#5860 "Multi-table UPDATE does not activate update triggers"
 #6812 "Triggers are not activated for INSERT ... SELECT"
 #8755 "Trigger is not activated by LOAD DATA".
This patch also implements proper handling of triggers for special forms
of insert like REPLACE or INSERT ... ON DUPLICATE KEY UPDATE. 
Also now we don't call after trigger in case when we have failed to
inserted/update or delete row. Trigger failure should stop statement
execution.

I have not properly tested handling of errors which happen inside of
triggers in this patch, since it is simplier to do this once we will be
able to access tables from triggers.


mysql-test/r/trigger.result:
  Added tests for triggers behavior for various non-standard forms of
  INSERT such as REPLACE and INSERT ... ON DUPLICATE KEY UPDATE.
  Also added tests for bugs #5860 "Multi-table UPDATE does not activate
  update triggers", #6812 "Triggers are not activated for INSERT ... SELECT"
  and #8755 "Trigger is not activated by LOAD DATA".
mysql-test/t/trigger.test:
  Added tests for triggers behavior for various non-standard forms of
  INSERT such as REPLACE and INSERT ... ON DUPLICATE KEY UPDATE.
  Also added tests for bugs #5860 "Multi-table UPDATE does not activate
  update triggers", #6812 "Triggers are not activated for INSERT ... SELECT"
  and #8755 "Trigger is not activated by LOAD DATA".
sql/item.cc:
  Since it turned out that at trigger loading time we can't say in which
  buffer TABLE::record[0] or record[1] old version of row will be stored
  we have to change our approach to binding of Item_trigger_field to
  Field instances.
  Now after trigger parsing (in Item_trigger_field::setup_table()) we only
  find index of proper Field in the TABLE::field array. Then before trigger
  is invoked we set Table_triggers_list::old_field/new_field so they point
  to arrays holding Field instances bound to buffers with proper row
  versions. And as last step in Item_trigger_field::fix_fields() we get
  pointer to Field from those arrays using saved field index.
  
  Item_trigger_field::setup_field()/fix_fields() were changed to implement
  this approach.
sql/item.h:
  Since it turned out that at trigger loading time we can't say in which
  buffer TABLE::record[0] or record[1] old version of row will be stored
  we have to change our approach to binding of Item_trigger_field to
  Field instances.
  Now after trigger parsing (in Item_trigger_field::setup_table()) we only
  find index of proper Field in the TABLE::field array. Then before trigger
  is invoked we set Table_triggers_list::old_field/new_field so they point
  to arrays holding Field instances bound to buffers with proper row
  versions. And as last step in Item_trigger_field::fix_fields() we get
  pointer to Field from those arrays using saved field index.
  
  Item_trigger_field:
  - Added field_idx member to store index of Field object corresponding to
    this Item in TABLE::field array.
  - Added triggers member to be able to access to parent Table_trigger_list
    object from fix_fields() method.
  - setup_field() no longer needs to know for which type of event this
    trigger is, since it does not make decision Field for which buffer
    (record[0] or record[1] is appropriate for this Item_trigger_field)
sql/mysql_priv.h:
  Added fill_record_n_invoke_before_triggers() methods. They are simple
  wrappers around fill_record() which invoke proper before trigger right
  after filling record with values.
sql/sql_base.cc:
  Added fill_record_n_invoke_before_triggers() methods. They are simple
  wrappers around fill_record() which invoke proper before trigger right
  after filling record with values.
sql/sql_delete.cc:
  mysql_delete():
    Now we stop statement execution if one of triggers failed, we also
    don't execute after delete trigger if we failed to delete row from
    the table (We also pass information about which buffer contains old
    version of row to process_triggers()).
  multi_delete::send_data()/do_deletes():
    Now we also invoke triggers in case of multi-delete.
sql/sql_insert.cc:
  mysql_insert():
    Moved invocation of before triggers to fill_record_n_invoke_before_triggers()
    method. After triggers are now executed as part of write_record().
    (as nice side effect now we also stop statement execution if one of
    triggers fail).
  write_record():
    Invoke after insert trigger after performing insert. Also invoke proper
    triggers if insert is converted to update or conflicting row is deleted.
    Cleaned up error handling a bit - no sense to report error via
    handler::print_error if it was not generated by handler method and
    was reported before.
    Also now we will execute after trigger only if we really have written
    row to the table. 
  select_insert::send_data()/store_values():
    We should also execute INSERT triggers for INSERT ... SELECT statement.
sql/sql_load.cc:
  read_fixed_length()/read_sep_field():
    We should execute INSERT triggers when processing LOAD DATA statement.
    Small cleanup in auto-increment related code. Also moved check for
    thd->killed which is used to abort LOAD DATA in case of problems
    in 'traditional' mode to better place..
sql/sql_trigger.cc:
  Since it turned out that at trigger loading time we can't say in which
  buffer TABLE::record[0] or record[1] old version of row will be stored
  we have to change our approach to binding of Item_trigger_field to
  Field instances.
  Now after trigger parsing (in Item_trigger_field::setup_table()) we only
  find index of proper Field in the TABLE::field array. Then before trigger
  is invoked we set Table_triggers_list::old_field/new_field so they point
  to arrays holding Field instances bound to buffers with proper row
  versions. And as last step in Item_trigger_field::fix_fields() we get
  pointer to Field from those arrays using saved field index.
  
