func convertBackfillError(tableDesc *sqlbase.TableDescriptor, b *client.Batch) error {
// A backfill on a new schema element has failed and the batch contains
// information useful in printing a sensible error. However
// convertBatchError() will only work correctly if the schema elements are
// "live" in the tableDesc. Apply the mutations belonging to the same
// mutationID to make all the mutations live in tableDesc. Note: this
// tableDesc is not written to the k:v store.
mutationID := tableDesc.Mutations[0].MutationID
for _, mutation := range tableDesc.Mutations {
if mutation.MutationID != mutationID {
// Mutations are applied in a FIFO order. Only apply the first set
// of mutations if they have the mutation ID we're looking for.
break
}
tableDesc.MakeMutationComplete(mutation)
}
return convertBatchError(tableDesc, b)
}
