messages.
sql/share/greek/errmsg.txt:
  Added trigger related error messages.
sql/share/hungarian/errmsg.txt:
  Added trigger related error messages.
sql/share/italian/errmsg.txt:
  Added trigger related error messages.
sql/share/japanese/errmsg.txt:
  Added trigger related error messages.
sql/share/korean/errmsg.txt:
  Added trigger related error messages.
sql/share/norwegian-ny/errmsg.txt:
  Added trigger related error messages.
sql/share/norwegian/errmsg.txt:
  Added trigger related error messages.
sql/share/polish/errmsg.txt:
  Added trigger related error messages.
sql/share/portuguese/errmsg.txt:
  Added trigger related error messages.
sql/share/romanian/errmsg.txt:
  Added trigger related error messages.
sql/share/russian/errmsg.txt:
  Added trigger related error messages.
sql/share/serbian/errmsg.txt:
  Added trigger related error messages.
sql/share/slovak/errmsg.txt:
  Added trigger related error messages.
sql/share/spanish/errmsg.txt:
  Added trigger related error messages.
sql/share/swedish/errmsg.txt:
  Added trigger related error messages.
sql/share/ukrainian/errmsg.txt:
  Added trigger related error messages.
sql/sp_head.cc:
  sp_head::init_strings(): added support for triggers 
    (we don't have most of strings for them)
  sp_head::execute_function(): triggers don't require RETURN
  sp_head::reset_lex(): added propagation of trigger properties to LEX used for 
   parsing of statements composing trigger body.
  Added two more SP instructions:
  - sp_instr_set_user_var for setting user variables in stored functions and triggers
    (we can't use sp_instr_stmt and "SET @A:=..." statement since it will close open 
    tables and thus break execution of calling statement.
  - sp_instr_set_trigger_field for assignment to fields of row being updated/inserted in
    triggers
sql/sp_head.h:
  Added new type of sp_head object - TYPE_ENUM_TRIGGER
  Added two more SP instructions:
  - sp_instr_set_user_var for setting user variables in stored functions and triggers
    (we can't use sp_instr_stmt and "SET @A:=..." statement since it will close open 
    tables and thus break execution of calling statement.
  - sp_instr_set_trigger_field for assignment to fields of row being updated/inserted in
    triggers
sql/sql_base.cc:
  Now freeing memory occupied by trigger related structures when closing tables.
  open_unireg_entry(): added loading of triggers for table.
  find_field_in_real_table() is now public since it required by Item_trigger_field in item.cc
sql/sql_delete.cc:
  Added triggers invocation for DELETE (should be fixed for sure :))
sql/sql_insert.cc:
  Added triggers invocation for INSERT (should be fixed for sure :))
sql/sql_lex.cc:
  Added trg_new_row_fake_var variable pointer to which is used for distinguishing between
  assignment to NEW row field (when parsing trigger definition) and structured variable.
  Added initialization of LEX->trg_table to lex_start(). (When triggers are parsed during
  opening of table it points to table object.)
sql/sql_lex.h:
  Added trigger related commands.
  Added st_trg_chistics structure describing properties of trigger being created
  (as struct and as LEX member).
  Added trg_new_row_fake_var variable pointer to which is used for
  distinguishing between assignment to NEW row field (when parsing trigger definition)
  and structured variable.
  Added LEX::trg_table which points to table being opened when we are parsing trigger
  definition while opening table.
sql/sql_parse.cc:
  Added support for CREATE/DROP TRIGGER commands.
sql/sql_table.cc:
  Cleanup. close_cached_table() always returns 0 and its result is not analyzed in most
  places so chenged its return type to void.
sql/sql_update.cc:
  Added triggers invocation for UPDATE (should be fixed for sure :))
sql/sql_yacc.yy:
  Added support for CREATE/DROP TRIGGER statements.
  Added support for OLD/NEW row identifiers in trigger.
  Made assignment to user variables not to break execution of stored function or trigger.
sql/table.h:
  Added TABLE::triggers member representing triggers for this table.