  Table_triggers_list methods were changed to implement this approach
  (see also comments for sql_trigger.h).
sql/sql_trigger.h:
  Since it turned out that at trigger loading time we can't say in which
  buffer TABLE::record[0] or record[1] old version of row will be stored
  we have to change our approach to binding of Item_trigger_field to
  Field instances.
  Now after trigger parsing (in Item_trigger_field::setup_table()) we only
  find index of proper Field in the TABLE::field array. Then before trigger
  is invoked we set Table_triggers_list::old_field/new_field so they point
  to arrays holding Field instances bound to buffers with proper row
  versions. And as last step in Item_trigger_field::fix_fields() we get
  pointer to Field from those arrays using saved field index.
  
  Changed Table_triggers_list to implement this new approach:
  - Added record1_field member to store array of Field objects bound
    to TABLE::record[1] buffer (instead of existing old_field member)
  - Added new_field member and changed meaning of old_field member.
    During trigger execution they should point to arrays of Field objects
    bound to buffers holding new and old versions of row respectively.
  - Added 'table' member to be able to get access to TABLE instance
    (for which this trigger list object was created) from process_triggers()
    method.
  - Now process_triggers() method sets old_field and new_field members
    properly before executing triggers body (basing on new 
    old_row_is_record1 parameter value).
  - Renamed prepare_old_row_accessors_method() to prepare_record1_accessors()
  
  Also added has_before_update_triggers() method which allows to check
  whenever any before update triggers exist for table.
sql/sql_update.cc:
  mysql_update():
    Now we invoke before triggers in fill_record_n_invoke_before_triggers()
    method. Also now we abort statement execution when one of triggers fail.
  safe_update_on_fly():
    When we are trying to understand if we can update first table in multi
    update on the fly we should take into account that BEFORE UPDATE
    trigger can change field values.
  multi_update::send_data()/do_updates()
    We should execute proper triggers when doing multi-update
    (in both cases when we do it on the fly and using temporary tables).

mysys/default.c:
  if we check for error, we should set it.

select, gis & gis-tree tests fails at the moment, but
I will push this CS because it was tested before and I'm absolutely
sure it's right.


mysql-test/r/strict.result:
  fix (Bugs #8295 and #8296: varchar and varbinary conversion)
mysql-test/r/type_blob.result:
  fix (Bugs #8295 and #8296: varchar and varbinary conversion)
mysql-test/t/strict.test:
  fix (Bugs #8295 and #8296: varchar and varbinary conversion)
sql/sql_table.cc:
  fix (Bugs #8295 and #8296: varchar and varbinary conversion):
  1. fon't convert datatypes if it's strict mode;
  2. better warning.

into mysql.com:/media/sda1/mysql/mysql-5.0-9478


sql/sql_prepare.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged

(crash on attempt to re-execute a statement with an open cursor) + 
post-review fixes.


