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store/tikv/mock-tikv: remove useless encode (#3591)

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This commit is contained in:
Lynn
2017-07-01 13:30:23 +08:00
committed by Shen Li
parent 6d49c5160c
commit c7a714ffff
1 changed files with 9 additions and 4 deletions
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13
store/tikv/mock-tikv/executor.go
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@ -386,8 +386,9 @@ func (e *aggregateExec) getGroupKey() ([]byte, [][]byte, error) {
if length == 0 {
return nil, nil, nil
}
vals := make([]types.Datum, 0, len(e.groupByExprs))
row := make([][]byte, 0, len(e.groupByExprs))
bufLen := 0
vals := make([]types.Datum, 0, length)
row := make([][]byte, 0, length)
for _, item := range e.groupByExprs {
v, err := item.Eval(e.row)
if err != nil {
@ -398,10 +399,14 @@ func (e *aggregateExec) getGroupKey() ([]byte, [][]byte, error) {
if err != nil {
return nil, nil, errors.Trace(err)
}
bufLen += len(b)
row = append(row, b)
}
buf, err := codec.EncodeValue(nil, vals...)
return buf, row, errors.Trace(err)
buf := make([]byte, 0, bufLen)
for _, col := range row {
buf = append(buf, col...)
}
return buf, row, nil
}
// aggregate updates aggregate functions with row.