Github user cloud-fan commented on a diff in the pull request: https://github.com/apache/spark/pull/21912#discussion_r213539696 --- Diff: sql/catalyst/src/main/java/org/apache/spark/sql/catalyst/expressions/UnsafeArrayData.java --- @@ -473,13 +473,13 @@ public static UnsafeArrayData fromPrimitiveArray( return result; } - public static UnsafeArrayData forPrimitiveArray(int offset, int length, int elementSize) { - return fromPrimitiveArray(null, offset, length, elementSize); + public static UnsafeArrayData forPrimitiveArray(int length, int elementSize) { + return fromPrimitiveArray(null, 0, length, elementSize); --- End diff -- is it safe? I vaguely remember the address of offheap memory block is usually not 0.
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