This strategy is just for explaining Dataset/DataFrame created by spark.readStream.
It won't affect the execution, because StreamingRelation will be replaced with
StreamingExecutionRelation in StreamingQueryManager and StreamingExecutionRelation will
be replaced with the real relation using the Source in StreamExecution.
This strategy is just for explaining
Dataset/DataFrame
created byspark.readStream
. It won't affect the execution, becauseStreamingRelation
will be replaced withStreamingExecutionRelation
inStreamingQueryManager
andStreamingExecutionRelation
will be replaced with the real relation using theSource
inStreamExecution
.