table/table.go
func (t *Table) Close() error {
	if t.loadingMode == options.MemoryMap {
		y.Munmap(t.mmap)
	}

	return t.fd.Close()
}
func (t *Table) Close() error {
	if t.loadingMode == options.MemoryMap {
		y.Munmap(t.mmap)
	}

	return t.fd.Close()
}
// Close closes the open table.  (Releases resources back to the OS.)