Job is idle — throughput ~0; structure shown.
Fragment 51563 (Actor 735953,735952)
StreamMaterialize { columns: [subscription_name, rw_timestamp], stream_key: [subscription_name], pk_columns: [subscription_name], pk_conflict: Overwrite }
├── output: [ subscription_name, rw_timestamp ]
├── stream key: [ subscription_name ]
└── StreamFilter [upsert] { predicate: IsNotNull(rw_timestamp) } { output: [ subscription_name, rw_timestamp ], stream key: [] }
└── StreamUnion { all: true } { output: [ subscription_name, rw_timestamp ], stream key: [] }
├── MergeExecutor { output: [ subscription_name, rw_timestamp ], stream key: [] }
└── StreamUpstreamSinkUnion { output: [ subscription_name, rw_timestamp ], stream key: [] }
Fragment 51564 (Actor 735961,735962)
StreamDml { columns: [subscription_name, rw_timestamp] } { output: [ subscription_name, rw_timestamp ], stream key: [] }
└── StreamSource { output: [ subscription_name, rw_timestamp ], stream key: [] }