mysql-test/r/subselect.result:
  test of collation
mysql-test/t/subselect.test:
  test of collation
sql/item.cc:
  coping collation in the cache
sql/item.h:
  coping collation in the cache

by MAX/MIN in some cases:
SELECT coercibility(max(s1)) from t1;

Subselect collation and derivation was not processed
correctly:

create table a select (select s1 from t1);
select * from t1 where s1 = (select s2 from t1);

tests/client_test.c:
  Updated test_ts() test (For BR# 819)

(fixed BUG#943)


mysql-test/r/subselect.result:
  test for bug 943
mysql-test/t/subselect.test:
  test for bug 943
sql/item.cc:
  bool field changed with enum
  prevented finding references in item_list for non-SELECT st_select_lex
sql/sql_lex.cc:
  bool field changed with enum
sql/sql_lex.h:
  bool field changed with enum
sql/sql_parse.cc:
  all subqueries and UNION parts marked as SELECT
sql/sql_yacc.yy:
  bool field changed with enum
  PRIMARY SELECT command st_select_lex marked as SELECT

count HAVING clause elements with select list elements, because agregate function can be present in it (BUG#922)
removerd unused loop_id


mysql-test/r/subselect.result:
  test of BUG#922
mysql-test/t/subselect.test:
  test of BUG#922
sql/item.cc:
  removerd unused loop_id
  we need count HAVING clause elements, because agregate function can be present in it
sql/item.h:
  removerd unused loop_id
sql/item_subselect.cc:
  new name of field
sql/sql_derived.cc:
  new name of field
sql/sql_lex.cc:
  new name of field
sql/sql_lex.h:
  new name of field
sql/sql_select.cc:
  new name of field
sql/sql_union.cc:
  new name of field

  A better comment


sql/item.cc:
  A better comment

and comparison was done binary. Now, a binary string wins a character sting 
taking in account their derivation. That means a character field wins a
binary literal and comparison is done according to the character field
collation, not binary. 

CONCAT() and other string functions. This allows to reuse a lot
if code and to simplify further development.

It's a combination of collation and its derivation (precedence order)

outer resolved fields now do not marked as dependent if they is not really belong to outer SELECT
one-letter variables name fixed


mysql-test/r/subselect.result:
  test of bug 679
mysql-test/t/subselect.test:
  test of bug 679
sql/item.cc:
  outer resolved fields now do not marked as dependent if they is not really belong to outer SELECT
  one-letter variables name fixed

BIN
OCT
CONV
HEX
CHAR
FORMAT
REPLACE

bmove_allign -> bmove_align
Added OLAP function ROLLUP
Split mysql_fix_privilege_tables to a script and a .sql data file
Added new (MEMROOT*) functions to avoid calling current_thd() when creating some common objects.
Added table_alias_charset, for easier --lower-case-table-name handling
Better SQL_MODE handling (Setting complex options also sets sub options)
New (faster) assembler string functions for x86


