Function plugin_var_bookmark_key

sql/sql_plugin.cc:2657–2661

#define BOOKMARK_MEMALLOC   0x80

static inline char plugin_var_bookmark_key(uint flags)
{
  return (flags & PLUGIN_VAR_TYPEMASK) |
         (flags & PLUGIN_VAR_MEMALLOC ? BOOKMARK_MEMALLOC : 0);
}

#define EXTRA_OPTIONS 3 /* options for: 'foo', 'plugin-foo' and NULL */