clintropolis commented on a change in pull request #11004:
URL: https://github.com/apache/druid/pull/11004#discussion_r596497565
##########
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)
Review comment:
I was wrong, the default contiguous `getDelta` methods are not used, but
`int[] indexes` is used by all un-aligned decoders (1,2,4,12,20,24,40,48,56)
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