+1 to deprecating setRowPrefixFilter. PR looks good, as I commented yesterday, if you could include your nice example as a unit test with this PR, that would be really great. Thanks for this nice find!
On Thu, 19 Nov 2020 at 6:02 AM, Guanghao Zhang <zghao...@gmail.com> wrote: > I am +1 to deprecated setRowPrefixFilter method. This method name is > setRowPrefixFilter but not use filter and only set start row and end row. I > thought this could be done by user. > > 唐天航 <tangtianhang...@gmail.com> 于2020年11月19日周四 上午12:45写道： > > > Hi, > > I have opened an issue HBASE-25299 > > <https://issues.apache.org/jira/browse/HBASE-25299> about > > Scan#setRowPrefixFilter > > Unexpected behavior. > > > > e.g. > > > > startRow : "112" > > > > rowPrefixFilter : "11" > > > > The Result of this scan might contain : "111", which is unexpected. > > > > public Scan setRowPrefixFilter(byte[] rowPrefix) { > > if (rowPrefix == null) { > > setStartRow(HConstants.EMPTY_START_ROW); > > setStopRow(HConstants.EMPTY_END_ROW); > > } else { > > this.setStartRow(rowPrefix); > > this.setStopRow(calculateTheClosestNextRowKeyForPrefix(rowPrefix)); > > } > > return this; > > } > > > > Scan#setRowPrefixFilter achieves this function by setting startRow and > > stopRow, ignoring the situation that startRow may have been set. > > > > > > I have discussed this issue with @infraio and he suggested to deprecate > > this method because modifying it may cause compatibility issues. > > > > Is this plan acceptable? Hope to get some suggestions. > > > > > > Thank you. Regards > > >