BitKeeper/etc/ignore:
  added libmysqld/sql_state.c
client/mysql.cc:
  Added SQLSTATE to error messages
  Added new function put_error() to be able to clean up some old code.
client/mysqltest.c:
  Write ERROR SQLSTATE for all errors
dbug/dbug.c:
  Portability fixes
include/m_string.h:
  Rename bmove_allign as bmove_align
include/mysql.h:
  Added SQLSTATE (for embedded version)
include/mysql_com.h:
  Send correct SQLSTATE for the error to the client
libmysql/libmysql.c:
  Changed default error state to HY000
  Applied code cleanup patch
libmysqld/Makefile.am:
  Added sql_state.cc
libmysqld/libmysqld.c:
  Added sqlstate
mysql-test/r/analyse.result:
  Updated results
mysql-test/r/ansi.result:
  Updated results
mysql-test/r/auto_increment.result:
  Updated results
mysql-test/r/bdb-deadlock.result:
  Updated results
mysql-test/r/bdb.result:
  Updated results
mysql-test/r/comments.result:
  Updated results
mysql-test/r/create.result:
  Updated results
mysql-test/r/ctype_collate.result:
  Updated results
mysql-test/r/delayed.result:
  Updated results
mysql-test/r/delete.result:
  Updated results
mysql-test/r/derived.result:
  Updated results
mysql-test/r/distinct.result:
  Updated results
mysql-test/r/drop.result:
  Updated results
mysql-test/r/err000001.result:
  Updated results
mysql-test/r/explain.result:
  Updated results
mysql-test/r/flush.result:
  Updated results
mysql-test/r/fulltext.result:
  Updated results
mysql-test/r/func_gconcat.result:
  Updated results
mysql-test/r/func_system.result:
  Updated results
mysql-test/r/grant_cache.result:
  Updated results
mysql-test/r/group_by.result:
  Updated results
mysql-test/r/handler.result:
  Updated results
mysql-test/r/heap.result:
  Updated results
mysql-test/r/heap_btree.result:
  Updated results
mysql-test/r/heap_hash.result:
  Updated results
mysql-test/r/innodb.result:
  Updated results
mysql-test/r/innodb_handler.result:
  Updated results
mysql-test/r/insert_select.result:
  Updated results
mysql-test/r/insert_update.result:
  Updated results
mysql-test/r/join.result:
  Updated results
mysql-test/r/join_outer.result:
  Updated results
mysql-test/r/key.result:
  Updated results
mysql-test/r/lock.result:
  Updated results
mysql-test/r/lock_multi.result:
  Updated results
mysql-test/r/merge.result:
  Updated results
mysql-test/r/multi_update.result:
  Updated results
mysql-test/r/myisam.result:
  Updated results
mysql-test/r/null.result:
  Updated results
mysql-test/r/olap.result:
  Updated results
mysql-test/r/order_by.result:
  Updated results
mysql-test/r/packet.result:
  Updated results
mysql-test/r/query_cache.result:
  Updated results
mysql-test/r/row.result:
  Updated results
mysql-test/r/rpl000001.result:
  Updated results
mysql-test/r/rpl000009.result:
  Updated results
mysql-test/r/rpl_empty_master_crash.result:
  Updated results
mysql-test/r/rpl_log.result:
  Updated results
mysql-test/r/rpl_replicate_do.result:
  Updated results
mysql-test/r/rpl_rotate_logs.result:
  Updated results
mysql-test/r/select.result:
  Updated results
mysql-test/r/select_safe.result:
  Updated results
mysql-test/r/show_check.result:
  Updated results
mysql-test/r/sql_mode.result:
  Updated results
mysql-test/r/subselect.result:
  Updated results
mysql-test/r/temp_table.result:
  Updated results
mysql-test/r/truncate.result:
  Updated results
mysql-test/r/type_blob.result:
  Updated results
mysql-test/r/type_decimal.result:
  Updated results
mysql-test/r/type_float.result:
  Updated results
mysql-test/r/type_ranges.result:
  Updated results
mysql-test/r/union.result:
  Updated results
mysql-test/r/update.result:
  Updated results
mysql-test/r/user_var.result:
  Updated results
mysql-test/r/varbinary.result:
  Updated results
mysql-test/r/variables.result:
  Updated results
mysql-test/t/ansi.test:
  Test of sql_mode
mysql-test/t/derived.test:
  Updated results
mysql-test/t/func_system.test:
  Make this independen of the MySQL server name
mysql-test/t/lowercase_table.test:
  Cleanup
mysql-test/t/olap.test:
  A lot of new tests
mysql-test/t/sql_mode.test:
  More test for sql_mode
mysql-test/t/subselect.test:
  Added a few new tests (to find a bug in the item_ref code)
scripts/Makefile.am:
  Added mysql_fix_privilege_tables.sql
scripts/mysql_fix_privilege_tables.sh:
  Totally new script.  This bascily just pipes mysql_fix_privilege_tables.sql through 'mysql' to 'mysqld'
sql/Makefile.am:
  Added sql_state.cc
sql/item.cc:
  Extended Item_field::eq() to be able to better match GROUP BY fields on the command line.
  Needed for ROLLUP
sql/item.h:
  Added function to be able to avoid calling current_thd() when doing new Item.
sql/item_sum.cc:
  Moved copy_or_same() and some reset() functions from item_sum.h
  Needed to be able to access thd->mem_root.
sql/item_sum.h:
  Moved some functions to item_sum.cc
  Added make_unique() for ROLLUP
sql/item_uniq.h:
  Fixed return value
sql/mysql_priv.h:
  Updated MODE flags
sql/mysqld.cc:
  Added ANSI as it's own mode
  Moved charset_info variables here
  Cleaned up handler_count handling (for NT)
  Added table_alias_charset, for easier --lower-case-table-name handling
sql/net_serv.cc:
  New comment
sql/protocol.cc:
  Send SQLSTATE to client
sql/set_var.cc:
  Better SQL_MODE handling (Setting complex options also sets sub options)
sql/set_var.h:
  Better SQL_MODE handling
sql/sql_base.cc:
  Make alias depend on --lower-case-table-names
  Make find_item_in_list also check database name
sql/sql_cache.cc:
  Indentation cleanup
sql/sql_list.h:
  Added safety assert
  Addes support of alloc without current_thd()
sql/sql_prepare.cc:
  Update after prototype change
sql/sql_select.cc:
  Added ROLLUP
sql/sql_select.h:
  structures for rollup
sql/sql_show.cc:
  Easier SQL_MODE handling
sql/sql_string.cc:
  Move CHARSET_INFO to mysqld (to be together with all other global variables)
sql/sql_string.h:
  Added function to be able to avoid calling current_thd() when doing new Item.
sql/sql_table.cc:
  Simpler --lower-case-table-name handling
sql/sql_union.cc:
  Update after prototype change
sql/sql_yacc.yy:
  ROLLUP
sql/unireg.h:
  bmove_allign ->bmove_align
strings/Makefile.am:
  Fix to be able to compile str_test.c
strings/ctype.c:
  Removed empty lines
strings/str_test.c:
  Added test of bmove_align
strings/strings-x86.s:
  Faster bmove_align, bmove_upp and strmake
strings/strings.asm:
  move_allg

