Streaming metrics is zero when select _metadata

Streaming metrics report all 0 (`processedRowsPerSecond`, etc) when selecting `_metadata` column. Because the logical plan from the batch and the actual planned logical are mismatched: https://github.com/apache/spark/blob/master/sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/ProgressReporter.scala#L348