// writeTableDesc implements the SchemaAccessor interface.
func (p *planner) writeTableDesc(tableDesc *sqlbase.TableDescriptor) error {
if isVirtualDescriptor(tableDesc) {
panic(fmt.Sprintf("Virtual Descriptors cannot be stored, found: %v", tableDesc))
}
return p.txn.Put(sqlbase.MakeDescMetadataKey(tableDesc.GetID()),
sqlbase.WrapDescriptor(tableDesc))
}
func restoreTable(
ctx context.Context,
sst engine.RocksDBSstFileReader,
txn *client.Txn,
table *sqlbase.TableDescriptor,
overwrite bool,
) error {
log.Infof(ctx, "Restoring Table %q", table.Name)
tableStartKey := roachpb.Key(sqlbase.MakeIndexKeyPrefix(table, table.PrimaryIndex.ID))
tableEndKey := tableStartKey.PrefixEnd()
existingDesc, err := txn.Get(sqlbase.MakeDescMetadataKey(table.GetID()))
if err != nil {
return err
}
existingData, err := txn.Scan(tableStartKey, tableEndKey, 1)
if err != nil {
return err
}
if existingDesc.Value != nil || len(existingData) > 0 {
if overwrite {
// We're about to Put the descriptor, so don't bother deleting it.
if err := txn.DelRange(tableStartKey, tableEndKey); err != nil {
return err
}
} else {
return errors.Errorf("table %q already exists", table.Name)
}
}
tableDescKey := sqlbase.MakeDescMetadataKey(table.GetID())
if err := txn.Put(tableDescKey, sqlbase.WrapDescriptor(table)); err != nil {
return err
}
return Import(ctx, sst, txn, engine.MVCCKey{Key: tableStartKey}, engine.MVCCKey{Key: tableEndKey})
}
// writeTableDesc implements the SchemaAccessor interface.
func (p *planner) writeTableDesc(tableDesc *sqlbase.TableDescriptor) error {
return p.txn.Put(sqlbase.MakeDescMetadataKey(tableDesc.GetID()),
sqlbase.WrapDescriptor(tableDesc))
}