into sanja.is.com.ua:/home/bell/mysql/bk/work-5.0

into mysql.com:/space/my/mysql-5.0

   libmysqld project files

into hegel.txg:/home/miguel/bk/mysql-5.0

BitKeeper/etc/ignore:
  Added libmysqld/sql_view.cc to the ignore list

into sanja.is.com.ua:/home/bell/mysql/bk/work-view3-5.0

sql/opt_range.cc:
  Fix for unreferenced local variable, cast and indirection to different types
sql/sp_head.cc:
  Fix for unreferenced variables and cast
sql/sql_acl.cc:
  Fix for unreferenced variable
sql/sql_db.cc:
  Fix for unreferenced variable and cast
sql/sql_insert.cc:
  Fix for cast and redifinition of variable declared  i (VC++ bug)
sql/sql_parse.cc:
  Fix for cast
sql/sql_update.cc:
  Fix for cast

sql/sql_insert.cc:
  Fixed typo which caused non-debug builds to fail.

sql/item_timefunc.cc:
  Fix warnings which popped up during windows builds.

into sanja.is.com.ua:/home/bell/mysql/bk/work-view3-5.0


sql/set_var.cc:
  Auto merged

two TABLE_LIST copy eliminated


include/mysqld_error.h:
  errors of view
libmysqld/Makefile.am:
  new view file
mysql-test/r/connect.result:
  SHOW TABLE show type of table
mysql-test/r/ctype_recoding.result:
  SHOW TABLE show type of table
mysql-test/r/drop.result:
  SHOW TABLE show type of table
mysql-test/r/grant.result:
  new two privileges (CRETEA|SHOW VIEW)
mysql-test/r/lowercase_table.result:
  SHOW TABLE show type of table
mysql-test/r/ps_1general.result:
  SHOW TABLE show type of table
mysql-test/r/rename.result:
  SHOW TABLE show type of table
mysql-test/r/rpl000009.result:
  SHOW TABLE show type of table
mysql-test/r/rpl_error_ignored_table.result:
  SHOW TABLE show type of table
mysql-test/r/select.result:
  SHOW TABLE show type of table
mysql-test/r/system_mysql_db.result:
  SHOW TABLE show type of table
  new two privileges (CRETEA|SHOW VIEW)
mysql-test/t/system_mysql_db_fix.test:
  removing all system tables
scripts/mysql_fix_privilege_tables.sql:
  new two privileges (CRETEA|SHOW VIEW)
sql/Makefile.am:
  new VIEW related file
sql/ha_myisammrg.cc:
  two TABLE_LIST copy eliminated
sql/item.cc:
  VIEW
sql/item.h:
  VIEW
sql/item_subselect.cc:
  VIEW
sql/item_subselect.h:
  VIEW
sql/lex.h:
  VIEW
sql/lock.cc:
  VIEW
sql/mysql_priv.h:
  VIEW
sql/mysqld.cc:
  VIEW
  new parameter - sql_updatable_view_key
sql/opt_sum.cc:
  two TABLE_LIST copy eliminated
sql/set_var.cc:
  new parameter - sql_updatable_view_key
sql/share/czech/errmsg.txt:
  errors messages of views
sql/share/danish/errmsg.txt:
  errors messages of views
sql/share/dutch/errmsg.txt:
  errors messages of views
sql/share/english/errmsg.txt:
  errors messages of views
sql/share/estonian/errmsg.txt:
  errors messages of views
sql/share/french/errmsg.txt:
  errors messages of views
sql/share/german/errmsg.txt:
  errors messages of views
sql/share/greek/errmsg.txt:
  errors messages of views
sql/share/hungarian/errmsg.txt:
  errors messages of views
sql/share/italian/errmsg.txt:
  errors messages of views
sql/share/japanese/errmsg.txt:
  errors messages of views
sql/share/korean/errmsg.txt:
  errors messages of views
sql/share/norwegian-ny/errmsg.txt:
  errors messages of views
sql/share/norwegian/errmsg.txt:
  errors messages of views
sql/share/polish/errmsg.txt:
  errors messages of views
sql/share/portuguese/errmsg.txt:
  errors messages of views
sql/share/romanian/errmsg.txt:
  errors messages of views
sql/share/russian/errmsg.txt:
  errors messages of views
sql/share/serbian/errmsg.txt:
  errors messages of views
sql/share/slovak/errmsg.txt:
  errors messages of views
sql/share/spanish/errmsg.txt:
  errors messages of views
sql/share/swedish/errmsg.txt:
  errors messages of views
sql/share/ukrainian/errmsg.txt:
  errors messages of views
sql/slave.cc:
  two TABLE_LIST copy eliminated
sql/sp.cc:
  VIEW
sql/sql_acl.cc:
  VIEW
sql/sql_acl.h:
  VIEW
sql/sql_base.cc:
  VIEW
sql/sql_cache.cc:
  two TABLE_LIST copy eliminated
sql/sql_class.h:
  VIEW
sql/sql_db.cc:
  two TABLE_LIST copy eliminated
sql/sql_delete.cc:
  VIEW
sql/sql_derived.cc:
  VIEW
sql/sql_handler.cc:
  two TABLE_LIST copy eliminated
sql/sql_help.cc:
  two TABLE_LIST copy eliminated
sql/sql_insert.cc:
  VIEW
sql/sql_lex.cc:
  VIEW
sql/sql_lex.h:
  VIEW
sql/sql_load.cc:
  VIEW
sql/sql_olap.cc:
  VIEW
sql/sql_parse.cc:
  two TABLE_LIST copy eliminated
  VIEW
sql/sql_prepare.cc:
  VIEW
sql/sql_rename.cc:
  two TABLE_LIST copy eliminated
sql/sql_select.cc:
  VIEW
sql/sql_show.cc:
  VIEW
sql/sql_table.cc:
  VIEW
sql/sql_union.cc:
  VIEW
sql/sql_update.cc:
  VIEW
sql/sql_yacc.yy:
  VIEW
sql/table.cc:
  VIEW
sql/table.h:
  VIEW
sql/tztime.cc:
  two TABLE_LIST copy eliminated
sql/unireg.h:
  VIEW
tests/client_test.c:
  VIEW

