According to some internal communication, these two functions are place
holders for future enhancements. Because they use a variable number of
parameters, the implementation defined a reserved keyword for them in the
parser grammar.

Unfortunately, doing so creates a bug similar to Bug 21114 reported for the
function FORMAT.

In the 5.1 code base, due to improvements in the code implemented with bug
21114, having a reserved keyword for functions with a variable number of
arguments is not needed any more by the implementation.

As a result, this fix removes the place-holder implementation, and removes
the unnecessary reserved keywords. Should the functions UNIQUE_USERS and
GROUP_UNIQUE_USERS be finally implemented in a later release, the
implementation should sub class Create_native_func in sql/item_create.cc.
For example, see the class Create_func_concat.


BitKeeper/deleted/.del-item_uniq.cc:
  Rename: sql/item_uniq.cc -> BitKeeper/deleted/.del-item_uniq.cc
BitKeeper/deleted/.del-item_uniq.h:
  Rename: sql/item_uniq.h -> BitKeeper/deleted/.del-item_uniq.h
libmysqld/Makefile.am:
  Remove native functions UNIQUE_USERS() and GROUP_UNIQUE_USERS().
mysql-test/r/parser.result:
  Remove native functions UNIQUE_USERS() and GROUP_UNIQUE_USERS().
mysql-test/t/parser.test:
  Remove native functions UNIQUE_USERS() and GROUP_UNIQUE_USERS().
sql/Makefile.am:
  Remove native functions UNIQUE_USERS() and GROUP_UNIQUE_USERS().
sql/item.h:
  Remove native functions UNIQUE_USERS() and GROUP_UNIQUE_USERS().
sql/item_sum.h:
  Remove native functions UNIQUE_USERS() and GROUP_UNIQUE_USERS().
sql/lex.h:
  Remove native functions UNIQUE_USERS() and GROUP_UNIQUE_USERS().
sql/mysql_priv.h:
  Remove native functions UNIQUE_USERS() and GROUP_UNIQUE_USERS().
sql/sql_yacc.yy:
  Remove native functions UNIQUE_USERS() and GROUP_UNIQUE_USERS().

into  weblab.(none):/home/marcsql/TREE/mysql-5.1-merge2


mysql-test/r/sp-code.result:
  Auto merged
mysql-test/r/sp-vars.result:
  Auto merged
mysql-test/r/sp.result:
  Auto merged
mysql-test/r/trigger.result:
  Auto merged
mysql-test/t/sp.test:
  Auto merged
mysql-test/t/trigger.test:
  Auto merged
sql/sp_head.cc:
  Auto merged
sql/sp_head.h:
  Auto merged
sql/sql_lex.cc:
  Auto merged
sql/sql_lex.h:
  Auto merged
sql/sql_yacc.yy:
  Manual 
  Manual merge, partial

mysql-test/r/read_only.result:
  A post-merge fix: update results.
server-tools/instance-manager/guardian.cc:
  Remove initialization of a non-existent member.

into  bodhi.local:/opt/local/work/mysql-5.1-runtime


mysql-test/r/log_tables.result:
  Auto merged
sql/handler.cc:
  Auto merged
sql/set_var.cc:
  Auto merged
sql/sql_class.cc:
  Auto merged
sql/sql_class.h:
  Auto merged
sql/sql_yacc.yy:
  Auto merged
mysql-test/r/read_only.result:
  Manual merge.
mysql-test/t/read_only.test:
  Manual merge.
server-tools/instance-manager/guardian.cc:
  Manual merge.

into  weblab.(none):/home/marcsql/TREE/mysql-5.0-runtime


sql/sp_head.cc:
  Auto merged

mysql-test/t/sp_stress_case.test:
  Minor cleanup ... the test is now faster, even in debug builds

into  weblab.(none):/home/marcsql/TREE/mysql-5.0-19194


sql/sp_head.cc:
  Auto merged
sql/sql_lex.cc:
  Auto merged
sql/sql_lex.h:
  Auto merged
sql/sql_yacc.yy:
  Auto merged

  limitation)
Bug#24854 (Mixing Searched Case with Simple Case inside Stored Procedure
  crashes Mysqld)

Implemented code review (19194) comments


mysql-test/r/sp_stress_case.result:
  Implemented code review comments : use SQL instead of a shell script to
  generate the code
mysql-test/t/sp_stress_case.test:
  Adjusted
sql/sql_yacc.yy:
  Added more explicit comments
BitKeeper/deleted/.del-sp_stress_case.sh:
  Delete: mysql-test/t/sp_stress_case.sh

into  example.com:/work/mysql-5.1-maint

mysql-test/t/events_bugs.test:
  let events_bugs not fail because of timing
sql/sql_table.cc:
  if the db or name has been changed ALTER_RENAME,
  then fix table_list
  Solution by having the second table added in the parser to the
  list of used tables, won't work because checking of rights of merge
  tables goes over table_list->next_local and checks the rights, so
  we will fail there.
sql/sql_yacc.yy:
  fix name - prevents ddd from correct working

into  neptunus.(none):/home/msvensson/mysql/mysql-5.1-maint


client/mysqltest.c:
  Auto merged
mysys/my_getopt.c:
  Auto merged
sql/sql_class.cc:
  Auto merged
sql/sql_class.h:
  Auto merged
sql/sql_parse.cc:
  Auto merged
mysql-test/t/disabled.def:
  Manual merge

