Merge with 4.1

BitKeeper/etc/ignore:
  auto-union
BitKeeper/etc/logging_ok:
  auto-union
Build-tools/Do-compile:
  Auto merged
VC++Files/sql/mysqld.dsp:
  Auto merged
client/Makefile.am:
  Auto merged
client/mysql.cc:
  Auto merged
BitKeeper/deleted/.del-acinclude.m4~f4ab416bac5003:
  Auto merged
client/mysqltest.c:
  Auto merged
include/my_base.h:
  Auto merged
innobase/dict/dict0dict.c:
  Auto merged
innobase/dict/dict0load.c:
  Auto merged
innobase/include/dict0dict.h:
  Auto merged
innobase/include/row0mysql.h:
  Auto merged
innobase/os/os0file.c:
  Auto merged
innobase/srv/srv0srv.c:
  Auto merged
libmysql/libmysql.c:
  Auto merged
myisam/mi_check.c:
  Auto merged
myisam/mi_rnext_same.c:
  Auto merged
myisam/mi_write.c:
  Auto merged
myisam/sort.c:
  Auto merged
mysql-test/mysql-test-run.sh:
  Auto merged
mysql-test/r/ctype_ucs.result:
  Auto merged
mysql-test/r/ctype_ujis.result:
  Auto merged
mysql-test/r/gis-rtree.result:
  Auto merged
mysql-test/r/group_by.result:
  Auto merged
mysql-test/r/merge.result:
  Auto merged
mysql-test/r/metadata.result:
  Auto merged
mysql-test/r/ndb_alter_table.result:
  Auto merged
mysql-test/r/ps_1general.result:
  Auto merged
mysql-test/r/insert_update.result:
  Auto merged
mysql-test/r/timezone2.result:
  Auto merged
mysql-test/r/type_enum.result:
  Auto merged
mysql-test/r/variables.result:
  Auto merged
mysql-test/t/ctype_ucs.test:
  Auto merged
mysql-test/t/merge.test:
  Auto merged
mysql-test/t/ps_1general.test:
  Auto merged
mysql-test/t/subselect.test:
  Auto merged
mysql-test/t/system_mysql_db_fix.test:
  Auto merged
mysql-test/t/variables.test:
  Auto merged
ndb/include/ndbapi/NdbConnection.hpp:
  Auto merged
ndb/include/ndbapi/NdbDictionary.hpp:
  Auto merged
ndb/src/common/util/version.c:
  Auto merged
ndb/src/kernel/blocks/dbacc/DbaccInit.cpp:
  Auto merged
ndb/src/kernel/blocks/dbacc/Makefile.am:
  Auto merged
ndb/src/kernel/blocks/dbdict/Dbdict.cpp:
  Auto merged
ndb/src/kernel/blocks/dbdih/DbdihMain.cpp:
  Auto merged
ndb/src/kernel/blocks/dblqh/DblqhInit.cpp:
  Auto merged
ndb/src/kernel/blocks/dbtc/DbtcMain.cpp:
  Auto merged
ndb/src/kernel/blocks/dbtux/Dbtux.hpp:
  Auto merged
ndb/src/ndbapi/NdbBlob.cpp:
  Auto merged
ndb/src/ndbapi/NdbConnection.cpp:
  Auto merged
ndb/src/ndbapi/NdbDictionary.cpp:
  Auto merged
ndb/src/ndbapi/NdbDictionaryImpl.cpp:
  Auto merged
ndb/src/ndbapi/NdbDictionaryImpl.hpp:
  Auto merged
ndb/src/ndbapi/NdbOperationExec.cpp:
  Auto merged
ndb/src/ndbapi/NdbScanOperation.cpp:
  Auto merged
ndb/test/ndbapi/Makefile.am:
  Auto merged
scripts/make_win_src_distribution.sh:
  Auto merged
scripts/mysql_install_db.sh:
  Auto merged
sql/field.cc:
  Auto merged
sql/ha_innodb.cc:
  Auto merged
sql/ha_ndbcluster.cc:
  Auto merged
sql/ha_ndbcluster.h:
  Auto merged
sql/handler.cc:
  Auto merged
sql/item_cmpfunc.cc:
  Auto merged
sql/item_create.h:
  Auto merged
sql/item_func.cc:
  Auto merged
sql/item_geofunc.cc:
  Auto merged
sql/item_row.cc:
  Auto merged
sql/item_strfunc.cc:
  Auto merged
sql/item_strfunc.h:
  Auto merged
sql/item_sum.cc:
  Auto merged
sql/item_sum.h:
  Auto merged
sql/log.cc:
  Auto merged
sql/log_event.cc:
  Auto merged
sql/mysqld.cc:
  Auto merged
sql/net_serv.cc:
  Auto merged
sql/password.c:
  Auto merged
sql/protocol.cc:
  Auto merged
sql/repl_failsafe.cc:
  Auto merged
sql/set_var.cc:
  Auto merged
sql/slave.cc:
  Auto merged
sql/sql_acl.cc:
  Auto merged
sql/sql_cache.cc:
  Auto merged
sql/sql_class.cc:
  Auto merged
sql/sql_derived.cc:
  Auto merged
sql/sql_do.cc:
  Auto merged
sql/sql_handler.cc:
  Auto merged
sql/sql_help.cc:
  Auto merged
sql/sql_lex.cc:
  Auto merged
sql/sql_lex.h:
  Auto merged
sql/sql_repl.cc:
  Auto merged
sql/sql_show.cc:
  Auto merged
sql/sql_union.cc:
  Auto merged
sql/examples/ha_archive.cc:
  Auto merged
sql/strfunc.cc:
  Auto merged
sql/table.cc:
  Auto merged
sql/table.h:
  Auto merged
sql/tztime.h:
  Auto merged
sql/udf_example.cc:
  Auto merged
sql/unireg.cc:
  Auto merged
Makefile.am:
  Simple merge
client/mysqldump.c:
  Simple merge
configure.in:
  Simple merge
libmysqld/lib_sql.cc:
  Automatic merge
mysql-test/r/func_str.result:
  Automatic merge
mysql-test/r/grant.result:
  simple merge
mysql-test/r/multi_update.result:
  automatc merge
mysql-test/r/ps.result:
  automatic merge
mysql-test/r/ps_2myisam.result:
  Automatic merge
mysql-test/r/ps_3innodb.result:
  Automatic merge
mysql-test/r/ps_4heap.result:
  Automatic merge
mysql-test/r/ps_5merge.result:
  Automatic merge
mysql-test/r/ps_6bdb.result:
  Automatic merge
mysql-test/r/ps_7ndb.result:
  Automatic merge
mysql-test/r/show_check.result:
  Automatic merge
mysql-test/r/subselect.result:
  Automatic merge
mysql-test/t/grant.test:
  Automatic merge
mysql-test/t/multi_update.test:
  Automatic merge
mysql-test/t/ps.test:
  Automatic merge
mysql-test/t/show_check.test:
  Automatic merge
ndb/docs/wl2077.txt:
  merge
ndb/src/mgmsrv/main.cpp:
  merge
scripts/mysql_fix_privilege_tables.sh:
  merge
sql/item.cc:
  Merge (difficult)
sql/item.h:
  simple merge
sql/item_cmpfunc.h:
  Automatic merge
sql/item_subselect.cc:
  Simple merge
sql/item_subselect.h:
  Automatic merge
sql/mysql_priv.h:
  Simple merge
sql/slave.h:
  Automatic merge
sql/sql_base.cc:
  Removed code that was backported to 4.1
sql/sql_class.h:
  Merge (some code moved to sql_insert.cc)
sql/sql_db.cc:
  simple merge
sql/sql_insert.cc:
  Merge (difficult as logic had changed both in 4.1 and 5.0)
  Some coded moved here from sql_class.h
sql/sql_parse.cc:
  Merge (difficult)
sql/sql_prepare.cc:
  Simple merge
sql/sql_select.cc:
  Automatic merge
sql/sql_table.cc:
  Simple merge
sql/sql_update.cc:
  Difficult merge because of different logic for multi-updates
sql/sql_yacc.yy:
  Simple merge
tests/client_test.c:
  Simple merge