into mysql.com:/home/mysql_src/mysql-5.0

Replication of charsets and timezones should shortly be changed to not need ONE_SHOT
(but 5.0 should still be able to read it, to be able to replicate 4.1 masters).


mysql-test/r/rpl_charset.result:
  result update after the merge (only binlog positions differ from 4.1)
mysql-test/r/rpl_timezone.result:
  result update after the merge (only binlog positions differ from 4.1)
sql/log.cc:
  use ONE_SHOT to save charset and TZ info in the binlog (until I rewrite this soon)
sql/set_var.cc:
  Even if in the future, 5.0 will not use ONE_SHOT in ITS binlog, it must still be able to interpret it, to make 4.1->5.0 replication possible
sql/set_var.h:
  Even if in the future, 5.0 will not use ONE_SHOT in ITS binlog, it must still be able to interpret it, to make 4.1->5.0 replication possible

myisam/sort.c:
  warning fixed
sql/ha_myisam.h:
  not necessary

sql/mysql_priv.h:
  Auto merged
sql/mysqld.cc:
  Auto merged
sql/sql_lex.cc:
  Auto merged
sql/sql_lex.h:
  Auto merged
sql/sql_select.cc:
  Auto merged
sql/table.h:
  Auto merged

Note: The following tests fails
- fulltext (Sergei has promised to fix)
- rpl_charset (Guilhem should fix)
- rpl_timezone (Dimitray has promised to fix)