Some default_charset_info were removed

mysql-test/r/subselect.result:
  subselect test changed
mysql-test/t/subselect.test:
  INSERT DELAYED INTO t1 (x) VALUES ((SELECT SUM(x) FROM t2));
sql/item.cc:
  avoid resolving of INSER/REPLACE tables field in subqueries
sql/sql_lex.cc:
  Primary (top) simple INSERT/REPLACE st_select_lex indicator
sql/sql_lex.h:
  Primary (top) simple INSERT/REPLACE st_select_lex indicator
sql/sql_yacc.yy:
  Primary (top) simple INSERT/REPLACE st_select_lex indicator

Added initialization of all important global variables


BUILD/SETUP.sh:
  build with readline
client/mysqltest.c:
  Added variable SERVER_VERSION
myisam/mi_key.c:
  Indentation change
myisam/mi_open.c:
  After merge fix
myisam/mi_range.c:
  After merge fix
myisam/mi_rkey.c:
  After merge fix
myisam/mi_search.c:
  After merge fix
myisam/myisamdef.h:
  After merge fix
mysql-test/include/not_embedded.inc:
  Fix test (because of wrong utf8 test)
mysql-test/r/alter_table.result:
  Updated results after merge
mysql-test/r/create.result:
  Updated results after merge
mysql-test/r/ctype_recoding.result:
  Updated results after merge
mysql-test/r/fulltext.result:
  Updated results after merge
mysql-test/r/func_group.result:
  Updated results after merge
mysql-test/r/group_by.result:
  Updated results after merge
mysql-test/r/innodb.result:
  Updated results after merge
mysql-test/r/join_outer.result:
  Updated results after merge
mysql-test/r/null_key.result:
  Updated results after merge
mysql-test/r/order_by.result:
  Updated results after merge
mysql-test/r/query_cache.result:
  Updated results after merge
mysql-test/r/repair.result:
  Updated results after merge
mysql-test/r/rpl_flush_tables.result:
  Updated results after merge
mysql-test/r/union.result:
  Updated results after merge
mysql-test/r/update.result:
  Updated results after merge
mysql-test/t/ansi.test:
  After merge fixes
mysql-test/t/create.test:
  After merge fixes
mysql-test/t/ctype_recoding.test:
  After merge fixes
mysql-test/t/ctype_ujis.test:
  After merge fixes
mysql-test/t/fulltext.test:
  After merge fixes
mysql-test/t/innodb.test:
  After merge fixes
mysql-test/t/join_outer.test:
  After merge fixes
mysql-test/t/loaddata.test:
  After merge fixes
mysql-test/t/order_by.test:
  After merge fixes
mysql-test/t/rpl_flush_tables.test:
  After merge fixes
mysql-test/t/status.test:
  After merge fixes
mysql-test/t/subselect.test:
  After merge fixes
sql/convert.cc:
  Code cleanup
sql/field.cc:
  After merge fixes
sql/filesort.cc:
  Remove compiler warning
sql/item.cc:
  More efficient set_name() (no mallocs)
sql/item_cmpfunc.cc:
  Code Code cleanup
  Item_bool_func2::fix_fields() added to get error handling right for cmp_charset
sql/item_cmpfunc.h:
  New prototypes
sql/item_func.cc:
  After merge fix
sql/item_strfunc.cc:
  Faster check for BINARY
sql/log_event.cc:
  Comment cleanup
sql/mysql_priv.h:
  New prototypes and variables
sql/mysqld.cc:
  Added initialization of all important global variables.
  Cleanup of variable declarations
  This is needed ot make the embedded version restartable
sql/opt_sum.cc:
  After merge fix
sql/set_var.cc:
  Code cleanup
sql/sql_acl.cc:
  After merge fix
  Better error message
sql/sql_db.cc:
  After merge fix
sql/sql_derived.cc:
  After merge fix
sql/sql_insert.cc:
  Indentation cleanups
sql/sql_list.h:
  Added empty() to base_ilist
sql/sql_parse.cc:
  After merge fix
sql/sql_select.cc:
  After merge fix
  Fixed derived name handling in EXPLAIN
sql/sql_show.cc:
  After merge fix
sql/sql_string.cc:
  Made copy_and_convert global
sql/sql_string.h:
  Made copy_and_convert global
sql/sql_update.cc:
  After merge fix
sql/sql_yacc.yy:
  After merge fix
sql/thr_malloc.cc:
  Added sql_strmake_with_convert()
sql/unireg.h:
  Added MAX_ALIAS_NAME
strings/ctype-ujis.c:
  Fixed bug in converting to ujis