include/errmsg.h:
  Add a special error message when we attempt to mysql_stmt_fetch
  from a statement which has no result set.
libmysql/errmsg.c:
  Error message text for CR_NO_RESULT_SET
libmysql/libmysql.c:
  Move the code which frees result sets on client and closes the cursor
  on server, resets long data state on client and server.
  This makes one function out of two (mysql_stmt_reset and
  mysql_stmt_free_result), thus aggregating all related reset work
  in one place.
sql-common/client.c:
  Fix one place where we flushed the pending result set of a statement,
  but didn't set unbuffered_fetch_cancelled flag.
sql/share/errmsg.txt:
  Fix format of ER_UNKNOWN_STMT_HANDLER error message (needs to
  be fixed separately in 4.1). Add two new error messages 
  for the case when we fetch from when there is no cursor
  and for the case when we attempt to execute a statement while there is
  a cursor.
sql/sql_prepare.cc:
  Return error when we fetch while there is no open cursor and
  when we call execute while there is a pending cursor.
  Fix mysql_stmt_reset to close the open cursor if there is any.
sql/sql_select.cc:
  free_items and free_root moved to Cursor::close().
sql/sql_select.h:
  A comment added.
tests/mysql_client_test.c:
  A test case for Bug#9478, test the case of mysql_stmt_reset
  called for client-side cached result set and for the case with open cursor.
  All strcpy replaced with strmov (review request).

sql/sql_base.cc:
  Auto merged
sql/sql_insert.cc:
  Auto merged
sql/sql_parse.cc:
  Auto merged
sql/sql_prepare.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
sql/sql_view.cc:
  Auto merged
sql/table.cc:
  Auto merged
sql/table.h:
  Auto merged

  Fixed bug #8528.
  Representation for single-table views was made similar to
  representation for multi-table views.
view.test:
  Added test case for bug #8528.
view.result:
  Added test case for bug #8528. Fixed other test cases.


mysql-test/r/view.result:
  Added test case for bug #8528. Fixed other test cases.
mysql-test/t/view.test:
  Added test case for bug #8528.
sql/sql_base.cc:
  Fixed bug #8528.
  Representation for single-table views was made similar to
  representation for multi-table views.
sql/sql_delete.cc:
  Fixed bug #8528.
  Representation for single-table views was made similar to
  representation for multi-table views.
sql/sql_insert.cc:
  Fixed bug #8528.
  Representation for single-table views was made similar to
  representation for multi-table views.
sql/sql_parse.cc:
  Fixed bug #8528.
  Representation for single-table views was made similar to
  representation for multi-table views.
sql/sql_prepare.cc:
  Fixed bug #8528.
  Representation for single-table views was made similar to
  representation for multi-table views.
sql/sql_select.cc:
  Fixed bug #8528.
  Representation for single-table views was made similar to
  representation for multi-table views.
sql/sql_update.cc:
  Fixed bug #8528.
  Representation for single-table views was made similar to
  representation for multi-table views.
sql/sql_view.cc:
  Fixed bug #8528.
  Representation for single-table views was made similar to
  representation for multi-table views.
sql/table.cc:
  Fixed bug #8528.
  Representation for single-table views was made similar to
  representation for multi-table views.
sql/table.h:
  Fixed bug #8528.
  Representation for single-table views was made similar to
  representation for multi-table views.

into quadita2.mysql.com:/nfstmp1/guilhem/mysql-5.0-4ita

into mysql.com:/home/gluh/MySQL/Devel/mysql-5.0


sql/sql_show.cc:
  Auto merged

  additional fix after review

comment change (post-review of "replication of triggers"). Btw date_formats segfaults with --ps-protocol - not caused by my changes though; I'll file a bug report.


sql/sql_trigger.h:
  changing comment

into quadita2.mysql.com:/nfstmp1/guilhem/mysql-5.0-4ita

into ibmlab.site:/home/my/bk/mysql-5.0

BitKeeper/etc/logging_ok:
  auto-union
include/my_global.h:
  Auto merged
ndb/src/kernel/blocks/dbtc/Dbtc.hpp:
  Auto merged
ndb/src/kernel/blocks/dbtc/DbtcMain.cpp:
  Auto merged
ndb/src/mgmapi/mgmapi.cpp:
  Auto merged
ndb/src/ndbapi/NdbIndexOperation.cpp:
  Auto merged
ndb/src/ndbapi/ndberror.c:
  Auto merged
ndb/test/ndbapi/testNodeRestart.cpp:
  Auto merged
ndb/test/run-test/Makefile.am:
  Auto merged
sql/item.h:
  Auto merged
sql/item_func.h:
  Auto merged
sql/item_sum.h:
  Auto merged
sql/sql_udf.h:
  Auto merged
ndb/src/ndbapi/ClusterMgr.cpp:
  SCCS merged

