Function getIndexVersion

pkg/tablecodec/tablecodec.go:967–976

(value []byte)

}

func getIndexVersion(value []byte) int {
	if len(value) <= MaxOldEncodeValueLen {
		return 0
	}
	tailLen := int(value[0])
	if (tailLen == 0 || tailLen == 1) && value[1] == IndexVersionFlag {
		return int(value[2])
	}
	return 0
}

// DecodeIndexKVEx looks like DecodeIndexKV, the difference is that it tries to reduce allocations.
func DecodeIndexKVEx(key, value []byte, colsLen int, hdStatus HandleStatus, columns []rowcodec.ColInfo, buf []byte, preAlloc [][]byte) ([][]byte, error) {