mysql-test/r/func_group.result:
  new tests
mysql-test/t/func_group.test:
  new tests
sql/item.cc:
  count items in select list
sql/item_subselect.cc:
  use number of item in select list for array creation
sql/item_sum.cc:
  with_sum_func now is boolean
sql/sql_derived.cc:
  use number of item in select list for array creation
sql/sql_lex.cc:
  create_refs changed with parsing_place enum variable
sql/sql_lex.h:
  added items in select list counter
  create_refs changed with parsing_place enum variable
  with_sum_func now is boolean
sql/sql_select.cc:
  use number of item in select list for array creation
sql/sql_union.cc:
  use number of item in select list for array creation
sql/sql_yacc.yy:
  create_refs changed with parsing_place enum variable

Allow syntax CREATE TABLE t1 (LIKE t2)


BUILD/compile-pentium-debug-max:
  Disable isam
BUILD/compile-pentium-valgrind-max:
  Disable isam
include/mysqld_error.h:
  New error
mysql-test/r/bdb.result:
  new error message
mysql-test/r/innodb.result:
  new error message
mysql-test/r/subselect.result:
  New test
mysql-test/r/variables.result:
  New test
mysql-test/r/warnings.result:
  Test of warning if MySQL creates table with another handler than specified
mysql-test/t/innodb.test:
  Added test case for derivied tables
mysql-test/t/subselect.test:
  New test
mysql-test/t/variables-master.opt:
  Fixed wrong parameter
mysql-test/t/warnings.test:
  Test if creating handler of not existing table type
sql/ha_isam.cc:
  Added option --skip-isam
sql/ha_isam.h:
  Added option --skip-isam
sql/handler.cc:
  Added option --skip-isam
sql/item.cc:
  Deleted probably wrong bug fix
sql/mysqld.cc:
  Added option --skip-isam
sql/share/czech/errmsg.txt:
  Added missing ','
sql/share/danish/errmsg.txt:
  Added missing ','
sql/share/dutch/errmsg.txt:
  Added missing ','
sql/share/english/errmsg.txt:
  Added missing ','
  changed table handler -> storage engine
sql/share/estonian/errmsg.txt:
  Added missing ','
sql/share/french/errmsg.txt:
  Added missing ','
sql/share/german/errmsg.txt:
  Added missing ','
sql/share/greek/errmsg.txt:
  Added missing ','
sql/share/hungarian/errmsg.txt:
  Added missing ','
sql/share/italian/errmsg.txt:
  Added missing ','
sql/share/japanese/errmsg.txt:
  Added missing ','
sql/share/korean/errmsg.txt:
  Added missing ','
sql/share/norwegian-ny/errmsg.txt:
  Added missing ','
sql/share/norwegian/errmsg.txt:
  Added missing ','
sql/share/polish/errmsg.txt:
  Added missing ','
sql/share/portuguese/errmsg.txt:
  Added missing ','
sql/share/romanian/errmsg.txt:
  Added missing ','
sql/share/russian/errmsg.txt:
  Added missing ','
sql/share/serbian/errmsg.txt:
  Added missing ','
sql/share/slovak/errmsg.txt:
  Added missing ','
sql/share/spanish/errmsg.txt:
  Added missing ','
sql/share/swedish/errmsg.txt:
  Added missing ','
sql/share/ukrainian/errmsg.txt:
  Added missing ','
sql/sql_acl.cc:
  Fix bug in access checking of derived tables
sql/sql_base.cc:
  Indentation change
sql/sql_parse.cc:
  Fix bug in access checking of derived tables
sql/sql_select.cc:
  Fixed bug in new sub select optimization
sql/sql_table.cc:
  Give warning if MySQL doesn't honor given storage engine
sql/sql_yacc.yy:
  Allow syntax CREATE TABLE t1 (LIKE t2).