into quadita2.mysql.com:/nfstmp1/guilhem/mysql-5.0-4ita

into neptunus.(none):/home/msvensson/mysql/mysql-5.0


mysql-test/t/range.test:
  Auto merged
sql/item_strfunc.h:
  Auto merged

into neptunus.(none):/home/msvensson/mysql/mysql-4.1

sql/item_strfunc.h:
  Remove the testcode

another column gets rotten value.


mysql-test/r/type_newdecimal.result:
  Added a test case for Bug#10232: update with subquery, precision math,
  another column gets rotten value.
mysql-test/t/type_newdecimal.test:
  Added a test case for Bug#10232: update with subquery, precision math,
  another column gets rotten value.

into mysql.com:/home/psergey/mysql-4.1-bug10095


mysql-test/t/range.test:
  Auto merged

into mysql.com:/home/hf/work/mysql-5.0.clean


BitKeeper/etc/logging_ok:
  auto-union
strings/ctype-sjis.c:
  Auto merged

into mysql.com:/home/hf/work/mysql-4.1.ssj

strings/ctype-sjis.c:
  pos should be decreased
BitKeeper/etc/logging_ok:
  Logging to logging@openlogging.org accepted

into neptunus.(none):/home/msvensson/mysql/mysql-4.1

BUILD/check-cpu:
  Pentium M

include/my_global.h:
  Auto merged
mysql-test/r/ctype_utf8.result:
  Auto merged
mysql-test/r/select.result:
  Auto merged
mysql-test/t/select.test:
  Auto merged
ndb/src/kernel/blocks/dbtc/Dbtc.hpp:
  Auto merged
ndb/src/mgmapi/mgmapi.cpp:
  Auto merged
ndb/src/ndbapi/NdbIndexOperation.cpp:
  Auto merged
ndb/src/ndbapi/ndberror.c:
  Auto merged
ndb/test/ndbapi/testNodeRestart.cpp:
  Auto merged
sql/item.h:
  Auto merged
sql/item_func.h:
  Auto merged
sql/item_strfunc.cc:
  Auto merged
sql/item_sum.h:
  Auto merged
sql/sql_udf.h:
  Auto merged
sql/sql_yacc.yy:
  Auto merged
configure.in:
  Ignore 4.1 version change
ndb/src/kernel/blocks/dbtc/DbtcMain.cpp:
  merge 4.1
ndb/src/ndbapi/ClusterMgr.cpp:
  merge
ndb/test/run-test/Makefile.am:
  merge
sql/mysql_priv.h:
  merge from 4.1
sql/table.cc:
  Merge from 4.1

include/my_global.h:
  Auto merged
ndb/src/cw/cpcd/Process.cpp:
  Auto merged
ndb/src/kernel/error/ErrorReporter.cpp:
  Auto merged
sql/item.h:
  Auto merged
sql/item_func.h:
  Auto merged
sql/item_sum.h:
  Auto merged
sql/sql_udf.h:
  Auto merged

into mysql.com:/home/jonas/src/mysql-5.0

into mysql.com:/home/gluh/MySQL/Bugs/5.0.9404

into mysql.com:/home/gluh/MySQL/Bugs/5.0.9404

into mysql.com:/home/gluh/MySQL/Bugs/5.0.9404

heap/hp_hash.c:
  Fix for bug #9404: information_schema: Weird error messages with SELECT SUM() ... GROUP BY queries 
      use length in symbols instead of length in bytes
      to calculate record length and key length

  Bumped up version number to indicate 4.1.12 was branched off


configure.in:
  Bumped up version number to indicate 4.1.12 was branched off

with multi-byte strings, length() instead
of numchars() where used in a mistake.

into mysql.com:/home/jonas/src/mysql-4.1

into mysql.com:/home/jonas/src/mysql-5.0