Sanja needs to check out the calling of close_thread_tables() in sp_head.cc


myisam/mi_check.c:
  After merge fix
myisam/sort.c:
  After merge fix
mysql-test/mysql-test-run.sh:
  Export master socket to mysqltest
mysql-test/r/func_group.result:
  Make result repeatable
mysql-test/r/mysqlbinlog.result:
  After merge fix
mysql-test/r/ps_1general.result:
  After merge fix
mysql-test/r/ps_2myisam.result:
  After merge fix
mysql-test/r/ps_3innodb.result:
  After merge fix
mysql-test/r/ps_4heap.result:
  After merge fix
mysql-test/r/ps_5merge.result:
  After merge fix
mysql-test/r/ps_6bdb.result:
  After merge fix
mysql-test/r/rpl_flush_log_loop.result:
  After merge fix
mysql-test/r/rpl_replicate_do.result:
  After merge fix
mysql-test/r/rpl_temporary.result:
  After merge fix
mysql-test/r/rpl_timezone.result:
  After merge fix
  Note that this test fails now (Dimitry has promised to fix this)
mysql-test/r/rpl_user_variables.result:
  After merge fix
mysql-test/r/select.result:
  After merge fix
mysql-test/r/sp-error.result:
  After merge fix
mysql-test/r/sp-security.result:
  After merge fix
mysql-test/r/sp.result:
  After merge fix
mysql-test/r/user_var.result:
  After merge fix
mysql-test/r/variables.result:
  After merge fix
mysql-test/t/alter_table.test:
  After merge fix
mysql-test/t/derived.test:
  After merge fix
mysql-test/t/func_group.test:
  Make result repeatable
mysql-test/t/grant_cache.test:
  Use MASTER_MYSOCK instead of master.sock
mysql-test/t/multi_update.test:
  Use MASTER_MYSOCK instead of master.sock
mysql-test/t/rpl000015.test:
  Use MASTER_MYSOCK instead of master.sock
mysql-test/t/rpl000017.test:
  Use MASTER_MYSOCK instead of master.sock
mysql-test/t/rpl000018.test:
  Use MASTER_MYSOCK instead of master.sock
mysql-test/t/rpl_charset.test:
  After merge fix
mysql-test/t/rpl_heap.test:
  Use MASTER_MYSOCK instead of master.sock
mysql-test/t/rpl_rotate_logs.test:
  Use MASTER_MYSOCK instead of master.sock
mysql-test/t/sp-error.test:
  after merge fix
mysql-test/t/sp-security.test:
  after merge fix
mysql-test/t/user_var.test:
  after merge fix
scripts/mysql_fix_privilege_tables.sh:
  This can now be exectued from the source distribution
sql/handler.cc:
  Cleanup
sql/handler.h:
  More debugging
sql/item.h:
  Indentation fixes
sql/item_cmpfunc.cc:
  After merge fixes
sql/opt_range.cc:
  After merge fixes
sql/opt_range.h:
  After merge fixes
sql/sp.cc:
  After merge fixes
sql/sp_head.cc:
  Remove closing of thread tables in a SP function as this caused a core dump.
  (Has to be fixed better)
sql/sql_base.cc:
  More debugging
sql/sql_handler.cc:
  After merge fixes
  (We have to call ha_index_or_rnd_end() before calling close_thread_table())
sql/sql_parse.cc:
  More debugging
sql/sql_prepare.cc:
  After merge fixes
sql/sql_select.cc:
  After merge fixes

