Fix of UNION code

Added heap_delete_table
Added HA_EXTRA_PREPARE_FOR_DELETE
Added and use my_dup() for faster open of tables.
Removed not working no-mix-table-type


BitKeeper/deleted/.del-=6~33f33b0a159dc5d5:
  Delete: =6
heap/hp_clear.c:
  Cleanup
heap/hp_close.c:
  Added delayed delete
heap/hp_create.c:
  Added heap_delete_table
heap/hp_delete.c:
  cleanup
heap/hp_test2.c:
  Added heap_delete_table
include/heap.h:
  Added heap_delete_table
include/my_base.h:
  Added HA_EXTRA_PREPARE_FOR_DELETE
include/my_sys.h:
  Adde my_dup and set_prealloc_root
isam/extra.c:
  Added HA_EXTRA_PREPARE_FOR_DELETE
myisam/mi_check.c:
  use my_dup
myisam/mi_extra.c:
  use my_dup
myisam/mi_open.c:
  use my_dup
myisam/myisamchk.c:
  use my_dup
myisam/myisamdef.h:
  use my_dup
mysys/Makefile.am:
  my_dup
mysys/hash.c:
  Add hash_replace
mysys/mf_pack.c:
  cleanup
mysys/my_alloc.c:
  Add set_prealloc_root
mysys/my_fstream.c:
  cleanup
mysys/my_lib.c:
  cleanup
mysys/my_seek.c:
  cleanup
sql/ha_heap.cc:
  Uses heap_delete_table()
sql/mysqld.cc:
  Fix SIGHUP usage
  Remove no-mix-table-types
sql/share/czech/errmsg.txt:
  new error message
sql/share/danish/errmsg.txt:
  new error message
sql/share/dutch/errmsg.txt:
  new error message
sql/share/english/errmsg.txt:
  new error message
sql/share/estonian/errmsg.txt:
  new error message
sql/share/french/errmsg.txt:
  new error message
sql/share/german/errmsg.txt:
  new error message
sql/share/greek/errmsg.txt:
  new error message
sql/share/hungarian/errmsg.txt:
  new error message
sql/share/italian/errmsg.txt:
  new error message
sql/share/japanese/errmsg.txt:
  new error message
sql/share/korean/errmsg.txt:
  new error message
sql/share/norwegian-ny/errmsg.txt:
  new error message
sql/share/norwegian/errmsg.txt:
  new error message
sql/share/polish/errmsg.txt:
  new error message
sql/share/portuguese/errmsg.txt:
  new error message
sql/share/romanian/errmsg.txt:
  new error message
sql/share/russian/errmsg.txt:
  new error message
sql/share/slovak/errmsg.txt:
  new error message
sql/share/spanish/errmsg.txt:
  new error message
sql/share/swedish/errmsg.txt:
  new error message
sql/sql_base.cc:
  remove no-mix-table-type
sql/sql_parse.cc:
  Fix UNION code

1 files changed, 1 insertions, 2 deletions

diff --git a/sql/ha_heap.cc b/sql/ha_heap.cc
index 13dccc2bf64..eff69893502 100644
--- a/sql/ha_heap.cc
+++ b/sql/ha_heap.cc
@@ -247,7 +247,7 @@ THR_LOCK_DATA **ha_heap::store_lock(THD *thd,
 
 int ha_heap::delete_table(const char *name)
 {
-  int error=heap_delete_all(name);
+  int error=heap_delete_table(name);
   return error == ENOENT ? 0 : error;
 }
 
@@ -272,7 +272,6 @@ ha_rows ha_heap::records_in_range(int inx,
   return 10;					// Good guess
 }
 
-/* We can just delete the heap on creation */
 
 int ha_heap::create(const char *name, TABLE *form, HA_CREATE_INFO *create_info)