Github user viirya commented on a diff in the pull request: https://github.com/apache/spark/pull/19222#discussion_r179318575 --- Diff: common/unsafe/src/main/java/org/apache/spark/unsafe/array/ByteArrayMethods.java --- @@ -48,6 +49,16 @@ public static int roundNumberOfBytesToNearestWord(int numBytes) { public static int MAX_ROUNDED_ARRAY_LENGTH = Integer.MAX_VALUE - 15; private static final boolean unaligned = Platform.unaligned(); + /** + * MemoryBlock equality check for MemoryBlocks. + * @return true if the arrays are equal, false otherwise + */ + public static boolean arrayEqualsBlock( --- End diff -- I think this only works for `ByteArrayMemoryBlock`, doesn't it?
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