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[SPARK-4901] [SQL] Hot fix for ByteWritables.copyBytes #3742

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[SPARK-4901] [SQL] Hot fix for ByteWritables.copyBytes #3742

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8 changes: 7 additions & 1 deletion sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveInspectors.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -297,7 +297,13 @@ private[hive] trait HiveInspectors {
case x: ByteObjectInspector if x.preferWritable() => x.get(data)
case x: HiveDecimalObjectInspector => HiveShim.toCatalystDecimal(x, data)
case x: BinaryObjectInspector if x.preferWritable() =>
x.getPrimitiveWritableObject(data).copyBytes()
// BytesWritable.copyBytes() only available since Hadoop2
// In order to keep backward-compatible, we have to copy the
// bytes with old apis
val bw = x.getPrimitiveWritableObject(data)
val result = new Array[Byte](bw.getLength())
System.arraycopy(bw.getBytes(), 0, result, 0, bw.getLength())
result
case x: DateObjectInspector if x.preferWritable() =>
x.getPrimitiveWritableObject(data).get()
// org.apache.hadoop.hive.serde2.io.TimestampWritable.set will reset current time object
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