Many files:

  Added mmap support for MyISAM engine


configure.in:
  Added mmap support for MyISAM engine
include/my_base.h:
  Added mmap support for MyISAM engine
include/my_sys.h:
  Added mmap support for MyISAM engine
sql/ha_myisam.cc:
  Added mmap support for MyISAM engine
sql/mysql_priv.h:
  Added mmap support for MyISAM engine
sql/mysqld.cc:
  Added mmap support for MyISAM engine
sql/records.cc:
  Added mmap support for MyISAM engine
sql/set_var.cc:
  Added mmap support for MyISAM engine
storage/myisam/mi_close.c:
  Added mmap support for MyISAM engine
storage/myisam/mi_delete_all.c:
  Added mmap support for MyISAM engine
storage/myisam/mi_dynrec.c:
  Added mmap support for MyISAM engine
storage/myisam/mi_extra.c:
  Added mmap support for MyISAM engine
storage/myisam/mi_locking.c:
  Added mmap support for MyISAM engine
storage/myisam/mi_open.c:
  Added mmap support for MyISAM engine
storage/myisam/mi_packrec.c:
  Added mmap support for MyISAM engine
storage/myisam/mi_statrec.c:
  Added mmap support for MyISAM engine
storage/myisam/myisamdef.h:
  Added mmap support for MyISAM engine

1 files changed, 4 insertions, 0 deletions

diff --git a/sql/records.cc b/sql/records.cc
index ff0185195b0..5cb9b1e5c47 100644
--- a/sql/records.cc
+++ b/sql/records.cc
@@ -153,6 +153,10 @@ void init_read_record(READ_RECORD *info,THD *thd, TABLE *table,
   info->table=table;
   info->file= table->file;
   info->forms= &info->table;		/* Only one table */
+  
+  if (table->s->tmp_table == TMP_TABLE && !table->sort.addon_field)
+    VOID(table->file->extra(HA_EXTRA_MMAP));
+  
   if (table->sort.addon_field)
   {
     info->rec_buf= table->sort.addon_buf;