gianm commented on a change in pull request #11004:
URL: https://github.com/apache/druid/pull/11004#discussion_r597096377
##########
File path:
processing/src/main/java/org/apache/druid/segment/data/VSizeLongSerde.java
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@@ -413,9 +412,81 @@ public void close() throws IOException
}
}
+ /**
+ * Unpack bitpacked long values from an underlying contiguous memory block
+ */
public interface LongDeserializer
{
+ /**
+ * Unpack long value at the specified row index
+ */
long get(int index);
+
+ /**
+ * Unpack a contiguous vector of long values at the specified start index
of length and adjust them by the supplied
+ * delta base value.
+ */
+ default void getDelta(long[] out, int outPosition, int startIndex, int
length, long base)
+ {
+ for (int i = 0; i < length; i++) {
+ out[outPosition + i] = base + get(startIndex + i);
+ }
+ }
+
+ /**
+ * Unpack a non-contiguous vector of long values at the specified indexes
and adjust them by the supplied delta base
+ * value.
+ */
+ default int getDelta(long[] out, int outPosition, int[] indexes, int
length, int indexOffset, int limit, long base)
Review comment:
Thanks for running the tests. It seems worth it to keep it this way.
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