func (d *ddl) dropSchemaData(tIDs []int64, startKey kv.Key, job *model.Job, m *meta.Meta) (bool, error) {
if len(tIDs) == 0 {
return true, nil
}
var isFinished bool
var nextStartKey kv.Key
for i, id := range tIDs {
job.TableID = id
if startKey == nil {
startKey = tablecodec.EncodeTablePrefix(id)
}
limit := defaultBatchSize
delCount, err := d.dropTableData(startKey, job, limit)
if err != nil {
return false, errors.Trace(err)
}
if delCount == limit {
isFinished = false
nextStartKey = job.Args[len(job.Args)-1].(kv.Key)
break
}
if i < len(tIDs)-1 {
tIDs = tIDs[i+1:]
} else {
tIDs = nil
}
startKey = nil
isFinished = true
continue
}
job.TableID = 0
job.Args = []interface{}{tIDs, nextStartKey}
return isFinished, nil
}