Beispiel #1
0
func (p *planner) createDescriptorWithID(
	idKey roachpb.Key, id sqlbase.ID, descriptor sqlbase.DescriptorProto,
) error {
	descriptor.SetID(id)
	// TODO(pmattis): The error currently returned below is likely going to be
	// difficult to interpret.
	//
	// TODO(pmattis): Need to handle if-not-exists here as well.
	//
	// TODO(pmattis): This is writing the namespace and descriptor table entries,
	// but not going through the normal INSERT logic and not performing a precise
	// mimicry. In particular, we're only writing a single key per table, while
	// perfect mimicry would involve writing a sentinel key for each row as well.
	descKey := sqlbase.MakeDescMetadataKey(descriptor.GetID())

	b := &client.Batch{}
	descID := descriptor.GetID()
	descDesc := sqlbase.WrapDescriptor(descriptor)
	if log.V(2) {
		log.Infof(p.ctx(), "CPut %s -> %d", idKey, descID)
		log.Infof(p.ctx(), "CPut %s -> %s", descKey, descDesc)
	}
	b.CPut(idKey, descID, nil)
	b.CPut(descKey, descDesc, nil)

	p.setTestingVerifyMetadata(func(systemConfig config.SystemConfig) error {
		if err := expectDescriptorID(systemConfig, idKey, descID); err != nil {
			return err
		}
		return expectDescriptor(systemConfig, descKey, descDesc)
	})

	return p.txn.Run(b)
}
// isVirtualDescriptor checks if the provided DescriptorProto is an instance of
// a Virtual Descriptor.
func isVirtualDescriptor(desc sqlbase.DescriptorProto) bool {
	return desc.GetID() == keys.VirtualDescriptorID
}