PDavid commented on code in PR #6361:
URL: https://github.com/apache/hbase/pull/6361#discussion_r1820469762


##########
hbase-client/src/main/java/org/apache/hadoop/hbase/filter/PrefixFilter.java:
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@@ -142,6 +155,31 @@ boolean areSerializedFieldsEqual(Filter o) {
     return Bytes.equals(this.getPrefix(), other.getPrefix());
   }
 
+  @Override
+  public Cell getNextCellHint(Cell cell) {
+    byte[] hintBytes;
+    if (reversed) {
+      // On reversed scan hint should be the prefix with last byte incremented
+      hintBytes = increaseLastNonMaxByte(this.prefix);

Review Comment:
   Thanks for the added explanation. Makes perfect sense. I changed the reverse 
hint to be pre-computed.



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