func (d *ddl) getReorgInfo(t *meta.Meta, job *model.Job) (*reorgInfo, error) {
var err error
info := &reorgInfo{
Job: job,
d: d,
first: job.SnapshotVer == 0,
}
if info.first {
// get the current version for reorganization if we don't have
var ver kv.Version
ver, err = d.store.CurrentVersion()
if err != nil {
return nil, errors.Trace(err)
} else if ver.Ver <= 0 {
return nil, errors.Errorf("invalid storage current version %d", ver.Ver)
}
job.SnapshotVer = ver.Ver
} else {
info.Handle, err = t.GetDDLReorgHandle(job)
if err != nil {
return nil, errors.Trace(err)
}
}
if info.Handle > 0 {
// we have already handled this handle, so use next
info.Handle++
}
return info, errors.Trace(err)
}