anishshri-db commented on code in PR #47104:
URL: https://github.com/apache/spark/pull/47104#discussion_r1663210224
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sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/IncrementalExecution.scala:
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@@ -187,23 +187,33 @@ class IncrementalExecution(
}
}
- object WriteStatefulOperatorMetadataRule extends SparkPlanPartialRule {
+ // Planning rule used to record the state schema for the first run and
validate state schema
+ // changes across query runs.
+ object StateSchemaAndOperatorMetadataRule extends SparkPlanPartialRule {
override val rule: PartialFunction[SparkPlan, SparkPlan] = {
+ // In the case of TransformWithStateExec, we want to collect this
StateSchema
+ // filepath, and write this path out in the OperatorStateMetadata file
case stateStoreWriter: StateStoreWriter if isFirstBatch =>
+ val stateSchemaVersion = stateStoreWriter match {
+ case _: TransformWithStateExec => sparkSession.sessionState.conf.
+
getConf(SQLConf.STREAMING_TRANSFORM_WITH_STATE_OP_STATE_SCHEMA_VERSION)
+ case _ => 2
+ }
+ val stateSchemaPaths =
+ stateStoreWriter.validateAndMaybeEvolveStateSchema(
+ hadoopConf,
+ currentBatchId,
+ stateSchemaVersion)
+ // write out the state schema paths to the metadata file
val metadata = stateStoreWriter.operatorStateMetadata()
+ // TODO: Populate metadata with stateSchemaPaths if is v2
Review Comment:
nit: `if the version is v2` ?
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