anishshri-db commented on code in PR #45467:
URL: https://github.com/apache/spark/pull/45467#discussion_r1530883632
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sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/TransformWithStateExec.scala:
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@@ -127,13 +152,53 @@ case class TransformWithStateExec(
mappedIterator
}
+ private def processInitialStateRows(
+ keyRow: UnsafeRow,
+ initStateIter: Iterator[InternalRow]): Unit = {
+ val getKeyObj =
+ ObjectOperator.deserializeRowToObject(keyDeserializer,
groupingAttributes)
+
+ val getStateValueObj =
+ ObjectOperator.deserializeRowToObject(initialStateDeserializer,
initialStateDataAttrs)
+
+ val keyObj = getKeyObj(keyRow) // convert key to objects
+ ImplicitGroupingKeyTracker.setImplicitKey(keyObj)
+ val initStateObjIter = initStateIter.map(getStateValueObj.apply)
+
+ initStateObjIter.foreach { initState =>
+ statefulProcessor
+ .asInstanceOf[StatefulProcessorWithInitialState[Any, Any, Any, Any]]
+ .handleInitialState(keyObj, initState)
+ }
+ ImplicitGroupingKeyTracker.removeImplicitKey()
+ }
+
private def processNewData(dataIter: Iterator[InternalRow]):
Iterator[InternalRow] = {
val groupedIter = GroupedIterator(dataIter, groupingAttributes,
child.output)
groupedIter.flatMap { case (keyRow, valueRowIter) =>
val keyUnsafeRow = keyRow.asInstanceOf[UnsafeRow]
handleInputRows(keyUnsafeRow, valueRowIter)
}
}
+// TODO double check this
Review Comment:
nit: whats pending here ?
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