Merge 4.1 into 5.0 (first pass).

BitKeeper/etc/ignore:
  auto-union
BitKeeper/etc/logging_ok:
  auto-union
BitKeeper/deleted/.del-cron-build:
  Delete: netware/BUILD/cron-build
BitKeeper/deleted/.del-crontab:
  Delete: netware/BUILD/crontab
BitKeeper/triggers/post-commit:
  Auto merged
client/mysql.cc:
  Auto merged
client/mysqltest.c:
  Auto merged
configure.in:
  Auto merged
include/my_global.h:
  Auto merged
include/my_pthread.h:
  Auto merged
include/mysql_com.h:
  Auto merged
libmysqld/Makefile.am:
  Auto merged
myisam/mi_check.c:
  Auto merged
myisam/myisamchk.c:
  Auto merged
myisam/myisamdef.h:
  Auto merged
myisam/sort.c:
  Auto merged
mysql-test/r/connect.result:
  Auto merged
mysql-test/r/rpl_temporary.result:
  Auto merged
mysql-test/r/show_check.result:
  Auto merged
mysql-test/r/variables.result:
  Auto merged
mysql-test/t/subselect.test:
  Auto merged
mysql-test/t/variables.test:
  Auto merged
netware/BUILD/compile-AUTOTOOLS:
  Auto merged
netware/BUILD/compile-linux-tools:
  Auto merged
netware/BUILD/compile-netware-END:
  Auto merged
netware/BUILD/compile-netware-START:
  Auto merged
netware/BUILD/compile-netware-all:
  Auto merged
netware/BUILD/compile-netware-debug:
  Auto merged
netware/BUILD/compile-netware-standard:
  Auto merged
netware/BUILD/mwasmnlm:
  Auto merged
netware/BUILD/mwccnlm:
  Auto merged
netware/BUILD/mwldnlm:
  Auto merged
netware/BUILD/nwbootstrap:
  Auto merged
sql/filesort.cc:
  Auto merged
sql/ha_myisam.cc:
  Auto merged
sql/item.h:
  Auto merged
sql/item_create.cc:
  Auto merged
sql/item_func.h:
  Auto merged
sql/log.cc:
  Auto merged
sql/log_event.cc:
  Auto merged
sql/protocol.cc:
  Auto merged
sql/records.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_base.cc:
  Auto merged
sql/sql_class.cc:
  Auto merged
sql/sql_class.h:
  Auto merged
sql/sql_db.cc:
  Auto merged
sql/sql_delete.cc:
  Auto merged
sql/sql_derived.cc:
  Auto merged
sql/sql_error.cc:
  Auto merged
sql/sql_load.cc:
  Auto merged
sql/sql_prepare.cc:
  Auto merged
sql/sql_repl.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
sql/sql_show.cc:
  Auto merged
sql/sql_table.cc:
  Auto merged
sql/sql_union.cc:
  Auto merged

1 files changed, 7 insertions, 1 deletions

diff --git a/sql/sql_derived.cc b/sql/sql_derived.cc
index c61e8f42343..94e241ec520 100644
--- a/sql/sql_derived.cc
+++ b/sql/sql_derived.cc
@@ -206,7 +206,13 @@ int mysql_derived(THD *thd, LEX *lex, SELECT_LEX_UNIT *unit,
 	  else
 	    unit->exclude_level();
 	  org_table_list->db= (char *)"";
-#ifndef DBUG_OFF
+#if 0
+	  /* QQ This was #ifndef DBUG_OFF, but that caused crashes with
+	   *    certain subselect args to SPs. Since ->derived is tested
+	   *    for non-null value in some places in the code, this seems
+	   *    to be the wrong way to do it. Simply letting derived be 0
+	   *    appears to work fine. /pem
+	   */
 	  /* Try to catch errors if this is accessed */
 	  org_table_list->derived=(SELECT_LEX_UNIT *) 1;
 #endif