Hi everyone,
I am new to apache beam, but I had experiences on spark streaming. I have a daily updated bigquery table, I want to use this bigquery table as a lookup table, read this table into beam as bounded PCollection<TableRow> and refresh this collection within beam on daily basis, I named this variable bigqueryTableRows. I also had another pubsub topic messages, I want to read this message as unbounded PCollection<TableRow>, I named this variable as pubsubTableRows. then join bigqueryTableRows with pubsubTableRows. finally write result into bigquery. I have checked all the examples under beam's github repository: https://github.com/apache/beam/tree/d906270f243bb4de20a7f0baf514667590c8c494/examples/java/src/main/java/org/apache/beam/examples. But none matches my case. Any suggestion on how I should implement my pipeline? Many Thanks, Steven