Fixed memory leak in new filesort code
Optimzed sub selects to use keys with outer references.
Increased max tables in join to 62


client/Makefile.am:
  Remve test programs
myisam/mi_check.c:
  Remove compiler warnings
myisam/mi_delete.c:
  Remove 'rnd' variable to make usage repeatable
myisam/mi_open.c:
  Remove 'rnd' variable to make usage repeatable
myisam/mi_write.c:
  Remove 'rnd' variable to make usage repeatable
myisam/myisamdef.h:
  Remove 'rnd' variable to make usage repeatable
myisam/myisamlog.c:
  Remove 'rnd' variable to make usage repeatable
mysql-test/r/subselect.result:
  new test
mysql-test/t/join.test:
  Updated test
mysql-test/t/subselect.test:
  new test
sql/filesort.cc:
  Added function to free buffers allocated by filesort
sql/item.cc:
  Sub select optimization
sql/item_cmpfunc.cc:
  Sub select optimization
sql/item_subselect.cc:
  Sub select optimization
sql/item_sum.cc:
  Removed compiler warnings
sql/item_sum.h:
  Simple code cleanup
sql/log.cc:
  Removed compiler warning
sql/mysql_priv.h:
  Made table_map ulonglong to allow 62 tables in join
sql/records.cc:
  Moved free of filesort buffers to own function
sql/sql_select.cc:
  subselect optimization
  Call filesort_free_buffers() to free memory from filesort
sql/unireg.h:
  Sub select optimization

Use 0x.... as strings if 'new' mode. (bug 152)
Don't report -max on windows when InnoDB is enabled. (bug 332)
Reset current_linfo;  This could cause a hang when doing PURGE LOGS.
Fix for row numbers in EXPLAIN (bug 322)
 Fix that USE_FRM works for all table types (bug 97)


VC++Files/libmysql/libmysql.dsp:
  Added new source files
myisam/mi_key.c:
  Fixed problem when comparing a key for a multi-byte-character set.
myisam/mi_range.c:
  Fixed problem when comparing a key for a multi-byte-character set.
myisam/mi_rkey.c:
  Fixed problem when comparing a key for a multi-byte-character set.
myisam/mi_search.c:
  Fixed problem when comparing a key for a multi-byte-character set.
myisam/mi_test2.c:
  Fixed printf statements
myisam/myisamdef.h:
  Fixed problem when comparing a key for a multi-byte-character set.
myisam/sort.c:
  Fixed printf statements
mysql-test/r/ctype_latin1_de.result:
  New test results
mysql-test/r/join.result:
  New test results
mysql-test/r/repair.result:
  New test results
mysql-test/r/rpl_alter.result:
  New test results
mysql-test/t/ctype_latin1_de-master.opt:
  --new is needed to get 0x... strings to work properly
mysql-test/t/ctype_latin1_de.test:
  New test for latin1_de
mysql-test/t/repair.test:
  Test of USE_FRM and HEAP tables
sql/field.cc:
  Fixed problem when comparing a key for a multi-byte-character set.
sql/item.cc:
  Use 0x.... as strings if 'new' mode
sql/item.h:
  Use 0x.... as strings if 'new' mode
sql/mysqld.cc:
  Don't report -max on windows when InnoDB is enabled.
sql/sql_analyse.cc:
  Removed unused variable
sql/sql_insert.cc:
  Removed debug message
sql/sql_repl.cc:
  Reset current_linfo;  This could cause a hang when doing PURGE LOGS.
sql/sql_select.cc:
  Fix for row numbers in EXPLAIN
sql/sql_table.cc:
  Fix that USE_FRM works for all table types (without strange errors)
sql/sql_yacc.yy:
  Removed compiler warnings.

