func tableRangesToPBRanges(tableRanges []plan.TableRange) []*tipb.KeyRange {
hrs := make([]*tipb.KeyRange, 0, len(tableRanges))
for _, tableRange := range tableRanges {
pbRange := new(tipb.KeyRange)
pbRange.Low = codec.EncodeInt(nil, tableRange.LowVal)
hi := tableRange.HighVal
if hi != math.MaxInt64 {
hi++
}
pbRange.High = codec.EncodeInt(nil, hi)
hrs = append(hrs, pbRange)
}
return hrs
}
func (e *XSelectIndexExec) doTableRequest(txn kv.Transaction, handles []int64) (*xapi.SelectResult, error) {
selTableReq := new(tipb.SelectRequest)
startTs := txn.StartTS()
selTableReq.StartTs = &startTs
selTableReq.TableInfo = tablecodec.TableToProto(e.indexPlan.Table)
selTableReq.Fields = resultFieldsToPBExpression(e.indexPlan.Fields())
for _, h := range handles {
if h == math.MaxInt64 {
// We can't convert MaxInt64 into an left closed, right open range.
continue
}
pbRange := new(tipb.KeyRange)
pbRange.Low = codec.EncodeInt(nil, h)
pbRange.High = codec.EncodeInt(nil, h)
selTableReq.Ranges = append(selTableReq.Ranges, pbRange)
}
selTableReq.Where = conditionsToPBExpression(e.indexPlan.FilterConditions...)
return xapi.Select(txn.GetClient(), selTableReq, 10)
}