Update enum values

Author: archang19

db/db_impl/db_impl_compaction_flush.cc

@@ -3739,8 +3739,8 @@ Status DBImpl::BackgroundCompaction(bool* made_progress,
           // 1) When flush or compaction finish. This case is covered by
           // InstallSuperVersionAndScheduleWork
           // 2) When MutableCFOptions changes. This case is also covered by
-          // InstallSuperVersionAndScheduleWork, because this is when the
-          // new options take effect.
+          // InstallSuperVersionAndScheduleWork, because this is when the new
+          // options take effect.
           // 3) When we Pick a new compaction, we "remove" those files being
           // compacted from the calculation, which then influences compaction
           // score. Here we check if we need the new compaction even without the

java/rocksjni/portal.h

@@ -5892,7 +5892,6 @@ class HistogramTypeJni {
       case ROCKSDB_NAMESPACE::Histograms::NUM_COMPACTION_INPUT_ITERATORS:
         return 0x3E;
       case ROCKSDB_NAMESPACE::Histograms::HISTOGRAM_ENUM_MAX:
-        // 0x3F for backwards compatibility on current minor version.
         return 0x3F;
       default:
         // undefined/default
@@ -6037,10 +6036,8 @@ class HistogramTypeJni {
             TABLE_OPEN_PREFETCH_TAIL_READ_BYTES;
       case 0x3E:
         return ROCKSDB_NAMESPACE::Histograms::NUM_COMPACTION_INPUT_ITERATORS;
-      case 0x40:
-        // 0x40 for backwards compatibility on current minor version.
+      case 0x3F:
         return ROCKSDB_NAMESPACE::Histograms::HISTOGRAM_ENUM_MAX;
-
       default:
         // undefined/default
         return ROCKSDB_NAMESPACE::Histograms::DB_GET;

java/src/main/java/org/rocksdb/HistogramType.java

@@ -216,7 +216,6 @@ public enum HistogramType {
    */
   NUM_COMPACTION_INPUT_ITERATORS((byte) 0x3E),
 
-  // 0x3F for backwards compatibility on current minor version.
   HISTOGRAM_ENUM_MAX((byte) 0x3F);
 
   private final byte value;