BitKeeper/etc/logging_ok:
  auto-union
client/mysqltest.c:
  Auto merged
configure.in:
  Auto merged
include/my_global.h:
  Auto merged
mysql-test/r/bdb.result:
  Auto merged
mysql-test/r/connect.result:
  Auto merged
mysql-test/r/multi_update.result:
  Auto merged
mysql-test/r/show_check.result:
  Auto merged
mysql-test/r/system_mysql_db.result:
  Auto merged
mysql-test/t/multi_update.test:
  Auto merged
sql/ha_berkeley.cc:
  Auto merged
sql/ha_berkeley.h:
  Auto merged
sql/ha_heap.h:
  Auto merged
sql/ha_innodb.h:
  Auto merged
sql/handler.h:
  Auto merged
sql/item_cmpfunc.cc:
  Auto merged
sql/log.cc:
  Auto merged
sql/mysql_priv.h:
  Auto merged
sql/mysqld.cc:
  Auto merged
sql/set_var.cc:
  Auto merged
sql/sql_acl.cc:
  Auto merged
sql/sql_class.cc:
  Auto merged
sql/sql_db.cc:
  Auto merged
sql/sql_parse.cc:
  Auto merged
sql/sql_show.cc:
  Auto merged
sql/sql_table.cc:
  Auto merged
sql/sql_update.cc:
  Auto merged
sql/sql_yacc.yy:
  Auto merged
sql/opt_range.cc:
  Merge with 4.1
  true -> TRUE and false -> FALSE

mysys/my_init.c:
  Extra debugging
sql/mysqld.cc:
  Added comment
sql/sql_parse.cc:
  Removed unneeded info
vio/viosocket.c:
  Added assert.
  Don't close already closed files

sql/sql_show.cc:
  Auto merged
sql/mysql_priv.h:
  SCCS merged

into serg.mylan:/usr/home/serg/Abk/mysql-4.0

into serg.mylan:/usr/home/serg/Abk/mysql-5.0

tests/client_test.c:
  typos fixed

charged sql/sql_db.cc only
(
changed length in mysql_create_db to path_len
so as it was calculated in the first unpack_dirname
in my previous fix for Bug #4378
'"create database IF NOT EXISTS thing" returns an error'
)


sql/sql_db.cc:
  manual merge 
  (
  changed length in mysql_create_db to path_len
  so as it was calculated in the first unpack_dirname
  in my previous fix for Bug #4378
  '"create database IF NOT EXISTS thing" returns an error'
  )

as after effect of fix for Bug #4378 
'"create database IF NOT EXISTS thing" returns an error' 

(avoided an unpack_dirname and 
 changed strcat into strmake)


sql/sql_db.cc:
  added an optimization in mysql_create_db 
  (avoided an unpack_dirname and 
   changed strcat into strmake)

  fix MYI copying with scp
  safer tempfile creation


scripts/mysqlhotcopy.sh:
  fix MYI copying with scp
  safer tempfile creation

into mysql.com:/home/my/mysql-4.1

Some bug fixes to last pushed code


mysql-test/mysql-test-run.sh:
  Fix for new valgrind (2.1.1)
mysql-test/r/bdb.result:
  Updated results
mysql-test/t/ps_1general.test:
  removed wrong error condition
sql/ha_berkeley.cc:
  Fix for index_flags() in new code
sql/item_strfunc.cc:
  Cleanup (fixed indentation, removed short variable names)
sql/mysql_priv.h:
  Cleanup of db option cacheing
sql/mysqld.cc:
  Cleanup of db option cacheing
sql/sql_db.cc:
  Cleanup of db option cacheing
sql/sql_parse.cc:
  Cleanup of db option cacheing
sql/sql_table.cc:
  sprintf -> strxmov
sql/table.cc:
  key_read should be tested on key parts, not the whole key

Build-tools/Bootstrap:
  Auto merged
Build-tools/Do-compile:
  Auto merged
mysql-test/r/lowercase_table2.result:
  Auto merged
mysql-test/r/system_mysql_db.result:
  Auto merged
mysql-test/r/system_mysql_db_refs.result:
  Auto merged
mysql-test/t/system_mysql_db_fix-master.opt:
  Auto merged
mysql-test/t/system_mysql_db.test:
  Auto merged

into mysql.com:/home/my/mysql-4.0

  Define cxa_pure_virtual to print error message and DBUG_ASSERT:
  calls to pure virtual methods should not go unnoticed.


include/my_global.h:
  Define cxa_pure_virtual to print error message and DBUG_ASSERT:
  calls to pure virtual methods should not go unnoticed.

  Call my_md5sum with path


Build-tools/Do-compile:
  Call my_md5sum with path