sql/field.h:
  Cleanup
sql/filesort.cc:
  Cleanup
sql/opt_range.cc:
  Remove index in use
sql/sql_base.cc:
  Allow Berkeley DB tables used only the index when the query only uses
  the index + data from the primary key
sql/sql_select.cc:
  Fix for left join optimization
BitKeeper/etc/logging_ok:
  Logging to logging@openlogging.org accepted