1 files changed, 6 insertions, 2 deletions

diff --git a/sql/item_sum.h b/sql/item_sum.h
index c1352f7ae7d..157791722f6 100644
--- a/sql/item_sum.h
+++ b/sql/item_sum.h
@@ -442,18 +442,20 @@ class Item_sum_hybrid :public Item_sum
   enum_field_types hybrid_field_type;
   int cmp_sign;
   table_map used_table_cache;
+  bool was_values;  // Set if we have found at least one row (for max/min only)
 
   public:
   Item_sum_hybrid(Item *item_par,int sign)
     :Item_sum(item_par), sum(0.0), sum_int(0),
     hybrid_type(INT_RESULT), hybrid_field_type(FIELD_TYPE_LONGLONG),
-    cmp_sign(sign), used_table_cache(~(table_map) 0)
+    cmp_sign(sign), used_table_cache(~(table_map) 0), was_values(TRUE)
   { collation.set(&my_charset_bin); }
   Item_sum_hybrid(THD *thd, Item_sum_hybrid *item):
     Item_sum(thd, item), value(item->value),
     sum(item->sum), sum_int(item->sum_int), hybrid_type(item->hybrid_type),
     hybrid_field_type(item->hybrid_field_type),cmp_sign(item->cmp_sign), 
-    used_table_cache(item->used_table_cache)
+    used_table_cache(item->used_table_cache),
+    was_values(TRUE)
     { collation.set(item->collation); }
   bool fix_fields(THD *, TABLE_LIST *, Item **);
   table_map used_tables() const { return used_table_cache; }
@@ -473,6 +475,8 @@ class Item_sum_hybrid :public Item_sum
   void min_max_update_real_field();
   void min_max_update_int_field();
   void cleanup();
+  bool any_value() { return was_values; }
+  void no_rows_in_result();
 };