Github user cloud-fan commented on a diff in the pull request: https://github.com/apache/spark/pull/19222#discussion_r177693101 --- Diff: sql/catalyst/src/main/java/org/apache/spark/sql/catalyst/expressions/UnsafeArrayData.java --- @@ -27,6 +27,9 @@ import org.apache.spark.unsafe.array.ByteArrayMethods; import org.apache.spark.unsafe.bitset.BitSetMethods; import org.apache.spark.unsafe.hash.Murmur3_x86_32; +import org.apache.spark.unsafe.memory.ByteArrayMemoryBlock; +import org.apache.spark.unsafe.memory.OnHeapMemoryBlock; +import org.apache.spark.unsafe.memory.MemoryBlock; --- End diff -- we only need to import MemoryBlock
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