Resolved merge from 4.1 -> 5.0 (mainly Guilhem's work with mysqldump)

BitKeeper/etc/ignore:
  auto-union
configure.in:
  Auto merged
include/my_global.h:
  Auto merged
include/my_sys.h:
  Auto merged
include/mysql.h:
  Auto merged
include/mysqld_error.h:
  Auto merged
mysql-test/mysql-test-run.sh:
  Auto merged
mysql-test/r/alter_table.result:
  Auto merged
mysql-test/r/ndb_autodiscover.result:
  Auto merged
mysql-test/r/null.result:
  Auto merged
mysql-test/r/ps_2myisam.result:
  Auto merged
mysql-test/r/ps_3innodb.result:
  Auto merged
mysql-test/r/ps_4heap.result:
  Auto merged
mysql-test/r/ps_5merge.result:
  Auto merged
mysql-test/r/ps_6bdb.result:
  Auto merged
mysql-test/t/alter_table.test:
  Auto merged
mysql-test/t/null.test:
  Auto merged
ndb/src/mgmsrv/main.cpp:
  Auto merged
sql/field.cc:
  Auto merged
sql/ha_ndbcluster.cc:
  Auto merged
sql/handler.h:
  Auto merged
sql/item.cc:
  Auto merged
sql/item.h:
  Auto merged
sql/item_timefunc.cc:
  Auto merged
sql/mysqld.cc:
  Auto merged
sql/slave.cc:
  Auto merged
sql/slave.h:
  Auto merged
sql/sql_class.h:
  Auto merged
sql/sql_db.cc:
  Auto merged
sql/sql_lex.h:
  Auto merged
sql/share/czech/errmsg.txt:
  Auto merged
sql/share/danish/errmsg.txt:
  Auto merged
sql/share/dutch/errmsg.txt:
  Auto merged
sql/share/english/errmsg.txt:
  Auto merged
sql/share/estonian/errmsg.txt:
  Auto merged
sql/share/french/errmsg.txt:
  Auto merged
sql/share/german/errmsg.txt:
  Auto merged
sql/share/greek/errmsg.txt:
  Auto merged
sql/share/hungarian/errmsg.txt:
  Auto merged
sql/share/italian/errmsg.txt:
  Auto merged
sql/share/japanese/errmsg.txt:
  Auto merged
sql/share/korean/errmsg.txt:
  Auto merged
sql/share/norwegian-ny/errmsg.txt:
  Auto merged
sql/share/norwegian/errmsg.txt:
  Auto merged
sql/share/polish/errmsg.txt:
  Auto merged
sql/share/portuguese/errmsg.txt:
  Auto merged
sql/share/romanian/errmsg.txt:
  Auto merged
sql/share/russian/errmsg.txt:
  Auto merged
sql/share/serbian/errmsg.txt:
  Auto merged
sql/share/slovak/errmsg.txt:
  Auto merged
sql/share/spanish/errmsg.txt:
  Auto merged
sql/share/swedish/errmsg.txt:
  Auto merged
sql/share/ukrainian/errmsg.txt:
  Auto merged

1 files changed, 2 insertions, 2 deletions

diff --git a/sql/item.cc b/sql/item.cc
index 59126603544..157b420805c 100644
--- a/sql/item.cc
+++ b/sql/item.cc
@@ -490,13 +490,13 @@ bool DTCollation::aggregate(DTCollation &dt, uint flags)
     }
     else if ((flags & MY_COLL_ALLOW_COERCIBLE_CONV) &&
              derivation < dt.derivation &&
-             dt.derivation == DERIVATION_COERCIBLE)
+             dt.derivation >= DERIVATION_COERCIBLE)
     {
       // Do nothing;
     }
     else if ((flags & MY_COLL_ALLOW_COERCIBLE_CONV) &&
              dt.derivation < derivation &&
-             derivation == DERIVATION_COERCIBLE)
+             derivation >= DERIVATION_COERCIBLE)
     {
       set(dt);
       strong= nagg;