  client_collation -> collation_client
  result_collation -> collation_results
  connection_collation -> collation_connection


BitKeeper/etc/ignore:
  Added client/ssl_test to the ignore list

Fix broken windows distribution workspace file (libmysql.dsp), which is causing VC IDE to crash while loading
Remove ctype_latin1_de.c from respective dsp files
Fix to make_win_src_distribution.sh to delete all newly added IS Bitkeeper files



VC++Files/libmysql/libmysql.dsp:
  Fix the broken file

sql/item.cc:
  query_val_str to return param item value in string format
sql/item.h:
  Misc defination changes for Item_param
sql/sql_class.h:
  Changes for PREP_STMT
sql/sql_string.cc:
  Duplicate String::replace to take char * and length as arguments
sql/sql_yacc.yy:
  Change to take param marker position to Item_param as an argument
sql/sql_prepare.cc:
  Fix for binary + update logs
sql/sql_string.h:
  Added new replace()

mysql-test/r/group_by.result:
  Test for group by + alias bug
mysql-test/t/group_by.test:
  Test for group by + alias bug

code cleanup


mysql-test/r/having.result:
  A test for the bug fix for bug #176
mysql-test/t/having.test:
  A test for the bug fix for bug #176
sql/item.cc:
  A for the bug  #176
sql/item_func.cc:
  Code cleanup

Fixes according coercibility tables, p162, SQL Complete


include/my_sys.h:
  Declaration has been moved to /sql directory
sql/item.cc:
  Fixes acording SQL complete, page 162
sql/item_cmpfunc.cc:
  Fixes acording SQL complete, page 162
sql/mysql_priv.h:
  Declaration has been moved here from /include
sql/sql_string.cc:
  A separate variable national_charset_info
sql/sql_yacc.yy:
  A separate variable national_charset_info

Fixed bug in Item::set_name()
Fix for memory leak with geometry type


mysql-test/r/create.result:
  Fixed results after merge
mysql-test/r/innodb.result:
  Hack to make test repeatable
  (InnoDB's cardinality numbers varies a bit between tests)
mysql-test/r/rpl_relayspace.result:
  After merge fix
mysql-test/t/innodb.test:
  Hack to make test repeatable
  (InnoDB's cardinality numbers varies a bit between tests)
sql/ha_myisam.cc:
  Indentation cleanup
sql/item.cc:
  Fixed bug in Item::set_name()
sql/password.c:
  After merge fix
sql/sql_update.cc:
  After merge fix
sql/table.cc:
  Fix for memory leak with geometry type

comparison" table, "SQL Complete, Really", page 162

mysql-test/r/ctype_collate.result:
  NO COLLATION has less coercibility than IMPLICIT and COERCIBLE
sql/item.cc:
  Function to choose collation for dyadic operations
sql/item.h:
  NO COLLATION has less coercibility than IMPLICIT and COERCIBLE
sql/item_func.cc:
  Function to choose collation for dyadic operations
sql/item_strfunc.cc:
  Function to choose collation for dyadic operations
sql/item_strfunc.h:
  Use arg's attributes

mysql-test/t/ctype_many.test:
  Automatic client-server charset recoding has been added
mysys/charset.c:
  Automatic client-server charset recoding has been added
sql/item.cc:
  Automatic client-server charset recoding has been added
sql/item.h:
  Automatic client-server charset recoding has been added
sql/item_cmpfunc.cc:
  Automatic client-server charset recoding has been added
sql/item_func.cc:
  Automatic client-server charset recoding has been added
sql/item_strfunc.cc:
  Automatic client-server charset recoding has been added
sql/mysqld.cc:
  Automatic client-server charset recoding has been added
sql/protocol.cc:
  Automatic client-server charset recoding has been added
sql/sql_string.cc:
  Automatic client-server charset recoding has been added
sql/sql_yacc.yy:
  Automatic client-server charset recoding has been added
strings/ctype-utf8.c:
  Automatic client-server charset recoding has been added

usage of expressions whose result are to be saved into user vars.