Remove DBUG_ENTER in my_end


client/mysqltest.c:
  Call 'mysql_server_end' as last function in 'free_used_memory'
  Don't use DBUG_VOID_RETURN after mysql_server_end in free_used_memory
  Only call mysql_server_end if mysql_server_init has been called

uninitialized list of guarded instances.


server-tools/instance-manager/guardian.cc:
  Initialize guarded_instance to NULL in constuctor. Avoid looping over
  uninitialized list of guarded instances

into  neptunus.(none):/home/msvensson/mysql/mysql-5.1-maint

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

into  neptunus.(none):/home/msvensson/mysql/mysql-5.1-maint


client/mysqltest.c:
  Auto merged
mysql-test/mysql-test-run.pl:
  Auto merged
mysql-test/r/ndb_update.result:
  Auto merged
sql/ha_ndbcluster.cc:
  Auto merged
storage/ndb/src/common/util/socket_io.cpp:
  Auto merged
storage/ndb/src/kernel/blocks/cmvmi/Cmvmi.cpp:
  Auto merged
storage/ndb/src/kernel/blocks/dbdict/Dbdict.cpp:
  Auto merged
storage/ndb/src/kernel/blocks/dbdih/DbdihMain.cpp:
  Auto merged
storage/ndb/src/kernel/vm/SimulatedBlock.cpp:
  Auto merged
storage/ndb/src/mgmsrv/Services.cpp:
  Auto merged
storage/ndb/src/ndbapi/NdbTransaction.cpp:
  Auto merged
storage/ndb/src/ndbapi/ndberror.c:
  Auto merged
storage/ndb/test/run-test/daily-basic-tests.txt:
  Auto merged
storage/ndb/tools/ndb_condig.cpp:
  Auto merged
storage/ndb/src/common/util/File.cpp:
  Manual merge
storage/ndb/src/common/util/InputStream.cpp:
  Manual merge

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


mysql-test/mysql-test-run.pl:
  Auto merged

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


mysql-test/mysql-test-run.pl:
  Auto merged

into  neptunus.(none):/home/msvensson/mysql/mysql-5.1-maint


configure.in:
  Auto merged
mysql-test/mysql-test-run.pl:
  Auto merged
mysql-test/r/parser.result:
  Auto merged
mysql-test/r/sp.result:
  Auto merged
mysql-test/r/sp_gis.result:
  Auto merged
mysql-test/r/udf.result:
  Auto merged
mysql-test/t/parser.test:
  Auto merged
mysql-test/t/udf.test:
  Auto merged
sql/item_create.cc:
  Auto merged
sql/share/errmsg.txt:
  Auto merged
sql/sql_lex.cc:
  Auto merged
sql/sql_lex.h:
  Auto merged
sql/sql_yacc.yy:
  Auto merged

into  neptunus.(none):/home/msvensson/mysql/mysql-5.1

client/mysqltest.c:
  Exclude

sql/event_data_objects.cc:
  add a comments that using gmt_sec_to_TIME() won't
  be safe after 2038. per andrey's request
sql/event_queue.cc:
  remove assert, which aborts server in the case when it shouldn't

into  rolltop.ignatz42.dyndns.org:/mnt/storeage/mysql-5.0-maint


sql/sql_class.cc:
  Auto merged

into  rolltop.ignatz42.dyndns.org:/mnt/storeage/mysql-5.1-maint


sql/sql_class.cc:
  Auto merged

into  rolltop.ignatz42.dyndns.org:/mnt/storeage/bug20836/my51-bug20836


sql/sql_class.cc:
  Auto merged

into  rolltop.ignatz42.dyndns.org:/mnt/storeage/bug20836/my50-bug20836


sql/sql_class.cc:
  manual merge

- Comment Cleanup.


sql/sql_class.cc:
  Removed misleading comment.

error message in the logs before shutting down the server

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

into  neptunus.(none):/home/msvensson/mysql/mysql-5.1-maint


sql/mysql_priv.h:
  Auto merged
sql/sql_class.h:
  Auto merged
sql/sql_parse.cc:
  Auto merged
sql/sql_table.cc:
  Auto merged

mysql-test/r/sp.result:
  offset error number according to changed error messages file
mysql-test/r/sp_gis.result:
  offset error number according to changed error messages file

into  kahlann.erinye.com:/home/df/mysql/build/mysql-5.1-build


mysql-test/mysql-test-run.pl:
  Auto merged

into  kahlann.erinye.com:/home/df/mysql/build/mysql-5.0-build-work


mysql-test/mysql-test-run.pl:
  Auto merged