Hi Everyone, In the last community sync on Materialized Views [1], we agreed to split the information that is used to determine the materialized view staleness to two parts: Lineage Information and State Information. We have made a lot of progress on representing both but one issue remains open:
Both lineage information and state information express facts about the child objects of the MV, and to correlate those facts we need some sort of an ID for those objects. The open question is whether the ID should be of type sequence ID or UUID (i.e., the Iceberg UUID of the object). I have described the issue in more detail in this doc [2]. I have also added some thoughts on the advantages of using UUIDs in the same doc. Further, there is a discussion thread on that topic in the MV spec doc [3]. Please feel free to comment on the docs or share your thoughts in the thread. After the discussion we can move forward to a vote. Thanks, Walaa. [1] https://lists.apache.org/thread/bhmxo1w1bdp1p2hh842kpm2gy1g5rscp [2] https://docs.google.com/document/d/1-OaPqm8ahVT3_OCbVdAPQ_wZ8I3ToeqU3RLUjcyKQM0/edit [3] https://docs.google.com/document/d/1UnhldHhe3Grz8JBngwXPA6ZZord1xMedY5ukEhZYF-A/edit?disco=AAABPUgvras
